hobbylock 4860 - Sewing machine PFAFF - Free user manual and instructions

USER MANUAL hobbylock 4860 PFAFF

Exterior view of a PFAFF baby washing machine (hobbylock 4860) with control panel and mechanical components (no readable text beyond branding)

Instruction manual

You will find the contents on page 4 and 5

Safety rules

For the United Kingdom only

The leads must under no circumstances be connected to the safety-lead terminal I nor to a plug with three pins.
The wires in the mains lead are coloured according to the following code:
Blue: Neutral
Brown:Live
As the colours of the wires in the mains lead of this appearance may not correspond to the colour coding of the terminals in your plug, proceed as follows:
completely replaced. Immediately. Defective mains leads must be plugs be used. They should be disposed of under no circumstances should cut-off mains with the letter L or coloured red. The wire which is coloured brown must be contacted to the terminal which is marked with the letter N or coloured black. The wire which is coloured blue must be con- needed to the terminal which is marked with the letter
Only 3 A spare tuses must be used as appro- ved by ASTA according to BS 1362 and the tuse cover must be marked 3 A or with the corresponding colour code.
The drug must never be used without fuses covers. Spare fuse covers are available from electrical suppliers or the PFAFP agencies.
Please also observe the general safety notes on page 2.

For easier understanding of this instruction manual please fold this or the last page out when reading.

Technical diagram of a drone with numbered parts for identification and assembly reference.

Technical diagram of a mechanical assembly with numbered components for identification

Parts of the hobbylock 4860

(1) Upper thread tension - left
(2) Upper thread tension - right
(3) Handle to carry

(4) Looper thread tension - right
(5) Looper thread tension - left
(6) Display

(7) Window for the stitch length (8) Window for the differential fe (9) Key for speed selection

(10) Program key - left

Cursor key - middle

Mod key (right)

(11) LED needle display A, B (12) Knife guard

(13) Looper cover

(14) Sewing foot (combination foot) (15) Needle plate

(16) Adjusting knob for seam width (17) Detachable work support

(18) Window for the seam width (19) Accessories box

(20) Needle holder

(21) Lever for the sewing foot pressure

(36) Right overedge looper

(37) Converter

(38) Left overedge looper

(39) Automatic looper threader for the left looper
(40) Knob to disengage upper knife
(41) Lever to disengage needle plate

(42) Screw to secure upper knife
(43) Screw to secure lower knife
(44) Lower knife

(45) Upper knife

Important safety instructions

For the United States only

This sewing machine is designed and manufactured for HOUSEHOLD use only. When you use an electric appliance, the following basic safety precautions should always be adhered to: Read all instructions before using this sewing machine.

DANGER To reduce the risk of electric shock:

1. The sewing machine should never be left unattended when plugged in. Always unplug this appliance from the electric outlet immediately after using and before cleaning.
2. Always unplug before relamping. Replace bulb with same type rated 15 Watts.
3. Do not reach for a sewing machine that has fallen into water. Unplug immediately.

4. Do not place or store a sewing machine where it can fall or be pulled into a tub or sink. Do not place in or drop into water or other liquid. WARNING To reduce the risk of burns, fire, electric shock, or injury to persons:

5. Do not allow to be used as a toy. Great care is necessary when this sewing machine is used by or near children.

6. Only use this sewing machine for its intended purpose as described in this manual. Only use attachments recommended by the manufacturer as contained in this manual.
7. Never operate this sewing machine if it has a damaged cord or plug, if it is not working properly, if it has been dropped or damaged, or dropped into water. Return the appliance to the nearest authorized dealer or service center for examination, repair, electrical or mechanical adjustment.

8. Never operate the sewing machine with any air openings blocked. Keep ventilation openings of the sewing machine and foot control free from the accumulation of lint, dust, and loose cloth.

9. Never drop or insert anything into any opening.

10. Do not use out of doors.

11. Do not operate where aerosol (spray) products are being used or where oxygen is being administered.

12. To disconnect, turn all controls to off („0“) position, then remove plug from socket.

13. Never operate on a soft surface such as a bed or couch where the air openings may be blocked.

14. Do not unplug by pulling on cord. To unplug, hold the plug, not the cord.

15. Keep fingers away from all moving parts. Special care is required around machine needle.

16. Always use the proper needle plate. The wrong plate can cause the needle to break.

17. Do not use bent or blunt needles. Only use needles recommended by the manufacturer.
18. Do not pull or push fabric while stitching. It may deflect the needle, causing it to break.

19. Switch the sewing machine off („0“) when making any adjustments in the needle area, as threading needle, changing needle, threading bobbin, or changing presser foot, etc.

20. Always unplug sewing machine from the electric outlet when removing covers, lubricating, or when making any other user servicing adjustments mentioned in the instruction manual.

21. Hold plug when rewinding into cord reel. Do not allow plug to whip when rewinding. Please also observe the general safety notes on page 2. KEEP THESE INSTRUCTIONS IN A SAFE PLACE

Warning symbol image with exclamation mark inside a triangle

Notes on safety

Notes on safety for domestic sewing

machines according to DIN 57 700, Section 28 or IEC 335, Section 28.

1. The user must exercise adequate caution

This sewing machine is a high-quality elec-

tro-mechanical appliance; it is a

machine for supervised use in the

home. It should be operated in such a

way that it is not exposed to: dust, severe

dampness, direct sunlight, static elec-

tricity, heat-producing objects, corro-

theity, heat-producing of give chemicals or liquids.

To permit adequate ventilation the machine

To permit adequate ventilation, the best to be kept unblocked and used on a

must be kept unblocke firm and even surface.

Treatment

Always make ours not to

Always make sure not to damage your machine by knocking or

damage you

dropping it.

Claring

Cleaning

Housing and display:

To clean the housing, use a dry, clean

and soft cloth which is free of fluff. To

remove any stubborn dirt, use a soft

cloth with alcohol or paraffin.

SCHY WITH GREEN, 51

Please Note!

Never use insecticides or che-

mical products such as petrol (gas) or

thin chemicals to clean the housing.

a) In chemical to a chemical

for any damage caused

for any damage caused.

1. To avoid the risk of electric shock, do not

open the machine. There are no parts

inside the machine which the user can

repair. This the exclusive responsibility

of our qualified service staff.

1. Be sure to use only original PFAFF

parts.

Simple, up-to-date sewing

Congratulations! You have bought a high-quality product that provides unique advantages. Your new hobbylock 4860 can take any material in its stride and will sew, trim and neaten up for you in one operation.

Your PFAFF hobbylock features the very latest in design and technology, and it is just as easy to use as this instruction manual is to follow. If you now take a bit of time to study the instruction manual nothing can go amiss.

It is certainly time well spent, since it is the only way to find out just what your machine can do and put it to full use.

If you have any further questions just ask your PFAFF dealer. He is happy to be of service with any help or advice.

So now let's get started! We wish you many enjoyable hours creating your very own fashion ideas.

