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USER MANUAL XF512E100MP Union Special

Maximum performance XF500 Series flatbed machines

FORWARD

This technical manual has been prepared to guide you in the maintenance of your new UNION SPECIAL MACHINE. Careful attention to the instructions for operating and adjusting these machines will enable you to maintain the superior performance and reliability designed and built into every UNION SPECIAL machine.

The Adjusting Instruction portion of this manual explains in detail the proper setting for each of the components related to forming the stitch and completing the functions of the machine. Figures are used to illustrate the adjustments using reference letters to point out specific items discussed.

Implementation of Preventive Maintenance Schedule can bring about significant improvements in operator productivity by avoiding costly equipment breakdowns. Whenever it becomes necessary to make repairs or replace parts on your machine, be sure to insist on genuine UNION SPECIAL Repair Parts. These parts are designed specifically for your machine and manufactured with utmost precision to assure long lasting service.

This Catalog has been made on the basis of available information. Changes in design and/or improvements may incorporate a slight modification of configuration in illustrations or part numbers.

CATALOG NO. 142M

SECOND EDITION

Copyright 1989

PRINTED IN USA

DECEMBER, 1989

INFORMATION SUBJECT TO CHANGE WITHOUT NOTICE

Each UNION SPECIAL machine is identified by a Style number, which on this machine Class, is stamped into the Style plate affixed to the right front of machine. Serial number is stamped into bed casting at the right rear base of machine.

NOTE: Instructions stating direction or location, such as right, left, front, or rear of machine, are given relative to the operator's position at the machine, unless otherwise noted. The handwheel rotates counterclockwise in operating direction, as viewed from the right end of the machine.

STYLES OF MACHINES

High speed, maximum performance, long arm flatbed, double locked stitch, plain feed machine. Totally enclosed feed and looper drive mechanism, fully automatic forced feed lubricating system with easily replaceable oil filter, independently driven rear needle guard, adjustable feed lift, quick adjustable looper avoid and built-in needle cooler.

XF511B100MF Single needle, MEDIUM capacity, wrench adjustable stitch change, thumbscrew adjustable needle frame eyelet, low inertia presser foot, permitting light presser foot pressure for positive feeding and chaining at high speeds; for long seams on light to medium weight fabrics such as trousers, skirts, coats, jackets, etc. Standard recommended needle Type 128 GBS, Size 90/036. Stitch range 7-10 S.P.I. Maximum recommended speed 8000 R.P.M., depending on operation.

XF511E101MF Single needle, MEDIUM capacity, quick stitch change mechanism, thumbscrew adjustable needle frame eyelet, low inertia presser foot permitting light presser foot pressure for positive feeding and chaining at high speeds. Equipped with a Close-Coupled Roller Puller, for long flat seams on medium weight fabrics such as trousers, coats, and perma-press materials. Standard recommended needle Type 128 GBS, Size 90/036. Stitch range 7-10 S.P.I. Maximum recommended speed 7500 R.P.M., depending on operation.

XF511E118MF Same as Style XF511E101MF except-equipped with Belt Puller.

XF511E152MF Same as Style XF511E118MF except-equipped with Power "AIR-KLIPP"® Chain Cutter.

XF511H100MF Same as Style XF511B100MF except-equipped with built-in oil cooler and quick stitch change mechanism. Maximum recommended speed 9000 R.P.M., depending on operation. Stitch range 7-10 S.P.I.

XF511H100MG Same as Style XF511H100MF except used for side and inseaming on men's work and dress pants made from medium weight material. Stitch range 10-14 S.P.I.

XF511H100MAW Same as Style XF511H100MF except-equipped with narrow feeding presser foot parts for a 3/16 inch (4.8mm) margin. Stitch range 7-10 S.P.I. Maximum recommended speed 8000 R.P.M., depending on operation.

XF511H112MF Same as Style XF511H100MF except-equipped with Power "AIR-KLIPP" Chain Cutter.

XF511H112MG Same as Style XF511H100MG except-equipped with Power "AIR-KLIPP" Chain Cutter.

STYLES OF MACHINES (Continued)

XF511H151MFSame as Style XF511H100MF except-equipped with Power "AIR-KLIPP" Chain Cutter and pneumatic stitch shortening device.
XF512E100HBTwo needle, HIGH capacity, for seaming trousers and similar garments made of medium heavy to heavy weight material. Right needle in front. Standard recommended needle Type 128 GBS, Size 100/040. Available in 7 S.P.I. ONLY. Standard gauge No. 1 ONLY. The seam produced has two rows of stitching with the strength of 14 S.P.I., yet the fabric is moved forward at a rate of 7 S.P.I. Maximum recommended speed 6500 R.P.M., depending on operation.
XF512E100MPTwo needle, MEDIUM capacity, quick stitch change mechanism, for piecing sleeves, joining shoulders and setting sleeves on ordinary quality shirts made with light to medium weight materials. Includes double lap seam folder 1/16 inch (1.6mm) capacity. Standard recommended needle Type 108 GHS, Size 70/027. Stitch range 9-14 S.P.I. Standard gauge Nos. 12 and 16. Maximum recommended speed 6500 R.P.M., depending on operation.
XF513E100HJThree needle, HIGH capacity, quick stitch change mechanism, for seaming wind breakers, mackinaws, lumber jacks and for similar operations on medium heavy to heavy weight material. Equipped with tractor type presser foot, Includes double lap seam folder 3/32 inch (2.4mm) capacity. Standard recommended needle Type 128 GAS, Size 125/049. Stitch range 7-10 S.P.I. Standard gauge Nos. 8 and 9. Maximum recommended speed 6500 R.P.M., depending on operation.
XF513E100HRThree needle, HIGH capacity, quick stitch change mechanism, for seaming sanforized denim and similar operations on medium to heavy weight materials. Includes double lap seam folder 1/8 inch (3.2mm) capacity. Standard recommended needle Type 128 GAS, 125/049. Stitch range 7-10 S.P.I. Standard gauge No. 9 ONLY. Maximum recommended speed 6500 R.P.M., depending on operation.
XF513E101HRSame as Style XF513E100HR except-equipped with a Close-Coupled Roller Puller.
XF513E112HRSame as Style XF513E100HR except-equipped with Power "AIR-KLIPP" Chain Cutter.

®"AIR-KLIPP" is a registered trademark of Union Special Corporation.

SAFETY RULES

Union Special XF512E100MP - SAFETY RULES - 1

CAUTION!

THIS SAFETY SYMBOL INDICATES YOUR PERSONAL SAFETY IS INVOLVED

TO PREVENT PERSONAL INJURY:

  • All power sources to the machine MUST be TURNED OFF before threading, oiling, adjusting or replacing parts.
  • Wear safety glasses.
  • All shields and guards MUST be in position before operating machine.
  • DO NOT tamper with safety shields, guards, etc., while machine is in operation.

LUBRICATION

IMPORTANT: Machine must be in a leveled position.

Oil has been drained from main reservoir before shipment. Use a straight mineral oil with a Saybolt viscosity of 90 to 125 seconds at 100 degrees Fahrenheit. This is equivalent to UNION SPECIAL Specification No. 175. Remove oil filler cap (A, Fig. 1) and fill to TOP line of oil level gauge (B). Replace oil filler cap.

CAUTION! On new machines, machines that have been out of service for an extended period of time OR machines that have been drained of oil and refilled... run machine slowly at 300 R.P.M. for approximately five minutes while paying strict attention to the oil flow indicator which should rise in the oil filler cap (A) and remain steady while machine is running. This must be noted to ensure that oil flow indicator is functioning and oil is circulating. Run machine and recheck oil level which MUST be maintained between the red lines of oil gauge.

To maintain maximum recommended speed and serviceability of these machines, refer to General Preventive Maintenance Schedule. Under no circumstances, should oil remain in the machine for more than one year. Two oil drain plugs are located in bottom of oil pan. ALWAYS replace oil filter when oil is changed. To replace filter remove four screws (C, Fig. 1), cover (D) and lift out filter, REMOVE (brass) BY-PASS VALVE FROM TOP OF OLD FILTER AND INSTALL IN NEW FILTER. Reassemble in reverse manner.

Union Special XF512E100MP - LUBRICATION - 1

text_image Technical schematic diagram of an electrical or mechanical device with labeled components A, B, C, and D

Union Special XF512E100MP - LUBRICATION - 2
PRESSURE OIL

Union Special XF512E100MP - LUBRICATION - 3
SIPHON RETURN

Union Special XF512E100MP - LUBRICATION - 4
RETURN OIL

Union Special XF512E100MP - LUBRICATION - 5
PRIORITY VALVE PRESSURE

Union Special XF512E100MP - LUBRICATION - 6
INLET

Union Special XF512E100MP - LUBRICATION - 7
FILTER BY-PASS
Fig. 1

Union Special XF512E100MP - LUBRICATION - 8

text_image PIVOT GUARD TO LEFT FOR THREADING UNION SPECIAL MAXIMUM PERFORMANCE UNION SPECIAL UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNION Special UNIONSpecial

A205

THREADING DIAGRAM

Union Special XF512E100MP - LUBRICATION - 9

text_image UNION Special MAXIMUM PERFORMANCE U18XF-500 PIVOT GUARD TO LEFT FOR THREADING For ease of threading, pull lever down and push looper holder to the right. CAUTION! Looper holder MUST be returned to extreme left and LOCKED by pulling release lever up before sewing. THREE THREAD TWO THREAD

A206

THREADING DIAGRAM

NEEDLES

Each needle has both a type and size number. Type number denotes the kind of shank, point, length, groove, finish, and other details. Size number, stamped on the needle shank in metric, denotes largest diameter of blade, measured midway between shank and eye. Collectively, type and size number represent the complete symbol, which is given on the label of all needles packaged and sold by UNION SPECIAL CORPORATION.

The type numbers of the needles recommended for each Style of machine covered by this catalog are given in the machine style description. Other needles are available, but the ones indicated are those recommended to produce the most satisfactory results. The type numbers of the recommended needles together with their descriptions, and the sizes available are listed below:

NEEDLE TYPEDESCRIPTIONSIZES AVAILABLE
108 GHSRound shank, ball point, double groove, struck groove, ball eye, spotted, chromium plated.70/027, 75/029, 80/032, 90/036, 125/049.
128 GASRound shank, round point, short, double groove, struck groove, ball eye, spotted, chromium plated.80/032, 90/036, 100/040, 110/044, 125/049, 140/054, 150/060, 170/067.
128 GBSRound shank, round point, short, double groove, struck groove, ball eye, spotted, ball point, chromium plated.80/032, 90/036, 100/040, 110/044, 125/049, 140/054, 150/060.

To have needle orders promptly and accurately filled, an empty package, a sample needle, or the type and size number should be forwarded. Use description on label. A complete order would read "1000 needles, Type 128 GBS, Size 90/036".

The following instructions explain in detail the proper setting for each of the components related to forming the stitch and completing the functions of the machine.

Adjustments are presented in sequence so that a logical progression is accomplished. Some adjustments performed out of sequence may have adverse effect on the function of other related parts.

NOTE: On earlier styles, machines equipped with a DURACOAT ALUMINUM needle bar; TORQUE needle bar connection screw, 10 to 12 in-lbs. (11.5 to 13.8 cm/kg).

On later styles, machines equipped with a DURACOAT MASKED ALUMINUM needle bar; TORQUE needle bar connection screw, 16 to 18 in-lbs. (18.4 to 20.7 cm/kg).

THREAD MACHINE AS ILLUSTRATED.

TIMING FEED TO NEEDLE

Union Special XF512E100MP - TIMING FEED TO NEEDLE - 1

text_image A A207

Fig. 2

Adjustment would be required if machine is feeding while the needle or needles are in the work.

To adjust; remove top cover, head cover and all other plates, supports and covers as required to provide accessibility to the feed mechanism chamber. Turn handwheel in operating direction to position needle bar connection (A, Fig. 2) at TOP of stroke.

Loosen four screws (A, Fig. 3) in upper mainshaft sprocket (B) and hold handwheel so upper mainshaft and needle bar cannot move. While holding handwheel firmly, turn lower mainshaft to position feed crank counterweight (A, Fig. 4) with its FLATS perpendicular to the bottom of machine and facing away from the operator, as viewed in Figure 4. TORQUE screws (A, Fig. 3) to 36 in-lbs (41 cm/kg).

Union Special XF512E100MP - TIMING FEED TO NEEDLE - 2

text_image A A B A208

Fig. 3

NOTE: Whenever "TIMING FEED TO NEEDLE" is corrected, always check "SYNCHRONIZING LOOPER AND NEEDLE MOTIONS."

SYNCHRONIZING LOOPER AND NEEDLE MOTIONS

Looper drive belt (A, Fig. 5) has proper tension if, when turning handwheel in operating direction to position looper in the center of its (right to left) travel... there is no noticeable (right to left) play in the looper mechanism.

Union Special XF512E100MP - SYNCHRONIZING LOOPER AND NEEDLE MOTIONS - 1

text_image FLATS A A209

Fig. 4

There should be approximately 1/8 inch (3.2mm) deflection in looper drive belt when pressing firmly with thumb, midway between sprockets (B and C). Adjustment can be made by loosening two screws (D) and turn looper module (E) clockwise (as viewed from handwheel end of machine) to tighten belt tension or counterclockwise to loosen belt tension.

It is easier to rotate looper module by turning cast-off plate mounting bracket (F). At this time, notch (G) on end of looper module should be facing in the upward position (between 9 and 3 o'clock). Loosen binder screw (H) and reposition cast-off plate mounting bracket (F) so its leading edge (J) is vertical to and parallel with bed casting. Retighten screw (H) assuring that the right side of mounting bracket is flush with right side of looper module. Retighten screws (D).

SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued)

To synchronize machine, remove needle bar eyelet guard, needle thread take-up cam wire, needle/s, presser foot, throat plate, looper/s, and feed dog. Turn handwheel to position needle bar at BOTTOM of stroke and looper holder at EXTREME right end of travel.

Using gauge No. 21227 R, mount gauge plate with throat plate attaching screws. Insert pin (included with gauge) into looper holder. Mount indicator block to machine head with one of the screws removed from needle bar eyelet guard. Insert shank of indicator gauge into indicator block tighten screw against shank, (See Sketch A for reference).

NOTE: For Style XF512's and XF513's use 21227 AD mounting plate.

Rotate handwheel in OPERATING direction until the pin in looper holder contacts gauge plate. Loosen screw (A, Fig. 6) in needle bar connection (B) and position needle bar (C) as required to set the pointer of indicator gauge at "0" and tighten screw (A) VERY LIGHTLY.

IMPORTANT: Refer to NOTE, page 9 for proper TORQUE of screw.

Rotate handwheel in REVERSE direction until pin in looper holder again makes contact with gauge plate and note the reading on the gauge. A variation of (1) graduation on the scale is permissible. If the reading is above "0", loosen screws (K, Fig. 5) while holding sprocket (B), turn handwheel clockwise. If the reading is below "0", hold sprocket, turn handwheel counterclockwise. Temporarily snug screws.

Rotate handwheel in OPERATING direction until pin in looper holder contacts gauge plate and note the reading on scale. If the reading is above "0", loosen screws (K) while holding sprocket (B), turn handwheel counterclockwise. If the reading is below "0", hold sprocket and turn handwheel clockwise. Temporarily snug screws.

Union Special XF512E100MP - SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued) - 1

text_image Technical diagram of a mechanical assembly with labeled components A through J, showing gear and housing connections.

