Page 1
Instruction Manual
and Parts List
Zigzag Sewing Machine
20
20
109 / 109C
112 / 112C
309
U
910
E
SINGER and the Cameo "S" Design are exclusive trademarks of The Singer Company Limited S.à r.l. or its Affiliates.
©2011 The Singer Company Limited S.à r.l. or its Affiliates. All rights reserved.
Page 2
Contents
1 Safety Instructions 1
1.1 Important Safety Instructions 1
1.2 For Safe Operation 2
2 Product Description and Machine Specification 3
2.1 Product Description 3
2.2 Machine Specification 4
2.3 Motor, Motor Pulley and V-Belt Specifications 5
2.4 Relationship between Zigzag Bight and Maximum Speed 5
3 Setup and Adjustment Instructions 6
3.1 Table Cut-Out Drawing 6
3.2 7
Oil Reservoir Installation
3.3
Belt Cover Installation
3.4
Operation panel Installation (for 20E-910 only)
3.5
The connecting the connectors to the control box (for 20E-910 only)
3.6
Lubrication
3.7
Needle and Thread
3.8
Inserting the Needle
3.9
Bobbin Case Attachment
3.10
Bobbin Thread Winding
3.11
Bobbin Case Threading and Replacement
Machine Threading
3.12
Stitch Length Adjustment (Except 20E-910)
3.13
Presser Foot Pressure Adjustment
3.14
Needle Thread Tension Adjustment
3.15
Thread Take-up Spring Adjustment
3.16
Bobbin Thread Tension Adjustment
3.17
Needle Position Selector (except 20U-309 and 20E-910)
3.18
Stitch Width Regulator (Except 20E-910)
3.19
Zigzag Stitch Width Control (Except 20E-910)
3.20
Needle Bar Frame Clamp Device
3.21
Straight and Zigzag Stitch Fitting (Except 20E-910)
3.22
Spool Cap Usage
3.23
Thread Anti-Spill Net Usage
3.24
Knee Lifter Installation
3.25
Fittings for Buttonhole Stitching
3.26
Fittings for Hem Sewing
3.27
3.28
8
8
9
10
11
11
12
13
14
16
17
17
18
18
19
19
20
20
21
22
23
24
24
27
27
28Fittings for Zipper and Cord Sewing
Page 3
Contents
4
Maintenance 29
4.1 Machine Head Cleaning 29
4.2
Lubrication 29
Safety Inspection 29
4.3
Troubleshooting 30
5
Parts List 31
6
6.1
Face Plate, Arm Top Cover and Arm Side Cover Components 32
Thread Take-up, Arm Shaft and Handwheel Components 34
6.2
6.3
Needle Bar, Presser Bar and Needle Plate Components
6.4 Zigzag Triangular Cam and Hook Advancing Crank Components 38
6.5 Bight Amplitude, Bight and L-C-R Position Components 40
6.6 Arm Shaft (upright) and Rotating Hook Drive Shaft Components 42
6.7 Hook and Bobbin Case Components 44
6.8 Feed Regulating Dial and Feed Reverse Lever Components 46
6.9 Feed Mechanism Components 48
Presser Bar Lifter and Thread Tension Components 50
6.10
Feed Mechanism Components for 20E-910 only 52
6.11
6.12 Needle Bar Vibration Components for 20E-910 only 54
6.13
Control system components for 20E-910 only 55
6.14 Thread Stand Components 56
6.15 Accessories and Attachments 58
6.16 Belt Cover Components and Extra Parts 60
36
Page 4
Safety Instructions
1.1
Important Safety
Instructions
Important
When using the
machine, basic safety
procedures must
be followed. Read
with attention all
instructions before
using the machine.
When using it,
understand that
all basic safety
instructions are
not limited to the
following items.
Read all instructions,
take care of this
manual, and use it
as reference when
necessary.
• Before running the machine, make
sure all relevant safety specifications are adequate to specifications and technical standards in
your country.
• The machine should not be run
without its safety devices.
• The machine should only be operated by properly trained personnel.
• For your safety, goggles must be
used while running the machine.
• Turn off or unplug the machine
when the following situations arise:
• Passing the thread by the needle or replacing the bobbin or
looper.
• Replacing the needle, presser
foot, throat plate, feed dog and
sliding plate.
• When the machine is in maintenance.
• When the operator is not running the machine.
• In case of lubricant oil contact
with the eyes or skin, washed the
surface with plenty of icy water
with a generous amount of cold
water. In case of ingestion, seek
medical help immediately.
• Maintenance and repair on electric equipment should only be
made by qualified personnel. If
any electric device is damaged,
the machine should be immediately stopped.
• Before starting the machine in full
running, a test must be conducted
to assure that machine and operator are able to perform the task.
• The machine should not be placed
next to a sound source as an ultrasonic welding machine and other
equipment.
• The machine should only be run
with the proper electric cable and
connectors, and also the adequate
grounding.
• The machine should only be used
to sew materials as indicated in
its instructions manual, and indications of use should be followed.
Singer will not be held responsible
for any damage caused by unauthorized changes in the product.
• Repair, fitting or maintenance
should only be performed by
properly trained personnel.
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1.2
For Safe
Operation
• To avoid the risk of electric shock,
do not open the motor wiring box
and do not touch the components
assembled inside the wiring box.
• To avoid injuries do not run the
machine without the belt cover or
in case any other safety device is
removed.
• To avoid possible injuries keep fin-
gers,
wheel, belt and motor when the machine is running. Nothing should be
placed near those parts.
• To avoid injuries never put your
fingers next to the rotating hook
and the thread take-up lever cover
when the machine is running.
• To avoid possible injuries be care-
ful when putting down or lifting
the machine head.
head and clothes far from
• If you machine is equipped with
a servomotor, it does not make
noises while being driven.To avoid
a possible accident caused by an
unexpected start, be sure the machine is turned off.
• To avoid electrical shock, do not
run the machine without proper
grounding.
• To minimize the risk of accidents
or damage in electric components
caused by electric discharge turn
the machine off before unplugging it.
• Clean the machine periodically.
