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USER MANUAL FS311S13 Union Special

OPERATOR / ILLUSTRATED PARTS MANUAL
Union Special FS311S13 - 1

text_image FS300 SERIES, PLAIN AND DIFFERENTIAL FEED, HIGH SPEED FLAT BED MACHINES

MANUAL NO. PT9605

FOR STYLES

FS311S01 FS311S13

FS311S02 FS311S14

FS311S11 FS311S21

FS311S12

Second Edition Copyright 1998

By

Union Special Corporation Rights Reserved In All Countries

Printed in U.S.A. Sept. 1998

PREFACE

This parts manual has been prepared to assist you in locating individual parts or assemblies on FS300 Series machines. It can be used in conjunction with Union Special Engineer's Manual EN9424.

It is the desire of Union Special that each machine run at its optimum performance. Parts listed in this manual are designed specifically for your machine and are manufactured with utmost precision to assure long lasting service.

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

On the following pages are illustrations and terminology used in describing the parts used on FS300 Series machines.

CONTENTS

PREFACE 2

IDENTIFICATION OF MACHINES 4

CLASS DESCRIPTION 4

STYLE OF MACHINES 4

ILLUSTRATIONS 5

IDENTIFYING PARTS 5

NEEDLES 5

SAFETY RULES 6

CAUTION AREAS: 8

OPERATOR'S DAILY CHECK LIST: 9

OPERATING CAUTIONS: 9

OPERATING CAUTIONS (CONT.): 10

OPERATING THE PEDALS: 10

LUBRICATION: 11

THREADING THE MACHINE: 12

THREADING THE MACHINE (CONT.): 13

THREADING THE MACHINE (CONT.): 14

THREADING METHODS 14

ADJUSTING THE STITCH LENGTH: 15

PRESSER FOOT PRESSURE AND LIFTER: 15

BUSHINGS 17

NEEDLE BAR 19

UPPER MAIN SHAFT 21

THREAD GUIDE 23

TENSION RELEASE & THREAD TENSION 25

PRESSER FOOT LIFT 27

COVERS, UPPER ARM 29

LOWER MAIN SHAFT 31

LUBRICATION, OIL TUBING & OIL PUMP 33

LOOPER DRIVE 35

NEEDLE GUARD 37

LOOPER THREAD TAKE-UP 39

FEED DRIVE MECHANISM FOR PLAIN FEED 41

FEED DRIVE MECHANISM FOR DIFFERENTIAL FEED 43

FEED DRIVE MECHANISM FOR PLAIN FEED 45

FEED DRIVE MECHANISM FOR DIFFERENTIAL FEED 47

COVERS, LOWER BED 49

COVERS, LOWER BED FOR PLAIN FEED 51

COVERS, LOWER BED FOR DIFFERENTIAL FEED 53

SEWING PARTS 55

TABLING AND NEEDLE DIPPER ASSEMBLY (EXTRA SEND CHARGE) 57

ACCESSORIES 59

NUMERICAL INDEX OF PARTS 60

NUMERICAL INDEX OF PARTS 61

NOTES 62

NOTES 63

IDENTIFICATION OF MACHINES

Each UNION SPECIAL machine is identified by a style number, which is stamped into the style plate affixed to the middle of the machine under the tension assembly. The serial number is stamped into the serial number plate affixed to the right rear base of the machine.

CLASS DESCRIPTION

Precision high speed, single needle, plain or differential feed flat bed machines. Totally enclosed feed and looper drive mechanism, automatic forced feed lubrication system with easily replaceable filter. Main feed has thumbscrew adjustment and differential feed has lever adjustment and independently driven rear needle guard.

STYLE OF MACHINES

FS311S01-1MSEAMER. One needle, plain feed, medium capacity. Needle thread ratio index furnished.- Typical Application - For seaming side and inseams on work and dress pants. Seam Specifications 401SSa-1. Recommended needle 128 GBS sizes 075/029 - 090/036. Stitch range 7-10 S.P.I.. Maximum recommended speed 6500 R.P.M..
FS311S01-1MCC2SEAMER. Same as style FS311S01-1M, except with Power "Air Klipp" Chain Cutter.
FS311S02-1MSEAMER. Same as style FS311S01-1M, except foot with left yielding section. - Typical Application - For side-seaming trousers when crossing front pockets.
FS311S02-1MCC2SEAMER. Same as style FS311S02-1M, except with Power "Air Klipp" Chain Cutter.
FS311S11-1M"FEEDING FOOT" SEAMER. Same as style FS311S01-1M, except with "Feeding Foot". - Typical Application - For seaming trousers, coats etc..
FS311S11-1MCC2"FEEDING FOOT" SEAMER. Same as style FS311S11-1M, except with Power "Air Klipp" Chain Cutter.
FS311S12-1M"FEEDING FOOT" SEAMER. Same as style FS311S11-1M, except foot with left yielding section.- Typical Application - For side-seaming trousers when crossing front pockets.
FS311S12-1MCC2"FEEDING FOOT" SEAMER. Same as style FS311S12-1M, except with Power "Air Klipp" Chain Cutter.
FS311S13-1M"FEEDING FOOT" SEAMER. Same as style FS311S11-1M, except with NARROW "FEEDING FOOT". - Typical Application - For seaming trousers, coats, panels for baseball caps and similar operations. Recommended needle 128 GBS sizes 070/027 - 080/032.
FS311S13-1MCC2"FEEDING FOOT" SEAMER. Same as style FS311S13-1M, except with Power "Air Klipp" Chain Cutter.
FS311S14-1M"LOW INERTIA FOOT" SEAMER. Same as style FS311S01-1M, except "Low Inertia" presser foot.- Typical Application - For seaming side and inseam trousers.
FS311S14-1MCC2"LOW INERTIA FOOT" SEAMER. Same as style FS311S14-1M, except with Power "Air Klipp" Chain Cutter.
FS312S21-1MDIFFERENTIAL FEED "LOW INERTIA FOOT" SEAMER. Same as style FS311S14-1M, except tandem differential feed.
FS312S21-1MCC2DIFFERENTIAL FEED "LOW INERTIA FOOT" SEAMER. Same as style FS312S21-1M, except with Power "Air Klipp" Chain Cutter.

ILLUSTRATIONS

This manual has been arranged to simplify ordering repair parts. Exploded views of various sections of the mechanism are shown so that the parts may be seen in their actual position in the machine. On the page opposite the illustration will be found a listing of the parts with their part numbers, description and the number of pieces required in the particular view being shown.

Numbers in the first column are reference numbers only, and merely indicate the position of the part in the illustration. The reference number should never be used in ordering parts. Always use the part number listed in the second column.

Component parts of sub-assemblies which can be furnished for repairs are indicated by indenting their descriptions under the description of the main sub-assembly. As an example refer to the following text.

  1. 50366B Needle Thread Strike-Off Assembly 1
  2. 50358V Needle Thread Strike-Off 1
  3. 50370F Thread Strike-Off Component 1
  4. SS7060310SP Screw, for plate strike-off 1

When a part is common to all machines covered in this manual, no specific usage will be mentioned in the description. However, when the parts for the various machines are not the same, the specific usage will be mentioned in the description and, if necessary, the difference will be shown in the illustration.

*Ref. No. showing no Part No. is for location only. Part is not for sale separately.

A numerical index of all the parts shown in this manual is located at the back. This will facilitate locating the illustration and description when only a part number is known.

IDENTIFYING PARTS

Where construction permits, each part is stamped with its part number. On some of the smaller parts and on those where construction does not permit, an identification letter is stamped in to distinguish the part from similar ones.

PLEASE NOTE: Part numbers represent the same part, regardless of which manual they appear. On all orders please include part number, name and style of machine for which the part was ordered.

For optimum performance use only genuine Union Special replacement parts.

NEEDLES

Each needle has both a type and size number. The type number denotes the kind of shank, point, length, groove, finish and other details. The size number, stamped on the needle shank, denotes the largest diameter of the blade measured between the shank and the eye. Collectively, the type number and size number represent the complete symbol which is given on the label of all needles packed and sold by Union Special.