Fig. 5

Union Special XF512E100MP - SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued) - 2

natural_image Technical line drawing of a sewing machine with no visible text or symbols

SKETCH A

Union Special XF512E100MP - SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued) - 3

text_image A212 B C A

Fig. 6

SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued)

Union Special XF512E100MP - SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued) - 1

text_image LOOPER BEHIND NEEDLE LOOPER IN FRONT OF NEEDLE GREATEST LEAST A 107 OPERATING DIRECTION

SKETCH B

Continue to check and adjust in both OPERATING and REVERSE directions until pointer of indicator gauge comes within (1) graduation on the scale when turning the handwheel in either direction and tighten screws (K) securely, assuring that drive belt is centered on sprockets.

If a synchronizing gauge is not available... turn the handwheel in operating direction to position looper point even with the left side of RIGHT needle and check the distance from the eye of needle to the bottom of looper blade.

Union Special XF512E100MP - SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued) - 2

text_image LOOPER BEHIND NEEDLE LEAST GREATEST LOOPER IN FRONT OF NEEDLE A108 REVERSE DIRECTION

SKETCH C

Turn handwheel in reverse direction to position looper even with the left side of RIGHT needle and check the distance from the eye of needle to the bottom of looper blade. If the distance was greater when handwheel was turned in operating direction, as viewed in Sketch B, loosen screws (K, Fig. 5) while holding sprocket (B), turn handwheel counterclockwise. If the distance was greater when handwheel was turned in reverse direction, as viewed in Sketch C, hold sprocket and turn handwheel clockwise.

Temporarily snug screws. Continue to check and adjust in both OPERATING and REVERSE directions until the distance from the eye of the RIGHT needle to the bottom of looper blade is the same in either direction, as viewed in Sketch D. Before tightening screws (K, Fig. 5) securely, be sure to have the drive belt centered on sprockets.

Union Special XF512E100MP - SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued) - 3

text_image For Proper SYNCHRONIZATION of Looper & Needle these two Dimensions will be the same Looper BEHIND Needle in OPERATING Direction Looper in FRONT of Needle in REVERSE Direction A109

SKETCH D

NEEDLE BAR ALIGNMENT (For Two and Three Needle Styles)

Insert a new set of needles. As a temporary setting, the TOP of needle bar (A, Fig. 7) should be approximately 1 7/8 inches (47.6mm) from the TOP of upper needle bar bushing when needle bar connection (B) is positioned at TOP of STROKE as shown in Figure 7.

NEEDLE BAR ALIGNMENT (Continued) (For Two and Three Needle Styles)

Adjustment can be made by loosening screw (C), reposition needle bar up or down as required and tighten screw (C) VERY LIGHTLY.

IMPORTANT: Refer to NOTE, page 9 for proper TORQUE of screw.

Rotate handwheel to ensure that needles center in the needle holes of throat plate as shown in Figure 8. Adjustment can be made by loosening screw (C, Fig. 7) slightly, allowing needle bar to be rotated as required, while being careful to maintain the temporary height setting and tighten screw (C) AS SPECIFIED. An additional 4-way directional adjustment of the throat plate can be accomplished as follows:

IMPORTANT: Adjustment of throat plate must be coordinated between needles and feed dog; refer to "FEED DOG SETTINGS". Loosen three screws (A, Fig. 8) in throat plate support (B). Loosen two screws (C) which secure locating ferrules, allowing the throat plate support to be repositioned slightly. Tighten screws (C) first, then screws (A).

CAUTION! Needle bar has a special coating. DO NOT wedge or pry with any type of tool, as damage to needle bar may result. Should needle head require assembling to needle bar, TORQUE 14-16 in-lbs (16-18 cm/kg).

LOOPER SETTING (For Single Needle Styles)

Insert a new needle, type and size specified. With looper positioned at EXTREME right end of travel, distance from centerline of needle to point of looper should be 5/32 inch (4.0mm). Adjustment can be made by loosening screw (A, Fig. 9) and turn screw (B) clockwise to increase looper gauge or counterclockwise to decrease. Apply pressure to the upper portion of looper holder (C) to the left while making this adjustment and locking with screw (A).

Looper gauge No. 21225-5/32 can be used advantageously while making this adjustment.

Union Special XF512E100MP - LOOPER SETTING (For Single Needle Styles) - 1

text_image A 1 7/8'' (47.6mm) C B A215

Fig. 7

Union Special XF512E100MP - LOOPER SETTING (For Single Needle Styles) - 2

text_image A B C A 2 14

Fig. 8

Union Special XF512E100MP - LOOPER SETTING (For Single Needle Styles) - 3

text_image 5/32" (4.0mm) A215 C B A

Fig. 9

LOOPER SETTING (Continued) (For Single Needle Styles)

Union Special XF512E100MP - LOOPER SETTING (Continued) (For Single Needle Styles) - 1

text_image A B C D A 216

Fig. 10

Looper must also be set so, as it travels to the left behind the needle, NOT to touch, but with a MAXIMUM clearance of .002 inch (.051mm). Adjustment can be made by loosening screw (A) and moving looper holder (C) forward or rearward on its shaft to obtain specified conditions; apply pressure to the upper portion of looper holder to the left while tightening screw (A).

LOOPER SETTING (For Two and Three Needle Styles)

If not previously done, insert a new set of needles; type and size specified. With looper holder at EXTREME right end of travel, distance from centerline of RIGHT needle to point of RIGHT looper should be dimension (A, Fig. 10); see chart. Adjustment can be made by pulling release lever (B) down and loosening screw (A, Fig. 11) in stop collar (B). Apply pressure against the upper portion of looper holder (C) to the LEFT while turning screw (D) in looper holder clockwise to increase looper gauge or counterclockwise to decrease. Applicable looper gauge can be used advantageously in making this adjustment.

Union Special XF512E100MP - LOOPER SETTING (For Two and Three Needle Styles) - 1

text_image A 217 C A D B E

Fig. 11

Continue to apply pressure against upper portion of looper to the LEFT while turning stop collar (B) to its EXTREME CLOCKWISE position and tighten screw (A) securely. Push up release lever (E) to lock looper holder in position. Adjust screw (C, Fig. 10) which incorporates a spring plunger, against the recess in cam of stop collar as required to attain the following conditions:

Pull release lever down and be able to push looper holder to the right, with a snapping motion (making loopers easily accessible for threading). Push looper holder to the left, with a snapping motion. Apply pressure against upper portion of looper holder to the LEFT and push release lever up to lock looper holder in operating position.

In locked position, the release lever should be approximately in line with middle looper as viewed from the right side of looper holder. Adjustment can be made by loosening screw (D, Fig. 10), reposition release lever as required and retighten screw.

LOOPER SETTING (Continued) (For Two and Three Needle Styles)

Loopers must also be set so, as they travel to the left behind the needles, NOT to touch, but with a MAXIMUM clearance of .002 inch (.051mm). Adjustment can be made by pulling release lever down, loosening screw (A, Fig. 11) in stop collar (B) allowing looper holder to be moved forward or rearward on its shaft, as required. Apply pressure against upper portion of looper holder to the LEFT while turning stop collar (B) to its EXTREME CLOCKWISE position and tighten screw (A) securely and push release lever up in locking position. RECHECK looper gauge.

Union Special XF512E100MP - LOOPER SETTING (Continued) (For Two and Three Needle Styles) - 1

text_image B 1/64" (.4mm) A D C A 2 16

Fig. 12

MACHINE STYLEDIMENSION A FIG. 10LOOPER GAUGE NO.
XF512E100HB-15/32 inch (4.0mm)21225-5/32
XF512E100MP-121/8 inch (3.2mm)21225-1/8
XF512E100MP-161/8 inch (3.2mm)21225-1/8
XF513E100HJ-85/32 inch (4.0mm)21225-5/32
XF513E100HJ-95/32 inch (4.0mm)21225-5/32
XF513E100HR-95/32 inch (4.0mm)21225-5/32
XF513E101HR-95/32 inch (4.0mm)21225-5/32
XF513E112HR-95/32 inch (4.0mm)21225-5/32

NEEDLE BAR HEIGHT

Turn handwheel in operating direction until POINT of looper (A, Fig. 12) is even with the LEFT side of needle (B). TOP of needle eye should be 1/64 inch (.4mm) below the under surface of looper blade, as shown in Figure 12. Adjustment can be made by loosening screw (C) and move needle bar (D) up or down as required.

IMPORTANT: Refer to NOTE, page 9 for proper TORQUE of screw.

NOTE: Needle bar has special coating. DO NOT wedge with any type of tool, as damage to needle bar may result.

IMPORTANT! Care must be taken not to disturb ALIGNMENT of needle bar while making this adjustment.

LOOPER AVOID

Machine is equipped with a quick adjustable looper avoid mechanism to accommodate extreme differences in needle sizes. As the looper travels from left to right with the needle bar descending, the needle point/s should contact ONLY the lower THIRD of the back of

Union Special XF512E100MP - LOOPER AVOID - 1

text_image A219 B A

Fig. 13

LOOPER AVOID (Continued)

Union Special XF512E100MP - LOOPER AVOID (Continued) - 1

text_image A 220 E A B C D

Fig. 14

looper blade/s. Adjustment can be made by loosening two screws (A, Fig. 13) and turn eccentric stud (B) towards the plus side (counterclockwise) for MORE looper avoid or towards the minus side (clockwise) for LESS. When properly set, tighten screws (A).

NOTE: Whenever looper avoid is changed, ALWAYS recheck "LOOPER SETTINGS".

REAR NEEDLE GUARD

At extreme forward end of travel, rear needle guard (A, Fig. 14) must be set horizontally not to contact needle/s (B) with a maximum clearance of .002 inch (.051mm).

Union Special XF512E100MP - REAR NEEDLE GUARD - 1

text_image A B A C A221

Fig. 15

Guard should be set as low as possible, yet have its vertical face approach approximately 3/64 inch (1.2mm) of needle point until point of looper (C) moving to the left, is even with the right side of needle. Adjustment can be made by loosening screw (D), reposition needle guard as required and retighten screw. If additional front to rear adjustment is required to maintain needle guard in a horizontal position, loosen screw (E) in pivot link which allows needle guard shaft to be rotated. Be sure to take up thrust by exerting pressure against needle guard holder to the left and pivot link to the right, while tightening screw (E).

NOTE: Change in stitch length WILL NOT require change in needle guard setting, but a change of needle size may.

Union Special XF512E100MP - REAR NEEDLE GUARD - 2

text_image C A B A222

Fig. 16

FEED DOG SETTINGS

Feed dog should be centered in throat plate with equal clearance on both sides and ends. At highest point of travel, feed dog teeth should extend the depth of a tooth or approximately 3/64 inch (1.2mm) above throat plate. MINOR (right to left) adjustments can be made by loosening three screws (A, Fig. 15) in throat plate support (B). Loosen two screws (C) which secure two locating ferrules used to align throat plate support. Reposition slightly as required considering both needle hole slot/s and feed dog slots. Tighten screws (C) first, then screws (A).

FEED DOG SETTINGS (Continued)

Front to rear adjustments can be made by loosening two screws (A, Fig. 16), reposition feed dog holder (B) as required. Press down on front of feed dog (C) while tightening screws (A). Feed dog can be leveled or tilted by removing throat plate, loosen two screws (A, Fig. 16) and screw (A, Fig. 17) so feed dog (B) can be raised enough to loosen locking screw (C).

Turn feed tilting cam (A, Fig. 18) as required to level feed dog as it comes out of throat plate. Retighten screw (C, Fig. 17) and screws (A, Fig. 16) while pressing down on front end of feed dog. Adjust feed dog height supporting screw (B, Fig. 18) to support feed dog after specified feed dog height has been determined by checking with feed dog and throat plate in place. When adjustments are completed, tighten screw (A, Fig. 17) while pressing down in front of feed dog. More or less FEED LIFT can be acquired by loosening screw (A, Fig. 19) and turning adjusting dial (B) towards the operator to increase feed lift. Turning away from operator decreases. Retighten screw (A). Turn handwheel in operating direction to ensure that feed dog does not strike throat plate or looper/s, throughout its path of travel.

CHANGING STITCH LENGTH (All Styles except XF511B100MF)

Stitch length can be changed by pressing down and turning stitch length regulating knob (A, Fig. 20) clockwise to shorten or counterclockwise to lengthen the stitch. Recheck front to rear clearances in throat plate as described under "FEED DOG SETTINGS" whenever stitch length is changed. Bottom limit stop (B) should be set by screw (C) to prevent regulating knob (A) from accidentally being turned beyond the desired maximum stitch length.

CHANGING STITCH LENGTH (For Style XF511B100MF)

Stitch length can be changed by loosening screw (A, Fig. 21) which is accessible through a slot in the right cloth plate (1/8 inch Allen wrench required). When moved towards the rear lengthens the stitch; moving

Union Special XF512E100MP - CHANGING STITCH LENGTH (For Style XF511B100MF) - 1

text_image A 223 B A C

Fig. 17

Union Special XF512E100MP - CHANGING STITCH LENGTH (For Style XF511B100MF) - 2

natural_image Technical mechanical assembly diagram showing components labeled A and B, with no readable text or symbols beyond labels

Fig. 18

Union Special XF512E100MP - CHANGING STITCH LENGTH (For Style XF511B100MF) - 3

text_image A B A 225

Fig. 19

CHANGING STITCH LENGTH (Continued) (For Style XF511B100MF)

towards the front acts the reverse. Recheck front to rear clearances in throat plate as described under "FEED DOG SETTINGS" whenever stitch length is changed. Tighten screw (A) securely.

LOW INERTIA PRESSER FOOT (For Styles XF511B100MF, XF511E101MF, 118MF, 152MF, XF511H100MF, 100MG, 112MF, 112MG and 151MF)

Union Special XF512E100MP - CHANGING STITCH LENGTH (Continued) (For Style XF511B100MF) - 1

text_image A B C A 2 2 6

Fig. 20
With needle bar at bottom of stroke and presser foot resting on throat plate, there should be 1/32 inch (.8mm) clearance between top of screw and top of slot in presser foot as viewed in Figure 22. There should be 1/16 inch (1.6mm) clearance between bottom of slot in lifter lever link (A) and bottom of presser bar guide (B) when foot lifter lever is released. If adjustment is required, loosen nut (C) and turn screw (D) down approximately 1/8 inch (3.2mm) below bottom surface of presser bar guide (B). Back off presser spring regulating screw and loosen screws (E) in presser bar guide (B) so that presser foot rests squarely on throat plate and screw (D) is touching the bottom of presser bar guide plate, then retighten screws (E).

Union Special XF512E100MP - CHANGING STITCH LENGTH (Continued) (For Style XF511B100MF) - 2

natural_image Technical line drawing of a mechanical assembly with labeled component A (no text or symbols beyond label)

Fig. 21

Turn presser spring regulating screw all the way down, then back off screw (D) counterclockwise to obtain the 1/32 inch (.8mm) dimension in presser foot; lock nut (C). Loosen screw (F) in lifter arm (G) and rotate arm slightly as required to obtain the 1/16 inch (1.6mm) dimension between link (A) and guide (B); retighten screw (F) ensuring no left to right shake in lifter arm (G).