• To avoid accident in case of a sudden start of the machine always
turn it off when laying it down, or
remove the belt cover and the belt.
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2
Page 6
2.1
Product
Description
Product Description
and Machine Specification
Zigzag Sewing Machine
20U series
20E
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Page 7
2.2
Machine
Specification
Table 1 – Machine Specification
Singer model
20U-109 / 109C 20U-112 / 112C 20U-309 20E-910
For sewing
Stitch type 3-step zigzag Editable, built-in pattern 100
Max. speed[1] 2,500 rpm 2,000 rpm 2,500 rpm 2,000 rpm
Max. stitch bight 9.0 mm 12.0 mm 9.0 mm 9.0 mm
Max. stitch length
Needle bar str oke
Presser bar lift (manual)
Presser bar lift (knee lifter)
Needle catalog (needle system)
Oil
Maximum speed will vary depending on fabric, threads and sewing condition
Plain zigzag (Straight stitch)
Light to medium
3.0 mm
34.8 mm
6.35 mm
9.0 mm
Cat. 1910-05 (135x9)
Singer Oil
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2.3
Motor,
Motor Pulley
and V-Belt
Specifications
1/3 HP (250W) 4-pole (low speed) clutch motor
M type v-belt
Table 2 – Machine Speed vs. Motor Pulley Diameter
Machine Speed
[spm]
20U-109 /109C 20U-112 / 112C 20U-309 20E-910 50 Hz 60 Hz
2,500 - 2,500 - 130 105
2,000 2,000 2,000 2,000 105 85
1,800 1,800 1,800 1,800 90 75
1,500 1,500 1,500 1,500 80 65
Motor Pulley Diameter
[mm]
2.4
Relationship
between
Zigzag Bight
and Maximum
Speed
Table 3 - Relationship between Zigzag Bight and Maximum Speed.
Machine Class 20E-910
Zigzag bight 0 ~ 5.0 mm 5.0 ~ 9.0 mm 0 ~ 5.0 mm 5.0 ~ 12.0 mm 0 ~ 9.0 mm
Max. speed 2,500 rpm 2,000 rpm 2,000 rpm 1,800 rpm 2,000 rpm
20U-109 / 109C / 309 20U-112 / 112C
Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 9
3.1
Table Cut-Out
Drawing
Setup and Adjustment Instructions
This hole for
20E only
Figure 1
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Page 10
3.2
Oil Reservoir
Installation
The oil reservoir should be fixed on the side of the machine table groove by
using four nails (Figure 2).
25mm
Figure 2
Two rubber seats and two rubber
corners for supporting the head
portion should be fixed on the
extended portion of the table by
Figure 3
Two hinges ‘1’ fit into the hole in the
machine bed, and the machine head
fitted the table hinge's rubber ‘2’,
using nails, and the other two
rubber cushion on the hinge side
should be fixed on grooves by
using nails too (Figure 3).
before the machine head is placed to
the cushions on the four corners of
the table (Figures 3 and 4).
12
1
Figure 4
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The machine belt cover
The motor belt cover
3.3
Belt Cover
Installation
Caution
Switch off the
machine.
Set sewing head
upright again
using both hands.
Danger of crush-
ing between
sewing head and
table top.
For your safety,
do not run the
machine without
the belt cover.
Install the machine belt cover so
that the hand wheel and v-belt
move freely without interference,
and then tighten the screw at this
position (see Figure 5).
Figure 5
Install the motor belt cover so that
motor pulley and v-belt will rotate
freely without interference.
3.4
Operation
Panel
Installation
(for 20E-910
only)
Install the operation panel ’1’ to the
bracket ‘2’ by two screws ‘3’.
1
Figure 6
Then the operation panel with the
bracket is attached into the machine
by setscrew ‘4’.
2
3
4
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Page 12
Installations of the connecting connector refer on Figure 7.
3.5
The connecting
the connectors
to the control
box
(for 20E-910 only)
Note
Each connector
has the inserting
direction. Check
the direction and
securely insert it.
The sewing
machine fails to
work if the
connectors are
not properly
inserted.
1. Sensor cord connector
2. Feed step motor cord connector
3. Needle vibration step motor cord connector
4. Power supply cord connector
5. Operation panel cord connector
4
5
1
Figure 7
2
3
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3.6
Lubrication
Caution
Switch off the
machine.
Set sewing head
upright again
using both hands.
Danger of crush-
ing between
sewing head and
table top.
For your safety,
do not run the
machine without
the belt cover.
The rotating hook, and the area at
the under of the needle plate.
Turn handwheel over toward you
until oil hole in the rotating hook
appear in sight.
Figure 8
Regularly apply one or two drops of
oil to the oil hole at the rotating
hook (Oiling point at the Figure 8).
Important
When you first
operate your
machine after set
up or after an
extended period
of disuse, oil the
machine and run
your machine at
1,000 to 1,500
spm for about 10
minutes for the
purpose of
bread-in.
Remove the face plate and the top
cover.
Apply sufficient oil to all oil felt and
indicate with oiling points shown in
Figure 9
B
B
Apply a small amount of grease to
gear teeth indicated at the 'B'.
Keep the oil saturated with the oil
reservoir felt ‘A’ at the under of the
top cover.
A
B
Figure 9
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3.7
Needle and
Thread
Selection of the proper needle
depends not only on the machine
model, but also on the material and
thread used. For selection of proper
needle and thread sizes to be used
on the various machine models
please refer to the table below.
Caution
The power
supply should
be cut off
before attach-
ing the needle.
3.8
Inserting
the Needle
Caution
Table 4 - Needle and Thread
Model
Application
Max. thread size (Nm)-
Synthetic*
Needle size (1/100mm) 10 (60) 12 ~ 16 (80 ~ 100) 18 ~ 19 (110 ~ 120)
Needle catalog
(Needle system)
* or an equivalent size of other types of thread
Use needle Cat. No. 1910-05 needle
system (135x9) only.
Raise needle bar to its highest
position by turning handwheel
toward you.