Contents	Page
2 thread overlock stitch	39, 46
2 thread overlock	39
2 thread rolled/flat hem	48
3 thread overlock stitch	43, 48
3 thread overlock	39
3 thread rolled/flat hem	48
4 thread overlock stitch	39
Accessories	57 - 68
Accessory box	10
Automatic threader.	15, 16
Bead sewing foot	67
Blindstitch foot	62
Changing the knife	70, 71
Changing the light bulb (sewing light)	72
Changing the needle	27
Changing the needle plate	29
Changing the sewing foot	18
Changing the spool.	19
Cleaning the knife	73
Cleaning the needle plate	72
Converter	44, 45
Correction of the thread tension	40 - 42
Cording foot	66
Detachable work support.	9
Differential feed	24, 25, 26
Disengaging the upper knife	30
Display	34
Elastic tape sewing foot	66
Electrical connection	8, 9
Electronics.	31 - 36
Entering new data	36
Foot control	8
Free arm	9
Gathering foot	65
Gimp thread stitching foot	63
Knob to adjust seam width	23
Lace sewing foot	68
LED needle display	34
Left overedge looper	15, 16
Looper cover	12
Lower knife	73
Main switch	9
Maintenance and malfunction	69 - 75
Needle plates N and R	48
Needle threader	17
Normal accessories.	60, 61
Oiling	73
Overedge needles	18
Practical sewing	37 - 55
Problems when sewing	74, 75
Program chart	50 - 55
Programming language	32
Right overedge looper.	14
Rolled hem	47, 48
Safety instructions	1
Securing the seam	22
Setting the programs	35
Sewing foot chart	60
Sewing foot lever	20
Sewing foot pressure	30
Sewing test	21
Special accessories.	60 - 68
Specifications.	76
Speed pre-selection	33
Spool disc	59
Spool net	59
Spool stands	11
Standard thread tension	38
Stitch length adjusting knob	24
Taping foot	61
Technical part	7 - 30
Thread chart	49
Thread cutter	22
Thread unreeling disc	59
Threading the looper	14 - 16
Threading the needles.	18, 19
Threading the thread guides	13
Upper knife	70
Upper knife lock.	30
Waste box.	12

Black-and-white illustration of a person lying down with arms outstretched (no text or symbols)

Technical part

Electrical connection	page 8, 9
Detachable work support	page 9
Accessory box	page 10
Spool stands	page 11
Waste box / looper cover	page 12
Threading the thread guides and the looper	page 13 – 16
Threader	page 17
Threading the needles	page 18
Changing a spool when the machine is threaded	page 19
Sewing foot lever	page 20
Sewing test / thread cutter	page 22
Seam width adjusting knob	page 23
Stitch length adjusting knob	page 24
Differential feed	page 24 – 26
Changing the needle, sewing foot and needle plate	page 27 – 29
Fixing the upper knife /sewing foot pressure	page 30

Line drawing of a printer with attached cable and plug, showing no text or symbols

Electrical connection
Connect the mains cord between socket (28) of the sewing machine and the wall socket.

Line drawing of a sewing machine with attached cable and power plug (no text or symbols)

Connecting the foot control
Connect the plug of the foot control with the connection socket (30) of the sewing machine. The preset area of the sewing speed (see page 33) is regulated by pressing the pedal.
Do not put anything under the pedal.

Caution:

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Main switch
When the main switch (29) is turned on the sewing light and display (6) is turned up. The machine is now operational.

Line drawing of a sewing machine with a cloth cover and clasp mechanism (no text or symbols)

Line drawing of a hand pressing down on a mechanical component (no text or symbols)

To remove detachable work support / free arm
The free arm is particularly suited to sew tubular goods without any difficulty. To do so pull the detachable work support (17) to the left. Insert the workpiece in the opposite direction.

Line drawing of hands holding a small electronic device with a switch, labeled 'A' (no text or symbols on the device itself)

Line drawing of a hand inserting a component into a car compartment (no text or symbols)

Accessory box

To open:

To open: Open the accessory box (19) by pressing

the two points „A“.

To remove: Grip in the recess beneath the accessory

box (19) and pull out in the direction of

the arrow.

Line drawing of a hand pressing a component on a device (no text or symbols)

To insert:

Push the accessory box (19) into the
appropriate opening until it catches. The
words „PFAFF hobbylock“ must be facing
upwards.

Line drawing of a hand using a sewing machine to adjust or install a component (no text or symbols visible)

Spool stands
Before the spools are attached you must pull the spool stand (27) out fully in the direction of the arrow.

Technical line drawing of a sewing machine with multiple clamps and a hand operating the top section (no text or symbols present)

Extend the telescopic thread guide (23) fully.
To assure optimal thread take-up the two upper telescopic extensions must be turned slowly until you hear the ball stops catch in place. When you have finished sewing push in the telescopic thread guide (23) and push the spool stand (27) in towards the machine, with or without the spools, until it catches in place.

Line drawing of a hand operating a sewing machine with tools and a downward arrow indicating motion (no text or symbols)

Waste box
Insert the tabs on the waste box (46) into the notches on the looper cover (13) and press it down against the looper cover until you can hear it catch in place. To take off reverse this process.

Technical line drawing of a mechanical device with no visible text or symbols

Looper cover
Push the looper cover (13) to the right until it catches in place and then swivel it down. The individual threading paths as well as the converter setting are illustrated in colour on the inside of the looper cover. Note: The power supply is interrupted when the looper cover is opened i.e. it is now not possible to sew with the machine. "Close looper cover" appears in the display. The LEDs also flash the preset speed.

Threading thread guides

Place thread spools on the spool pins (24). For smaller spools we recommend you attach a thread unwinding disc to the spool with the rounded end to the bottom (see the accessories page 66). Thread the thread guides (22) according to colour.

Technical line drawing of a sewing machine with multiple spools and vertical racks (no text or symbols)

With both hands pull the thread through the thread guide (35) and the appropriate thread tension (1, 2, 4, 5). Make sure the thread stays in the slot on the back thread guide (35). Set the thread tension to „N” and thread as indicated.

1. Right overedge looper (pink)
2. Left overedge looper (yellow)
3. Right needle (green)
4. Left needle (blue)

Note: To achieve top sewing results make sure that the thread is pulled between the tension discs when threading.

Line drawing of a mechanical device with three spools and suspended arms (no text or symbols)

Threading the right overedge looper
The slider on the converter (37) must be in the right hand position B (see page 45). Thread the right overedge looper (36) in the order 1 to 9 and draw the thread to the left under the sewing foot. The thread path is marked in pink.

Technical diagram of a sewing machine with numbered components for identification

Technical diagram of a mechanical assembly with numbered components for identification

Threading the left overedge looper

1. The marking on the hand wheel must be in line with the marking on the housing.

2. Thread the left overedge looper (38) in the order 1 to 7. Pull the thread from thread guide 7 through the looper eye 8 and pull it a bit with your left hand.

Line drawing of a mechanical component with no visible text or symbols

Technical diagram of a sewing machine with numbered components for identification

1. Pull the end of the thread slightly and push the slider on the looper threader (39) to the left until it rests in place.
   

Technical line drawing of a mechanical assembly with no visible text or symbols

Technical diagram of a vehicle's internal components with numbered parts for identification

1. Pull the thread a bit more and at the same time let the slider slowly slide back. The thread is automatically inserted in guide 9.
2. With the tweezers thread the thread through thread guide (10) and draw the thread to the left under the sewing foot. The threading path is marked in yellow.