FEEDING PRESSER FOOT (For Style XF511H100MAW)

With presser foot resting on throat plate, the distance from top of spring (A, Fig. 23) to top of yoke (B) should be 5/8 inch (15.9mm) and the line stamped across the presser foot bottom should line up with centerline of needle. As the presser foot is raised, its bottom should move VERY SLIGHTLY towards the rear... 1/64 inch (.4mm) maximum. If adjustment is required, proceed as follows:

FEEDING PRESSER FOOT (Continued) (For Style XF511H100MAW)

Remove presser spring regulating screw, presser bar spring guide and presser bar spring. Loosen nut (C, Fig. 22) and turn screw (D) down approximately 1/8 inch (3.2mm) below bottom surface of presser bar guide (B). Loosen screws (E) in presser bar guide (B). Adjust spring regulator nut (C, Fig. 23) as required, so its lower surface is 5/8 inch (15.9mm) from top of yoke (B) as viewed in Figure 23. With presser foot resting on throat plate and feed dog down below throat plate, press down on spring regulator nut (C) until the marks in presser foot bottom align with centerline of needle and positioned to keep needle in center of needle slot. Tighten screws (E, Fig. 22) securing presser bar guide to presser bar, ensuring stop screw (D) in presser bar guide is resting on bottom of presser bar guide plate.

Replace presser bar spring, spring guide and spring regulating screw. Turn regulating screw down until the top of its threaded portion is level with head casting. Rotate handwheel to position feed below throat plate with presser foot resting on throat plate. Depress presser foot lifter lever to see if presser foot bottom moves SLIGHTLY towards the rear before presser foot begins to lift. Adjustment can be made by turning stop screw (D, Fig. 23) clockwise to shorten or counterclockwise to lengthen the distance of travel.

Loosen screw (F, Fig. 22) in lifter arm (G) and rotate arm slightly as required to obtain 1/16 inch (1.6mm) clearance between link (A) and guide (B); retighten screw (F) ensuring no left to right shake in lifter arm (G).

Union Special XF512E100MP - FEEDING PRESSER FOOT (Continued) (For Style XF511H100MAW) - 1

text_image 1/32" (.8mm) 1/16" (1.6mm) A G A D C B F E A 228

Fig. 22

Union Special XF512E100MP - FEEDING PRESSER FOOT (Continued) (For Style XF511H100MAW) - 2

text_image 5/8" (15.9mm) A B C D LINE A 229

Fig. 23

Presser foot, at back of needle slot should cover most of throat plate land when resting directly on throat plate.

When presser foot bottom is raised by material and the feeding foot spring bottoms, rear of needle slot should clear the needle. Main presser bar should not begin to lift before the spring of feeding foot bottoms.

Purpose of the feeding presser foot is to make top and bottom plies of material feed the same amount without pulling on the bottom ply. Final adjustment may be required to match plies; turning nut (C, Fig. 23) to increase pressure on spring (A) will tend to feed the bottom ply more... decreasing pressure will tend to feed the top ply more.

PRESSER BAR AND PRESSER FOOT (For Styles XF512E100HB, MP, XF513E100HJ, 100HR, 101HR and 112HR)

Union Special XF512E100MP - PRESSER BAR AND PRESSER FOOT (For Styles XF512E100HB, MP, XF513E100HJ, 100HR, 101HR and 112HR) - 1

text_image H C A F D B 1/16 inch (1.6mm) E G A230

Fig. 24

With needle bar at bottom of stroke and presser foot resting squarely on throat plate, there should be a minimum clearance of 1/64 inch (.4mm) between the bottom of screw (A, Fig. 24) and bottom of slot in presser bar guide plate (B). At this time, there should be at LEAST 1/32 inch (.8mm) clearance between bottom of presser bar guide and top of lower presser bar bushing.

There should also be 1/16 inch (1.6mm) clearance between bottom of slot in lifter lever link (C) and bottom of presser bar guide (D) when foot lifter lever is released. If adjustment is required, proceed as follows:

Back off presser bar spring regulator to release tension on spring. Loosen two screws (E) in presser bar guide (D). Loosen nut (F) and turn screw (A) down against guide plate (B) to obtain at least 5/64 inch (2.0mm) clearance between bottom of presser bar guide (D) and guide plate (B). Align presser foot with needles and press down FIRMLY while tightening two screws (E) in presser bar guide (D).

NOTE: This setting was necessary to prevent damage to the scraper edge of presser bar bushing, should presser foot be removed from machine.

Union Special XF512E100MP - PRESSER BAR AND PRESSER FOOT (For Styles XF512E100HB, MP, XF513E100HJ, 100HR, 101HR and 112HR) - 2

text_image A B C A 2 3 1

Fig. 25

Turn presser bar spring regulator down. Back off screw (A) to obtain the 1/64 inch (.4mm) dimension between bottom of screw and bottom of slot in presser bar guide plate (B), lock nut (F).

Loosen screw (G) in lifter arm (H) and rotate arm slightly as required to obtain the 1/16 inch (1.6mm) dimension between link (C) and guide (D), retighten screw (G) ensuring no left to right shake in lifter arm (H).

Adjust presser bar spring regulator so it exerts only enough pressure on presser foot to feed the work uniformly. Turning it clockwise increases the pressure, counterclockwise acts the reverse.

THREAD TENSION RELEASE

Needle thread tension assembly (A, Fig. 25) is set correctly when the tension discs (B) begin to release thread as the presser foot is raised to within 1/8 inch (3.2mm) from the end of its travel and completely released when presser foot has

reached its highest position. Adjustment can be made by loosening screw (C) and lower the tension assembly (A) to advance the release action or raise tension assembly to retard the release action. Hold tension assembly in desired position while retightening screw (C).

Loosen lock nut (A, Fig. 26) and adjust screw (B) in presser foot lifter lever, allowing presser foot to be raised to its highest position without interfering with needle head. Lock nut (A) securely.

LOOPER THREAD TAKE-UP AND CAST-OFF PLATE

Looper thread take-up (A, Fig. 27) should be centered, left to right, in cast-off plate (B). As the needle bar is descending, the take-up should be in position to cast-off looper thread just as the tip of needle is even with the bottom of looper. Adjustment can be made by loosening two screws in take-up (through access hole in cast-off plate), reposition take-up as required and retighten screws. Set adjustable eyelets (C) 1/2 inch (12.7mm) below centerline of their mounting screws.

If cast-off wire is rubbing take-up, loosen screw (D), center the wire (E) and retighten screw. If retaining finger is rubbing take-up, loosen screw (F), center the finger (G) and retighten screw. If retaining finger is on an angle, loosen screw (H), turn retaining finger support (J) slightly as required and retighten screw. Height of cast-off plate is set correctly when the lowest point of take-up cam is even with the top surface of cast-off plate. Adjustment can be made by turning handwheel in operating direction to locate the lowest point of the take-up cam, loosen screw (K) and raise or lower cast-off plate to correct height; then tighten screw (K) securely.

Union Special XF512E100MP - LOOPER THREAD TAKE-UP AND CAST-OFF PLATE - 1

text_image A232 B A

Fig. 26

Union Special XF512E100MP - LOOPER THREAD TAKE-UP AND CAST-OFF PLATE - 2

text_image Technical diagram of a mechanical device with labeled components A through J, showing internal components and a magnified view.

Fig. 27

THREAD CONTROL SETTINGS

(For Styles XF511B100MF, XF511E101MF, 118MF, 152MF, XF511H100MF, MG, MAW, 112MF, 112MG and 151MF)

Needle bar eyelet (A, Fig. 28) and needle thread cam (B) should be set in conjunction with each other so needle thread just contacts needle thread cam (B) at TOP and BOTTOM of stroke.

Adjustments can be made by bringing needle bar up, loosen screw (C) slightly, reposition eyelet (A) up or down as required. TORQUE screw (C) to 10 in-lbs. (11.5 cm/kg). Needle thread cam can be adjusted forward or rearward as required by loosening needle thread cam mounting screw (D) and retighten screw. Loosen screw (A, Fig. 29) and position strike-off wire (B) 1/2 inch (0.5mm) from top surface of top cover to underside of strike-off wire. With needle bar at BOTTOM of stroke and Thread Control Assembly adjustable eyelet (C) set at "T". Apply necessary tension to both needle and looper-thread and start to sew. Looper thread tension should be light. Adjust needle thread tension to pull up smallest needle loop as required. At this point a tight stitch will be achieved. Without changing needle thread tension move Thread Control Assembly adjustable eyelet to "L". This will produce a loose seam with longer needle loops.

NOTE: Adjustment of strike-off wire can be raised to accommodate thick dense material.

Union Special XF512E100MP - THREAD CONTROL SETTINGS - 1

text_image C B A D A201

Fig. 28

THREAD CONTROL SETTINGS

(For Styles XF512E100HB, MP, XF513E100HJ HR, 101HR and 112HR)

Needle bar eyelet (A, Fig. 30) should be set with its eyelets 1/16 inch (1.6mm) below strike-off (B) on needle thread take-up cam wire (C) as shown in Figure 30, with needle bar at BOTTOM of stroke.

Adjustments can be made by bringing needle bar up, loosen screw (D) slightly, bring needle bar down to BOTTOM of stroke, reposition eyelet (A) as required and bring needle bar up. TORQUE screw (D) to 10 in-lbs. (11.5 cm/kg).

Union Special XF512E100MP - THREAD CONTROL SETTINGS - 1

text_image L11231 C B 0 A 1/2 (0.5mm) A250 Union Systa

Fig. 29

Needle thread take-up cam wire (C) should be set to barely contact needle threads with needle bar at top of stroke. Adjustment can be made by loosening cam mounting screw (E), reposition cam forward or rearward as required and retighten screw. Auxiliary strike-off (F) should be set so needle threads contact strike-off when needle bar is at BOTTOM of stroke with Thread Control Assembly adjustable eyelet (C, Fig. 29) set at "T". Loosen screw (A) and position strike-off (B) as specified and retighten screw. Thread tension on needle thread should be just enough to pull up uniform stitches. Thread tension applied on looper thread should be just enough to steady thread.

POWER "AIR-KLIPP" CHAIN CUTTER ADJUSTMENTS

NOTE: References to Fig. 31 are as viewed from rear of machine; references to Fig. 32 are as viewed from left end of machine.

Upper knife (A, Fig. 31) can be replaced by removing two screws (B). In order to replace lower knife... the upper knife, rear cover and thread inlet must be removed. Lower knife (C) is held in position by roll pin (A, Fig. 32) and tension spring (D, Fig. 31). To remove lower knife, lift up and tilt to the right. When replacing lower knife, be sure to engage end of tension spring through the hole in the side of lower knife before inserting in the slide block (E). Also be sure that the slot in lower knife is located over roll pin.

SETTING KNIFE CROSS OVER

Adjustment will be necessary after replacing or repairing knives. With sewing motor switch in "OFF" position and air line connected to air motor, depress treadle until air motor begins to operate.

IMPORTANT! Be sure that lower knife does NOT strike against knife housing or feed chamber cover. Adjustment should be accomplished by loosening one screw (F, Fig. 31) and reposition left or right slightly.

Carefully press against slide block (E, Fig. 31) until air motor stalls.

With treadle still depressed, check the knife cross over. The cross over of the lower knife to the upper knife is positioned correctly, when the lower knife is 1/32 inch (.8mm) from the front of the upper knife as shown in Figure 31. If adjustment is required, loosen screw (F), reposition slide block (E) slightly as required. Retighten screw (F) and recheck cross over.

SHEAR ANGLE ADJUSTMENT

Shear angle should be .003 inch (.076mm), measured at rear cutting edge of lower knife (B, Fig. 32) and cutting edge of upper knife (D).

Adjustment can be made by turning lower knife adjusting screw (C, Fig. 32) counterclockwise (a small amount at a time) while manually

Union Special XF512E100MP - SHEAR ANGLE ADJUSTMENT - 1

text_image A 190 D A C 1/16" (1.6mm) E F B

Fig. 30

Union Special XF512E100MP - SHEAR ANGLE ADJUSTMENT - 2

text_image 1/32" (.8mm) A C G B D F E A 234

Fig. 31

Union Special XF512E100MP - SHEAR ANGLE ADJUSTMENT - 3

text_image .003'' (.076mm) A 235 D B C A

Fig. 32

Union Special XF512E100MP - SHEAR ANGLE ADJUSTMENT - 4

text_image A236 A B

Fig. 33

operating slide block (E, Fig. 31) continuously checking with a piece of thread to see if knives are cutting. As soon as the knives fail to cut the thread and the shear angle is zero, turn screw (C, Fig. 32), same as (G, Fig. 31) clockwise approximately 1/4 turn. Check cutting action of knives with sewing motor switch "ON".

SETTING PRESSURE VALVES

Regulate valve on pneumatic control devices for air motor of the "AIR-KLIPP" Chain Cutter to approximately 20-22 p.s.i. (1.5 bar) when air motor is operating. Regulate valve on pneumatic control device for the suction air to obtain maximum suction, yet so that the FABRIC TO BE SEWN will not be cut by the "AIR-KLIPP" Chain Cutter knives.

PULLER TIMING

Union Special XF512E100MP - PULLER TIMING - 1

text_image A237 B A D C D

Fig. 34

The Close-Coupled Puller (BELT or ROLLER) must be timed so the intermittent feeding action stops before the needle/s is/are entering the work. NOTE: This will depend on the thickness of material and stitch length being sewn. If adjustment is required, remove top cover which is secured with four screws. Loosen four set screws (A, Fig. 33) in sprocket (B). Advance or retard sprocket on shaft as required. When proper timing is obtained, position sprocket on its shaft (left or right) so drive belt is centered in the puller drive assembly. Torque four screws (A) to 35 in-lbs (40 cm/kg).

There should be approximately 1/8 inch (3.2mm) deflection in puller drive belt (A, Fig. 34) when pressing firmly between sprocket (B) and puller drive assembly. Adjustment can be made by loosening one screw (C) securing eccentric (D) and rotate eccentric counterclockwise as viewed in Figure 34, to tighten belt, clockwise acts the reverse. Be sure to maintain .006-.010 inch (.150-.254mm) between eccentric and drive housing. Tighten screw (C) securely. Replace top cover and tighten four screws.

The feeding motion of the puller is achieved by two sprockets. By using various combinations of nine different sprockets, (59) different puller stitch lengths can be obtained. Refer to sprocket charts on Page 28 that list the various sprocket combinations. NOTE: Actual stitch length may vary slightly due to material being sewn. When ordering sprockets use the appropriate dash number. Example: C50042-Z-( ).

To change sprockets loosen two screws (A, Fig. 35) and position screws to top of bracket to release tension on stitch length drive belt. NOTE: Belt guard has been removed for clarity. With drive belt in relaxed position, sprocket (B and C) can be removed. When installing sprockets (B and C) make sure that hub of sprocket is flush with end of shaft and 1st screw in operating direction is on the flat of shaft. Reassemble drive belt, tighten 2nd screw in sprockets (B and C) securely. Rotate handwheel in operating direction to make sure belt does not bind within belt guard. It may be necessary to reposition sprockets (B and C) slightly (left or right). Pull down firmly on puller assembly, making sure puller roller is setting evenly on Idler Roller and tighten two screws (A) securely.

The roller puller belt, which is located under hinged belt guard (D) should have 1/8 inch (3.2mm) deflection when pressing firmly between drive sprockets. If adjustment is required loosen two allen screws (A, Fig. 36) and turn eccentric shaft (B) slightly to apply tension on belt. Turning shaft clockwise tightens belt counterclockwise acts the reverse. CAUTION! Care must be taken not to disturb eccentric shaft (left or right). Tighten two screws (A) securely.

Belt Puller (A, Fig. 37) must be setting evenly on cloth plate (B). On Style XF511E152MF Belt Puller will rest on "AIR-KLIPP" inlet.