Loosen needle set screw ‘1’ (see
20U-109 / 109C / 112 / 112C / 309, 20E-910
Light weight
materials
120 60 30
Medium weight
materials
1910-05 (135x9)
Figure 10). Insert the needle in the
needle bar and push it up as far as it
will go.
Make sure its long groove faces
toward the front. Tighten needle set
screw ‘1’ securely.
Mid-heavy weight
materials
Switch off the
machine.
Do not operate
the machine
without the
finger guard ‘2’
(see Figure 10)
1
2
Figure 10
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Follow as shown in Figure 11.
3.9
Bobbin Case
Attachment
Caution
Switch off the
machine.
Do not operate
the machine
with throat
plate left open.
1. Open bed slide.
2. Raise latch ‘1’.
3. Lift out bobbin case ‘2’.
1
2
Figure 11
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3.10
Bobbin
Thread
Winding
Caution
Do not guide or
hold thread
when winding
the bobbin.
Stop motion of needle by loosening
stop-motion screw ‘1’. Hold handwheel with left hand and turn stopmotion screw toward you with right
hand. (See Figure 12).
Place bobbin on bobbin winder
spindle ‘3’ and pushing it on as far
as it will go.
‘1’ adjustment.
1
Figure 12
‘+’ direction: Increase tension
‘-‘ direction: Decrease tension
Push latch ‘2’ in the direction indicated by arrow ‘A’, then start the
machine.
Bobbin winder spindle ‘3’ is rotate
in the direction indicated by arrow
‘B’.
To adjust the amount of thread on
bobbin, loosen screw ‘4’ on latch ‘2’
and swing the latch ‘2’ away from
you or toward you, as required.
For more thread on bobbin,
swing latch ‘2’ away from you.
For less thread on bobbin,
swing latch ‘2’ toward you.
If thread winds unevenly on bobbin,
loosen screw ‘5’ and move pretension ‘1’ up or down, as required,
and tighten screw ‘5’.
Threading the pre-tension for bobbin winding
3
2
A
B
4
1
5
Figure 13
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3.11
Bobbin Case
Threading and
Replacement
Hold bobbin case so that bobbin
rotates in the direction of the arrow,
and put bobbin in the bobbin case.
(Figure 14)
Note
When straight
stitching, a
better result
can be obtained
if bobbin thread
is not threaded
through bobbin
case thread
guide ‘3’ of
Figure 17.
Put thread into notch ’1’, and pull it
under tension spring ‘2’ (Figure 15)
Pull thread out from slot ‘2’ on end
of spring ‘1’, and pass it through
bobbin case thread guide ‘3’.
Leave thread approximately 4
inches longer from in the bobbin
case. (Figure 16 and 17)
Figure 14
1
2
Figure 15
1
3
2
Figure 16 Figure 17
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3.11
Bobbin Case
Threading and
Replacement
Caution
Switch off the
machine.
Do not run
machine without closing bed
side. Danger of
injury!
Hold bobbin case by latch ‘1’ and
place it on spindle of bobbin case
holder ‘2’ so that position finger ‘3’
enters notch ‘4’ at right of bobbin
case holder (see Figure 18).
Release latch and press bobbin case
firmly in place to assure proper
position. Close bed slide.
3
4
1
Figure 18
2
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3.12
Machine
Threading
When threading the machine head,
the needle bar should be at the
highest point of its stroke.
Threading the machine in the order
shown in the Figure 19.
Leave thread approximately 4 cm
longer in the needle.
Caution
Switch off the
machine.
Do not operate
the machine
without thread
take-up guard.
Do not operate
the machine
without finger
guard.
1
5
6
2
4
3
7
8
Figure 19
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Page 20
Adjusting the stitch length:
Adjusting the reverse stitch length:
3.13
Stitch Length
Adjustment
(Except
20E-910)
Turn stitch length dial ‘1’ in the
direction of the arrow, and align the
desire number to marker dot ‘A’ on
the machine (Figure 20).
The indication of the stitch length
dial ‘1’ is in millimeters.
A
1
2
Push feed reverse lever ‘2’ down for
reverse feed, and release it for
forward feed.
To adjust the reverse stitch length
turn thumb screw '3' in direction of
the marker ‘+’or‘-' as requested for
the stitch length.
‘+’ direction: To lengthen
‘-‘ direction: To shorten
3
3.14
Presser Foot
Pressure
Adjustment
Figure 20
Loosen the nut ‘2’ and turn the
presser spring regulator ‘1’ clockwise (in direction of the marker ‘+’),
the pressure of the presser foot will
be increased.
1
2
Turn the regulator ‘1’ counter clockwise (in direction of the marker ‘-‘ ),
the pressure of the presser foot will
be decreased.
Tighten the nut ‘2’.
Figure 21
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3.15
Needle
Thread
Tension
Adjustment
Adjusting the tension of needle
thread using tension adjusting nut
‘1’ according to different sewing
condition. (Figure 22)
Turn the nut ‘1’ clockwise (in direc-
Figure 22
tion of the marker ‘+’), the tension
will increase.
Turn the nut ‘1’ counterclockwise (in
direction of the market ‘-‘), the
tension will decrease.
1
3.16
Thread
Take-up
Spring
Adjustment
The adjusting of the pressure of the
thread take-up spring ‘4’ (Figure
23).
Turn the thread tension post ‘1’
clockwise (in direction of the marker
‘+’), the pressure will be increased.
Turn the thread tension post ‘1’
counterclockwise (in direction of
the marker ‘-’), the pressure will be
decreased.
3
The adjusting of the stroke of the
thread take-up spring ‘4’. (Figure 23)
Loosen setting screw ‘2’.
Turn the thread tension ‘3’ clockwise (in direction of the marker ‘+’),
the stroke of the thread take-up
spring will be increased.
Turn the thread tension ‘3’ counterclockwise (in direction of the marker
‘-’), the stroke of the thread take-up
spring will be decreased.
4
2
1
Figure 23
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3.17
Bobbin
Thread
Tension
Adjustment
3.18
Needle
Position
Selector
(except
20U-309
and 20E-910)
Turn the tension adjusting screw ‘1’
clockwise (in direction of the marker
‘+’), the bobbin thread tension will
increase.