TYPE

DESCRIPTION

128 GBS Short, double groove, struck groove, ball eye, spotted, ball point, chromium plated- Sizes available 070/027, 075/029, 080/032, 090/036.

When changing the needle, make sure it is fully inserted in the needle holder before the screw is tightened.

When ordering needles, please use the complete type and size numbers as printed on the package to ensure prompt and accurate processing of your order. A complete order should read as follows: "100 needles, type 128 GBS, size 075/029".

SAFETY RULES

  1. Before putting the machines described in this manual into service, carefully read the instructions. The starting of each machine is only permitted after taking notice of the instructions and by qualified operators.

IMPORTANT! Before putting the machine into service, also read the safety rules and instructions from the motor supplier.

  1. Observe the national safety rules valid for your country.

  2. The sewing machines described in this instruction manual are prohibited from being put into service until it has been ascertained that the sewing units which these sewing machines will be built into, have conformed with the EC Council Directives (89/392/EEC, Annex II B).

Each machine is only allowed to be used as foreseen. The foreseen use of the particular machine is described in paragraph "STYLES OF MACHINES" of this instruction manual. Another use, going beyond the description, is not as foreseen.

  1. All safety devices must be in position when the machine is ready for work or in operation. Operation of the machine without the appertaining safety devices is prohibited.

  2. Wear safety glasses.

  3. In case of machine conversions and changes all valid safety rules must be considered. Conversions and changes are made at your own risk.

  4. The warning hints in the instructions are marked with one of these two symbols:

Union Special FS311S13 - SAFETY RULES - 1

  1. When doing the following the machine has to be disconnected from the power supply by turning off the main switch or by pulling out the main plug:

8.1 When threading needle(s), looper, spreader etc.
8.2 When replacing any parts such as needle(s), presser foot, throat plate, looper, spreader, feed dog, needle guard, folder, fabric guide etc.
8.3 When leaving the workplace and when the workplace is unattended.
8.4 When doing maintenance work.
8.5 When using clutch motors without actuation lock, wait until the motor is stopped totally.

  1. Maintenance, repair and conversion work (see item 8) must be done only by trained technicians or special skilled personnel under consideration of the instructions.

  2. Any work on the electrical equipment must be done by an electrician or under direction and supervision of special skilled personnel.

  3. Work on parts and equipment under electrical power is not permitted. Permissible exceptions are described in the applicable sections of standard sheet DIN VDE 0105.

  4. Before doing maintenance and repair work on the pneumatic equipment, the machine has to be disconnected from the compressed air supply. In case of existing residual air pressure, after disconnecting from compressed air supply (i.e. pneumatic equipment with air tank), the pressure has to be removed by bleeding.

FS300 SERIES

BUILDING BLOCK STYLE

DESIGNATION SYSTEM

Union Special FS311S13 - DESIGNATION SYSTEM - 1

flowchart 
graph TD
    A["SUB-CLASS (DESCRIBES TYPICAL APPLICATION) S:=SEAMING L:=LAP SEAM *00-99=VARIETY OF SUBCLASS"] --> B["STITCH TYPE 1=MULTI THREAD CHAIN STITCH 2=BOTTOM COVERSTITCH 3=TOP & BOTTOM COVERSTITCH"]
    A --> C["BASIC FRAME STYLE CS=CYLINDER BED FS=FLAT BED"]
    B --> D["FS311S01 - 1M"]
    C --> E["GENERATION 1=FIRST 2=SECOND 3=THIRD"]
    C --> F["FEED TYPE 1=PLAIN 2=DIFFERENTIAL"]
    G["NEEDLE SPACING 32=3.2mm 36=3.6mm 64=6.4mm 72=7.2mm"] --> H["NUMBER OF NEEDLES 1=SINGLE NEEDLE MACHINE 2=TWO NEEDLE MACHINE 3=THREE NEEDLE MACHINE"]
    G --> I["DEVICES CC*=CHAIN CUTTER •1-9=VARIETY OF DEVICES"]
    H --> J["CAPACITY M=MEDIUM H=HIGH"]
    I --> J
    K["*AVAILABLE IN MULTI NEEDLE MACHINES ONLY"] --> G

CAUTION AREAS:

Union Special FS311S13 - DESIGNATION SYSTEM - 2

text_image CAUTION KEEP NEEDLE BAR GUARD IN PLACE WEAR SAFETY GLASSES, DO NOT TAMPER WITH SAFETY SHIELD, USE WITHOUT SHIELD MAY CAUSE AN INJURY. JAUKI Union Special JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKI JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKIII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKII JAUKI

OPERATOR'S DAILY CHECK LIST:

The following should be checked daily and cleaned as required when it applies to your Union Special machine:

••Oil flow

••Lint area (clean with compressed air or brush)

••Cooling airways

Oil level

- Needle bar bushings

••In the machine

• Under feed dogs & throat plates

••In the motor

••In knives

••In the cooling package

••In thread control eyelets

(package is an extra send charge)

Union Special FS311S13 - OPERATOR'S DAILY CHECK LIST: - 1

text_image OIL SIGHT GAUGE
  1. The oil level in the sight gauge should be between the two red lines when the machine is at rest. If not, fill with Union Special Specification 175 oil, (Union Special Part No. 28604R).

Union Special FS311S13 - OPERATOR'S DAILY CHECK LIST: - 2

natural_image Technical line drawing of a mechanical device with gears and chains (no text or symbols)
  1. The correct rotating direction of the handwheel is counterclockwise, as viewed from the handwheel's side. NEVER run the machine in reverse direction.

OPERATING CAUTIONS:

Union Special FS311S13 - OPERATING CAUTIONS: - 1

Union Special FS311S13 - OPERATING CAUTIONS: - 2

Union Special FS311S13 - OPERATING CAUTIONS: - 3

natural_image Line drawing of a sewing machine needle stitching fabric (no text or symbols)

Union Special FS311S13 - OPERATING CAUTIONS: - 4

natural_image Technical line drawing of a sewing machine mechanism (no text or symbols)

Union Special FS311S13 - OPERATING CAUTIONS: - 5

text_image V BELT
  1. Do not put your hand under the needles when turning on the power switch or at any time.
  2. Do not put your hand into the sewing area while the machine is running.
  3. Turn off the power switch and make sure the clutch motor is at rest before removing the V belt.

OPERATING CAUTIONS (CONT.):

Union Special FS311S13 - OPERATING CAUTIONS (CONT.): - 1

  1. During operation, do not allow head, hands or any instrument, tool etc. near handwheel, V belt and motor.
  2. Do not operate your machine without the proper belt guard, sewing guards or any other protectors that have been provided. Doing so is very dangerous.
  3. Before inspecting, adjusting, cleaning, threading the head or replacing needles, turn OFF the power switch. Make sure the flywheel on the motor has stopped, it will be kept running by inertia after turning OFF the power switch. DO NOT depress the foot pedal while the machine is running or it will cause the machine to rotate abruptly.
  4. Turn OFF the power switch when you leave your machine or in case of a power failure.
  5. Do not wipe the machine surface with lacquer thinner.

OPERATING THE PEDALS:

Union Special FS311S13 - OPERATING THE PEDALS: - 1

text_image Technical diagram of a mechanical or electrical system with labeled components A and B, showing connections and structural elements.

Union Special FS311S13 - OPERATING THE PEDALS: - 2

text_image Technical diagram of a mechanical device with labeled parts E, C, and D
  1. Locate the center of drive treadle (A) to be in line with the needles.
  2. Locate presser lifter pedal (B) for operator comfort.
  3. Use S-shaped hook (C) to connect presser lifter pedal chain (D) to presser lifting lever (E).

LUBRICATION:

Union Special FS311S13 - LUBRICATION: - 1

text_image Technical diagram of a mechanical device with labeled components A, B, C, D and numbered parts 1-4, including an inset view of a gear mechanism.