Union Special XF512E100MP - PULLER TIMING - 2

text_image A23B B C D A

Fig. 35

Union Special XF512E100MP - PULLER TIMING - 3

text_image A B A239

Fig. 36

Union Special XF512E100MP - PULLER TIMING - 4

text_image A A140 B

Fig. 37

Union Special XF512E100MP - PULLER TIMING - 5

text_image A B C A 2 4 1

Fig. 38

Union Special XF512E100MP - PULLER TIMING - 6

text_image A242 A B

Fig. 39

Union Special XF512E100MP - PULLER TIMING - 7

text_image G B 1/32 A C D E F S A243

Fig. 40

PULLER STITCH LENGTH (Continued)

Belt puller drive belt (A, Fig. 38) should have approximately 1/8 inch (3.2mm) deflection when pressing firmly between drive sprockets. If adjustment is required hold lock nut (B) and loosen lock nut (C). Turn nut (B) to apply tension. Hold nut (B) firmly and tighten nut (C) securely.

IDLER ROLLER

Puller Roller must be set evenly on Idler Roller (A, Fig. 39) to ensure that the material will be pulled straight through the sewing area. Adjustment for feeding can be made by shimming Idler Roller if necessary to achieve even mating. To shim roller remove one screw (B, Fig. 39) securing roller assembly. Remove Idler Roller Assembly and add shims as necessary between plate and bearing blocks to ensure even mating between Puller Roller and Idler Roller.

PULLER LIFT ADJUSTMENT

With puller in operating position and presser foot resting on throat plate there should be 1/32 inch (.8mm) between puller lifter link (A, Fig. 40) and puller lifting pin (B). If adjustment is required loosen screw (C) in upper presser foot lifting shaft connection and raise or lower link (A) as required. Tighten connection screw (C) securely.

NOTE: When presser foot starts to lift, puller must lift at the same time.

For sewing operations not requiring puller action the machine can be run with puller raised off the material by turning the manual lock-up pin (D) up to position under stop collar (E). If the puller has insufficient clearance to clear material, stop collar (E) can be raised or lowered on tension shaft (F)

PULLER LIFT ADJUSTMENT (Continued)

to suit. Adjust puller tension regulator (G) so it exerts only enough pressure on puller to feed work. Turning regulator clockwise to increase the presser, counterclockwise acts the reverse. If material does not pull straight through behind presser foot adjust main stitch length slightly so material will lay flat, until material is straight.

STITCH SHORTENING DEVICE

Stitch shortening device is set at the factory to produce one-half of the recommended stitch length per inch. If adjustment is required loosen lock screw (A, Fig. 41) and turn stop screw (B) clockwise for less stitches per inch, counterclockwise gives more stitches per inch.

The connecting arm (A, Fig. 42) is connected to the collar adaptor (B) located on the feed rocker shaft (C). The connecting arm (A) activates the feed rocker shaft to achieve the desired stitch length depending on operation.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 1

text_image A B C A245

Fig. 40

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 2

text_image B A A244

Fig. 41

This chart shows the stitch length produced by available sprocket combinations. Sprockets furnished in the machines produces approximately 9.2 S.P.I. If a different length is required, refer to the chart for appropriate dash number when ordering sprockets-C50042-Z-( ).

Belt Puller Sprocket Variations

DRIVEN SPROCKET PART NUMBERNUMBER OF STITCHES PER INCH
13.10 SPI(1.94mm)11.92 SPI(2.13mm)10.92 SPI(2.33mm)10.08 SPI(2.52mm)9.37 SPI(2.71mm)8.74 SPI(2.91mm)8.19 SPI(3.10mm)7.71 SPI(3.29mm)
12.37 SPI(2.05mm)11.26 SPI(2.26mm)10.31 SPI(2.46mm)9.52 SPI(2.67mm)8.84 SPI(2.87mm)8.25 SPI(3.08mm)7.73 SPI(3.28mm)7.28 SPI(3.49mm)6.88 SPI(3.69mm)
11.65 SPI(2.18mm)10.60 SPI(2.40mm)9.71 SPI(2.62mm)8.96 SPI(2.83mm)8.33 SPI(3.05mm)7.77 SPI(3.27mm)7.28 SPI(3.49mm)6.86 SPI(3.70mm)6.48 SPI(3.92mm)
9.94 SPI(2.56mm)9.10 SPI(2.79mm)8.40 SPI(3.02mm)7.81 SPI(3.25mm)7.28 SPI(3.49mm)6.83 SPI(3.72mm)6.43 SPI(3.95mm)6.07 SPI(4.19mm)
8.49 SPI(2.99mm)7.84 SPI(3.24mm)7.28 SPI(3.49mm)6.79 SPI(3.74mm)6.37 SPI(3.99mm)6.00 SPI(4.24mm)5.66 SPI(4.49mm)
7.28 SPI(3.49mm)6.77 SPI(3.75 mm)6.31 SPI(4.02mm)5.92 SPI(4.29mm)5.57 SPI(4.56mm)5.26 SPI(4.83mm)
6.24 SPI(4.07mm)5.83 SPI(4.30mm)5.46 SPI(4.65mm)5.14 SPI(4.94mm)4.86 SPI(5.23mm)
5.34 SPI(4.76mm)5.00 SPI(5.08mm)4.71 SPI(5.39mm)4.45 SPI(5.71mm)
4.55 SPI(5.58mm)4.29 SPI(5.92mm)4.05 SPI(6.27mm)
-10-11-12-13-14-15-16-17-18
-10-11-12-13-14-15-16-17-18

Roller Puller Sprocket Variations

DRIVEN SPROCKET PART NUMBERNUMBER OF STITCHES PER INCH
14.69 SPI(1.73mm)13.37 SPI(1.90mm)12.25 SPI(2.07mm)11.30 SPI(2.25mm)10.50 SPI(2.42mm)9.80 SPI(2.59mm)9.18 SPI(2.77mm)8.65 SPI(2.94mm)
13.87 SPI(1.83mm)12.62 SPI(2.01mm)11.56 SPI(2.20mm)10.67 SPI(2.38mm)9.91 SPI(2.56mm)9.25 SPI(2.75mm)8.67 SPI(2.93mm)8.16 SPI(3.11mm)7.71 SPI(3.30mm)
13.06 SPI(1.94mm)11.88 SPI(2.13mm)10.89 SPI(2.53mm)10.05 SPI(2.53mm)9.34 SPI(2.72mm)8.71 SPI(2.92mm)8.16 SPI(3.11mm)7.69 SPI(3.30mm)7.26 SPI(3.50mm)
11.14 SPI(2.28mm)10.21 SPI(2.49mm)9.42 SPI(2.70mm)8.75 SPI(2.90mm)8.16 SPI(3.11mm)7.65 SPI(3.32mm)7.21 SPI(3.52mm)6.80 SPI(3.73mm)
9.52 SPI(2.67mm)8.76 SPI(2.89mm)8.16 SPI(3.11mm)7.62 SPI(3.33mm)7.14 SPI(3.56mm)6.72 SPI(3.78mm)6.35 SPI(4.00mm)
8.16 SPI(3.11mm)7.59 SPI(3.35 mm)7.08 SPI(3.59mm)6.63 SPI(3.83mm)6.25 SPI(4.07mm)5.90 SPI(4.31mm)
7.00 SPI(3.63mm)6.53 SPI(3.89mm)6.12 SPI(4.15mm)5.76 SPI(4.41mm)5.44 SPI(4.67mm)
5.98 SPI(4.24mm)5.61 SPI(4.53mm)5.28 SPI(4.81mm)4.99 SPI(5.09mm)
5.10 SPI(4.98mm)4.81 SPI(5.28mm)4.54 SPI(5.60mm)
-10-11-12-13-14-15-16-17-18
DRIVE SPROCKET PART NUMBER

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 3

natural_image Technical line drawing of a mechanical assembly with gears, springs, and housing (no text or labels)

EXPLODED VIEWS

AND

DESCRIPTION OF PARTS

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 4

text_image TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 19-21 in. 1bs. (22-24 cm/kg) TORQUE TO 16-18 in. 1bs. (18-21 cm/kg) TORQUE TO 16-18 in. 1bs. (18-21 cm/kg)

LUBRICATION PARTS

Ref.No.PartNo.DescriptionAmt.Req.
1C50093 CGOil Syphon Assembly1
2C50093 CHTube, syphon drain1
3C50093 CJTube, oil return1
4C50093 CLFitting, barb1
556322 BGasket2
6671 F-4Fitting, barb1
779-31Ball, steel1
8C50093 CMManifold, oil syphon1
922730Screw1
1050393 AXTube, oil return1
1150393 DCOil Return Tube Assembly1
12671 F-41Tee, union1
1350393 AYTube, sleeve1
14666-322Felt1
1550393 CUTube, oil return1
1650393 CSSpring, tube retainer1
1750393 CYTube, oil return1
1850393 VRetainer, wire (oil tube)1
19660-220"0" Ring5
2022652 B-12Screw4
21660-885Clamp, oil tube1
22C50094 PTube, oil4
23660-683"0" Ring5
2473Screw2
25C50094 GScreen, oil filter1
26C50094 AMScreen, oil1
27C50094 FStrainer, oil1
28C50094 VTube, oil1
2922720 BScrew, oil connection2
30C50094 UConnection, oil, single feed2
31C50094 CConnection, oil, single feed7
32C50094 YTube, oil1
33RI-37Ring, wire6
34C50093 BXValve, check1
35C50094 AATube, oil1
3622720 AScrew, oil connection8
37C50094 ZTube, oil1
38C50094 BConnection, oil, double feed1
39RM3728-1Fitting, oil1
40C50094 RTube, oil1
41C50093 BENut2
42660-750Sleeve, compression2
43660-749Nut, compression2
44C50094 ACTube, oil1
45C50093 CVValve, priority1
46660-855Connector, compression1
47671 C-4Connector, male1
48C50094Tube, oil1
49666-294Elbow, male2
50670 E-2Tie, cable; to secure Ref. No. 2 to Ref. No. 481
51671 F-41Tee, union1
52 and 53See Following Page

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 5

text_image Technical diagram of mechanical assembly with numbered components for identification

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 6

text_image TORQUE TO 28 in. 1bs. (32 cm/kg) 16 17 18 19 20 21 22 23 24 25

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 7

text_image Technical diagram of a heat exchanger with numbered parts and an inset showing a U-shaped component labeled 28.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 8

text_image TORQUE TO 80 in. 1bs. (92 cm/kg) 40 39 38 37 36 35 34 33 TORQUE TO 80 in. 1bs. (92 cm/kg)

OIL PAN AND LUBRICATION PARTS

Ref.No.PartNo.DescriptionAmt.Req.
1C50093 LOil Pump Assembly1
222652 A-20Screw4
3C50093 MHousing, pump (pressure)1
4C50093 UGerotor, 1/4 inch (6.4mm) thick1
5C50093 TDivider, housing1
6660-684"0" Ring1
7C50093 SSpacer, housing1
8C50093 RGerotor, 1/8 inch (3.2mm) thick1
9C50093 PShaft1
1022784 EScrew1
11C50093 ZPin, dowel1
12C50093 NHousing, pump (suction)1
13660-739Seal, lip1
14C50093 BSCoupling1
1522764Screw, spot1
16C50093 CBBy-Pass, oil filter1
17C50093 CAFilter, oil1
18660-206"0" Ring1
1922541Screw4
20C50093 FCover1
21C50093 GGasket1
2222541 CScrew1
2356322 BGasket1
2422851 AScrew1
25C50093Manifold, flow control1
2622592 BScrew, for Styles XF511H100MF, MG, MAW, 112MF, 112MG and 151MF2
27C50093 ANCooler, oil; for Styles XF511H100MF, MG, MAW, 112MF, 112MG and 151MF1
28C50094 WBy-Pass, tube, oil cooler; all Styles except XF511H100MF, MG, MAW, 112MF, 112MG and 151MF1
29666-294Elbow, male2
30C50093 AJFitting, adaptor2
31C50093 BHGasket2
32C50093 AAPan, oil1
33C50093 AESleeve, stand pipe1
34C50093 AGPlate, filter1
3522569 CScrew12
36C50093 AHScreen, filter1
3722571 EScrew, oil drain plug (magnetic)2
38C50095Screw8
39C50093 ABGasket1
4022881 BScrew2

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 9

text_image TORQUE TO 19-21 in. 1bs. (22-24 cm/kg) 2 3 1 24 25 26 5 4 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Union Sensor 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53

MAIN FRAME BUSHINGS AND PLUGS

Ref.No.PartNo.DescriptionAmt.Req.
1C50093 AYPlug, oil ----3
222894 KScrew ----1
3C50090 KBushing, presser foot lifter lever (right) ----1
4C50055 SBushing, upper mainshaft (right) ----1
5C50055 LBushing, upper mainshaft (center) ----1
6C067 HPlug, cork ----1
7C50054 DShield, needle bar bushing ----1
8666-311Screen, needle bar bushing ----1
922539 GScrew, plug ----1
1050354 DBushing, needle bar (upper) ----1
11C50090 EBushing, presser foot lifter lever (left) ----1
12C50055 KBushing, upper mainshaft (left) ----1
13C50093 CTPlug, oil ----1
1422839Screw ----3
1522587 NScrew ----2
16C50080 BFerrule, locating ----2
1787Screw, all Styles except XF512E100HB-1, MP-12, MP-16,XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-9 ----2
XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-9 ----2
-22570Screw, for Styles XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8,HJ-9, HR-9, 101HR-9 and 112HR-9 ----2
18660-739Seal, oil, presser bar bushing ----1
19661-1"0" Ring, needle bar bushing (lower) ----1
20C50093 AWPlug, oil ----1
21C50093 AXPlug, oil ----1
2250354 EBushing, needle bar (lower) ----1
23C50057 DBushing, presser bar ----1
24C50090 FBushing, presser foot lifter lever (rear) ----1
25C50090 GBushing, presser foot lifter lever (front) ----1
2651-627 BLKPlug ----1
27666-32Felt, oil return ----1
28.50393 DDNeedle Bar Oil Collector Plate Assembly ----1
2950393 CXPlate, oil collector ----1
3022733Screw ----1
3150393 CSSpring, tube retainer ----2
3250393 CVTube, oil return ----1
3350393 CZSpring ----1
34C50082 DCover, feed chamber; all Styles except XF511E101MF,XF511E152MF, XF513E101HR-9, XF513E112HR-9,XF511H112MF, 112MG and 151MF ----1
3522569 GScrew ----10
36C50082 EGasket ----1
37C50036 JBushing, feed rocker shaft (right) ----1
38C50035 ZPlug ----2
39C50051 XPlug, stitch adjustment hole ----1
40C50049 AWindow, stitch indicator (left) ----1
4122521Screw, plug ----1
42C50036 UBushing, feed rocker shaft (left) ----1
43C50035 YBushing ----1
44C50044 FBushing, feed drive shaft (left) ----1
45C50068 AGBushing, rear needle guard shaft (left) ----1
46C50068 XBushing, rear needle guard shaft (right) ----1
47C50044 DBushing, looper rocker shaft ----1
48C50044 GBushing, feed drive shaft (right) and lower mainshaft(left) ----2
49C50035 GBushing, stitch control shaft ----1
50C067 FPlug, cork ----1
51C50093 DBPlug, oil ----1
52C50082 DACover, feed chamber; for Styles XF511E101MF andXF513E101HR-9 ----1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 10

text_image TORQUE TO 28 in. 1bs. (32 cm/kg) 12 11 10 6 7 5 4 3 2 1 13 14 15 16 17 19 18 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 50 51 52 53