Turn the tension adjusting screw ‘1’
counterclockwise (in direction of
the marker ‘-’), the bobbin thread
tension will decrease.
1
Figure 24
Left, Center and Right needle position settings are available for placement of both straight and zigzag
stitching (see Figure25).
To position, push lever in and move
to desired setting.
Center setting:
Normal sewing.
Caution
Do not make any
needle position
adjustment while
the needle is in
the fabric.
Switch off the
machine.
Left/Right setting:
Only used when special placement of stitching is desired.
Figure 25
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3.19
Stitch Width
Regulator
(Except
20E-910)
Caution
Do not make any
needle position
adjustment while
the needle is in
the fabric.
Switch off the
machine.
3.20
Zigzag Stitch
Width
Control
(Except
20E-910)
The width of zigzag stitches is controlled with the spring biased stitch
width regulating lever ‘1’ (Figure
26).
Maximum zigzag width:
20U-109 / 109C / 309: 9.0 mm
20U-112 / 112C: 12.0 mm
The two thumb screws ‘1’ and ‘2’
provided on front of the arm allow
you to control the width of zigzag
stitches.
Thumb screw ‘1’:
Using to control the wide
zigzag.
Thumb screw ‘2’:
Using to control the narrow
zigzag.
Figure 26
1
2
1
3
To obtain minimum to maximum
zigzag width (20U-109, 109C, 309:
9mm or 20U-112, 112C: 12mm), as
the following of Figure 27, first
loosen thumb screw ‘2’ to permit
the stitch width regulator lever ‘3’ to
return to its zero position at the ‘A’,
and retighten thumb screw.
Then loosen thumb screw ‘1’, turn
the stitch width regulator lever ‘3’ to
clockwise as far as it will go and
while holding the regulator lever in
this position at the ‘B’, retighten
thumb screw ‘1’.
It can adjust the regulator of the
stitch width in the range from zero
to the maximum now.
Zigzag Sewing Machine | Instruction Manual and Parts List
A
Figure 27
B
20
Page 24
3.21
Needle Bar
Frame Clamp
Device
Caution
Switch off the
machine.
When straight stitching, a better
sewing result can be obtained by
locking the needle bar frame
immovable with the clamping
device.
To clamp the needle bar frame, turn
knob ‘1’ clockwise as far as it will go
(Figure 28 A)
When zigzag stitching, be sure the
clamp is released.
To release the clamp, turn the knob
‘1’ counterclockwise as far as it will
go (Figure 28 B)
1
A
Clamp
B
Release
1
Figure 28
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3.22
Straight and
Zigzag Stitch
Fitting (Except
20E-910)
Caution
Switch off the
machine.
Zigzag stitch Presser Foot ‘1’,
Needle Plate ‘2’ and Feed Dog ‘3’
are used for straight and zigzag
stitching. (Figure 29)
605652(20U-102/102C/309)
2
606402(20U-112/112C)
3
1
606650(20U-109/109C/309)
606651(20U-112/112C)
Figure 29
606588(20U-109/109C/309)
606502(20U-112/112C)
Straight Stitch Presser Foot ‘1’,
Needle Plate ‘2’ and Feed Dog ‘3’
are used for straight stitching only.
(Figure 30)
1
606693 606695 606697
2
Figure 30
3
Changing the needle plate and feed
dog (Figure 31)
Open bed slide, then remove
needle plate, (Use screwdriver ‘3’
furnished with machine for removal
and replacement of needle plate
and feed dog.)
Using a screwdriver ‘2’ remove bed
plate ‘1’ and remove feed dog ‘4’.
4
To replace general purpose or
straight stitch feed dog, fasten feed
dog to machine temporarily and
replace general purpose or straight
stitch needle plate. Set feed dog
correctly in position so that it will
not hit the edges of feed dog slots
in the needle plate.
Replace bed plate and press it
firmly in place.
3
1
2
Figure 31
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3.23
Spool Cap
Usage
When using a reel type thread spool
‘2’, fit the spool cap ‘1’ onto the
thread spool hole ‘3’, which is supplied by the machine accessory.
Set the height of thread spool
holder ‘4’ so there is approximately
2.0 mm clearance between top end
1
of spool pin ‘5’, and the tip of the
slotted spigot of the spool cap ’1’.
The spool cap ’1’ should never be
fitted on the spool pin ‘5’. Forcing it
onto the spool pin may result in
breaking the slotted spigot of the
spool cap.
3
2
5
5
2 mm
4
Figure 32
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3.24
Thread Anti-
Spill Net
Usage
When using synthetic threads that
easily spill off the cone ‘1’, slip the
thread anti-spill net ‘2’ furnished
with the machine over the thread
Figure 33
from the bottom of cone ‘1’ leaving
the thread end to hang free at the
top of thread anti-spill net ‘2’.
(Figure 33)
1
2
3.25
Knee Lifter
Installation
Knee lifter mounting (Figure 34)
The knee lifter bracket ‘1’ position is
145 mm from the edge at the underneath table cutout.
Figure 34
Then fasten the knee lifter bracket
under the table ‘2’.
145 mm
1
2
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3.25
Knee Lifter
Installation
Caution
Switch off the
machine.
Set sewing head
upright again
using both hands.
Danger of crush-
ing between
sewing head and
table top.
Knee operating presser foot lift
(Figure 35)
Bell cranks ‘1’ is fastened to the
underside of the bed, the bell crank
‘1’ is used for lifting and lowering
the presser foot by the knee.
To raise or lower the presser foot by
the knee, loosen screw ‘4’ holding
the knee lifter shaft arm ‘3’, and
move the knee lifter shaft arm ‘3’
just under the bell crank ‘1’ and
firmly tighten screw ‘4’.
Loosen the lock nut holding screw
‘7’ and turn screw ‘7’ as required, so
that the bent end ‘6’ of knee lifter
shaft arm ‘3’ will be almost horizontal when knee lifter knee plate ‘5’ is
pushed as far as it will go in the
direction indicated with arrow ‘A’,
then firmly tighten the lock nut.