The oil should be between the two red lines in sight gauge (B) when the machine is at rest.

  1. If oil is required remove oil cap (A).
  2. Fill between lines (B) with Union Special Specification 175 oil (Union Special Part No. 28604R).

Union Special FS311S13 - LUBRICATION: - 2

CAUTION! Do not exceed the upper red marker line. Excessive oil in the machine will result in oil leakage and possible overheating.

  1. To drain oil reservoir, remove oil drain cap (C) on the underside of the machine.

  2. To ensure oil flow through machine, check oil flow window (D).

THREADING THE MACHINE:

Union Special FS311S13 - THREADING THE MACHINE: - 1

Turn off main power switch before threading! When using clutch motors without actuation lock wait until the motor has completely stopped.

Thread the machine according to the following threading illustrations.

Union Special FS311S13 - THREADING THE MACHINE: - 2

text_image thread the machine according to the following threading illustrations. 2 1 A B 3

A Left Needle Thread

1 Thread Lubricator Area

B Looper Thread

2 Needle Bar Area

3 Thread Take-Up Area

THREADING THE MACHINE (CONT.):

Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 1

text_image A B Long groove facing to the front

The standard needle is 128 GBS, needle range sizes "070/027 - 090/036."

Insert needle according to the following procedure:

  1. Bring needle head (A) to the highest position.
  2. Loosen screw (B), insert needle into holes. The needle scarf should face rearwards as viewed from the operator's side.
  3. Retighten screw (B).

Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 2

text_image 1 1.2±3 Thread Lubricator Area

Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 3

text_image 2 Needle Bar Area

Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 4

text_image 3 Thread Take-up Area

THREADING THE MACHINE (CONT.):

When the needle thread lubricator is used:

  1. Saturate felt (A).
  2. Pass thread over felt.

When the needle thread lubricator is not used:

  1. Remove felt (A).

Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 5

natural_image Technical line drawing of a mechanical clamp or bracket assembly (no text or symbols)

THREADING METHODS

Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 6
CAUTION!

When using an untwisted thread such as wooly nylon or weak thread, do not wind it around the intermediate thread guide.

Twisted Thread
Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 7

natural_image Pure technical line drawing of a pipe connection with no text, numbers, or symbols

Non-Twist Thread
Union Special FS311S13 - THREADING THE MACHINE (CONT.): - 8

natural_image Pure technical line drawing of a pipe fitting with no text, numbers, or symbols

PRESSER FOOT PRESSURE AND LIFTER:

  1. Adjust presser foot pressure by loosening nut (A) and turning presser foot adjust screw (B) clockwise to increase the pressure, counterclockwise to decrease the pressure.
  2. Retighten nut (A).

Union Special FS311S13 - PRESSER FOOT PRESSURE AND LIFTER: - 1

text_image Technical diagram of a mechanical device with labeled components A and B

ADJUSTING THE STITCH LENGTH:

Union Special FS311S13 - ADJUSTING THE STITCH LENGTH: - 1

Turn off main power switch before setting the stitch length! When using clutch motors without actuation lock wait until the motor has completely stopped.

  1. To change stitch length turn stitch regulating screw (A). Clockwise to increase the stitches per inch/shorten the length of one stitch.

Counterclockwise to decrease stitches per inch/increase the length of one stitch.

  1. Numbers 0-11 on stitch regulating screw are for operator's reference only.

Union Special FS311S13 - ADJUSTING THE STITCH LENGTH: - 2

text_image Numbers 0-11 A

DIFFERENTIAL FEED MECHANISM:

  1. Loosen screw (A) and move lever (B) up for gathering (+) and down (-) for stretch.
  2. Retighten screw (A).
  3. When the main stitch travel is set at .078" (2mm) the differential ratio for maximum gather is 1:1.5, maximum stretch is 1:0.6, depending on material.

Union Special FS311S13 - DIFFERENTIAL FEED MECHANISM: - 1

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

Union Special FS311S13 - DIFFERENTIAL FEED MECHANISM: - 2

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

BUSHINGS

Ref.

No. Part No.

Description

Amt.

Req.

  1. 50654 Bushing, for needle bar, upper 1
  2. 50332U Pin, for front lifter lever 1
  3. 50330CZ Bushing, for presser bar 1
  4. 50654A Bushing, for needle bar, lower 1
  5. 50344BE Bushing, for lower mainshaft, left 1
  6. SQ1110401MZ Fitting 1
  7. 50344BC Bushing, for needle lever 1
  8. 50344E Bushing 1
  9. 50344BF Bushing, for lower mainshaft, right 1
  10. 35036BS Stitch Regulator Bushing 1
  11. 50393GE Oil Sight Gauge .... 1
  12. 22571L Screw, for drain plug.... 1
  13. 50393FU Fitting, oil tube 1
  14. 50393EY Fitting, filter 1
  15. 50392AB Bushing, for tension release.... 1
  16. PS0400142KH Pin 1
  17. 50381E Bushing, for lifter lever, back 1
  18. 50344BU Bushing, front
  19. SQ1110401MZ Fitting

Union Special FS311S13 - BUSHINGS - 1

text_image TORQUE: 18-20in.1bs. (2.0-2.3Nm) TORQUE: 18-20in.1bs. (2.0-2.3Nm) TORQUE: 18-20in.1bs. (2.0-2.3Nm) TORQUE: 14-16in.1bs. (1.6-1.8Nm) Three Bond: Union Special No. CE63 Loctite: Union Special No. CE59 Loctite: Union Special No. CE27 16 17 18 19 20 21 22 23 24 25 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

NEEDLE BAR

Ref.

No. Part No.

Description

Amt.

Req.

  1. SS4080620TP Screw 1
  2. 50323P Needle Bar Eyelet 1
  3. 50317B Needle Bar 1
  4. 50345W Connecting Rod Assembly 1
  5. 50355AM Needle Bar Clamp 1
  6. SS7111120TP Screw 1
  7. 50352 Pivot Pin 1
  8. 661-259B Needle Bearing Cage 1
  9. 50355AN Connecting Rod 1
  10. 50351A Washer 1
  11. 50393JP Eyelet Seal 1
  12. 50358X Needle Thread Eyelet 1
  13. SS7080520SP Screw 1
  14. CE27 Loctite Adhesive, (not shown), for screw
  15. 50354F Slide Block 1
  16. CE63 Three Bond Adhesive, (not shown), for slide block ....
  17. SS8110422TP Screw 1
  18. 29476TC Oil Tube Assembly 1
  19. 50393JZ Oil Tube 1
  20. 50393JW Hose Clamp 1
  21. SS6090440SP Screw, for oil tube assembly 1
  22. SS6121010SP Screw 2
  23. 29476VN Slide Block Guide and Cover Assembly 1
  24. 50338 Guide, for slide block 1
  25. 666-328 Felt, for slide block 1
  26. CE59 Loctite Adhesive, (not shown), for felt ....
  27. 50338A Cover, for guide 1
  28. SS6090620SP Screw 1

Union Special FS311S13 - NEEDLE BAR - 1

text_image TORQUE: 46-48in.1bs. (5.2-5.4Nm) TORQUE: 32-34in.1bs. (3.6-3.9Nm) TORQUE: 54-56in.1bs. (6.0-6.3Nm) TORQUE: 46-48in.1bs. (5.2-5.4Nm)

UPPER MAIN SHAFT

Ref.

No. Part No.

Description

Amt.

Req.

  1. 50391 Counter Weight 1
  2. SS7111120TP Screw, for counter weight 1
  3. SS8681412TP Screw, for counter weight 1
  4. SS7681410TP Screw, for counter weight 1
  5. 50322AF Upper Main Shaft 1
  6. 50335BD Bearing Adapter Assembly 1
  7. SS8660612TP Screw, for bearing adapter 2
  8. 661-262 Retaining Ring 1
  9. 50342BE Sprocket, for upper main shaft 1
  10. SS8661012TP Set Screw, for sprocket 2
  11. 660-1087 "O" Ring.... 1
  12. 50321F Handwheel 1
  13. SS8681412TP Set Screw, for handwheel 2
  14. 660-1043 Tack Pin, for handwheel 1
  15. 661-261 Load Ring, for lower main shaft 2
  16. SS7660520SP Screw, for handwheel preload 1

Union Special FS311S13 - UPPER MAIN SHAFT - 1

text_image Technical diagram of a mechanical assembly with numbered components and exploded view, likely for engineering or manufacturing documentation.