P163

SAFETY SHEILD, COVERS AND CLOTH PLATES

Ref.No.PartNo.DescriptionAmt.Req.
122851 DScrew ----4
2C50082 LCover, oil cooler ----1
3C50082 TGasket ----1
421192 RBall, steel ----1
5C50093 ASIndicator, oil flow ----1
6C50093 AUCap, oil filler ----1
7C50082 XGasket ----1
8C50082 UCover, top for single needle machines ----1
-C50082 UACover, top for two and three needle machines ----1
922597 EScrew ---- 1, 2 or 3
1022861 CScrew ----4
11C50082 NGasket ----1
12C50082 MCover, head (right rear) all Styles except puller machines ----1
1322569 MScrew ----9
14C50082 VCover, head (left rear) all Styles except puller machines ----1
15C50082 KGasket ----1
16C50082 AWGasket ----1
1722541 CScrew ----4
1850382 BNCover, head; all Styles except puller machines ----1
19C50082 AAGasket ----1
2022883 BScrew, plug ----1
21660-219 APin, roll ----1
22C50095 GSafety Shield Assembly ----1
23C50095 DStud ----1
24C50095 EBracket, mounting ----1
2597127Washer, spring ----2
2612934 ANut ----2
27RM2879-2Rivet ----2
28C50095 FShield, mounting ----1
29C50001 APlate, cloth (right) ----1
30C50049Window, stitch indicator ----1
3122569 GScrew ----5
3287Screw ----2
33C50032 DPlate, nut ----1
34C50032 BSpring, latch (front cover) ----1
3522585 UScrew, for cloth plates ----1
3622569 BScrew, for cloth plate; Nos. C50001 B, C50001 C, C50001 E, C50001 G and C50001 J ----4
-22569 BScrew, for cloth plate; Nos. 99679 SD and 99679 SC ----2
37C50001 BPlate, cloth (left) for Styles XF511B100MF, XF511H100MF, MG and MAW ----1
-C50001 CPlate, cloth (left) for Styles XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9 and HR-9 ----1
-C50001 EPlate, cloth (left) for Style XF511E101MF ----1
-C50001 GPlate, cloth (left) for Style XF511E118MF ----1
-C50001 JPlate, cloth (left) for Style XF513E101HR-9 ----1
3822517Screw ----8
39C50082 BCover, end ----1
40C50082 CGasket ----1
41C50082 AKGasket ----1
42C50082 AJCover, end (front) ----1
4322526 HScrew ----2
4422569 GScrew ----2
4599679 SCPlate, cloth (left) for Style XF513E112HR-9 ----1
-99679 SDPlate, cloth (left) for Styles XF511E152MF, XF511H112MF, 112MG and 151MF ----1
4650382 BPCover, head (puller machines) ----1
47660-739Seal, lip ----1
48660-896Bushing ----1
4922569 VScrew ----2
5022569 WScrew ----2
51C50090 ACover, pulley assembly ----1
5222569 CScrew ----5
53C50075Cover, blower ----1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 11

text_image TORQUE TO 16-18 in. 1bs. (16-21 cm/kg) TORQUE TO 16-18 in. 1bs. (16-21 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 36 in. 1bs. (41 cm/kg) TORQUE TO 36 in. 1bs. (41 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 IN. 1bs. (32 cm/kg) TORQUE TO 28 IN. 1bs. (32 cm/kg) TORQUE TO 28 IN. 1bs. (32 cm/kg) TORQUE TO 28 IN. 1bs. (32 cm/kg) TORQUE TO 28 IN. 1bs. (32 cm/kg) TORQUE TO 28 IN. 1bs. (32 cm/kg)

P167

NEEDLE DRIVE (CARDAN) AND ASSOCIATED PARTS

Ref.No.PartNo.DescriptionAmt.Req.
1C50055Connection, needle bar1
222653 J-4Screw1
3660-721 ABearing, cage (counterweight marked "A")1
-660-721 CBearing, cage (counterweight marked "C")1
422720 AScrew1
5C50094 XFitting, air1
641350 XWasher, fiber1
7RM3633-1Fitting, swivel1
8671 F-4Fitting, barb1
950393 CFTube, air1
10660-220"0" Ring1
11C50055 CEccentric, for internal tooth gear1
12C50055 WCardan Drive Assembly, for all Styles except XF512E100HB-1, XF513E100HJ-8,HJ-9, HR-9, 101HR-9 and 112HR-91
-C50055 YCardan Drive Assembly, for Styles XF512E100HB-1, XF513E100HJ-8, HJ-9, HR-9,101HR-9 and 112HR-91
13660-206"0" Ring1
1422806 DScrew2
1522597 EScrew1
16C50094 AJTube1
1729480 XAVacuum Assembly1
1841071 GNut, lock1
19671 F-73Valve, needle1
20671 F-4Fitting, barb1
21RM2964 BGasket1
2253193 BSpring1
23671 F-71Tube Assembly1
24671 C-4Connector, male1
25660-762"0" Ring1
26C50067 LHousing, air1
2722894 RScrew1
28660-400Fitting, straight1
29660-989Clamp, tube1
3021237 DGNeedle Cooler, for all Styles except XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and112HR-91
-21237 DPNeedle Cooler, for Styles XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
3121237 DFTube, needle cooler for single needle machines1
-21237 EATube, needle cooler for two needle machines1
-21237 DRTube, needle cooler for three needle machines1
32660-886"0" Ring1
3321237 DUHolder, needle cooler; all Styles except XF513E100HJ-8, HJ-9, HR-9,101HR-9 and 112HR-91
-51-673 BLKHolder, needle cooler; for Styles XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and112HR-91
3422784 NScrew1
35RM2964 BGasket1
36RM3633-1Fitting, swivel1
37660-93Washer1
38671-17Valve, control1
39671 F-4Fitting, barbed1
40RM2964 BGasket1
4122882 DScrew2
42C50043Coupling, upper mainshaft1
4322652 A-8Screw2
4422894 AEScrew, set2
45C50042 MSprocket, upper mainshaft1
4622894 AEScrew4
47C50042 YBelt, upper mainshaft timing1
48C50022 JMainshaft, upper1
49660-713Ring, retaining1
50C50036 PBearing and Collar Assembly1
5122894 ADScrew2
52C50093 AKHousing, mainshaft oil seal1
53660-708"0" Ring1
54660-680Seal, oil1
55C50093 BKShield, oil seal housing1
56C50021 AHandwheel, for all Styles except XF512E100HB-1, XF513E100HJ-8, HJ-9, HR-9,101HR-9 and 112HR-91
-C50021 EHandwheel, for Styles XF512E100HB-1, XF513E100HJ-8, HJ-9, HR-9, 101HR-9and 112HR-91
5722894 CScrew, set2
5822894 EScrew1
5956322 BGasket1
6022730Screw1
6122569 UScrew2

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 12

text_image TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 28 in. 1bs. (32 cm/kg) TORQUE TO 36 in. 1bs. (41 cm/kg)

P166

LOWER MAINSHAFT AND LOOPER DRIVE

Ref. No.Part No.DescriptionAmt. Req.
1141Screw1
2HA20 AWasher1
3C50021 DPulley, for Styles XF511H100MF, MG, MAW, 112MF, 112MG and 151MF1
-C50021 FPulley, for all Styles except XF511H100MF, MG, MAW, 112MF, 112MG and 151MF1
422651 CD-4Screw, set2
5C50021 CSpacer, pulley; for all Styles except XF511H100MF, MG, MAW, 112MF, 112MG and 151MF1
6660-688Seal, mainshaft1
7C50090 BCollar, spacer1
822569 BScrew3
9C50090Housing, mainshaft bearing1
10660-757"0" Ring1
11C50036 PBearing and Collar Assembly1
1222894 ADScrew, set1
1322894 LScrew, spot (required to replace screw in Ref. No. 11)1
14C50090 DPlate, retaining1
1522520Screw3
16C50022 AMainshaft, lower1
17C50042 HSprocket, lower mainshaft1
1822839 AScrew2
19660-719Seal, oil2
20C50042 GSprocket, looper drive1
2198Screw, set2
22C50042 ADBelt, looper drive1
23C50043Coupling, lower mainshaft1
2422894 AEScrew, set2
2522652 A-8Screw2
2622731Screw2
27C50093 BCShaft, connecting1
28C50023 FTake-Up Assembly, looper thread1
2922580 DScrew, set2
30C50023 ECoupling1
31C50023 GDisc, take-up2
32C50077 PSpacer1
3322797 BScrew2
34C50042 FSprocket, looper driven1
3588Screw, set2
36C50057 ABracket, collar1
3722729 BScrew1
3822528Screw1
399846 AScrew1
40C50057 CBlock, pivot1
4122569 GScrew2
42C50014 APlate, eccentric retaining1
43C50014Eccentric, looper avoid adjusting1
44660-207"0" Ring1
45660-443"0" Ring1
4629105 APLooper Drive Assembly1
4722653 J-8Screw1
48667 J-33Crankpin1
4929192 AERocker Assembly, looper1
50660-445"0" Ring1
51C50044 AHousing, looper rocker bearing1
5222569 GScrew3
53C50044 VSeal, oil1
54C50057 BCast-Off Support Plate Assembly1
5522768Screw1
5687 UScrew1
5752904 EBracket, retaining finger support1
5850-216 BLKPin, dowel1
5952804 ESupport, retaining finger1
60C50004Wire, cast-off1
6173 AScrew3
6222516Screw1
6352958 DEyelet2
64C50057Support, cast-off plate1
65303Screw1
6653634 CWasher1
6750358 HEyelet (two and three needle machines)2

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 13

text_image TORQUE TO 36 in. 1bs. (41 cm/kg) TORQUE TO 24-26 in. 1bs. (28-30 cm/kg) TORQUE TO 36 in. 1bs. (41 cm/kg) TORQUE TO 36 in. 1bs. (41 cm/kg) TORQUE TO 24-26 in. 1bs. (28-30 cm/kg) TORQUE TO 24-26 in. 1bs. (28-30 cm/kg)

FEED DRIVING PARTS

Ref.No.PartNo.DescriptionAmt.Req.
156335 DCollar, thrust3
298Screw2
3C50035 KShaft, feed rocker1
4C067 DCork2
5C50035 FRocker, feed1
6C50035 ASpacer2
722738 MScrew2
8660-683"0" Ring1
941391Washer1
10C50035 TShaft, stitch regulator1
1156322 BGasket1
1222891 DScrew1
13C50035 AMLink, stitch control1
1422517Screw1
1522516 AScrew1
16C50036Pin, link1
17C50035 BLink, feed drive (intermediate)1
18C50035 ARLink, intermittent1
1922516 BScrew1
20C50034 DSpacer, feed bar1
2122570 AScrew1
22C50034 XFeed Bar1
23C50034 ZEccentric1
2422517Screw2
25C50047 GCounterweight1
2695Screw, set1
2796 AScrew, spot1
28C50036 CPin, link1
29C50045 BLink, connecting2
3022845 RScrew1
3122839 GScrew1
32C50036 MBlock, feed lift guide1
33C50036 FPin, feed lift adjusting1
34C50036 EBushing, feed lift adjusting1
3522894 KScrew1
36660-677"0" Ring1
3722519 MScrew1
38HA20 AWasher1
39C50036 DDial, feed lift adjusting1
40C50036 GLink, intermittent (feed lift control)1
4122516 BScrew1
42C50043 H-025Washer, .025 inch (.635mm) thick1
-C50043 H-021Washer, .021 inch (.533mm) thick1
-C50043 H-029Washer, .029 inch (.737mm) thick1
43C50036 ALink, feed lift1
44C50036 BPin, link1
4522804Screw2
46C50034 NBracket, feed bar thrust1
47187 AScrew2
48C50034 LScraper, oil, feed bar (rear)1
49C50034 HGuide, feed bar (left)1
50C50034 MGuide, feed bar (right)1
51C50034 FHolder, feed bar guide1
52C50034 KScraper, oil, feed bar (front)1
53C50034 AGSeal, retainer2
54C50034 AKSeal, oil, feed bar1
55C50034 GSpring, oil seal1
56C50034 JPlate, feed bar oil seal1
5722594Screw4
5822868 CScrew2
59C50034 AHHolder, feed dog1
6022637 P-24Screw1
61C50034 VCam, feed dog tilting1
62605 AScrew1
63-- -Feed Dog, See "SEWING COMBINATIONS"1
6422519 HScrew1
65C50022 GShaft, feed drive1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 14

text_image STYLE XF511B100MF STYLE XF511B100MF P 170

STITCH REGULATING PARTS

Ref.No.PartNo.DescriptionAmt.Req.
122778 AScrew1
2C50051 XPlug, stitch adjustment hole1
322596 HScrew1
453634 CWasher1
5C50035 ASWasher1
6C50035 AABracket, mounting1
761434 GWasher1
89937Nut1
9C50035 ABBlock, support1
1022729 AAScrew2
119846Screw (required to replace screw in Ref. No. 28)1
12C50093 CHCap, tube for screw 9846 approx. 1/2 inch (12.7mm)1
13C50035 ALShaft w/knob, stitch adjusting1
1422541 AScrew2
15C50035 APBracket, stitch control support1
1639198 DWasher1
17C50035 RRetainer, stitch length2
18C50035 VBlock, limit, stitch regulator2
19C50035 SScrew, stitch regulating2
20C50035 HNut, stitch limiting2
21C50035 ANBracket, guide, stitch control1
2222652 B-10Screw1
2322570 AScrew2
2422652 B-12Screw1
25C50035 AJPin, roll, for stitch adjusting shaft1
26660-884Spring, stitch adjusting1
27660-683"0" Ring for feed rocker shaft bushing (right)1
28C50035Collar, actuating1
2988 BScrew, set1
30C50035 PBlock, stitch regulating1
31C50035 WLever, stitch control1
32C50035 BCLink, stitch regulating1
33C50037 AFerrule2
3488 DScrew1
3514077Nut1
3641071 GNut1
37C50035 XIndicator, stitch1
3822894 WScrew2
3987Screw1
40C50035 NSpring1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 15

text_image Technical diagram of a mechanical assembly with numbered components for identification

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 16

text_image Technical diagram of mechanical assembly with numbered components and labeled parts

P169

REAR NEEDLE GUARD AND PNEUMATIC STITCH SHORTENING

Ref.No.PartNo.DescriptionAmt.Req.
122758 KScrew1
2C50068 ULink Assembly, crank, rear needle guard1
322541 DScrew2
4C50068 YPlate, retaining1
5C50068 ZSpacer2
6C50068 CPin, pivoting1
7C50068 BLink, pivot, rear needle guard1
898 AScrew1
922729 LScrew1
10C50068 AShaft, rear needle guard1
11C50025 AHolder, needle guard; all Styles exceptXF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9,HR-9, 101HR-9 and 112HR-91
-C50025 FHolder, needle guard; for Styles XF512E100HB-1,MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9and 112HR-91
1222764Screw, spot1
1322562 AScrew1
14---Needle Guard, See "SEWING COMBINATIONS"1
1522652 A-6Screw2
16C50035 AWArm, connecting1
17C50035 AZCollar, adaptor1
1822552 A-16Screw1
19C50035 AYAdjuster, clevis1
2021756 GScrew, adjusting1
2122743Screw1
2289-64Plug, pressure1
2322789 AScrew, pivot1
24RM3211-1Nut, lock1
25C50035 BABracket, mounting1
2622640 R-40Bolt, mounting1
2722758 EScrew2
28C50035 AXBracket, hinge1
29671 A-65Cylinder, air1
30671 F-69Fitting, air1
31RM2997 DTubing, air; 1/4 inch (6.35mm) O.D.specifylength as req.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 17

text_image TORQUE TO 19-21 in. 1bs. (22-24 cm/kg) 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 19 27 26 25 24 23 22 21 20 13 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