With knee lifter shaft arm ‘3’ set in
position as described above, loosen
screw ‘8’ and move knee lifter shaft
arm ‘3’ up or down as required, so
that height ‘10’ from its bent end ‘6’
to bracket ‘9’ is 64 mm.
Raise presser foot ‘12’ by presser
foot lifter ‘11’. Then loosen the lock
nut holding screw ‘14’ and turn
screw ‘14’ as required when the
knee lifter knee plate ‘5’ pushed in
the direction indicated with arrow
‘B’, will stop at a point (presser foot
‘12’ raised approx. 9 mm from
needle plate ‘13’ surface) where
presser bar lifter ‘11’ will drop down
from its raised position when
presser bat is lifted a little higher
than its normal up position. Then
firmly tighten the lock nut.
When knee lifter knee plate ‘5’ is
pushed in the direction indicated
with arrow ‘B’, the presser foot ‘12’
will rise and when knee plate ‘5’ is
released, presser foot ‘12’ will be
lowered.
10
64mm
14
11
2
1
7
8
9
B
3
6
4
Figure 35
12
A
5
13
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3.25
Knee Lifter
Installation
Caution
Switch off the
machine.
Set sewing head
upright again
using both hands.
Danger of crush-
ing between
sewing head and
table top.
Knee operating stitch width control
(Except 20U-309 and 20E-910)
(Figure 36)
Bell cranks ‘2’ is fastened to the
underside of the bed, the bell crank
‘2’ is used for controlling the stitch
width with the knee.
To control the stitch width with the
knee, loosen screw ‘4’ holding the
knee lifter shaft arm ‘3’, and move
the knee lifter shaft arm just under
the bell crank’2’ and firmly tighten
screw ‘4’.
Loosen the lock nut holding screw
‘7’ and turn screw ‘7’ as required, so
that the bent end ‘6’ of knee lifter
shaft arm ‘3’ will be almost horizontal when knee lifter knee plate ‘5’ is
pushed as far as it will go in the
direction indicated with arrow ‘A’.
Then firmly tighten the lock nut.
With knee lifter shaft arm ‘3’ set in
position as described above, loosen
screw ‘8’ and move knee lifter shaft
arm ‘3’ up or down as required, so
that height ‘10’ from its bent end ‘6’
to bracket ‘9’ is 67 mm.
Loosen stitch width regulating plate
thumb screws ‘11’ and ‘12’ so that
stitch width regulator ‘13’ can be
moved from zero to maximum
stitch width. (20U-109 / 109C: 9mm
or 20U-112 / 112C: 12mm). Loosen
the lock nut holding screw ‘14’ and
turn screw ‘14’ as required, so that
knee lifter knee plate ‘5’ when
pushed in the direction indicated
with arrow ‘B’, will stop at the maximum stitch width position of stitch
width regulator ‘13’. Then firmly
tighten the lock nut.
Stitch width will become wider
when knee lifter knee plate ‘5’ is
pushed in the direction indicated
with arrow ‘B’ and will become
smaller when knee plate is
released.
12
11
1
14
7
13
10
67 mm
B
Figure 36
2
3
6
4
8
9
A
5
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3.26
Fittings for
Buttonhole
Stitching
Buttonhole Foot ‘1’, Needle plate ‘2’
(Zigzag stitch) and Feed Dog ‘3’ are
606652(20U-109/109C/309)
606402(20U-112/112C)
2
1
606692(20U-109/109C/112/112C/309)
Figure 37
used for buttonhole stitching.
(Figure
37)
3
606688(20U-109/109C/309)
606502(20U-112/112C)
3.27
Fittings for
Hem Sewing
The hem foot ‘1’, needle plate ‘2’
(Straight stitch) and feed dog ‘3’ can
turn and stitch a narrow hem in a
single operation as the following
condition. (Figure 38 and 39)
410192 541937-452 543979
1. Needle position selector:
Center position
2. Stitch width regulate:
Straight stitch position.
1
2
Figure 38
3
Figure 39
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3.28
Fittings for
Zipper and
Cord Sewing
Caution
Switch off the
machine.
The zipper presser foot ‘1’ is
designed to facilitate the placement
of stitching closed to a raised edge
as the following condition. (Figure
40)
1. Needle position selector: Center
position
2. Stitch width regulate: Straight
stitch position
3. Needle plate: Straight stitch ‘3’
Zigzag stitch ‘2’
4. Feed dog: Straight stitch ‘5’
Zigzag stitch ‘4’
1
606691
2
605652(20U-102/102C/309)
606402(20U-112/112C)
3
606695
4
606588(20U-109/109C/309)
606502(20U-112/112C)
5
606697
Zipper insertion Corded seams
Figure 40
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4
4.1
Machine Head
Cleaning
4.2
Lubrication
Maintenance
Clean the machine periodically with
a soft and dry cloth to remove the
excess of dust on the machine
head. Do not use any kind of
lacquer thinner to wipe the surface.
If the machine was idle for a long
time, lubricate the machine according to the instructions of topics 3.6.
4.3
Safety
Inspection
Check periodically if all safety
devices are properly installed and
adjusted.
Check if all fixing and supporting
screws of the machine head are
adequately tighten.
Check if the v-belt is not excessively
worn and if it has the right tension.
Check if there is no overheating in
the electrical motor and check if the
power cord and plug are not damaged.
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Troubleshooting
Whenever sewing difficulty is encountered, check and make adjustments as follows.