THREAD GUIDE

Ref.

No. Part No.

Description

Amt.

Req.

  1. SS7120640SP Screw, for lead-in eylet 2
  2. 50692H Thread Eyelet Assembly 1
  3. SS7090910TP Screw 1
  4. WS0410002KP Split Washer 1
  5. 50366A Thread Eyelet Tube Bracket 1
  6. 50392S Lead-In Tension Eyelet 1
  7. 50366 Thread Eyelet Tube 1
  8. SS4120915SP Screw, for spreader thread guide 2
  9. 29476TG Thread Ratio Control Assembly 1
  10. 50393HH Silicone Thread Lubricator 1
  11. 50683A Thread Control Bracket 1
  12. SS4090815SP Screw, for silicone tank 2
  13. 56358B Guide Block 1
  14. 56358C Guide 1
  15. 158B Thread Eyelet 1
  16. 56358D Washer 1
  17. 98A Screw 1
  18. 22837 Screw 1
  19. 12124202 Looper Frame Eyelet 1
  20. SS70906105SP Screw 1
  21. SS7120640SP Screw 1
  22. 50392AE Looper Frame Eyelet 1
  23. SS1121010SP Screw, for thread guide 1
  24. 50357AR Nipper Plate Assembly 1
  25. SD0380551SL Screw 1
  26. 50357AS Nipper Spring 1
  27. 50357Y Nipper Spring Plate 1
  28. 50366G Thread Guide 1
  29. 50357V Nipper Plate 1
  30. 605A Screw, for needle thread guide 2
  31. C50044E Needle Thread Guide 1
  32. SS7120710SP Screw, for strike-off 1
  33. 50663 Needle Thread Strike-Off Eyelet 1

Union Special FS311S13 - THREAD GUIDE - 1

text_image TORQUE: 14-16in.1bs. (1.6-1.8Nm) 20 21 22 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 3 2 11

TENSION RELEASE & THREAD TENSION

Ref.Amt.
No.Part No.DescriptionReq.
  1. 50392Z Tension Needle Lever Assembly 1
  2. 660-283A Retainer Washer 1
  3. SS4120915SP Screw, for tension assembly 2
  4. 50692B Two Thread Tension Assembly 1
  5. 57892K Thread Tension Eyelet 2
  6. 56392G Tension Post 2
  7. B3120352000 Tension Disc Felt 2
  8. 666-330 Disc Felt 4
  9. B3126012000 Tension Disc 4
  10. B3120704000 Tension Disc Felt 2
  11. 56392H Spring Shield 2
  12. 11550209 Spring, needle (green) 3
  13. B3103804000 Spring, spreader (blue) 1
  14. B3121804000 Spring, looper (plain) 1
  15. B3112704000 Ferrule, tension spring 2
  16. 50692G Knob, needle (green) 3
  17. 56392R Knob, looper (plain) 1
  18. 50392W Tension Disc Separator 1
  19. 50392AV Guide, for tension disc separator 2
  20. SS7090520SP Screw, for guide 2
  21. 50392X Tension Bracket 1
  22. 57865 Lead-In Thread Guide 2
  23. NS6110420SP Nut 2
  24. 50392BC Tension Release Lever Shaft Connection....1
  25. 22875N Stop Screw 1
  26. SS7121410TP Binder Screw 1

Union Special FS311S13 - TENSION RELEASE & THREAD TENSION - 1

text_image 1 2 3 4 5 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 Loctite: Union Special No. CE66 (2 screws)

PRESSER FOOT LIFT

Ref.Amt.
No.Part No.DescriptionReq.
  1. 11071602 Adjusting Screw, for spring 1
  2. 11071701 Locking Nut 1
  3. 660-1014 "O" Ring 1
  4. C50056B Spring Rod 1
  5. 50357AA Spring, for presser bar, for S01, S02 machine styles .... 1
  6. 50357AP Spring, for presser bar, for differential feed machines .... 1
  7. C50056J Lock Nut 1
  8. 50643B Screw 1
  9. 50335AF Presser Bar, for S01, S02 machine styles.... 1
  10. 50643A Pressr Bar 1
  11. SS6110610TP Screw, for guide plate 2
  12. 50335AG Guide Plate, for presser bar 1
  13. 50335AH Presser Bar Guide 1
  14. SS8110422TP Set Screw 2
  15. 660-739 Oil Seal 1
  16. RE0500000K0 E Ring, for pin 1
  17. 50381F Lever, for lifter, front 1
  18. SD0790303SP Screw, for wire connector 1
  19. CE49 Loctite Adhesive, (not shown), for screw
  20. 29476TK Rear Lifter Lever Assembly 1
  21. SD0790303SP Screw, for lifter lever assembly 1
  22. 50355AR Wire Connector 1
  23. 50381G Lifter Lever, rear 1
  24. SS9151740CP Hex Screw 1
  25. 29476TT Stop Assembly 1
  26. SS6151920SP Screw, for adjusting stopper 1
  27. NS6150310SP Hex Nut 2
  28. 50332V Stopper, for lifter lever 1
  29. SS6153040SP Screw, for adjusting stopper 1
  30. SS4121215SP Screw, for stopper 2
  31. CE49 Loctite Adhesive, (not shown), for screw
  32. 50381 Spring, for lifter lever 1
  33. RO068190100 "O" Ring 1
  34. 50381B Lifter Lever Assembly 1

Union Special FS311S13 - PRESSER FOOT LIFT - 1

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

LOWER MAIN SHAFT

Ref.Amt.
No.Part No.DescriptionReq.

  1. SS7660520SP Shoulder Screw, for lower main shaft, right 1

  2. 660-1062 Spring Washer 1

  3. 50374 Spacer, for pulley assembly 1

  4. 50321G Pulley Assembly 1

  5. SS8661012TP Set Screw 2

  6. 50342AX Sprocket, for lower main shaft 1

  7. SS8660612TP Screw 2

  8. 50342BS Timing Belt 1

  9. 50335AK Retaining Ring, for ball bearing 1

  10. 29476UH Mainshaft Assembly, lower, right 1

  11. 50322AL Ball Bearing, for lower main shaft 1

  12. 50335BB Retaining Ring 1

  13. 50322AG Lower Main Shaft, right 1

  14. 50333A Coupling, for lower main shafts 1

  15. SS8660612TP Screw 4

  16. 660-934 Oil Seal 1

  17. 50622D Lower Main Shaft, left for plain feed.... 1

17A. 50622E Lower Main Shaft, left for differential feed 1

  1. SS8660410SP Screw 2

Union Special FS311S13 - LOWER MAIN SHAFT - 1

text_image CONNECT 50393BU 32 14 15 16 17 18 19 20 20 21 22 23 31 32 23 24 24 25 26 26 27 28 29 29 30 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 TO: CONNECTOR (B) OF OIL PUMP 50393HN TO: CONNECTOR (A) OF OIL PUMP 50393HN TO: CONNECTOR (C) OF OIL PUMP 50393HN TO: SUCTION OIL TUBE 50393HL (MOUNTS TO LOWER BED CASTING)

LUBRICATION, OIL TUBING & OIL PUMP

Ref.

No. Part No.

Description

Amt.

Req.