P171

PRESSER FOOT AND LIFTER LEVER PARTS

Ref.No.PartNo.DescriptionAmt.Req.
1C50056 DRegulator, presser bar spring1
2C50056 BGuide, presser bar spring1
3C50056 CSpring, presser bar; for all Styles except XF512E100HB-1,XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
-C50056 LSpring, presser bar; for Styles XF512E100HB-1,XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
4C50056 KGuide, presser bar1
522840 CScrew, adjusting1
6C50056 JNut, lock1
7531Screw2
8C50067 KPlate, presser bar guide1
922569 CScrew2
10C50057 EBar, presser; for all Styles exceptXF513E100HJ-8, HJ-9, HR-9, 101HR-9, 112HR-91
11C50057 KBar, presser; for Styles XF513E100HJ-8, HJ-9,HR-9, 101HR-9 and 112HR-91
12---Presser Foot Assembly, See "SEWING COMBINATIONS"1
1322758Screw5
14660-718Washer, spring3
15C50067 FLink, presser foot lift1
16C50067 GLever, presser foot lift (upper left)1
1722596 HScrew1
1851854 CWasher1
19C50022 CShaft, presser foot lift (upper) for all Stylesexcept XF511E101MF, 118MF, 152MF and XF513E101HR-91
-C50076 CShaft, presser foot lift (upper) for StylesXF511E101MF, 118MF, 152MF and XF513E101HR-91
20C50090 NSpring, tension release return1
21C50090 MCollar, tension release adjusting1
2222894 PScrew2
23C50090 JSleeve, tension release; for all Styles exceptXF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9,101HR-9 and 112HR-91
-C50090 JSleeve, tension release; for Styles XF512E100HB-1, MP-12,MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-92
2422894 WScrew, for all Styles except XF512E100HB-1, MP-12,MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-92
-22894 WScrew, for Styles XF512E100HB-1, MP-12, MP-16,XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-94
25C50067 BLever, presser foot lifter (upper right)1
2622519 KScrew1
27C50067Connection, presser foot lift1
28C50067 DLever, presser foot lift (lower)1
2922882Screw2
30C50067 ALever, presser foot lift (outer)1
31627 AScrew1
3215037 ANut, locking1
3322894 CScrew2
34667 M-14Pin, dowel (lifter lever stop)1
35C50022 DShaft, presser foot lift (lower)1
36C50036 RCollar, thrust1
3722894 LScrew, spot1
38C50077 ELever, lifter1
3993Screw1
40C50077 FLink, connecting1
41C50077 ADSpacer, for C50077 G1
42C50077 GLever, lifter (roller)1
4322557 JScrew, shoulder1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 18

text_image Exploded view diagram of a UnionSpecal industrial machine (UNI/XF-500) with numbered components and exploded views.

FRONT COVER AND THREAD HANDLING PARTS

Ref.No.PartNo.DescriptionAmt.Req.
150378 RWire, thread separating; for two and three needle machines1
2C50058 FWire, rubbing (needle thread)1
350370Cam, needle thread; for single needle machines1
3A50358 JCam, needle thread take-up; for StylesXF512E100HB-1, MP-12 and MP-161
3BC50070 BCam, needle thread take-up; for StylesXF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
422569 CScrew3
550370 AWire, strike-off (needle thread)1
6C50054 MGuard, needle bar eyelet1
7531Screw1
822569 CScrew2
929476 PXThread Control Assembly, for all Styles exceptXF512E100HB-1, MP-12 and MP-161
-29476 PYThread Control Assembly, for Styles XF512E100HB-1,MP-12 and MP-161
1098 AScrew1
-22726 LScrew for 50358 K1
11158 AEyelet, adjustable1
11A50358 KEyelet, adjustable; for 29476 PY1
1222837Screw1
1356358 CWasher, guide1
1456358 DSpacer1
1556358 BBlock, guide1
1650304 DPlate, needle thread control1
1757 WDScrew1, 2 or 3
1857 WCSpring1, 2 or 3
1957 WBPlate, needle thread nipper1, 2 or 3
2063471Base, needle thread nipper1, 2 or 3
2118-1077Screw, for 634711, 2 or 3
22109Disc, tension4, 8 or 12
2356392 FShield, tension spring2, 4 or 6
24C50092 MWasher, tension release1, 2 or 3
2551292 F-8Spring, needle thread tension1, 2 or 3
2639592 AKFerrule, tension spring2, 4 or 6
27C50092 SNut, thread tension2, 4 or 6
28C50092 LPost, tension (needle thread)1, 2 or 3
29C50092 JPin, thread tension release1, 2 or 3
3051292 AFerrule, tension post2 or 3
31C50092 RWasher1, 2 or 3
3250392 BHousing, tension assembly1, 2 or 3
33C50092 GPin, tension release actuating1, 2 or 3
3418-799Screw1, 2 or 3
3551292 F-2Spring, looper thread tension1, 2 or 3
3656392 EPost, tension (looper thread)1, 2 or 3
3722501 AScrew4
38 thru 70See Following Page

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 19

text_image Exploded view diagram of a Union Special air conditioner unit with numbered components and exploded views

FRONT COVER AND THREAD HANDLING PARTS

Ref.No.PartNo.DescriptionAmt.Req.
1 thru 37See Preceding Page
38C50092 NGuide, thread1
39C50082 AHPlug, top cover; for Styles XF512E100HB-1, MP-12 and MP-161
4022635 G-16Screw2
41C50058 AEyelet, looper thread1
4239868 HEyelet, looper thread; for all Styles except XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
42A52958 GEyelet, looper thread; for Styles XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
4322872Screw, for all Styles except XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
4451292 DEyelet, looper thread1, 2 or 3
4551959 DNut1
4615438 CSpring1
4757 WBPlate, spring1
48C50092 UPost, nipper base1
4922716 AScrew2
50C50044 TPlate, mounting thread guide1
51605 AScrew2
5256958Eyelet, looper thread1
5322520Screw1
5422569 JScrew1
55C50093 BRBumper, rubber2
56C50082 WStop, adjustable2
5722799 AHStud, latch spring1
5822513Screw2
59C50032Spring, latch1
60C50082 YCover, front; for all Styles except XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
-C50082 ZCover, front; for Styles XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
61C50078 CHinge, front1
6222792 AScrew4
63660-731Bumper, rubber2
64C50001 DExtension, cloth plate1
6525 EScrew2
6624Guide, edge; for all Styles except XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-91
6725Screw, for all Styles except XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-92
68C50032 CScrew, cover latch1
6951192 BFerrule, tension post; for Styles XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9, HR-9, 101HR-9 and 112HR-92 or 3
7022585 AScrew1
7122569 DScrew4

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 20

text_image Exploded view diagram of a mechanical assembly with numbered parts for identification

PULLER DRIVE

Ref.No.PartNo.DescriptionAmt.Req.
1C50078 LGear, internal1
2660-889Bearing, cage1
3C50078 MGear1
4C50078 JBlock, slide1
522593Screw1
6C50078 NRing, guide1
7C50078 GHousing, bearing1
822894 JScrew1
9C50022 LShaft, eccentric drive1
10C50042 AC-16Sprocket1
1198Screw2
12660-891 CRing, retaining1
13660-888Bearing, ball1
1459451 FWasher1
1522574 DScrew (left hand threads)1
16660-914Spring, finger1
17660-886 A"0" Ring1
18C50082 ARCover1
1922524Screw3
20661-70 ARing, snap1
21C50078 PHousing, eccentric1
22660-892 CBearing1
23660-886 C"0" Ring1
24C50042 AFBelt, timing1
25C50042 AB-16Sprocket1
2698Screw4
27671 F-41Tee, union1
28C50094 AFTube, oil1
29671 F-19Connector1
30RM3633-1Fitting, oil1
31671 F-64Fitting, extension1
32RM2964 BWasher1
3322824 BScrew1
3453634 CWasher1
35C50093 CSProtector, tube1
36660-891 BRing, snap1
37660-886 B"0" Ring1
38C50078 HHousing, bearing1
39136Screw2
40660-890Bearing, ball1
41660-918Ring, retaining1
4222825Screw3
4321375 BXGuard, belt1
44C50042 AGBelt, drive1
4521375 BYCover1
46604Screw4
47C50042 Z-13Sprocket, puller driving (See sprocket chart for stitch length combinations)1
4822560 BScrew2
49C50082 APCover1
50660-893Seal, lip1
51660-886 A"0" Ring1
52660-914Spring, finger1
5322524Screw3
54670 E-2Tie, cable; to secure Ref. No. 281

NOTE: Ref. No. 1-24, 36-41 and 49-53 can be ordered under Assembly No. 29476 PK.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 21

text_image Technical diagram of a mechanical assembly with numbered components and exploded view

P185

BELT PULLER

Ref.No.PartNo.DescriptionAmt.Req.
1C50078 AEBracket, mounting1
2667 C-8Pin, dowel1
351-716 BLKPin, locating1
4C50077 DScrew, adjusting1
588 FScrew2
68372 AWasher2
7C50077 CSleeve, stop1
8C50077 BStud, screw1
9660-220"O" Ring1
10C50077 MWasher2
11C50077 JWasher1
12C50078 ACPlate, binder1
13660-892 ABearing, needle2
1451242 LWasher1
1528633 LSpring1
16C50077 HCollar, lifting1
1722894 AMScrew1
18C50078 YRod, lifter1
19C50036 RCollar, stop1
2098Screw, set (required to replace screw in Ref. No. 19)1
21660-887Bearing, ball1
22C50078 ABShaft, drive1
23C50042 AKBelt, material puller1
24C50078 WYoke, roller1
25136Screw1
2622570 EScrew1
27C50078 AALifter1
2822894 RScrew1
29C50042 Z-16Sprocket, puller driven (see sprocket chart for stitch length combinations)1
3022560 BScrew2
31660-892 BBearing1
32C50078 XShaft, eccentric1
33C50077 NWasher3
34C50037 DFerrule2
35C50042 AJ-12Sprocket2
36C50063 YWasher2
3718Nut2
3852930 ACKnife, chain cutting1
39604Screw1

Ref No. 1 thru 39 can be ordered under Assembly No. 29476 PL.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 22

text_image Technical diagram of a mechanical assembly with numbered components for identification and assembly reference.

ROLLER PULLER

Ref. No.Part No.DescriptionAmt. Req.
1C50078 FBracket, mounting1
2667 C-8Pin, dowel1
351-716 BLKPin, locating1
4C50077 DScrew, adjusting1
588 FScrew2
68372 AWasher2
7C50077 CSleeve, stop1
8C50077 BStud, screw1
9660-220"0" Ring1
10C50077 JWasher2
11C50078 SBlock, mounting1
12660-892 ABearing, needle2
1394Screw4
14C50078 VGuard, feed roller1
1594Screw2
1621375 BWGuard, belt1
17C50042 Z-18Sprocket, puller driven (see sprocket chart for stitch length combinations)1
1822560 BScrew2
19660-887Bearing, ball1
20C50042 AEBelt, timing1
21C50022 KShaft, drive1
22C50078 EYoke, feed roller1
2322894 EScrew2
24136Screw1
25660-892 BBearing, needle1
2651242 LWasher1
2728633 LSpring1
28C50077 HCollar, puller lifting1
2922894 AMScrew1
30C50078 TBlock, thrust1
3139656 AKnife, chain cutting1
32604Screw1
33C50077 KWasher2
34C50022 NShaft, upper roller1
35C50042 ALSprocket, drive1
36660-892 ABearing, needle2
37660-219 LPin, roll1
38C50075 BRoller, upper (Smooth Polyurethane)1
39C50077Shaft, puller lifter1
40660-416Ring, retaining2
41C50036 AJPin, roller lifter1
42C50036 RCollar, stop1
4398Screw, set (required to replace screw in Ref. No. 42)1

Ref. Nos. 1 thru 43 to be ordered under Assembly No. 29476 PH with Smooth Polyurethane Roller and 29476 PW with Bakelite Saw Tooth Roller.

44AS22 DScrew1
45C50078 RPlate, feed1
4622526Screw4
47C50078 UBlock, bearing2
4822894 WScrew2
49C50074Shaft1
50660-330Ring, retaining2
516042 AWasher3
52C50076Roller, lower (Smooth Polyurethane)1
-50375 CRoller, lower (Steel Diamond Knurled)1
-50375 DRoller, lower (Bakelite Saw Tooth)1
53C50078 AF-15Shimas req.
-C50078 AF-10Shimas req.

Ref Nos. 44 thru 52 can be ordered under Assembly No. 29476 PJ with Smooth Polyurethane Roller and 29476 PV with Bakelite Saw Tooth Roller.

-50375 ARoller, upper (Steel Diamond Knurled)1
-50375 BRoller, upper (Bakelite Saw Tooth)1
-50375Roller, upper (Steel Saw Tooth)1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 23

text_image TORQUE TO 14-16 in. 1bs. (16-18 cm/kg) 5 2 3 4 25 24 20 21 22 23 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 50 51 52 53 54 55 56 57 58 59 60

SEWING COMBINATIONS

Ref.No.PartNo.DescriptionAmt.Req.
1C50058 HEyelet, needle bar; for single needle machines1
218-71Screw1
3C50058 KEyelet, needle bar; for two and three needle machines1
418-71Screw1
5C50017 CBar, needle; for single and two needle machines1
6C50018 DHead, needle; for single needle machines1
722768 AScrew1
8C50018 L-12Head, needle; for Style XF512E100MP-121
-C50018 L-16Head, needle; for Style XF512E100MP-161
988 BScrew2
1050318 CHead, needle; for Style XF512E100HB-11
1122743Screw, needle2
1250358 GGuide, thread1
1373 AScrew2
1435818 N-8Head, needle; for Style XF513E100HJ-81
-C50018 B-9Head, needle; for Styles XF513E100HJ-9, HR-9, 101HR-9, and 112HR-91
1522752Screw, for center needle1
1622580Screw, needle2
1789Screw, spot1
18C50017 ABar, needle; for three needle machines1
1950 J-26Pin, stop1
20C50025Guard, needle; for single needle machines1
21C50025 NGuard, needle; for Styles XF512E100MP-12 and MP-161
22C50025 EGuard, needle; for three needle machines1
2350325 KGuard, needle; for Style XF512E100HB-11
2421210Collar, looper1
2550390 DLooper, for single needle machines1
2651408-12Looper, front; for Style XF512E100MP-121
2751408-16Looper, front; for Style XF512E100MP-161
2851409Looper, back; for Styles XF512E100MP-12 and MP-161
2951908 B-9Looper, front; for Styles XF513E100HJ-9, HR-9, 101HR-9 and 112HR-91
-51908 B-8Looper, front; for Style XF513E100HJ-81
3051909 CLooper, middle; for all three needle machines1
3151909 D-9Looper, back; for Styles XF513E100HJ-9, HR-9, 101HR-9 and 112HR-91
-51909 D-8Looper, back; for Style XF513E100HJ-81
3251509 CLooper, back; for Style XF512E100HB-11
3351508 G-1Looper, front; for Style XF512E100HB-11
34C50013Holder, looper; for single needle machines1
3522565 XScrew, set1, 2 or 3
3622785Screw, adjusting1
3722562 B-10Screw, binder1
38C50013 AHolder, looper; for Styles XF512E100MP-12 and MP-161
-C50013 DHolder, looper; for Style XF512E100HB-11
39C50041 GStop, for two and three needle machines1
40C50041 FSpring, plunger1
4122881 CScrew, for C50041 G (two and three needle machines)1
42C50041 HCollar, stop; for two and three needle machines1
4322652 J-10Screw1
4453634 CWasher, looper carrier; for two and three needle machines1
45C50041 ELock, looper carrier; for two and three needle machines1
46C50041 DLever, release; for two and three needle machines1
47538 AScrew1
48C50013 BHolder, looper; for three needle machines1
4923425 VPlate, washer1
5025 CScrew2
5128Screw1
5223421 U-12-1/16Scroll, upper for Style XF512E100MP-121
-23421 U-16-1/16Scroll, upper for Style XF512E100MP-161
-23421 U-16-3/32Scroll, upper for Style XF513E100HJ-81
-23421 U-18-3/32Scroll, upper for Style XF513E100HJ-91
5323422 U-1/16Lower Scroll and Base for Styles XF512E100MP-12 and MP-161
-23422 BZ-3/32Lower Scroll and Base for Styles XF513E100HJ-8 and HJ-91
5423420 S-9-1/8Folder Assembly for Styles XF513E100HR-9, 101HR-9 and 112HR-91
5528Screw1
5623421 S-9-1/8Scroll, upper1
5723422 AY-18-1/8Scroll, lower1
5822760 AScrew2
5923424 SSpring1
6023423 SBase1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 24

text_image Technical diagram of a mechanical assembly with numbered parts, likely for assembly or manufacturing purposes.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 25

text_image 41 42 43

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 26

text_image Technical diagram of a mechanical assembly with numbered parts, likely an electrical or mechanical component.