Problem Possible Causes Possible Solutions
1. Is machine properly threaded 1. Correct needle threading
2. Are thread guides or tension disc area lint-free 2. Remove lint & fluff in bobbin case & hook
Needle thread
breaks
Bobbin thread
breaks
Skip stitches
Needle break
Fabric fails to
feed
Fabric puckers
Rotating heavy
noise
Machine fails to
start
3. Is needle-thread tension too tight 3. Adjust needle thread tension
4. Is needle bent or has a blunt point 4. Insert new needle
5. Is needle inserted correctly 5. Insert needle correctly
6. Is needle the correct size for thread & fabric 6. Select proper needle size & thread
7. Is poor quality thread 7. Change the thread
1. Is bobbin threading correct 1. Correct bobbin threading
2. Is thread tangled or caught 2. Untangle thread from bobbin case & hook
3. Is thread tension correct 3. Adjust needle & bobbin case thread tension
4. Does bobbin rotate smoothly 4. Check whether bobbin thread is wound corr ectly
1. Is needle inserted correctly 1. Insert needle correctly
2. Is needle bent or has blunt needle point 2. Insert new needle
3. Is size of needle & thread suitable for fabric 3. Select proper needle size & thread
4. Is threading correct 4. Correct needle threading
1. Is needle installed wrong 1. Install needle correctly
2. Is needle bent 2. Replace needle
3. Is needle the correct size for the fabric 3. Select proper needle & thread for fabric
4. Is needle clamping screw loose 4. Tighten needle set screw
5. Is the fabric pulled while sewing 5. Do not pull fabric while sewing
1. Is feed regulating dial properly adjusted 1. Lengthen stitch length by feed regulating dial
2. Is presser foot pressure adjusted properly 2. Adjust correct presser toot pressure
1. Is needle threading correct 1. Correct needle threading
2. Is needle point blunt 2. Replace needle
3. Is thread tension too tight 3. Adjust needle tension properly
1. Is there any lint or fluff on feed dog 1. Remove lint & fluff from feed dog
2. Is there any lint in rotating hook 2. Remove lint & fluff from rotating hook
1. Are electrical plugs properly connected 1. Turn on power switch
2. Is power & light switch turned on 2. Connect plug to power source
*** If you still have difficulty in sewing even after making adjustments,
contact your nearest Service Center.
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Page 34
Parts List
Page 35
6.1
Face Plate,
Arm Top
Cover and Arm
Side Cover
Components
42
46
44
8
3
2
37
31
1
7
42
40
6
4
5
38
39
32
36
35
34
33
31
25
27
29
28
26
30
41
23
22
21
20
9
19
11
12
13
15
17
24
16
10
14
18
46
43
No. Part No. Description
1 554113-383 Thread take-up guard 1 1 1 1 0 1
2 606407 Take-up guard screw 1 1 1 1 1 1
3 606395 Face plate assembly 1 1 1 1 0 1
4 606632 Thread guide 1 1 1 1 0 1
5 606633 Thread guide screw 1 1 1 1 0 1
6 606634 Screw 2 2 2 2 0 2
7 554118-385 Back cover 1 1 1 1 1 1
8 606635 Screw 4 4 4 4 1 4
9 606433 Arm top cover assembly 1 1 1 1 0 1
601433 Arm top cover assembly 0 0 0 0 1 0
10 606636 Thrust washer 1 1 1 1 1 1
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45
32
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6.1
Face Plate,
Arm Top
Cover and Arm
Side Cover
Components
No. Part No. Description
11 606454 Bobbin winder bracket assembly 1 1 1 1 1 1
12 606637 Spring 1 1 1 1 1 1
13 606638 Friction o-ring 1 1 1 1 0 1
GO207-8 Friction o-ring 0 0 0 0 1 0
14 606452 Bobbin winder regulating plate 1 1 1 1 1 1
15 606453 Spring 1 1 1 1 1 1
16 606449 Spring 1 1 1 1 1 1
17 606451 Hinge stud 1 1 1 1 0 1
GS272-8 Hinge stud 0 0 0 0 1 0
18 606439 Set screw 1 1 1 1 1 1
19 550032 Bobbin winder lever assembly 1 1 1 1 0 1
20 544208-005 Bobbin winder lever set screw 1 1 1 1 0 1
21 606447 Bobbin winder lever stud 1 1 1 1 1 1
22 606448 Bobbin winder lever stud ring 1 1 1 1 0 1
GZ202-8 Bobbin winder lever stud ring 0 0 0 0 1 0
23 606446 Bobbi n winder regulator assembly 1 1 1 1 1 1
24 544208-005 Bobbin winder regulator screw 1 1 1 1 1 1
25 606639 Bobbin winder tension assembly 1 1 1 1 0 1
GR482/6-8 Bobbin winder tension assembly 0 0 0 0 1 0
26 606440 Bobbin winder tension stud 1 1 1 1 1 1
27 606442 Bobbin winder tension spring 1 1 1 1 1 1
28 606441 Bobbin winder tension disc 2 2 2 2 2 2
29 606443 Bobbin winder tension nut 1 1 1 1 0 1
GL162-8 Bobbin winder tension nut 0 0 0 0 1 0
30 606439 Screw 1 1 1 1 1 1
31 606602 Arm top cover screw 2 2 2 2 2 2
32 606398 Eccentric lock 1 1 1 1 0 1
GT150-8 Eccentric lock 0 0 0 0 1 0
33 606397 Eccentric screw 1 1 1 1 1 1