  1. 50393HN Oil Pump Assembly, 2-stage 1
  2. SS8660612TP Screw 2
  3. 50332S Spring, for plunger.... 2
  4. 34393D Plunger.... 2
  5. 50393EX Collar, for oil pump 1
  6. SS8660612TP Screw 2
  7. 50393GB Oil Pump Housing, 2 Stage.... 1
  8. 50393GD Oil Pump Housing, 2 Stage.... 1
  9. SS4091015SP Screw, for oil filter cover.... 3
  10. 50393FR Cover, for oil filter.... 1
  11. 50384 "O" Ring, for oil filter cover.... 1
  12. 11843208 Oil Filter.... 1
  13. 50393FV Oil Tube, for supply (1) 1
  14. 29476US Oil Supply Assembly, upper 1
  15. SS7120710SP Screw, for front upper tube 2
  16. NS6110310SP Nut 1
  17. SQ1110402MZ Fitting 1
  18. 50393KH Tube Retaining, spring 1
  19. 50393-27 Oil Tube 1
  20. 50393KM Tube Retaining, spring 3
  21. 50393-447 Oil Tube 1
  22. 50393-140 Oil Tube 1
  23. 29476UT Oil Supply Assembly, lower 1
  24. 50393KH Tube Retaining, spring 2
  25. 50393-70 Oil Tube 1
  26. 50393KM Tube Retaining, spring 5
  27. 13765607 "T" Connector 2
  28. 50393-140 Oil Tube 1
  29. 50393-40 Oil Tube 1
  30. 50393-170 Oil Tube 1
  31. 50393KF Oil Tube 1
  32. 50393KM Tube Retaining, spring 3
  33. 50393HR Plug, for feed chamber 1
  34. 50393HL Oil Tube, for suction 1
  35. 50393FS Oil Tube Holder 1
  36. 998-358F Plastic Clip 1
  37. SS4090815SP Screw, for oil tube holder 1
  38. 50393HK Felt 1
  39. SS6151812TP Screw, for oil pan 6
  40. WS0631510KP Spring Washer 6
  41. 22571E Screw, for oil drain plug 1
  42. RM2871B Cable Tie 2
  43. 50393EB Oil Pan 1
  44. 50384A "O" Ring 1
  45. 50393FT Oil Tube, for suction 1
  46. 50393HJ Oil Tube, for suction 1

Union Special FS311S13 - LUBRICATION, OIL TUBING & OIL PUMP - 1

text_image TORQUE: 28-30in.1bs. (3.2-3.4Nm) TORQUE: 32-34in.1bs. (3.6-3.9Nm) NOTE: Capped End Is Down Three Bond: Union Special No. CE63 (bottom screw only)

LOOPER DRIVE

Ref.

No. Part No.

Description

Amt.

Req.

  1. 50313 Looper Holder 1
  2. 22652B10 Screw, for looper holder 1
  3. 22565 Screw, for looper holder 1
  4. 50309F Looper 1
  5. SS7120910SP Screw, for bearing housing 3
  6. CE63 Three Bond Adhesive, (not shown), for screw
  7. 660-893 Oil Seal, looper 1
  8. 50344AM Bearing Housing Assembly, for looper drive 1
  9. 660-455 "O" Ring, for bearing housing assembly 1
  10. 50313J Looper Rocker Assembly 1
  11. SS7120910SP Screw, for retaining plate 2
  12. 50314F Eccentric Retaining Plate 1
  13. 50314E Looper Avoid Adjusting Eccentric 1
  14. 50642 Looper Drive Assembly 1
  15. 22653J8 Screw 1
  16. 667J33 Crank Pin 1
  17. 660-979 "O" Ring 2
  18. 50342BJ Sprocket, for looper driven 1
  19. SS8660612TP Screw 2
  20. 50342BK Sprocket, for looper drive 1
  21. SS8660612TP Screw 2
  22. 50342BP Looper Drive Belt 1

Union Special FS311S13 - LOOPER DRIVE - 1

text_image TORQUE: 14-16in.1bs. (1.6-1.8Nm) 1 2 3 4 5 6 7 8 9 10 11 12 13 14

NEEDLE GUARD

Ref.Amt.
No.Part No.DescriptionReq.
  1. 29476UJ Rear Needle Guard Drive Assembly 1
  2. 50373DA Needle Guard Eccentric 1
  3. SS8110422TP Screw, for needle guard eccentric 2
  4. 50368W Connecting Rod Assembly, for needle guard.... 1
  5. 50368T Pivot Link 1
  6. SS8110422TP Screw 2
  7. 50368E Washer 2
  8. 50368A Pivot Pin 1
  9. 50368V Shaft, for needle guard 1
  10. 50354L Coupling, for needle guard 1
  11. SS8110422TP Screw 2
  12. 50325AF Holder, for needle guard 1
  13. 50325AE Needle Guard, rear 1
  14. SS9090420TP Screw, for rear needle guard 1

Union Special FS311S13 - NEEDLE GUARD - 1

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

Union Special FS311S13 - NEEDLE GUARD - 2

text_image 25 27 26 28 29 30 24

LOOPER THREAD TAKE-UP

Ref.

No. Part No.

Description

Amt.

Req.

  1. 50657 Cast-Off Plate Assembly 1
  2. 51959D Knurled Nut 1
  3. 51959K Tension Spring 1
  4. 51959L Roll Pin 1
  5. 51959B Tension Disc 2
  6. 51492 Tension Post 1
  7. 52958D Take-up Eyelet 3
  8. SS7060310SP Screw 4
  9. 50304H Strike-Off Wire 1
  10. SS9080410SP Screw 1
  11. 41358 Washer 2
  12. 50304L Retaining Finger 1
  13. SS7080520SP Screw 2
  14. 50383E Mounting Bracket 1
  15. 50357W Cast-Off Plate 1
  16. SS9111010SP Screw, for collar bracket 1
  17. SS6110610TP Screw, for cast-off holder 1
  18. 29476UK Cast-Off Plate Holder Assembly 1
  19. SS7092110TP Screw, for collar bracket 1
  20. 50383F Take-up Collar Bracket 1
  21. 50304K Cast-Off Plate Holder 1
  22. WZ0640200KP Washer 1
  23. SD0630275SP Shoulder Screw, for cast-off plate holder 1
  24. 50623 Take-up Assembly 1
  25. 22894C Set Screw 2
  26. 50323B Take-up Hub 1
  27. 22-348 Pin 2
  28. 50377R Spacer 1
  29. 50323H Disc, for take-up 2
  30. 77B Screw, for take-up disc 2

Union Special FS311S13 - LOOPER THREAD TAKE-UP - 1

text_image TORQUE: 32-34in.1bs. (3.6-3.9Nm)

Union Special FS311S13 - LOOPER THREAD TAKE-UP - 2

text_image Technical diagram of a mechanical assembly with numbered components and alignment lines

FEED DRIVE MECHANISM

FOR PLAIN FEED

Ref.Amt.
No.Part No.DescriptionReq.
  1. 18-1432 Screw.... 1
  2. 50334BD Hex Eccentric Stud 1
  3. 50334AX Drive Fork Assembly, right 1
  4. 50634 Feed Bar Assembly 1
  5. 50334A Plain Feed Bar Guide 1
  6. 50634E Feed Dog Holder 1
  7. 22637P24 Screw 1
  8. 50640-18 Feed Eccentric, main 1
  9. SS8660612TP Screw 2
  10. SS7090530SP Screw 10
  11. 50334Y Oil Shield 1
  12. 50334W Oil Scraper 1
  13. 50634C Feed Bar Seal 1
  14. 50637A Guide Plate, left, rear 1
  15. 50335BA Guide Plate, right, rear 1
  16. 50634D Feed Bar Seal 1
  17. 50637 Guide Plate, front 1

Union Special FS311S13 - FOR PLAIN FEED - 1

text_image TORQUE: 32-34in, Ibs. (13.6-3.9Nm) TORQUE: 32-34in, Ibs. (13.6-3.9Nm)