Note:

If the slider on the threader (39) cannot be moved, the marking on the hand wheel is not correctly set.

Technical diagram of a vehicle's internal components with numbered parts for identification

Needle threader (accessory)

Lower the sewing foot with the sewing foot lever (32) and turn the hand wheel (31) until the needle is in its highest position. Place the threader from the accessories (see page 58) with the needle between the two guide lugs B. Draw the thread through slot A on the threader and hold it a bit taut.

Slowly lower the threader behind the

needle until the small hook C passes

through the needle's eye. Draw the

thread from the bottom through hook D

and the thread automatically passes

behind hook C.

Technical diagram of a mechanical assembly with labeled parts A and B, showing tool path and component alignment.

D C A E

Technical diagram showing a tool interacting with a mechanical component labeled A and B, with an arrow indicating direction of movement.

Draw the threader back away from the needle's eye. You can now pull the end of the thread through the eye to thread the needle.

Threading the needles

Note: When threading the needles make sure that the sewing foot lever (32) is in its highest position. This automatically releases the needle thread tensions and makes it easier to thread the needles.

Threading overedge needle A

Thread the overedge needle A in the order 1 to 6 and draw the thread through the needle's eye 7 with the threader. Draw the thread to the left under the sewing foot. The threading path for needle A in blue (dots).

Threading overedge needle B

Thread the overedge needle B in the order 1 to 6 and draw the thread through the needle's eye 7 with the threader. Draw the thread to the left under the sewing foot. The threading path for needle B in green (dots).

Technical diagram of a sewing machine with numbered components for identification

Technical diagram of a sewing machine with numbered components for identification

Changing a spool when the machine is threaded

Cut the threads off close to the thread spool and put on the new spools. Tie the ends of the old thread and the new thread together. Pull the needle threads out of the needles. Lower the sewing feet. Now pull the threads through until the knots are about six inches through the thread guide before the needles. Cut the knots off and thread the appropriate needles. You can also draw the looper threads straight through the looper eye and to the left under the sewing foot. It is a lot easier to pull the looper threads if you turn to looper tensions (4 and 5) to -5.

Closing the looper cover

When the machine has been threaded you must close the looper cover (13). Note: The power to the machine is cut off if the looper cover is open i.e. it is now impossible to sew. "Close looper cover" appears in the display. The LEDs on the speed selection also flash.

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

Sewing foot lever

The sewing foot is raised and lowered with the sewing foot lever (32).

Line drawing of a hand using a tool to adjust or install a mechanical component, no text or symbols present

Sewing test

When the machine has been threaded, you should sew a test seam. First raise the sewing foot.

Place a fabric remnant under the sewing foot right in front of the needle and lower the foot. With the threads held slightly taut, slowly begin to sew. Since the fabric is automatically fed, you just need to guide the material with your hands (do not push or pull).

Note: Make sure that the threads inter-loop correctly when sewing (thread chain).

Technical line drawing of a sewing machine needle assembly (no text or symbols)

Technical line drawing of a sewing machine needle with a hand operating it (no text or symbols present)

Line drawing of a sewing machine needle stitching a garment, with hands operating the seam (no text or symbols)

Line drawing of a hand operating a sewing machine with chains attached (no text or symbols)

Thread cutter
To use the thread cutter (25) you must sew over the end of the seam. Draw the thread chain that results to the front over the thread cutter.

Line drawing of a sewing machine needle stitching fabric, no text or symbols present

Securing the seam
There are various ways of securing the ends of seams:
1. Knot the thread chain
2. With knitwear you can pull the thread chain into the seam with a crochet needle. 3. Sew about 2 inches over the end of the seam. Turn the sewing round and sew back a few stitches in the opposite direction without cutting the thread chain.

Setting the seam width

The seam width adjusting knob (16) is released if it is pressed to the right. You can now set the seam width you require as indicated in the window (18). The range is from 3 to 5 mm and is infinitely variable. The standard setting N is 3,5 mm.

Note: The seam width settings 3 to 5 are just for needle B. If needle A is used the amount that is set is increased by 2,2 mm to 5,2 to 7,2 mm.

When you have set the seam width you require, press the knob to the right until it catches in place, as indicated by the arrow. This prevents the seam width being inadvertently changed while sewing. Note: The upper knife must be locked when sewing very thick fabrics or fabrics with different thicknesses (see page 30).

Line drawing of a sewing machine needle and handle mechanism (no text or symbols)

Line drawing of a hand operating a rotary knob on a device casing (no text or symbols)

Line drawing of a sewing machine needle being sewn, showing the mechanism and component (no text or symbols)

N 1 1.5 2 2.5 N 3.5 4

Setting the stitch length
You can set the required stitch length by turning the stitch length adjusting knob (33). The setting is displayed in the window (7). The range is from 1 to 4mm and is infinitely variable. The standard setting N is 3mm .

Differential feed

The differential feed consists of two feed dogs, one behind the other, that assure that the fabric is fed completely evenly. It prevents the displacement of the two fabric lays. The two feed dogs can be set separately i.e. so that the front dog feeds more than the rear dog or vice versa. This is particularly important when sewing rib knit. The differential feed is set differently depending on the type of fabric. You can see the settings on page 28.

N 0.5 0.7 N 1.5 2

Setting the differential feed

You can set the differential feed by turning the adjusting ring (34). The range from 0,5 to 2 is infinitely variable and is indicated in the window (8). The following settings can be set with the knob:

Position 0,5 = front feed dog shorter movement, rear feed dog longer movement

Position N = same movement of feed dogs

Position 1,5 - 2 = front feed dog longer movement, rear feed dog shorter movement

Note: You can also achieve fashionable effects with the differential feed dog: 1. A gathering effect can be achieved when sewing light fabrics with setting 2. 2. A wavelike effect can be achieved for use with rib knit with the setting 0,5.

This table shows possible settings for the differential feed. Sew a test seam to determine the correct setting for your fabric. The differential feed can also be set while sewing.

Differential-Feed setting	Fig.	Correct seam	Fabric
0,5 - N	1	a	nylon, tricot, lining fabrics, satin,poplin and silk
N	2	c	light cotton and denim,(normal fabrics)
1,5	3	d	jersey, medium cotton, cut-pilefabrics and light knits
1,5 - 2	4	f	heavy knitwear, very elastic fabricsand rib-knit

Close-up of a textured fabric surface with a dark horizontal band at the bottom (no visible text or symbols)

Two grayscale microscopic images labeled Fig. 2 and f, showing textured surface patterns with no visible text or symbols.

Two grayscale images labeled 'a' and 'b' showing textured surfaces with no visible text or symbols.

Microscopic images labeled Fig. 1 and d-e showing textured surfaces with no visible text or symbols

Changing the needle

Switch off the main switch.

To remove: Lower the sewing foot and

put the needle in its highest position.

Now push the needle changing aid from

the accessories (see page 58) from below

right up until it catches over the needle.

Loosen set screws (A or B) with the red

screwdriver and pull the needle down to

remove.

To insert: Insert the needle into the hole

E of the needle changing aid, with the flat

needle shank K facing towards the flat

side L of the aid. Insert the needle until it

catches in place in the holder and tighten

the needle set screw. Remove the needle

changing aid.