34 554128 Stopper pin 1 1 1 1 1 1
35 554144 Stopper spring 1 1 1 1 1 1
36 544212-001 Stopper screw 1 1 1 1 1 1
37 GK146-8 Thread take-up guard 0 0 0 0 1 0
38 GR406/-8 Face plate assembly 0 0 0 0 1 0
39 GR232-8 Thread guide 0 0 0 0 1 0
40 GS132-8 Screw 0 0 0 0 2 0
41 GR480/2-8 Bobbin winder lever assembly 0 0 0 0 1 0
42 J900112-001 Singer 'S' cameo 1 1 1 1 1 1
43 J900112-002 Singer logo resin plate (front) 1 1 1 1 1 1
44 J900112-003 Singer logo resin plate (back) 1 1 1 1 1 1
45 J900020-xxx Model plate 1 1 1 1 1 1
46 R03001 Rivet 6 6 6 6 6 6
109 109C 112 112C 309 910
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6.2
Thread
Take-up, Arm
Shaft and
Handwheel
Components
10
15
1
14
4
12
2
5
3
8
11
13
6
7
9
22
18
20
21
23
16
17
24
28
29
25
44
19
43
27
26
31
30
32
33
46
37
34
35
41
36
42
42
39
40
38
45
No. Part No. Description
1 606640 Thread take-up assembly 1 1 1 1 1 1
2 606475 Thread take-up 1 1 1 1 1 1
3 606474 Thread take-up eyelet 1 1 1 1 1 1
4 606641 Thread take-up lever link 1 1 1 1 1 1
5 606471 Needle bar connecting link cap screw 1 1 1 1 1 1
6 606642 Needle bar connecting link assembly 1 1 1 1 1 1
7 606472 Needle bar connecting link 1 1 1 1 1 1
8 606466 Needle bar connecting stud assembly 1 1 1 1 1 1
9 606468 Set screw 1 1 1 1 1 1
10 606464 Needle bar connecting hinge pin screw 1 1 1 1 1 1
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6.2
Thread
Take-up, Arm
Shaft and
Handwheel
Components
No. Part No. Description
11 606467 Needle bar connecting hinge pin 1 1 1 1 1 1
12 606465 Washer 1 1 1 1 1 1
13 606473 Thread take-up crank 1 1 1 1 1 1
14 606643 Hinge stud 1 1 1 1 1 1
15 606420 Hinge stud set screw 1 1 1 1 1 1
16 606469 Guide 1 1 1 1 1 1
17 606444 Screw 2 2 2 2 2 2
18 606644 Arm shaft and needle bar crank assembly 1 1 1 1 1 1
19 606484 Arm shaft 1 1 1 1 0 1
601478 Arm shaft 0 0 0 0 1 0
20 606478 Needle bar crank assembly 1 1 1 1 1 1
21 606477 Needle bar crank position screw 1 1 1 1 1 1
22 504066 Position screw 1 1 1 1 1 1
23 504101 Crank set screw 1 1 1 1 1 1
24 606480 Bushing (front) set screw 1 1 1 1 1 1
25 606481 Bushing (front) 1 1 1 1 1 1
26 541606 Bevel gear assembly 1 1 1 1 1 1
27 504066 Bevel gear set screw 2 2 2 2 2 2
28 541607 Worm gear assembly 1 1 1 1 0 0
541607-308 Worm gear assembly 0 0 0 0 1 0
29 504028 Worm gear screw 2 2 2 2 2 2
30 606483 Feed eccentric assembly 1 1 1 1 1 1
31 606482 Feed eccentric screw 1 1 1 1 1 1
32 606482 Feed eccentric screw 1 1 1 1 1 1
33 606645 Retaining ring 1 1 1 1 1 1
34 606480 Arm shaft bushing screw 1 1 1 1 1 1
35 606485 Arm shaft bushing, back 1 1 1 1 1 1
36 606487 Cam flanged bushing 1 1 1 1 1 1
37 606488 Cam bushing set screw 1 1 1 1 1 1
38 505009 Cam clamp washer 1 1 1 1 1 1
39 415763-383 Cam clamp screw 1 1 1 1 1 1
40 154756 Cam clamp stop screw 1 1 1 1 0 1
41 606489 Handwheel 1 1 1 1 0 1
601489 Handwheel 0 0 0 0 1 0
42 606420 Screw 2 2 2 2 2 2
43 606712 Retaining collar assembly 1 1 1 1 1 1
44 606713 Retaining collar screw 2 2 2 2 2 2
45 53C/5-17 Sensor 0 0 0 0 0 1
46 10.2-37 Screw 0 0 0 0 0 2
109 109C 112 112C 309 910
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6.3
Needle Bar,
Presser Bar and
Needle Plate
Components
14
17
9
18
12
19
4
10
29
32
30
31
23
13
15
24
22
16
21
28
27
26
20
25
3 3
11
12
6
8
7
5
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Page 40
6.3
Needle Bar,
Presser Bar and
Needle Plate
Components
No. Part No. Description
1 606646 Needle bar 1 1 0 0 1 1
2 606461 Needle bar 0 0 1 1 0 0
3 606463 Needle clamp screw 1 1 1 1 1 1
4 606647 Needle bar frame assembly 1 1 1 1 1 1
5 606456 Needle bar frame 1 1 1 1 1 1
6 606458 Indicator plate 1 1 1 1 1 1
7 606459 Indicator plate screw 2 2 2 2 2 2
8 606457 Eccentric pin set screw 1 1 1 1 1 1
9 606516 Set screw 1 1 1 1 1 1
10 606460 Needle bar frame pin 1 1 1 1 1 1
11 GR466-8 Needle bar tread guard 1 1 0 0 1 1
GR252-8 Needle bar tread guard 0 0 1 1 0 0
12 1910-05 Needle (1910-05 #14) 1 1 1 1 1 1
13 606648 Presser bar thumb screw & nut assembly 1 1 1 1 1 1
14 606592 Presser bar thumb screw 1 1 1 1 1 1
15 606649 Presser bar thumb screw nut 1 1 1 1 1 1
16 606594 Presser bar 1 1 1 1 1 1
17 606593 Presser bar spring 1 1 1 1 1 1
18 606600 Presser bar bracket assembly 1 1 1 1 1 1
19 606599 Screw 1 1 1 1 1 1
20 606601 Presser bar lifting bracket 1 1 1 1 1 1
21 606650 Presser foot assembly 1 1 0 0 1 1
606651 Presser foot assembly 0 0 1 1 0 0
22 606444 Presser foot screw 1 1 1 1 1 1
23 606652 Needle plate 1 1 0 0 1 1
606402 Needle plate 0 0 1 1 0 0
24 606403 Needle plate screw 1 1 1 1 1 1