FEED DRIVE MECHANISM

FOR DIFFERENTIAL FEED

Ref.Amt.
No.Part No.Description .Req.
  1. 18-1432 Screw.... 2
  2. 50334BD Hex Eccentric Stud 2
  3. 50334AW Drive Fork Assembly 1
  4. 50334BE Feed Bar Assembly 1
  5. 50334AX Drive Fork Assembly, right 1
  6. 50340D Feed Eccentric, main 1
  7. SS8660612TP Screw 2
  8. SS7090530SP Screw 10
  9. 50334Y Oil Shield 1
  10. 50334V Oil Scraper 1
  11. 50334BH Feed Bar Seal 1
  12. 50335AM Guide Plate, left, rear 1
  13. 50335BA Guide Plate, right, rear 1
  14. 50334J Feed Bar Seal 1
  15. 50335AN Guide Plate, front 1
  16. RO681190100 "O" Ring 1
  17. 50337J Stem, for differential feed lever 1
  18. SS4121215SP Screw, for stem 1
  19. 29476UM Differential Feed Lever Assembly 1
  20. 50337H Differential Feed Lever 1
  21. 50337U Stop 2
  22. 50337K Plate, for differential feed lever 1
  23. SS7090610SP Screw 2
  24. B1647704000A Knob, for differential feed lever 1
  25. 50387 Screw 1
  26. SS7090610SP Screw 2
  27. 50337S Collar 1
  28. SS8110422TP Screw 2
  29. 50337L Coupling, for differential feed lever 1
  30. SS6110650TP Screw 2
  31. 50337R Collar, for differential feed lever 1
  32. SS8090710SP Screw 1
  33. SS6091022TP Screw 1
  34. SP0550271TP Screw, for spring 1
  35. 50337M Spring, for differential feed lever 1
  36. 50340E Feed Eccentric, differential 1
  37. SS8660612TP Screw 2

Union Special FS311S13 - FOR DIFFERENTIAL FEED - 1

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

FEED DRIVE MECHANISM

FOR PLAIN FEED

Ref.

No. Part No.

Description

Amt.

Req.

  1. TA075404RO Plug, for eccentric shaft 1
  2. 22591A Screw, for eccentric shaft 1
  3. 50334BC Eccentric Shaft 1
  4. 50674 Washer, for eccentric shaft 1
  5. 50334BB Collar, for eccentric shaft 1
  6. SS8110422TP Screw, for collar 2
  7. 50337T Collar, for eccentric shaft 1
  8. SS8110422TP Screw, for collar 2
  9. 661-96 Spring Washer 1
  10. 660-969 "O" Ring, for bushing 1
  11. SS8661012TP Screw, for bushing 1
  12. 35036F Bushing, for stitch adjusting shaft 1
  13. 660-220 "O" Ring, for stitch adjusting shaft 1
  14. 35036AZ Brake Pad 1
  15. 50634G Stitch Adjusting Shaft Assembly 1
  16. 50335D Collar 2
  17. 22894P Screw 4
  18. 29476UF Stitch Length Adjusting Rod Assembly 1
  19. 660-980 "O" Ring, stitch control shaft 1
  20. 50322AR Shaft, for stitch control 1
  21. 660-206 "O" Ring, for stitch control shaft 1
  22. 50336Y Stitch Knob, indicator 1
  23. SS8110422TP Screw 1
  24. 50335 Spring Retainer 1
  25. 22714C Screw, for spring retainer 1
  26. 50355 Spring 1
  27. 50335A Spring Holder 1
  28. 50336S Stitch Control Lever 1
  29. 661-35 Pin 1
  30. 22596H Screw 2

Union Special FS311S13 - FOR PLAIN FEED - 1

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

FEED DRIVE MECHANISM

FOR DIFFERENTIAL FEED

Ref.

No. Part No.

Description

Amt.

Req.

  1. 22591A Screw, for eccentric shaft .... 1
  2. 50334BC Eccentric Shaft 1
  3. 50674 Washer, for eccentric shaft 1
  4. 50334BB Collar, for eccentric shaft 1
  5. SS8110422TP Screw, for collar 2
  6. 50337T Collar, for eccentric shaft 1
  7. SS8110422TP Screw, for collar 2
  8. 661-96 Spring Washer 1
  9. 660-969 "O" Ring, for bushing 1
  10. SS8661012TP Screw, for bushing 2
  11. 35036F Bushing, for stitch adjusting shaft 2
  12. 660-220 "O" Ring, for stitch adjusting shaft 1
  13. 35036AZ Brake Pad 2
  14. 50634G Stitch Adjusting Shaft Assembly 2
  15. 50335D Collar 2
  16. 22894P Screw 4
  17. 29476UF Stitch Length Adjusting Rod Assembly 1
  18. 660-980 "O" Ring, stitch control shaft 1
  19. 50322AR Shaft, for stitch control 1
  20. 660-206 "O" Ring, for stitch control shaft 1
  21. 50336Y Stitch Knob, indicator 1
  22. SS8110422TP Screw 1
  23. 50335 Spring Retainer 1
  24. 22714C Screw, for spring retainer 1
  25. 50355 Spring 1
  26. 50335A Spring Holder 1
  27. 50336S Stitch Control Lever 1
  28. 661-35 Pin 1
  29. 22596H Screw 2

Union Special FS311S13 - FOR DIFFERENTIAL FEED - 1

text_image Three Bond: Union Special No. CE63 (top & bottom screws only)

COVERS, LOWER BED

Ref.Amt.
No.Part No.DescriptionReq.
  1. 18-1448 Screw 11
  2. 50601F Cloth Plate, left 1
  3. 50601E Cloth Plate, right 1
  4. 50303B Acoustic Pad 1
  5. SS6121212TP Screw, for cover 6
  6. 50382CP Cover, for feed chamber 1
  7. 50382CS Gasket 1
  8. 22839C Screw, for cover 3
  9. 50382JR Cover, for dry chamber 1
  10. 50384K Gasket, for dry chamber cover 1
  11. SS7150740SP Screw 2
  12. 22587N Screw 2
  13. 35036AE Ferrule, Locating 2
  14. 50380D Throat Plate Support, complete 1
  15. 51280K Pin 1
  16. 660-939 Rubber Bumper, for Throat Plate Support 1
  17. C067D Cork 2
  18. 22517 Screw, for bed 2
  19. 50382CR Gasket 1
  20. 50382CL Cover, rear, for feed chamber, 1
  21. SS4120615SP Screw, for cover 2
  22. CE63 Three Bond Adhesive, (not shown), for screw

Union Special FS311S13 - COVERS, LOWER BED - 1

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

COVERS, LOWER BED

FOR PLAIN FEED

Ref.

No. Part No.

Description

Amt.

Req.

  1. 50393HB Plug, for bed 2
  2. 50684A Quad Ring, for left end cover 1
  3. 50682B Left End Cover 1
  4. SS4151415SP Screw 4
  5. 50393HA Plug 1
  6. WO3 Oil Wick, for needle guard 1
  7. 22841U Machine Support Stud 4
  8. 50383G Gasket, for chamber cover 1
  9. 50382CG Dry Chamber Cover 1
  10. SS7090850SP Screw 8
  11. 50378S Hinge 2
  12. SS9110543CP Screw 4
  13. 660-1020 Rubber Bumper 2
  14. SS6120930TP Screw 4
  15. 20 Washer 2
  16. 50382T Stop, for front cover 2
  17. 50393W Rubber Bumper 2
  18. 22519J Screw 2
  19. 50682D Swing Down Cover 1
  20. 22729D Screw 2
  21. 50363CH Lever 1
  22. SS4121015SP Screw 4
  23. 50393HU Plug, right end, non-synchronizer 1
  24. 50382CJ Cover, for drive belt 1
  25. 50332A Latch Spring 2
  26. 39250J Nut 2
  27. 22513D Screw 2
  28. 35569J Nut 1
  29. 50332B Support Block 1
  30. SS7120710SP Screw 2
  31. 22799AH Spring Latch Stud 2

Union Special FS311S13 - FOR PLAIN FEED - 1

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

COVERS, LOWER BED

FOR DIFFERENTIAL FEED

Ref.