Note: The following needles are used for

this machine:

System EL X 705 (80 or 90)

If using the usual sewing needles

130/705 H the thread tension must be

increased.

Technical line drawing of a mechanical assembly with no visible text or symbols

L E

Two types of writing or drawing tools: a flat tool and a pen-like tool, both with no visible text or symbols.

Changing the sewing foot

Switch off the main switch

To remove: Raise the sewing foot with

the sewing foot lever (32) and set the

needle in its highest position. Press the

white lever on the back part of the

sewing foot holder. The sewing foot is

automatically released from its mount

and you can remove it to the left, raising the spring slightly.

Technical line drawing of a mechanical assembly with no visible text or symbols

To insert: Raise the spring slightly and place the sewing foot beneath the sewing foot holder so that when the sewing foot lever (32) is lowered the pin in the foot catches in place in the sewing foot holder.

Check: Please raise the sewing foot lever to check that the foot is properly secured.

Line drawing of a hand holding a circular knob on a device casing (no text or symbols)

Changing the needle plate

Switch off the main switch

Note: To change the needle plate you must set the needle width adjusting knob (16) to 3 mm.

Line drawing of a mechanical assembly with a hand operating a lever (no text or symbols)

To remove:

Looper cover open

Raise the sewing foot with the sewing foot lever (32) and set the needle in its highest position. Remove the sewing foot and press down the lever to disengage the needle plate (41). The needle plate (15) is raised out of its mount. Raise the needle plate a little more and remove to the left.

Technical diagram showing a hand operating a mechanical assembly with labeled parts 1, 2, and 3.

To attach:

Raise the spring on the sewing foot holder a little and place the needle plate (15) in the guide screw at the back. Press the needle plate down at the front so that you can hear it catch.

Disengaging the upper knife

Note: To disengage the upper knife (45) you must set the seam width adjusting knob (16) to 3 mm.

Lower the knife to the lowest position with the hand wheel. Now turn the knob to disengage the upper knife (40) fully to the left (triangle on O). The knife is disengaged.

Upper knife lock

You can sew absolutely any type of fabric with this machine, regardless of its thickness. For extremely thick fabrics you must tighten the axial lock screw on the upper knife with the large screwdriver from the accessories (see page 58). This prevents the knife from being displaced by the material. Remove the sewing foot and needle plate (see page 28, 29). To sew light fabrics the screw must be loosened by about two turns, so that the knife can again move in an axial (sideways) direction.

Note: The screw for the upper knife must be loosened to change the cutting width.

Adjusting the sewing foot pressure

You can change the sewing foot pressure depending on the thickness of the material with the lever (21).

Position 1 = sewing foot pressure for very thin fabric

Position N = sewing foot pressure for with medium thickness Position 3 = sewing foot pressure for

very thick fabric

Line drawing of a hand inserting a component into a device panel (no text or symbols)

Technical line drawing of a mechanical assembly with no visible text or symbols

Technical diagram showing a hand operating a sewing machine with labeled parts 1 and 3, indicating mechanical adjustment or repair.

Electronics

To programme language

Speed pre-selection

LED needle display

To select program

To enter new data

Technical diagram of a sewing machine with labeled parts and directional arrows indicating assembly or positioning.

You can choose between the following languages:

Czech, Danish, German, English, Spanish, French, Italian, Dutch, Norwegian, Polish, Finnish, Swedish and Japanese.

To programme language:

Keep both the program key (10 left) and the key (9) for the speed preselection pressed and at the same time switch the machine on.

„cesky“ (Czech) now appears in the display. You can select the language you want by repeatedly pressing the program key (10 left).

By pressing the cursor key (10 middle) once you programme your language.

Each description in the display will now appear in the language that you have selected.

Speed pre-selection

On this machine you can set the maximum speed in three steps with the key (9). By pressing the key (9) you change the maximum speed and one, two or three LEDs light up.

One LED lights up = 0 to max. 500 rpm

Two LEDs light up = 0 to max. 1000rpm

Note:

Each time the machine is switched on it automatically sets a speed of 1000 rpm.

Technical diagram of a device layout with labeled components and indicators

Diagram of a mechanical or electrical component with labeled parts and symbols (no readable text or numbers)

Three LEDs light up = 0 to max. 1500rpm

Diagram of a mechanical or electrical component with no visible text, numbers, or symbols

LED needle display (A and B)

The LEDs on the needle display (11) show which of the needles A or B have to be inserted for the program you have selected.

PFAFF hobbylock 4860

Display
This machine has the following 16 programs:
Progr. 1	2 thread flatlock narrow
Progr. 2	2 thread flatlock wide
Progr. 3	2 thread flat hem
Progr. 4	3 thread overlock narrow
Progr. 5	3 thread overlock wide
Progr. 6	3 thread flat hem
Progr. 7	3 thread flatlock narrow
Progr. 8	3 thread flatlock wide
Progr. 9	Reinforced 2 thread overlock
Progr. 10	4 thread overlock
Progr. 11	Wrapped 2 thread overlock n
Progr. 12	Wrapped 2 thread overlock w
Progr. 13	2 thread rolled hem
Progr. 14	Wrapped 3 thread overlock m
Progr. 15	Wrapped 3 thread overlock w
Progr. 16	3 thread rolled hem

Note:

Beneath this display you will find the LED displays for the 10 most important types of stitch (program 1 to 10).

Select the desired program by pressing the left program key (10). The programs appear in the order 1 - 16. Keep the key pressed and the programs automatically run on.

If the mod key (10 right) is pressed the standard characteristics of the stitch are displayed. Set the machine as indicated in the display.

Symbols above the display:

Prog. = program number

= stitch length

<≦> = seam width

= differential feed

L>●<

= sewing foot pressure

= needle plate

Symbols below the display:

All the symbols under the display refer to the thread tensions. They are from the left to the right.

- left overedge needle (blue) - right overedge needle (green) - right overedge looper (pink) - left overedge looper (yellow)

10 4 - thread overlock

10A N N -N N-N N N N N N

PFAFF hot

Entering new data

This machine has 16 programs. The optimal values are entered as standard settings for each program. You can change all the data from the standard settings in any program and store them. There are three memories (A, B and C) available for each program which appear right behind the program number (e.g. 10 A). Proceed as follows:

1. Select the desired program with the program key (10 left).

2. The standard setting appears in the display when the mod key (10 right) is pressed.

3. If the mod key (10 right) is pressed

again, the letter A appears beside the program number as an indication that you can now enter your own values in memory A. If the mod key (10 right) is pressed again memory B appears and if pressed once more memory C.

1. If the cursor key (10 middle) is pressed, the display for the stitch length appears. You can now alter the stitch length with the program key (10 left).

2. If you wish to alter other settings,

press the cursor key (10 middle) until the setting that is to be changed flashes. You can now set them as required.

1. Press the mod key (10 right) to enter the data in memory. Press the mod

key until you come back to the

previously selected memory A, B, or C. All the new data has now been

entered and is retained when the

machine is switched off. If you select your memory again the values that have been entered now flash. They can of course be changed at any time as described.