SEWING COMBINATIONS

Ref.No.PartNo.DescriptionAmt.Req.
1C50020Presser Foot Assembly, for Styles XF511B100MF, XF511E101MF, 118MF, 152MF, XF511H100MF, 112MF, 100MG, 112MG and 151MF1
2604Screw1
352930 ACKnife, chain cutter1
422562Screw1
5C50030Shank, presser foot1
622784 MScrew2
7C50031Guard, finger1
8C50030 ABottom, presser foot1
9C50030 DSpring2
10C50030 BSection, yielding1
11C50030 CSpring2
1222799 BScrew, hinge1
1350324Throat Plate, for Styles XF511B100MF, XF511E101MF, 118MF and XF511H100MF1
-C50024 BThroat Plate, for Styles XF511E152MF, XF511H112MF and 151MF1
14C50005 FFeed Dog, for Styles XF511B100MF, XF511E101MF, 118MF, 152MF, XF511H100MF, 112MF and 152MF1
15C50024 DThroat Plate, for Style XF511H100MG1
-C50024 EThroat Plate, for Style XF511H112MG1
16C50005 GFeed Dog, for Styles XF511H100MG and 112MG1
1756320 EPresser Foot Assembly, for Style XF511H100MAW1
18604Screw1
1952930 ACKnife, chain cutting1
2051430 FNut1
2156330 AUWasher1
2241071 GNut1
2356330 ADSpring1
2456330 AHNut, pressure regulating1
2556330 AKYoke1
2622785Screw1
2722560 BScrew1
2888Screw1
2956330 AVLink, presser foot1
3056330 APBushing1
3156330 AWBottom, presser foot1
3222799 GScrew1
3373 AScrew1
3456330 AXSpring, tilting1
3556330 AJPin, hinge1
3656330 AGScrew, connection1
3756330 AFScrew, hinge1
38C56324 CThroat Plate, for Style XF511H100MAW1
3956305 CFeed Dog, for Style XF511H100MAW1
40C50080 ASupport, throat plate; for Styles XF511E101MF, 118MF, XF511H100MF, MG and MAW1
-C50080 AASupport, throat plate; for Styles XF511E152MF, XF511H112MF, 112MG and 151MF1
-C50080 ABSupport, throat plate; for Style XF511B100MF1
41C50080Support, throat plate; for Styles XF512E100HB-1, MP-12, MP-16, XF513E100HJ-8, HJ-9 and HR-91
-C50080 CSupport, throat plate; for Styles XF513E101HR-9 and 112HR-91
4251280 KPin, dowel2
4322570Screw2
4456520Presser Foot Assembly, for Style XF512E100HB-11
4551530 DShank, presser foot1
4691Screw1
4751530 GSpring1
481740Pin1
4951530 FPlunger1
5056530 ASection, yielding1
5156530Bottom, presser foot1
5222799 EScrew, hinge1
5352930 ACKnife, chain cutting1
5491 AScrew1
5556524 B-1Throat Plate, for Style XF512E100HB-11
5656505Feed Dog, for Style XF512E100HB-11

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 27

text_image Technical diagram of a mechanical assembly with numbered parts, likely an electrical or mechanical component.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 28

text_image Technical diagram of mechanical assembly with numbered parts, showing exploded and assembled views of components

SEWING COMBINATIONS

Ref.No.PartNo.DescriptionAmt.Req.
151405 A-10Feed Dog, for Style XF512E100MP-121
251424 A-12Throat Plate, for Style XF512E100MP-121
351420-12Presser Foot Assembly, for Style XF512E100MP-121
451430 DPresser Foot Shank1
591Screw1
622799 BScrew, hinge1
751430 A-12Presser Foot Bottom1
822840 AScrew, adjusting1
951430 FNut, adjusting1
1051405-16Feed Dog, for Style XF512E100MP-161
11C51424-16Throat Plate, for Style XF512E100MP-161
1251420-16Presser Foot Assembly for Style XF512E100MP-161
1351430 DPresser Foot Shank1
1491Screw1
1522799 BScrew, hinge1
1651430 A-16Presser Foot Bottom1
1722840 AScrew, adjusting1
1851430 FNut, adjusting1
1956920 R-9Presser Foot Assembly, for Styles XF513E100HR-9, 101HR-9 and 112HR-91
2035830 BPresser Foot Shank1
2191 DScrew1
2273 AScrew1
2335830 HSpring1
2422845 AScrew6
2556930 BPresser Foot Bottom (rear section)1
2622599Screw1
2735830 KSpring1
2835830 CYoke1
2935830 R-9Presser Foot Bottom (front section)1
30C56924 R-9Throat Plate, for Styles XF513E100HR-9 and 101HR-91
-C50024 Y-9Throat Plate, for Style XF513E112HR-91
3156905 R-9Feed Dog, for Styles XF513E100HR-9, 101HR-9 and 112HR-91
3250320 M-8Presser Foot Assembly, for Style XF513E100HJ-81
-56920 A-9Presser Foot Assembly, for Style XF513E100HJ-91
3335830 BPresser Foot Shank1
3491 DScrew1
3573 AScrew1
3635830 HSpring1
3722845 AScrew6
3850330 BF-8Presser Foot Bottom (rear section) for Style XF513E100HJ-81
-56930Presser Foot Bottom (rear section) for Style XF513E100HJ-91
3922599Screw1
4035830 KSpring1
4135830 CYoke1
4235830 R-8Presser Foot Bottom (front section) for Style XF513E100HJ-81
-35830 R-9Presser Foot Bottom (front section) for Style XF513E100HJ-91
4350324 N-8Throat Plate, for Style XF513E100HJ-81
-C56924 A-9Throat Plate, for Style XF513E100HJ-91
4456905 A-9Feed Dog, for Styles XF513E100HJ-8 and XF513E100HJ-91

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 29

text_image Technical diagram of a mechanical assembly with numbered components for identification and assembly reference.

POWER "AIR-KLIPP" CHAIN CUTTER AND RELATED PARTS
(Styles XF511H112MF, 112MG, 151MF, XF511E152MF and XF513E112HR-9)

Ref.No.PartNo.DescriptionAmt.Req.
199679 SGCover, suction tube; for all Styles exceptXF513E112HR-91
*-99679 SHCover, suction tube; for Style XF513E112HR-91
299312 AScrew4
399670 SHKnife, upper1
477 KScrew2
5357Screw1
699697 SASpring, knife1
799672 SBPin, coupling1
893Screw4
922560Screw1
1099672 SARod, knife drive1
1199691 SAHousing1
1299671 SAHolder, knife1
1399346 TScrew2
1499669 KKnife, lower1
1599679 SAPlate, cloth (rear) for all Styles except XF513E112HR-91
*-99679 SBPlate, cloth (rear) for Style XF513E112HR-91
1628 BScrew4
1722569 GScrew2
1822572 AScrew9
1922768Screw, inlet; for all Styles except XF513E112HR-91
*-22716Screw, inlet; for Style XF513E112HR-92
2099677 SAInlet for all Styles except XF513E112HR-91
*-99677 SCInlet, (right) for Style XF513E112HR-91
*-99677 SBInlet, (left) for Style XF513E112HR-91
2199679 SFPlate, cover for all Styles except XF513E112HR-91
*-99679 SEPlate, cover for Style XF513E112HR-91
22C50082 EGasket1
23660-763Muffler1
24671 F-66Connector, female1
25RM2997 DTubing, plastic; 5 feet (approx. 1.5m) required-
26671 H-2Air-Motor Assembly1
27660-400Fitting, straight compression, 5/16 inch O.D.2
28671 H-1EScrew, plug1
29671 H-2AHousing1
30671 H-2BFlange, guide1
31999-166Gasket, washer1
32999-140 BMuffler1
3322585Screw2
3422894 CScrew, set for 671 H-21
35671 H-1GInsert, plastic (coupling pin)1
36660-207"O" Ring1
3741071 GNut, lock1
38671 H-2DCoupling, rod end1
39671 H-1DScrew, plug1
40671 H-1FWasher, stop1
41660-753Spring1
42671 H-1APiston, drive1
43671 H-1HWasher, shock absorbing2
44671 H-2CRod, piston1
671 C-18Nut & sleeve for 5/16 inch O.D. fittings (shown with fittings) as req.
V29944 APower "AIR-KLIPP" Assembly includes Ref. Nos. 1 through 16.
*V29944 BPower "AIR-KLIPP" Assembly includes Ref. Nos. 1 through 16 including components for XF513E112HR-9.

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 30

text_image 5 4 2 3 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 TO TREADLE VALVE FOR OPTIONAL ACCESSORIES TO TREADLE COOLER

PNEUMATIC CONTROLS

Ref.No.PartNo.Description*Amt.Req.**Amt.Req.
129480 ACB* Pneumatic Control Board Assembly for all "AIR-KLIPP" Styles1-
-29480 ACW** Pneumatic Control Board Assembly for all Styles without "AIR-KLIPP"-1
2661-3Clamp, mounting22
322650 CF-6Screw, set22
4652 B-16Washer, lock22
522635 D-6Screw22
635032 RBracket, mounting11
711635 BNut42
8652 B-20Washer, lock42
9671 D-5Filter11
10RM3320-1Reducer11
11RM2850 DTee, pipe22
1222571 FScrew, plug11
13RM3287-2Nipple, hex11
14671 C-16Stud, mounting42
15671 D-9Regulator42
16671 F-69Fitting, swivel; 90 degree75
17671 D-15Gauge42
18RM4098-1Valve, pilot11
19660-403Muffler11
20RM2881-1Elbow, 90 degree1-
21671 F-94Tee, run1-
2250394 ABTube, air; 1/4 inch (6.35mm)1-
23671 F-96Tee, tube1-
24660-392Tube, air; 1/4 inch (6.35mm)31
25671 F-3Fitting, tube; 3/8 inch (9.52mm)1-
26671 B-11Tube, discharge; for "AIR-KLIPP" Styles1
27671 D-2Venturi, for "AIR-KLIPP" Styles1
28671 B-3Tube, venturi; air supply for "AIR-KLIPP" Styles1
29998-332Holder, venturi; for "AIR-KLIPP" Styles1
30RM2719-1Screw, wood; for "AIR-KLIPP" Styles2
31671 B-12Tube, suction; for "AIR-KLIPP" Styles1
32RM2871 BTie4
33RM3832-1Wrap, harness1
3429480 ACDTreadle Valve Assembly1
35999-146Link2
3695250Nut2
3795250Nut3
3899563 A-75Rod, pitman1
39C50036 ASCollar, actuating2
4022894 RScrew2
41671-135Bracket, mounting1
4222571 FScrew, plug; used without optional accessories1
43671 F-69Fitting, swivel; 90 degree2
44SC191Screw3
45671-134Body, valve1
4699563 A-130Rod, pitman2
47G28562 AConnector, rod (Pitman)1
4895051Screw1

Union Special XF512E100MP - STITCH SHORTENING DEVICE - 31

text_image Exploded view diagram of a mechanical assembly with numbered components for identification

THREAD STAND AND ACCESSORIES

Ref.No.PartNo.DescriptionAmt.Req.
129480 ADLKnee Press Assembly1
*250364 HBracket, mounting1
3667 C-16Pin, dowel1
4AS-7-2Base, knee press1
5RM3263-5Washer2
622653 B-12Screw2
7671 F-69Fitting, swivel; 90 degree2
8671-85Valve, three way1
9RM2805-1Screw2
10AS-7-1Rod, knee press1
11AS-7-3Press, knee1
1269 FDScrew1
13660-168Pad, knee press1
1421101 W-2Thread Stand Assembly for single needle machines1
-21101 W-4Thread Stand Assembly for two needle machines1
-21101 W-6Thread Stand Assembly for three needle machines1
1521374 RShaft, presser foot treadle1
1621374 NBracket, treadle shaft mounting3
17RM3162-2Screw6
18652-16Washer6
19RM2791-3Nut6
2021374 PTreadle, presser foot1
2122651 CD-4Screw2
2221205 BWrench, stitch length adjusting1
2321207 BScrewdriver1
24660-240Tweizer, thread1
2521205 CWrench, stitch length adjusting for puller machines1
2621374 CCradle Assembly, machine1
2722604Screw2
28RM3293-3Washer30
29C50095 CRetainer, isolator1
30C50095Screw, mounting1
31651 B-16Nut1
32651 B-24Nut4
3311698 LNut19
3422604Screw2
3522640 M-96Screw3
3622638 CScrew, flat head4
37SC170Screw, flat head4
3821374 DBracket, frame mounting4
3921371 LRNut, cap4
4021374 USpacer, table board4
4128561 MRod Assembly, pitman1
4222508Screw4
4328562 AConnection, pitman2
441453 RRod, pitman2
4521374 TJoint, connecting2
46C50095 CRetainer, isolator6
4751295 AIsolator7
28604 SContainer of oil, 32 ounces (946ml.) spec 175, (not shown)1

*Mounting Bracket for Knee Press Assembly is applicable for use with right or left knee.

GENERAL PREVENTIVE MAINTENANCE SCHEDULE

XF500 TASKDAILYAFTER FIRST MONTHEVERY MONTHEVERY -3-MONTHSEVERY -6-MONTHSYEARLY
Check oil level (sight gauge) oil level between red lines.XF500
Check pump operation (oil flow indicator-top of arm).XF500
Clean lint & dirt from machine.XF500
Check that all guards and shields are in place and being used.XF500
Change oil-filter.XF500XF500
Change oil (oil which conforms to U.S.C. spec. 175 must be used).XF500XF500
Check tension on internal timing belts.XF500XF500
Inspect clutch/ positioner motor V-belt tension and wear.XF500
Check clutch motor clutch/brake.XF500
Clean lint from oil cooler.XF500XF500
Clean lint from clutch/positioner motor air passages.XF500XF500
Check needle/s bent, blunt, sharp or worn eye or groove.XF500

NOTE: SCHEDULING IS BASED ON NORMAL WORKING CONDITIONS. FREQUENCY OF TASKS DEPENDS ON MACHINE DUTY CYCLE TIME AND PERSONNEL RESPONSIBLE TO PERFORM TASK DETERMINED BY PLANT MANAGEMENT.