No. Part No. Description

Amt.

Req.

  1. 50393HB Plug, for bed 2
  2. 50382CM Quad Ring, for left end cover 1
  3. 50382CH Left End Cover 1
  4. SS4151415SP Screw 4
  5. 50393HA Plug 1
  6. WO3 Oil Wick, for needle guard 1
  7. 22841U Machine Support Stud 4
  8. 50383G Gasket, for chamber cover 1
  9. 50382CG Dry Chamber Cover 1
  10. SS7090850SP Screw 8
  11. 50378S Hinge 2
  12. SS9110543CP Screw 4
  13. 660-1020 Rubber Bumper 2
  14. SS6120930TP Screw 4
  15. 20 Washer 2
  16. 50382T Stop, for front cover 2
  17. 50393W Rubber Bumper 2
  18. 22519J Screw 2
  19. 50682D Swing Down Cover 1
  20. 22729D Screw 2
  21. 50363CH Lever 1
  22. SS4121015SP Screw 4
  23. 50393HU Plug, right end, non-synchronizer .... 1
  24. 50382CJ Cover, for drive belt 1
  25. 50332A Latch Spring 2
  26. 39250J Nut 2
  27. 22513D Screw 2
  28. 35569J Nut 1
  29. 50332B Support Block 1
  30. SS7120710SP Screw 2
  31. 22799AH Spring Latch Stud 2

Union Special FS311S13 - FOR DIFFERENTIAL FEED - 1

SEWING PARTS

Ref. No.Part No.DescriptionAmt. Req.
1.G51320Presser Foot Assembly, for sewing comb., (see chart)1
2.G51330CPresser Foot Shank1
3.91Screw1
4.1741APin1
5.1741BKnife1
6.51390Spring1
7.G21695PFinger Guard1
8.41358Washer1
9.22768Screw1
10.1025104Pin1
11.G51330BChaining Section1
12.G51330APresser Foot Bottom1
13.56320HPresser Foot Assembly, for sewing comb., (see chart)1
14.604Screw1
15.52930ACChain Cutting Knife1
16.51430FNut1
17.56330AUWasher1
18.41071GLock Nut1
19.56330ADSpring1
20.56330AHNut1
21.56330AKPresser Foot Yoke1
22.22785Set Screw1
23.22560BScrew1
24.88Screw1
25.56330ANPresser Foot Link1
26.56330APBushing1
27.22799GScrew1
28.56330ALPresser Foot Bottom1
29.56330AMYielding Section1
30.56330ARSpring, for yielding section1
31.604Screw1
32.73AScrew1
33.56330AXSpring, tilting1
34.56330AJPin1
35.56330AGScrew1
36.56330AFScrew1
37.C50020Presser Foot Assembly, for sewing comb., (see chart)1
38.604Screw1
39.52930ACKnife, chain cutter1
40.22562Screw1
41.C50030Shank, presser foot1
42.22784MScrew1
43.C50031CGuard, finger1
44.C50030APresser Foot Bottom1
45.C50030DSpring2
46.C50030ABYielding Section1
47.C50030CSpring2
48.22799BScrew, hinge1
49.50618Needle Head1
50.SS6080360SPScrew1
51.22570Screw, for throat plate2
52.- - - - - -Throat Plate, for sewing comb., (see chart)2
53.- - - - - -Main Feed Dog, for differential feed, (see chart)2
54.18-677Screw, for main feed dog2
55.- - - - - -Differential Feed Dog, for sewing comb., (see chart)2
56.SS7091110TPScrew, for differential feed dog2
57.- - - - - -Main Feed Dog, for plain feed, (see chart)2
SEWING COMB.MODELNEEDLE HEADPRESSER FOOT ASSEMBLYTHROAT PLATEFEED DOG MAINFEED DOG DIFFERENTIAL
FS01-1FS311S01-1M50618GS132050624AC5000SG
FS02-2FS311S02-1M56320R
FS11-1FS311S11-1M56320F50624C5000SF
FS12-1FS311S12-1M56320H
FS13-1FS311S13-1M56320E50624B56305C
FS14-1FS311S14-1MC5002050624C5000SF
FS21-1FS312S21-1MC500205060550626

Union Special FS311S13 - FOR DIFFERENTIAL FEED - 2

Union Special FS311S13 - FOR DIFFERENTIAL FEED - 3

natural_image Technical line drawing of a mechanical assembly with mounting brackets and internal cavities (no text or symbols)

Union Special FS311S13 - FOR DIFFERENTIAL FEED - 4

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

TABLING AND NEEDLE DIPPER ASSEMBLY (EXTRA SEND CHARGE)

Ref.Amt.
No.Part No.DescriptionReq.
  1. 21371AAE48 Table Board, for differential feed machines....
  2. 21317AAH48 Table Board, for plain feed machines .... 1
  3. 29476RZ Needle Dipper Assembly 1
  4. PS0160042KH Roll Pin 2
  5. 50393JD Needle Dipper Cover 1
  6. 50393GS Wire, for needle dipper 1
  7. CQ202000000 Oil Wick, for needle dipper 1
  8. 50393GK Felt, for needle dipper 1
  9. 50393JC Needle Dipper 1
  10. SS4090615SP Screw, for needle dipper 2
  11. 50393GP Silicone Oil Tank Holder 1
  12. 50393GG Plug 1
  13. WP0531000SD Washer 1
  14. SS4120615SP Screw, for needle dipper holder 1

Union Special FS311S13 - FOR DIFFERENTIAL FEED - 5

text_image Technical diagram of a mechanical device with labeled components and parts, including a lever mechanism, tools, and bottles.

ACCESSORIES

Ref.Amt.
No.Part No.DescriptionReq.
  1. 21101W2 Thread Stand 1
  2. 35095B Isolator 4
  3. G21201 Screw Driver, for needle head 1
  4. 660-240 Thread Tweezer 1
  5. 660-264 S-Hook 2
  6. 421D34 Chain 1
  7. 128GBS075/029 Needles, (package of 10).... 1
  8. 28604R Oil, (1 pint) 2