10 N N N N N N N N N N N

10A-N+N:N N-N N-N-N-N-N

Setting the standard thread tension	page 38
3 thread overlock seam	page 39
4 thread overlock seam	page 39
2 thread overlock seam	page 39
Correction of thread tensions	page 40 - 42
Converter (2 thread seam)	page 44 - 46
Rolled/flat hem (2 and 3 thread)	page 47, 48
Thread chart	page 49
Program chart	page 50 - 55

Technical line drawing of a mechanical device with no visible text or symbols

Setting the standard thread tension
Uniform thread tension depends on the type of fabric and the thickness of the thread. The thread tension should be corrected after the thread interloop has been checked (see page 39 to 42). Turn the values indicated on the thread tension thumbwheels to the corresponding colour symbol.

Prog. 1 or 2

2 thread overlock seam
(narrow or wide) FLATLOCK Converter (see page 44, 45)
Thread tensions:
green or blue = dot yellow = dot

Examples of use:

For sewing and serging all types of fabric, especially suited for stretch fabrics and
for sewing FLATLOCK seams.

Prog. 4 or 5

3 thread overlock seam

(narrow or wide)

Thread tensions:

green or blue = dot

pink = dot

yellow = dot

Examples o

For serging all fabric types.

Prog. 10

4 thread overlock seam

Thread tensions:

blue = dot

green = dot

pink = dot

yellow = dot

Examples of use:

For sewing and serging all types of fabric,

especially suitable for stretch fabrics.

top side overlock stitch, top side overlock stitch, underside underside

top side overlock stitch, top side overlock stitch, underside underside

top side overlock stitch top side overlock stitch, underside underside

Correcting the thread tension:

The tension can be set between -5 and +5. It must be turned either to the - or + range depending on the seam appearance.

Towards + = tighter tension

Towards - = looser tension

Prog. 4 or 5

3 thread overlock seam

(narrow or wide)

The thread tension of needles B or A is too loose. The green or blue thread tension must be turned towards +.

Prog. 4 or 5

3 thread overlock seam (narrow or wide)

The right looper thread is too taut (pink thread tension) or the left looper thread is too loose (yellow thread tension). Both thread tensions must be adjusted accordingly by turning to - or +.

needle thread B or A

left looper thread right looper thread

Prog. 4 or 5

3 thread overlock seam

(narrow or wide)

The right looper thread is set too loose (pink tension) or the left looper thread is set too tight (yellow tension). Both thread tensions must be adjusted accordingly by turning to + or -.

right looper thread left looper thread

Prog. 10

4 thread overlock seam

The left looper thread is set too tight

(yellow tension) or the right looper

thread is set too loose (pink tension).

Both thread tensions must be adjusted

accordingly by turning either to - or +.

right looper thread left looper thread

Prog. 10
4 thread overlock seam
The left looper thread is set too loose
(yellow tension) or the right looper
thread is too tight (pink tension). Both
thread tensions must be adjusted accord-
ingly by turning either to + or -.

right looper thread left looper thread

Prog. 10

4 thread overlock seam

The thread tension on needle B is too loose. The green tension must be turned to +.

Prog. 10
4 thread overlock seam
The thread tension of needle A is too loose. The blue tension must be turned to +.

needle thread B

needle thread A

Prog. 4 or 5

3 thread overlock seam (narrow or wide)

The 3 thread overlock seam is sewn with two looper threads and one needle thread (needle change page 27).

The set seam widths 3 to 5 mm in the window (18) only apply to needle B.

If needle A is used, the setting is increased by 2,2 mm (seam width 5,2 to 7,2 mm).

3 thread overlock seam
Needle A	Needle B
Standard needle width N	Standard needle width N
Needle width	Needle width
min. 5,2 mm, max. 7,2 mm	min. 3 mm max. 5 mm

Converter

A serging seam is generally sewn with 3 threads. If you connect the converter you can dispense with one thread i.e. you just continue to sew with 2 threads and thus save a lot of thread. Wherever a 2 thread seam is enough i.e. for elastic materials and materials that hardly fray, you can still make neat edges with less thread. You can also make very effective fancy seams with the converter using mercerized cotton.

All seams that are sewn with the converter (37) are only sewn with the left looper thread (yellow thread path) and with one needle thread. Exception: Prog. 9 is sewn with two needle threads and the left looper thread.

To switch on the converter

Turn the hand wheel until the right over-edge looper (36) is situated to the right of the needle.

To use the converter (37) you must cut off the right looper thread and pull it out of the looper eye.

Technical line drawing of a mechanical clamp or tool with a pen inserted (no text or symbols)

Technical line drawing of a mechanical device with scissors and cutting tool (no text or symbols)

The left hand thread that runs over the right looper must be pulled over the point of the right looper in the direction of the arrow as in this illustration.
Push the slide of the converter to the left until the triangles are in line. The point of the slide catches into the eye of the looper (Fig A).
Converter switched on - position A Converter switched off - position B
To switch the converter off
Turn the hand wheel slowly until the left hand looper thread jumps from the point of the right looper. Switch the converter (37) off in this position (position B). Thread the right looper (see page 14).

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

Technical diagram of a mechanical tool with an inset showing a labeled component 'A' and angle 'θ'

A B

2 thread overlock seam with converter

Standard seam width with needle A = 5,7 mm (range from 5,2 - 7,2 mm) Standard seam width with needle B = 3,5 mm (range from 3 - 5 mm)

Progr. 1 or 2

2 thread overlock seam (narrow or wide) FLATLOCK

This illustration shows the 2 thread over-lock seam with the thread tensions correctly set.

Ways of correcting the thread tensions

Prog. 1 or 2

2 thread overlock seam (narrow and

wide) FLATLOCK

Looper thread E is set too tight (yellow tension) or needle thread F is too loose

(green or blue tension). The two thread

tensions must be turned accordingly

to + or -.

The looper thread E is set too loose (yellow tension) or the needle thread F is too tight (green or blue tension). The two thread tensions must be turned accordingly either to + or -.

underside E F top side

underside E F top side

underside E F top side

Prog. 3, 6, 13 or 16

Rolled/flat hem

A rolled/flat hem is used for light, thin fabrics and also creates a decorative edge. It is a very simple way to add a professional touch to cloths, scarves and valance. To do so just convert the machine as indicated in the display.

The rolled hem can only be sewn with the needle B and you must also replace the needle plate N with the rolled hem plate R (see page 28, 29).

The best suited threads are textured thread (bulk thread) as well

The best suited threads are textured thread (bulk the Only textured thread should be used for the looper.

Prog. 6

3 thread flat hem

top side underside

Prog. 16

3 thread rolled hem

top side underside

Needle plates N and R

The needle plate R must be used for all rolled hems.

Two schematic diagrams of electronic components with labeled pins (N and R), no readable text or symbols present.