NUMERICAL INDEX OF PARTS

Part No.Page No.Part No.Page No.Part No.Page No.
AS-7-17113655,57,59660-75741
AS-7-27114141660-76239
AS-7-371158 A51660-76367
1857SC17071660-85531
18-7161187 A43660-88445
18-79951SC19169660-88531
18-10775130341660-88639
HA20 A41,4335767660-886 A55
AS22 D5953149,51660-886 B55
2453538 A61660-886 C55
255360455,57,59,660-88757,59
25 C6163660-88855
25 E53605 A43,53660-88955
2861627 A49660-89055
28 B67651 B-1671660-891 B55
RI-3731651 B-2471660-891 C55
50 J-2661652-1671660-892 A57,59
50-216 BLK41652 B-1669660-892 B57,59
51-627 BLK35652 B-2069660-892 C55
51-673 BLK39660-9339660-89355
51-716 BLK57,59660-16871660-89637
57 WB51,53660-20633,39660-91455
57 WC51660-20741,67660-91855
57 WD51660-219 A37660-98939
C067 D43660-219 L59661-135
C067 F35660-22031,39,57,661-369
C067 H3559661-70 A55
69 FD71660-24071666-3235
7331660-33059666-29431,33
73 A41,61,63,65660-39269666-31135
660-40039,67666-32231
77 K67660-40369667 C-857,59
79-3131660-41659667 J-3341
8735,37,45660-44341667 M-1449
87 U41660-44541667 C-1671
8841,63660-67743670 E-231,55
88 B45,61660-68039671-1739
88 D45660-68331,43,45671-8571
88 F57,59,61660-68433671-13469
89-6447660-68841671-13569
9163,65660-70839671 A-6547
91 A63660-71339671 B-369
91 D65660-71849671 B-1169
9349,67660-71941671 B-1269
9459660-721 A39671 C-431,39
9543660-721 C39671 C-1669
96 A43660-73153671 C-1867
9841,43,55,57,59660-73933,35,37671 D-269
660-74931671 D-569
98 A47,51660-75031671 D-969
10951660-75367671 D-1569

NUMERICAL INDEX OF PARTS

Part No.Page No.Part No.Page No.Part No.Page No.
671F-3......699937......4522541A......45
671F-4......31,3911635 B......6922541C......33,37
671F-19......5511698 L......7122541D......47
671F-41......31,5512934 A......3722552A-16......47
671F-64......5514077......4522557J......49
671F-66......6715037 A......4922560......67
671F-69......47,69,7115438 C......5322560B......55,57,59,63
671F-71......3921101 W-2......71
671F-73......3921101 W-4......7122562......63
671F-94......6921101 W-6......7122562A......47
671F-96......6921192 R......3722562B-10......61
671H-1A......6721205 B......7122565X......61
671H-1D......6721205 C......7122569B......37,41
671H-1E......6721207 B......7122569C......33,37,49,51
671H-1F......6721210......61
671H-1G......6721237 DF......3922569D......53
671H-1H......6721237 DG......3922569G......35,37,41,67
671H-2......6721237 DP......39
671H-2A......6721237 DR......3922569J......53
671H-2B......6721237 DU......3922569M......37
671H-2C......6721237 EA......3922569U......39
671H-2D......6721371 LR......7122569V......37
998-332......6921374 C......7122569W......37
999-140 B......6721374 D......7122570......35,63
999-146......6921374 N......7122570A......43,45
999-166......6721374 P......7122570E......57
1453 R......7121374 R......7122571E......33
1740......6321374 T......7122571F......69
RM2719-1......6921374 U......7122572A......67
RM2791-3......7121375 BW......5922574D......55
RM2805-1......7121375 BX......5522580......61
RM2850 D......6921375 BY......5522580D......41
RM2871 B......6921756 G......4722585......67
RM2879-2......3722501 A......5122585A......53
RM2881-1......6922508......7122585U......37
RM2964 B......39,5522513......5322587N......35
RM2997 D......47,6722516......4122592B......33
RM3162-2......7122516 A......4322593......55
RM3211-1......4722516 B......4322594......43
RM3263-5......7122517......37,4322596H......45,49
RM3287-2......6922519 H......4322597E......37,39
RM3293-3......7122519 K......4922599......65
RM3320-1......6922519 M......4322604......71
RM3633-1......39,5522520......41,5322635D-6......69
RM3728-1......3122521......3522635G-16......53
RM3832-1......6922524......5522637P-24......43
RM4098-1......6922526......5922638C......71
6042 A......5922526 H......3722640M-96......71
8372 A......57,5922528......4122640R-40......47
9846......4522539 G......3522650CF-6......69
9846 A......4122541......3322651CD-4......41,71

NUMERICAL INDEX OF PARTS

Part No.Page No.Part No.Page No.Part No.Page No.
22652A-6......4722840C......49V29944A......67
22652A-8......39,4122845A......65V29944B......67
22652A-20......3322845R......4335032R......69
22652B-10......4522851A......3335818N-8......61
22652B-12......31,4522851D......3735830B......65
22652J-10......6122861C......3735830C......65
22653B-12......7122868C......4335830H......65
22653J-4......3922872......5335830K......65
22653J-8......4122881B......3335830R-8......65
22716......6722881C......6135830R-9......65
22716A......5322882......4939198D......45
22720A......31,3922882D......3939592AK......51
22720B......3122883B......3739656A......59
22726L......5122891D......4339868H......53
22729B......4122894C......39,49,6741071G......39,45,63,67
22729L......4722894E......39,59
22729AA......4522894J......5541350X......39
22730......31,3922894K......35,4341391......43
22731......4122894L......41,49C50001A......37
22733......3522894P......49C50001B......37
22738M......4322894R......39,57,69C50001C......37
22743......47,6122894W......45,49,59C50001D......53
22752......6122894AD......39,41C50001E......37
22758......4922894AE......39,41C50001G......37
22758E......4722894AM......57,59C50001J......37
22758K......4723420S-9-1/8......61C50004......41
22760A......6123421S-9-1/8......61C50005F......63
22764......33,4723421U-12-1/16......61C50005G......63
22768......41,6723421U-16-1/16......61C50013......61
22768A......6123421U-16-3/32......61C50013A......61
22778A......4523421U-18-3/32......61C50013B......61
22784E......3323422U-1/16......61C50013D......61
22784M......6323422AY-18-1/8......61C50014......41
22784N......3923422BZ-3/32......61C50014A......41
22785......61,6323423S......61C50017A......61
22789A......4723424S......61C50017C......61
22792A......5323425V......61C50018B-9......61
22797B......4128561M......71C50018D......61
22799B......63,6528562A......71C50018L-12......61
22799E......63G28562A......69C50018L-16......61
22799G......6328604S......71C50020......63
22799AH......5328633L......57,59C50021A......39
22804......4329105AP......41C50021C......41
22806D......3929192AE......41C50021D......41
22824B......5529476PY......51C50021E......39
22825......5529476PX......51C50021F......41
22837......5129480ACB......69C50022A......41
22839......3529480ACD......69C50022C......49
22839A......4129480ACW......69C50022D......49
22839G......4329480ADL......71C50022G......43
22840A......6529480XA......39C50022J......39

NUMERICAL INDEX OF PARTS

Part No.Page No.Part No.Page No.Part No.Page No.
C50022K......59C50035T......43C50042AB-16......55
C50022L......55C50035V......45C50042AC-16......55
C50022N......59C50035W......45C50042AD......41
C50023E......41C50035X......45C50042AE......59
C50023F......41C50035Y......35C50042AF......55
C50023G......41C50035Z......35C50042AG......55
C50024B......63C50035AA......45C50042AJ-12......57
C50024D......63C50035AB......45C50042AK......57
C50024E......63C50035AJ......45C50042AL......59
C50024Y-9......65C50035AL......45C5004339,41
C50025......61C50035AM......43C50043H-021......43
C50025A......47C50035AN......45C50043H-025......43
C50025E......61C50035AP......45C50043H-029......43
C50025F......47C50035AR......43C50044A......41
C50025N......61C50035AS......45C50044D......35
C50030......63C50035AW......47C50044F......35
C50030A......63C50035AX......47C50044G......35
C50030B......63C50035AY......47C50044T......53
C50030C......63C50035AZ......47C50044V......41
C50030D......63C50035BA......47C50045B......43
C50031......63C50035BC......45C50047G......43
C50032......53C50036......43C5004937
C50032B......37C50036A......43C50049A......35
C50032C......53C50036B......43C50051X......35,45
C50032D......37C50036C......43C50054D......35
C50034D......43C50036D......43C50054M......51
C50034F......43C50036E......43C5005539
C50034G......43C50036F......43C50055C......39
C50034H......43C50036G......43C50055K......35
C50034J......43C50036J......35C50055L......35
C50034K......43C50036M......43C50055S......35
C50034L......43C50036P......39,41C50055W......39
C50034M......43C50036R......49,57,59C50055Y......39
C50034N......43C50036U......35C50056B......49
C50034V......43C50036AJ......49C50056C......49
C50034X......43C50036AS......69C50056D......49
C50034Z......43C50037A......45C50056J......49
C50034AG......43C50037D......57C50056K......49
C50034AH......43C50041D......61C50056L......49
C50034AK......43C50041E......61C5005741
C50035......45C50041F......61C50057A......41
C50035A......43C50041G......61C50057B......41
C50035B......43C50041H......61C50057C......41
C50035F......43C50042F......41C50057D......35
C50035G......35C50042G......41C50057E......49
C50035K......43C50042H......41C50057K......49
C50035H......45C50042M......39C50058A......53
C50035P......45C50042Y......39C50058F......51
C50035N......45C50042Z-13......55C50058H......61
C50035R......45C50042Z-16......57C50058K......61
C50035S......45C50042Z-18......59C50063Y......57

NUMERICAL INDEX OF PARTS

Part No.Page No.Part No.Page No.Part No.Page No.
C5006749C50078W....57C50092J....51
C50067A....49C50078X....57C50092L....51
C50067B....49C50078Y....57C50092M....51
C50067D....49C50078AA....57C50092N....53
C50067F....49C50078AB....57C50092R....51
C50067G....49C50078AC....57C50092S....51
C50067K....49C50078AE....57C50092U....53
C50067L....39C50078AF-10....59C50093....33
C50068A....47C50078AF-15....59C50093F....33
C50068B....47C50080....63C50093G....33
C50068C....47C50080A....63C50093L....33
C50068U....47C50080B....35C50093M....33
C50068X....35C50080C....63C50093N....33
C50068Y....47C50080AA....63C50093P....33
C50068Z....47C50080AB....63C50093R....33
C50068AG....35C50082B....37C50093S....33
C50070B....51C50082C....37C50093T....33
C50074....59C50082D....35C50093U....33
C50075....37C50082E....35,67C50093Z....33
C50075B....59C50082K....37C50093AA....33
C50076....59C50082L....37C50093AB....33
C50076C....49C50082M....37C50093AE....33
C50077....59C50082N....37C50093AG....33
C50077B....57,59C50082T....37C50093AH....33
C50077C....57,59C50082U....37C50093AJ....33
C50077D....57,59C50082V....37C50093AK....39
C50077E....49C50082W....53C50093AN....33
C50077F....49C50082X....37C50093AS....37
C50077G....49C50082Y....53C50093AU....37
C50077H....57,59C50082Z....53C50093AW....35
C50077J....57,59C50082AA....37C50093AX....35
C50077K....59C50082AH....53C50093AY....35
C50077M....57C50082AJ....37C50093BC....41
C50077N....57C50082AK....37C50093BE....31
C50077P....41C50082AP....55C50093BH....33
C50077AD....49C50082AR....55C50093BK....39
C50078C....53C50082AW....37C50093BR....53
C50078E....59C50082DA....35C50093BS....33
C50078F....59C50082UA....37C50093BX....31
C50078G....55C50090....41C50093CA....33
C50078H....55C50090A....37C50093CB....33
C50078J....55C50090B....41C50093CG....31
C50078L....55C50090D....41C50093CH....31,45
C50078M....55C50090E....35C50093CJ....31
C50078N....55C50090F....35C50093CL....31
C50078P....55C50090G....35C50093CM....31
C50078R....59C50090J....49C50093CS....55
C50078S....59C50090K....35C50093CT....35
C50078T....59C50090M....49C50093CV....31
C50078U....59C50090N....49C50093DB....35
C50078V....59C50092G....51C50094....31

NUMERICAL INDEX OF PARTS

Part No.Page No.Part No.Page No.Part No.Page No.
C50094 B....3150393 CX....3556330 AJ....63
C50094 C....3150393 CY....3156330 AK....63
C50094 F....3150393 CZ....3556330 AP....63
C50094 G....3150393 DC....3156330 AU....63
C50094 P....3150393 DD....3556330 AV....63
C50094 R....3150394 AB....6956330 AW....63
C50094 U....3151192 B....5356330 AX....63
C50094 V....3151242 L....57,5956335 D....43
C50094 W....3351280 K....6356358 B....51
C50094 X....3951292 A....5156358 C....51
C50094 Y....3151292 D....5356358 D....51
C50094 Z....3151292 F-2....5156392 E....51
C50094 AA....3151292 F-8....5156392 F....51
C50094 AC....3151295 A....7156505....63
C50094 AF....5551405 A-10....6556520....63
C50094 AJ....3951405-16....6556524 B-1....63
C50094 AM....3151408-16....6156530....63
C50095....33,7151409....6156530 A....63
C50095 C....7151420-12....6556905 A-9....65
C50095 D....3751420-16....6556905 R-9....65
C50095 E....3751424 A-12....6556920 A-9....65
C50095 F....37C51424-16....6556920 R-9....65
C50095 G....3751430 A-12....65C56924 A-9....65
50304 D....5151430 A-16....65C56924 R-9....65
50318 C....6151430 D....6556930....65
50320 M-8....6551430 F....63,6556930 B....65
50324....6351480-12....6156958....53
50324 N-8....6551508 G-1....6159451 F....55
50325 K....6151509 C....6161434 G....45
50330 BF-8....6551530 D....6363471....51
50354 D....3551530 F....6395051....69
50354 E....3551530 G....6395250....69
50358 G....6151854 C....4997127....37
50358 H....4151908 B-8....6199312 A....67
50358 J....5151908 B-9....6199346 T....67
50358 K....5151909 C....6199563 A-75....69
50364 H....7151909 D-8....6199563 A-130....69
50370....5151909 D-9....6199669 K....67
50370 A....5151959 D....5399670 SH....67
50375....5952804 E....4199671 SA....67
50375 A....5952904 E....4199672 SA....67
50375 B....5952930 AC....57,6399672 SB....67
50375 C....5952958 D....4199677 SA....67
50375 D....5952958 G....5399677 SB....67
50378 R....5153193 B....3999677 SC....67
50382 BN....3753634 C....41,45,55,99679 SA....67
50382 BP....376199679 SB....67
50390 D....6156305 C....6399679 SC....37
50392 B....5156320 E....6399679 SD....37
50393 V....3156322 B....31,33,39,99679 SE....67
50393 AY....314399679 SF....67
50393 AX....31C56324 C....6399679 SG....67
50393 CF....3956330 AD....6399679 SH....67
50393 CS....31,3556330 AF....6399691 SA....67
50393 CU....3156330 AG....6399697 SA....67
50393 CV....3556330 AH....63

NOTES

Union Special Corporation

Corporate Office

One Union Special Plaza

Huntley, IL 60142

Phone: 847·669·5101

Fax: 847·669·4454

Union Special GmbH

EuropeanDistributionCenter

Raiffeisenstrasse 3

D-71696 Möglingen, Germany

Tel: 49·07141·247·0

Fax: 49·07141·247·100

JUKI CORPORATION

INTERNATIONAL SALES DIVISION

8-2-1, KOKURYO - CHO,

Union Special INDUSTRIAL SEWING EQUIPMENT

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Product information

Brand : Union Special

Model : XF512E100MP

Category : Sewing machine