NUMERICAL INDEX OF PARTS

Part No. Page No.Part No. Page No.Part No. Page No.Part No. Page No.Part No. Page No.Part No. Page No.
1025104....5535036AE....4950336Y....45, 4750382CL....4950393JW....19
11071602....2735036AZ....45, 4750337H....4350382CM....5350393JZ....19
11071701....2735036BS....1750337J....4350382CP....4950393KF....33
11550209....2535036F....45, 4750337K....4350382CR....4950393KH....33
11843208....3335095B....5950337L....4350382CS....4950393KM....33
12124202....2335569J....51, 5350337M....4350382FW....2950393W....51, 53
128GBS075/029....5939250J....51, 5350337R....4350382FX....2950601E....49
13765607....33402....2550337S....4350382FY....2950601F....49
158B....2341071G....5550337T....45, 4750382FZ....2950618....55
1741A....5541358....39, 5550337U....4350382GB....2950622D....31
1741B....55421D34....5950338....1950382GM....2950622E....31
18-1432....41, 4350303B....4950338A....1950382JR....4950623....39
18-1448....4950304H....3950340D....4350382T....51, 5350634....41
18-677....5550304K....3950340E....4350383AE....2950634C....41
20....51, 5350304L....3950342AX....3150383E....3950634D....41
21101W2....5950309F....3550342BE....2150383F....3950634E....41
21317AAH48....5750313....3550342BJ....3550383G....51, 5350634G....45, 47
21371AAE48....5750313J....3550342BK....3550384A....3350637....41
22-348....3950314E....3550342BP....3550384K....4950637A....41
22513D....51, 5350314F....3550342BS....3150384L....2950640-18....41
22517....4950317B....1950344AM....3550387....4350642....35
22517B....2950317C....2950344BC....1750391....2150643A....27
22519J....51, 5350321F....2150344BE....1750392AB....1750643B....27
22560B....5550321G....3150344BF....1750392AE....2350654....17
22562....5550322AF....2150344BU....1750392AV....2550654A....17
22565....3550322AG....3150344E....1750392BC....2550657....39
22570....5550322AL....3150345W....1950392S....2350663....23
22571E....3350322AR....45, 4750351A....1950392W....2550674....45, 47
22571L....1750323B....3950352....1950392X....2550682B....51
22587N....4950323H....3950354F....1950392Z....2550682D....51, 53
22591A....45, 4750323P....1950354L....3750393-140....3350683A....23
22596H....45, 4750325AE....3750355....45, 4750393-170....3350684A....51
22637P24....4150325AF....3750355AM....1950393-27....3350692B....25
22652B10....3550330CZ....1750355AN....1950393-40....3350692G....25
22653J8....3550332A....51, 5350355AR....2750393-447....3350692H....23
22714C....45, 4750332B....51, 5350357AA....2750393-70....3350696....29
22729D....51, 5350332S....3350357AP....2750393EB....3351280K....49
22768....5550332U....1750357AR....2350393EU....2951390....55
22784M....5550332V....2750357AS....2350393EW....2951430F....55
22785....5550333A....3150357V....2350393EX....3351492....39
22799AH....51, 5350334A....4150357W....3950393EY....1751959B....39
22799B....5550334AW....4350357Y....2350393FR....3351959D....39
22799G....5550334AX....41, 4350358X....1950393FS....3351959K....39
22837....2350334BB....45, 4750363CH....51, 5350393FT....3351959L....39
22839C....4950334BC....45, 4750366....2350393FU....1752930AC....55
22841U....51, 5350334BD....41, 4350366A....2350393FV....3352958D....39
22875N....2550334BE....4350366G....2350393GB....3356320H....55
22894C....3950334BH....4350368A....3750393GD....3356330AD....55
22894P....45, 4750334J....4350368E....3750393GE....1756330AF....55
258A....3350334V....4350368T....3750393GG....5756330AG....55
28604R....5950334W....4150368V....3750393GK....5756330AH....55
29476RZ....5750334Y....41, 4350368W....3750393GP....5756330AJ....55
29476TC....1950335....45, 4750373DA....3750393GS....5756330AK....55
29476TG....2350335A....45, 4750374....3150393HA....51, 5356330AL....55
29476TK....2750335AF....2750377R....3950393HB....29, 51, 5356330AM....55
29476TT....2750335AG....2750378S....51, 5350393HH....2356330AN....55
29476UF....45, 4750335AH....2750380D....4950393HJ....3356330AP....55
29476UH....3150335AK....3150381....2750393HK....3356330AR....55
29476UJ....3750335AM....4350381B....2750393HL....3356330AU....55
29476UK....3950335AN....4350381E....1750393HN....3356330AX....55
29476UM....4350335BA....41, 4350381F....2750393HR....3356358B....23
29476US....3350335BB....3150381G....2750393HU....51, 5356358C....23
29476UT....3350335BD....2150382CG....51, 5350393JC....5756358D....23
29476VN....1950335D....45, 4750382CH....5350393JD....5756392G....25
34393D....3350336S....45, 4750382CJ....51, 5350393JP....1956392H....25

NUMERICAL INDEX OF PARTS

Part No. Page No. Part No. Page No. Part No. Page No.

56392R....25G21201....59SS7121410TP....25
57865....25G21695P....55SS7150740SP....49
57892K....25G51320....55SS7660520SP....21, 31
604....55G51330A....55SS7681410TP....21
605A....23G51330B....55SS8090710SP....43
652C16....29G51330C....55SS8110422TP....19, 27,
660-1014....27LA452....29SS8110422TP....37, 43,
660-1020....51, 53NS6110310SP....33SS8110422TP....45, 47
660-1043....21NS6110420SP....25SS8660410SP....31
660-1062....31NS6150310SP....27SS8660612TP....21, 31,
660-1087....21NS6620320SP....29SS8660612TP....33, 35,
660-206....45, 47PS0160042KH....59SS8660612TP....41, 43
660-220....45, 47PS0400142KH....17SS8661012TP....21, 31,
660-240....59RE0500000KO....27SS8661012TP....45, 47
660-264....59RM2871B....33SS8681412TP....21
660-283A....25RO068190100....27SS9080410SP....39
660-455....35RO681190100....43SS9090420TP....37
660-739....27SD0380551SL....23SS9110543CP....51, 53
660-893....35SD0630275SP....39SS9111010SP....39
660-934....31SD0640323TP....29SS9151740CP....27
660-939....49SD0790303SP....27TA075404RO....45
660-969....45, 47SP0550271TP....43TA1050504RO....29
660-979....35SQ1110401MZ....17TA1100604RO....29
660-980....45, 47SQ1110402MZ....33WO3....51, 53
661-259B....19SS1110640SL....29WP0531000SD....57
661-261....21SS1121010SP....23WS0410002KP....23
661-262....21SS4080620TP....19WS0631510KP....33
661-35....45, 47SS4090615SP....57WZ0640200KP....39
661-96....45, 47SS4090815SP....23, 33WZ0641510KP....29
662-212....29SS4091015SP....33
666-328....19SS4120615SP....29,
666-330....25SS4120615SP....49, 57
667J33....35SS4120915SP....23,
73A....55SS4120915SP....25, 29
77B....39SS4121015SP....51, 53
88....55SS4121215SP....27,
91....55SS4121215SP....29, 43
98A....23SS4121615SP....29
99682XC....29SS4151415SP....51, 53
99682XCB....29SS6080360SP....55
998-358F....33SS6090440SP....19
B1647704000A....43SS6090620SP....19
B3103804000....25SS6091022TP....43
B3112704000....25SS6110610TP....27, 39
B3120352000....25SS6110650TP....43
B3120704000....25SS6120930TP....51, 53
B3121804000....25SS6121010SP....19
B3126012000....25SS6121212TP....49
B3530555000....29SS6151812TP....33
C067D....49SS6151920SP....27
C50020....55SS6153040SP....27
C50030....55SS7060310SP....39
C50030A....55SS7080520SP....19, 39
C50030AB....55SS7090520SP....25
C50030C....55SS7090530SP....41, 43
C50030D....55SS7090610SP....23, 43
C50031C....55SS7090850SP....51, 53
C50044E....23SS7090910TP....23
C50056B....27SS7091110TP....55
C50056J....27SS7092110TP....39
CE27....19SS7111120TP....19, 21
CE49....27SS7120640SP....23, 29
CE59....19SS7120710SP....23, 33,
CE63....19, 35, 49SS7120710SP....51, 53
CQ202000000....57SS7120910SP....35

NOTES

NOTES

Union Special FS311S13 - NUMERICAL INDEX OF PARTS - 1

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WORLDWIDE SALES AND SERVICE

Union Special Corporation maintains sales and service facilities throughout the world. These offices will aid you in the selection of the right sewing equipment for your particular operation. Union Special Corporation representatives and service technicians are factory trained and are able to serve your needs promptly and efficiently. Whatever your location, there is a qualified representative to serve you.

Corporate

Office:

One Union Special Plaza

Huntley, IL 60142

Phone: 847·669·5101

Fax: 847·669·4454

European Distribution Center:

Union Special GmbH

Raiffeisenstrasse 3

D-71696 Möglingen, Germany

Tel: 49•07141•247•0

Fax: 49·07141·247·100

Brussels, Belgium

Charlotte, N.C.

El Paso, TX

Hong Kong, China

Huntley, IL

Leicester, England

Lille, France

Miami, FL

Milan, Italy

Möglingen, Germany

Montreal, Quebec

Osaka, Japan

Santa Fe Springs, CA

Other Representatives throughout

all parts of the world.

Union Special FS311S13 - NUMERICAL INDEX OF PARTS - 2
Finest Quality

Union Special® INDUSTRIAL SEWING EQUIPMENT

INDUSTRIAL SEWING EQUIPMENT

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Product information

Brand : Union Special

Model : FS311S13

Category : Industrial sewing machine