Prog. 3

2 thread flat hem

The amount of thread used for the 2 thread flat hem is smaller and the sear seems finer. The converter must be switched on for this flat hem (see pages 44, 45).

top side underside

Prog. 13
2 thread rolled hem The converter must be switched on fo this rolled hem (see pages 44, 45).

top side underside

Thread chart for the 2,3 and 4 thread overlock seam
Fabric weight	Thread	Stitch length
Light fabrics:organdy, fine tricot,taffeta, silk,lining fabric	cotton no. 80 - 100silk no. 80 - 100synthetic thread no. 70 - 140	2,0 - 4,0 mm
Medium-weight fabrics:cotton, tricot,linen, children's fabrics	cotton no. 60 - 100silk no. 50 - 100synthetic thread no. 70 - 140	2,0 - 4,0 mm
Heavy fabrics:tweed, jacket cloth,denim, heavy cloth	cotton no. 40 - 60silk no. 40 - 60synthetic thread no. 70 - 140	2,0 - 4,0 mm
Knits:	cotton no. 40 - 60silk no. 40 - 60synthetic thread no. 70 - 140	2,0 - 4,0 mm
2 or 3 threadrolled hem	polyester thread no. 120 - 140texturedthread(bulky thread)	1,0 - 2,0 mm

Program chart
The values for thread tension, stitch length, needle thickness and the differential feed settings are basic settings and must be altered or corrected depending on the type of fabric, fabric thickness and thread.
The differential feed setting depends on the type of fabric (see page 26). All the possible types of stitch and the settings that are necessary are listed in this chart.

Program no.: Stitch type	Material	Needle thread tension		Looper thread tension		Sewing foot pressure	Stitch length
		blue	green	pink	yellow
Prog. 12 thread flatlock seam(narrow)	light		-3		+1	1-N	N
	medium		-3		+1	N
	heavy		-3		+1	N-3
Prog. 22 thread flatlock seam(wide)	light	-1.5			+1	1-N	N
	medium	-1.5			+1	N
	heavy	-1.5			+1	N-3
Prog. 32 thread flat hem	light		-2		+1	1-N	1 to 1,5
	medium		-2		+1	N
	heavy

Note:
This information about the thread spools, position of the looper disengaging lever and the converter position is only to be found in this chart (not in the display).

Thread spool				Needle		Needle plate	Differential feed setting	Slide position of converter
				A	B			A	B
	●		●		9014	N	N	●
●			●	9014		N	N	●
	●		●		8012	R	N	●

Program no.: Stitch type	Material	Needle thread tension		Looper thread tension		Sewing foot pressure	Stitch length
		blue	green	pink	yellow
Prog. 43 thread overlock seam(narrow)	light		N	N	N	1 - N	N
	medium		N	N	N	N
	heavy		N	N	N	N - 3
Prog. 53 thread overlock seam(wide)	light	N		N	N	1 - N	N
	medium	N		N	N	N
	heavy	N		N	N	N - 3
Prog. 63 thread flat hem	light		N	+ 1	N	1 - N	1 to 1.5
	medium		N	+ 1	N	N
	heavy
Prog. 73 thread decorative seam(narrow) flatlock	light		-3	+ 1	+ 4	1 - N	N
	medium		-3	+ 1	+ 4	N
	heavy		-3	+ 1	+ 4	N - 3
Prog. 83 thread decorative seam(wide) flatlock	light	-1.5		+0.5	+ 4	1 - N	N
	medium	-1.5		+0.5	+ 4	N
	heavy	-1.5		+0.5	+ 4	N - 3
Prog. 9reinforced 2 threadoverlock seam	light	N	N		-1	1 - N	N
	medium	N	N		-1	N
	heavy	N	N		-1	N - 3

Thread spool		Needle		Needle plate		Differential feed setting			Slidesetting ofconverter
		A	B	N	N	N	N	●	●
								A	B
			9014	N	N	N	●	●	●
					9014	8012	N	N	●
			●	●	●	●	●	●	●
			●	●	●	●	●	●	●
			●	●	●	●	●	●	●
			●	●	●	●	●	●	●
			●	●	●	●	●	●	●
			●	●	●	●	●	●	9014
			●	●	●	●	●	●	9014
			●	●	●	●	●	●	9014
Program no.: Stitch type	Material	Needle thread tension		Looper thread tension		Sewing foot pressure	Stitch length
		blue	green	pink	yellow		.
Prog. 104 thread overlock seam	light	-0.5	-0.5	N	N	1-N	N
	medium	N	N	N	N	N
	heavy	N	N	N	N	N-3
Prog. 11Wrapped 2 thread overlock seam (narrow)	light		N		-1	1-N	N
	medium		N		-1	N
	heavy		N		-1	N-3
Prog. 12Wrapped 2 thread overlock seam (wide)	light	N			-1	1-N	N
	medium	N			-1	N
	heavy	N			-1	N-3
Prog. 132 thread rolled hem	light		N		-1	1-N	1 to 1.5
	medium		N		-1	N
	heavy
Prog. 14Wrapped 3 thread overlock seam (narrow)	light		N	-5	+3.5	1-N	N
	medium		N	-5	+3.5	N
	heavy		N	-5	+3.5	N-3
Prog. 15Wrapped 3 thread overlock seam (wide)	light	N		-5	+3.5	1-N	N
	medium	N		-5	+3.5	N
	heavy	N		-5	+3.5	N-3
Prog. 163 thread rolled hem	light		N	N	+3	1-N	1 to 1.5
	medium		N	N	+3	N
	heavy

Thread spool				Needle		Needle plate		Differential feed setting	Slide setting of converter
										A	B
										N	N
										N	N
				●	●	9014	9014	N	N	N	●
				●	●	9014	9014	N	N	N	●
				●	●	9014	9014	R	N	N	●
				●	●	9014	9014	N	N	N	●
				●	●	9014	9014	N	N	N	●
				●	●	9014	9014	R	N	N	●

Black-and-white photo of a person in a hooded garment holding a phone, with no visible text or symbols.

Accessories

page 58, 59 page 59–68

Normal accessories Special accessories

Screwdriver (small)

Screwdriver (big)

Lint brush

Tweezers

5 Upper knife

Thread unreeling disc (4 x)

7 Needles

8 Sewing machine oil

9 Rolled/flat hem needle plate R

0 Thread spool net (4 x)

1 Needle threader

12 Tool for changing the light bulb

13 Needle changing aid

Thread spool net

The thread spool net from the accessories (see page 58) is particularly useful as it prevents synthetic threads from unravelling so easily and slipping off the spool (Fig A).

spool (Fig A).

Thread unreeling disc

The thread unreeling disc from the accessories (see page 58) is used for smaller thread spools. Remove the thread spool centering pieces from the thread reel pin and put on the thread spools. Place the thread unreeling disc on the bottom of the reel pin with the rounded end C to the bottom as in fig. B.

Reel disc (special accessories)

The reel disc D is helpful when using large thread spools (5.000 - 10.000) Place the thread spool centering piece (26) upside-down on the reel pin (24) illustrated.

The reel disc prevents the loops of synthetic threads from slipping down and ensures that the thread runs smoothly.

Illustration of a cylindrical object with textured surface and labeled point A (no text or symbols on the object itself)

B C

Illustration of a mechanical device with a conical spool and base mount (no text or symbols)

Chart for the combination of sewing feet and needle plates

Sewing foot	Needle plate	Accessory	Part no.
Combination foot	N	normal accessory	29-924 993-71/287
Combination foot	R	normal accessory	29-924 993-71/287
Taping foot	N	special accessory	29-924 993-71/295
Blindstitch foot	N	special accessory	29-924 993-71/291
Gimp thread sewing foot	R	special accessory	29-924 993-71/294
Elastic tape sewing foot	N	special accessory	29-924 993-71/292
Gathering foot	N	special accessory	29-924 993-71/293
Cording foot	N	special accessory	29-924 993-71/298
Bead sewing foot	R	special accessory	29-924 993-71/296
Lace sewing foot	R	special accessory	29-924 993-71/297

Taping foot
This special sewing foot is for sewing on tapes to prevent stretch materials (knit-wear) from stretching.
Preparing the machine:

Program:	4 or 5 depending on width of tape
Stitch length:	N
Stitch width:	3 - 5 (adjustable for a tape width of 4 - 9 mm)

Differential setting: Sewing foo

Close-up of a textured fabric with a vertical seam or edge, showing no visible text or symbols.

Inserting the tape:

1. Set the needle at highest point.

2. Raise sewing foot and place tape in guides 1 from the right.

3. Push tape to right stop with the slide 2.

4. Depending on the width of the tape, adjust its position in relation to the needle with adjusting screw 3.

5. Insert fabric and sew a test seam.

Technical diagram of a mechanical device with numbered components labeled 1, 2, and 3

Blindstitch sewing foot

Blindstitch is ideal for skirt and trouser seams and wherever the seam should not be visible. The hem is trimmed, serged and sewn in one operation.

Preparation of the machine:

Program: 4 Stitch length: 4 Stitch width: N

setting: N

pressure: N

Needle plate: normal needle plate N Thread tension: see display

. (press mod key) Sewing foot: blindstitch foot

Upper knife: switch on

Sewing:

1. Before sewing cut 2 cm off hem part

2. This prevents displacement of the seam.

3. Place the prepared hem under the sewing foot so that the folded hem part 3 is under the edge guide 2. The crease line 4 of the outer fabric must run along the edge of guide 2.

4. The needle penetration in the outer fabric is regulated as follows: Loosen the adjusting screw 1 and adjust the edge guide 2 so that only one thread of the outer fabric is caught by the needle.

Technical diagram of a sewing machine with numbered parts labeled 1 to 4

Close-up of a textured surface with a diagonal white line overlay (no text or symbols)

Gimp thread sewing foot

This special sewing foot is used to sew in gimp threads (cords, synthetic threads) up to a thickness of 1.0 mm. This produces an undulating or stiffer hem (e.g. on wedding dresses and valance).

Preparing the machine:

13 (switch converter

1.0 to 1.5

3 to 4

Differential

setting: Sewing foot

N

Needle plate: rolled seam needle

plate R

Thread tension: see display

(press mod key)

gimp thread sev

engaged

Inserting the gimp thread

1. Raise the sewing foot and set the

needle in its highest position.

1. Place the fabric under the sewing foot.

2. Thread gimp thread (cord) through the

hole 1 and then place it in guide 2 of

the sewing foot shoe.

1. Sew a test seam.

Technical diagram of a mechanical assembly with labeled parts 1 and 2

Close-up of a textured surface with a vertical seam or edge, no visible text or symbols

Close-up of a textured fabric with two vertical seam patterns (no text or symbols)

Elastic tape sewing foot

This special sewing foot is for sewing on elastic tape in one operation at the same time as trimming, serging and - due to the contraction of the elastic tape - gathering.

Preparing the machine:

Program:	4, 5 or 10 depending on width of tape
Stitch length:	4
Stitch width:	4 to 4,5
Differential setting:	N
Sewing foot pressure:	N or 3
Needle plate:	normal needle plate N
Thread tension:	see display (press mod key)
Sewing foot:	elastic tape sewing foot
Upper knife:	engaged

Inserting elastic tape:

1. Loosen the screw (2) so that the brake (1) at the opening is opened about 1,5 to 2 mm.
2. Insert elastic tape (3) and draw it back under the foot.
3. Tighten the brake (1) again with screw (2). The lower the screw (2) is tightened up, the greater the pressure of the brake (1) on the elastic tape and the greater the gathering effect.

Note:

When the sewing foot is raised the elastic tape should be drawn through the brake (1) against a slight resistance.

Technical diagram of a mechanical assembly with numbered components and directional arrows indicating motion or force

Close-up of a textured fabric with diagonal seam and visible stitching (no text or symbols)

Gathering foot

This special gathering foot is for sewing two fabrics together and gathering the bottom ply in one operation.

Preparing the machine:

Program:	10
Stitch length:	N
Stitch width:	N
Differential setting:	2
Sewing foot pressure:	N or 3
Needle plate:	normal needle plate N
Thread tension:	see display (press mod key)
Sewing foot:	gathering foot
Upper knife:	engaged

Inserting the fabrics:

1. Raise the sewing foot and set the needle in its highest position.

2. Insert the bottom ply of fabric 1 between the needle plate and the gathering foot up to the upper knife.

3. Place the upper ply of fabric 2 flush with the lower ply (right side to right side) right up to the edge 4 of openi 3.

4. Always sew a test seam to decide the desired gathering effect with the differential feed.

Technical diagram of a mechanical assembly with numbered components labeled 1 to 4

Cropped image showing vertical Chinese characters on a dark textured background, likely from a sign or label.

Cording foot
This special sewing foot is for sewing a cording tape between two fabric plies in one operation.

Preparing the machine:
Program:	10
Stitch length:	N
Stitch width:	3 - 5
Differential setting:	N
Sewing foot pressure:	N or 3
Needle plate:	normal needle plate N
Thread tension:	see display (press mod key)
Sewing foot:	cording foot
Upper knife:	engaged

Inserting the fabric plies:

1. Raise the sewing foot and set the needle in its highest position.

2. Insert the bottom, ply, cording tape and top ply together flush (right side to right side) under the cording foot up to the upper knife. The cording (piping) must be placed in guide 1.

3. Lower the sewing foot and sew a test seam.

Technical line drawing of a mechanical assembly with no visible text or symbols

Two vertical dark textured surfaces with a white horizontal line dividing them (no text or symbols)

sewing foot

This special sewing foot is for sewing on beads, sequins, strass bands, lead and ordinary cords. These operations are carried out with one needle only.

Preparing the machine:

Program:	4 (for small beads)
	5 (for larger beads)
Stitch length:	3 to 4
Stitch width:	N to 5
Differential setting:	N
Sewing foot pressure:	1 or N
Needle plate:	rolled hem needle plate R
Thread tension:	see display (press mod key)
Sewing foot:	bead sewing foot
Upper knife:	optionally disengag or not

Sewing:

1. Raise the sewing foot and set the needle in its highest position.

2. Slide the bead tape through guide 1 and 2 to the back of the foot foot (fig. 1).

3. You can sew with or without the upper knife in all the seam width settings. Guide the fabric along the right hand sewing edge.
4. The needle should penetrate 1 to 1,5 mm along the edge of the fabric (fig. 2).

Note:

If the bead is sewn onto the fabric edge, the left needle must be used (disengage upper knife).

Lace sewing foot

This special sewing foot is used for sewing lace or borders together or onto the workpiece.

Preparing the machine:

Program:	4
Stitch length:	1,5 to 2,0
Stitch width:	N
Differential setting:	N
Sewing foot pressure:	1 or N
Needle plate:	rolled hem

plate R
Thread tension: see display
(press mod key)
lace sewing foot
Upper knife: optionally disengaged
or not

Sewing on lace:
1. Raise the sewing foot and set needle
in highest position.

2. Loosen screw 3 and adjust guide 2 so that when sewing the needle penetrates right at the edge of the lace (and the fabric underneath). Tighten screw 3.

3. When sewing the lace onto the fabric it must simply be run through guide 2 along edge guide 1 (engage upper knife).

1. If the fabric underneath is not to be
   trimmed when the lace is sewn on.
   both the lacc and the fabric must be
   both the face and the fabric must be
   guided flush along edge guide (upper knife disengaged).
2. Always sew a test seam.

Technical diagram of a mechanical assembly with numbered components labeled 1, 2, and 3

Close-up of a decorative lace pattern with floral motifs, no visible text or symbols

Microscopic view of cellular or tissue structures with no visible text or symbols

Maintenance and malfunction

page 70, 71 page 72 page 72 page 73 page 73 page 74, 75 page 76

Changing the knives Changing the light bulb Cleaning the needle plate Cleaning the knives Oiling the machine Sewing problems Specifications

Changing the upper knife

Switch main switch off

To remove: Take out the upper knife

retaining screw (42) with the large

screwdriver from the accessories (see 58) and remove the upper knife.

page (45).

To insert: Insert the new upper knife (45)

and tighten-its retaining screw loosely.

Turn the hand wheel until the upper knife

is in its lowest position.

Line drawing of a hand operating a mechanical device with no visible text or symbols

Technical line drawing of a mechanical assembly with no visible text or symbols

In this position the front edge of the

upper knife must be 0,5 to 1,0 mm

lower that the cutting edge of the lower

knife. When the upper knife has been

fully adjusted, you can tighten up its

retaining screw.

0.5-10mm

Changing the lower knife

Switch main switch off

To remove: Set the seam width adjusting knob (16) to 3. Remove the sewing foot as well as the needle plate (see page 28, 29). Raise the needles to their highest position and disengage the upper knife (see page 30). Undo the lower knife retaining screw (43) with the large screwdriver from the accessories (see page 58) and remove the screw, pressure plate and lower knife.

Technical line drawing of a mechanical assembly with no visible text or symbols

To insert: Slide the new lower knife (44)

between the lower knife holder and the upper knife. Place the pressure plate on the hole in the lower knife so that the longer part with the slanted corner is pointing backwards to the machine. Secure the lower knife and the pressure plate with the retaining screw. Insert the needle plate. Bring the cutting edge of the lower knife to the same level as the needle plate. Now tighten up the retaining screw.

Pure mechanical component diagram without any text, numbers, or symbols

Changing the light bulb

Switch main switch off

To remove: With the tool from the accessories (see page 58) press the light bulb right into its holder. At the same time twist the bulb with half a turn, anticlockwise and remove it.

Technical line drawing of a mechanical assembly with a hand operating a component (no text or symbols present)

To insert: Insert the light bulb in the holder with the special tool and twist it until the pins on the bulb catch in place.

Now press the bulb right into the holder, twisting it clockwise until it is securely fixed. Note: The maximum power of the bulb is 5 watt.

Cleaning the needle plate Switch the mainswitch off

Disengage the upper knife (see page 30). Set largest stitch width. Clean the marked area carefully using the brush from the accessories.

Technical line drawing of a mechanical assembly with no visible text or symbols

Line drawing of two hands holding a tool, no text or symbols present

You can now remove the upper knife (45) and clean the lint off the upper and lower knife with the brush from the accessories (see page 58).

Technical line drawing of a mechanical assembly with no visible text or symbols

Oiling the machine
Before using your machine you should make a habit of lightly oiling the marked points with the oil from the accessories (see page 66). One or two drops of PFAFF sewing machine oil are enough. All the other parts are made of a special material and do not need to be oiled.

Technical line drawing of a mechanical assembly with no visible text or symbols

Cleaning the knife
Switch the main switch off
Take out the upper knife retaining screw (42) with the screwdriver supplied.

Technical line drawing of a mechanical assembly with no visible text or symbols

Sewing problems and their solutions
The machine was developed for the simplest operation possible. There are no complicated settings. It is however possible that the following problems arise as a result of small errors in the settings and operation. These problems can be easily solved if you follow these instructions.

Problem	Cause	Solution
Needle breakage	The needle was bent or the point damaged.The needle was not properly inserted.The fabric was pulled too forcefully.	Insert new needle (see page 27).Insert needle properly (see page 27).Do not pull the fabric when sewing.
Thread breaks	Incorrect threading.The thread got caught.Thread tension is too tight.The needle was not properly inserted.The wrong needle was used.	Thread properly (see page 13 – 18).Check if you have caught the thread on the spool stands etc.Correct the tension.(see page 40 – 41 and 46).Insert needle correctly.(see page 27).Use needle system EL X 705
Skipping stitches	The needle is bent or the point damaged.The needle was not properly inserted.The wrong needle was used.Incorrectly threaded.	Insert new needle (see page 27)Insert the needle correctly (see page 27).Use needle system EL X 705 Thread correctly (see page 13 – 18).
Stitch formation faulty	Thread tensions wrongly set.	Re-set thread tensions (see page 40 – 41 and 46).
3 or 4 thread over-lock seam is irregular.The right looper thread is not sewn.	The converter is in its left position A (see page 45)	The converter must be set in its right position B (see page 45).

Problem	Cause	Solution
The machine does not operate although the main switch is switched on.	The electric power has been cut.	Close the looper cover (see page 12).
The fabric is not trimmed neatly.	Lint between the upper and lower knife.The lower knife is blunt.	Clean the knife(see page 73).Change lower knife(see page 71).
Gathering of the seam.	The thread tension is too tight.The differential feed is incorrectly set.The thread is incorrectly thread and has got caught	Reduce thread tension (particularly for light fabrics see page 38 - 42).Correct differential feed (see page 25, 26).Thread correctly (see page 13 - 18).

Contents of the cardboard box

Machine

Foot control

Mains cable

Machine cover

Waste box

Instruction manual

Specifications

1500 stitches/min

3 to 7.2 mm

1 to 4 mm

1:05/1:2

exchangeable

exchang manual

manual

5 + 1,5 mm

EL x 705

80 or 90

2,3,4

310×330×320

10,5 kg

Technical diagram of a sewing machine with numbered parts for identification

Technical line drawing of a rectangular mechanical component with mounting brackets and a labeled dimension (no text or symbols beyond the number 46)

Parts of the hobbylock 4860

(22)	Thread guide with coloured markings
(23)	Telescopic thread guide
(24)	Spool pins
(25)	Thread cutter
(26)	Spool centering
(27)	Spool stands
(28)	Power socket
(29)	Main switch
(30)	Foot control socket
(31)	Hand wheel
(32)	Sewing foot lever
(33)	Stitch length adjusting knob
(34)	Adjusting ring for the differential feed
(35)	Reverse thread guide

PFAFF

G. M. Pfaff

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