25 606653 Bed plate assembly 1 1 1 1 1 1
26 606404 Bed plate 1 1 1 1 1 1
27 606405 Bed plate spring 1 1 1 1 1 1
28 606401 Bed plate screw 2 2 2 2 2 2
29 606654 Slide plate assembly 1 1 1 1 1 1
30 606399 Slide plate 1 1 1 1 1 1
31 606400 Slide plate spring 1 1 1 1 1 1
32 606401 Slide plate spring screw 2 2 2 2 2 2
109 109C 112 112C 309 910
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6.4
Zigzag Trian-
gular Cam
and Hook
Advancing
Crank
Components
25
1
28
6
7
15
16
17
29
2
3
4
5
22
21
20
19
24
18
26
27
12
8
9
10
11
13
14
30
34
32
33
35
31
36
39
38
37
42
41
40
No. Part No. Description
1 606420 Set screw 1 1 1 1 0 0
2 606539 Cam shaft assembly 1 1 1 1 0 0
3 606655 Cam shaft 1 1 1 1 0 0
606655-308 Cam shaft 0 0 0 0 1 0
4 606656 Cam shaft oil wick 1 1 1 1
5 410031 Zigzag cam and gear assembly 1 1 0 0 0 0
410056 Zigzag cam and gear assembly 0 0 1 1 0 0
6 606542 Cam shaft collar assembly 1 1 1 1 0 0
7 606541 Collar set screw 2 2 2 2 0 0
8 606444 Screw 2 2 2 2 0 2
9 606590 Spring washer 2 2 2 2 0 2
10 606589 Washer 2 2 2 2 0 2
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Page 42
6.4
Zigzag Trian-
gular Cam
and Hook
Advancing
Crank
Components
No. Part No. Description
11 606588 Oil felt 1 1 1 1 0 1
12 606657 Oil reservoir assembly 1 1 0 0 0 1
606586 Oil reservoir assembly 0 0 1 1 0 0
13 606658 Oil wick 1 1 1 1 0 1
14 606659 Oil reservoir bracket 1 1 0 0 0 1
15 GW178-8 Spring 0 0 0 0 1 0
16 GR243 Rubber cap 0 0 0 0 1 0
17 GZ222-9 Following shaft 0 0 0 0 1 0
18 GC149-8 Leaning gear 0 0 0 0 1 0
19 GS202-8 Sleeve screw of cam assembly 0 0 0 0 1 0
20 GR461/2-8 Cam assembly 0 0 0 0 1 0
21 GO226-8 Leaning gear sleeve 0 0 0 0 1 0
22 GS166-8 Left-hand screw 0 0 0 0 1 0
24 GS258-8 Screw of drive lever 0 0 0 0 1 0
25 GR458/3-8 Regulator fork drive lever assembly 0 0 0 0 1 0
26 GS202-8 Washer screw 0 0 0 0 1 0
27 GO164-8 Washer of following lever 0 0 0 0 1 0
28 GR460/-8 Following lever assembly 0 0 0 0 1 0
29 GS020 Screw of following lever 0 0 0 0 1 0
30 606664 Slide block cap screw 1 1 1 1 1 0
31 606663 Zigzag stitch regulator fork 1 1 0 0 0 0
606538 Zigzag stitch regulator fork 0 0 1 1 0 0
606663-308 Zigzag stitch regulator fork 0 0 0 0 1 0
32 606545 Fork eccentric connection pin 1 1 1 1 1 0
33 GS256-8 Screw of locating rack 0 0 1 1 0 0
34 GS213-8 Set screw of locating rack sleeve 0 0 1 1 0 0
35 GR390/2-8 Locating rack assembly 0 0 1 1 0 0
36 GZ175-8 Differential connecting shaft 0 0 1 1 0 0
37 GH210/3-8 Differential crank assembly 0 0 1 1 0 0
38 GS216-8 Screw of differential connecting bar 0 0 1 1 0 0
39 GS217-8 Connecting screw for sliding block 0 0 1 1 0 0
40 GH179-8 Differential connecting shaft 0 0 1 1 0 0
41 GO177-8 Differential connecting shaft snap ring 0 0 1 1 0 0
42 GS219-8 Differential connecting bar screw 0 0 1 1 0 0
109 109C 112 112C 309 910
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6.5
Bight Ampli-
tude, Bight
and L-C-R
Position
Components
18
17
16
15
14
19
19
20
22
21
23
24
25
26
1
6
4
5
7
2
3
8
28
1
3
9
10
11
29
2
13
12
32
31
33
30
36
35
37
34
Zigzag Sewing Machine | Instruction Manual and Parts List
27
40
Page 44
6.5
Bight Ampli-
tude, Bight
and L-C-R
Position
Components
No. Part No. Description
1 606511 Screw 2 2 2 2 2 0
2 606571 Washer 2 2 2 2 2 0
3 606569 Stop plate 2 2 2 2 2 0
4 606554 Lever arm regulating screw nut 2 2 2 2 2 0
5 606553 Lever arm regulating screw 2 2 2 2 2 0
6 606572 Screw 2 2 2 2 2 0
7606577 Spring 111110
8 606575 Regulating plate (left) 1 1 1 1 1 0
9 606576 Regulating Plate (right) 1 1 1 1 1 0
10 606574 Regulating plate holder 1 1 1 1 1 0
11 606573 Thumb screw 2 2 2 2 2 0
12606556 Spring 111110
13 606665 B ight amplitude control mech. assembly 1 1 0 0 0 0
606666 Bight amplitude contr ol mech. assembly 0 0 1 1 0 0
14 606667 Slide block & guide assembly 1 1 0 0 0 0
606668 Slide block & guide assembly 0 0 1 1 0 0
15 606546 Slide block 1 1 1 1 0 0
16 606669 Slide block guide assembly 1 1 0 0 0 0
606547 Slide block guide assembly 0 0 1 1 0 0
17 606670 Guide stud set screw 1 1 1 1 0 0
18 606557 Slide block crank assembly 1 1 1 1 0 0
606557-308 Slide block crank assembly 0 0 0 0 1 0
19 606555 Slide block crank set screw 2 2 2 2 2 0
20 606549 Slide block crank link 1 1 1 1 0 0
606549-308 Slide block crank link 0 0 0 0 1 0
21 606671 Hinge screw 2 2 2 2 2 0
22 606551 Position lever arm 1 1 1 1 1 0
23 606552 Guide stud 1 1 1 1 1 0
24606560 Collarassembly 111110
25 606518 Collar set screw 2 2 2 2 2 0
26 606562 Crank shaft bushing 1 1 1 1 1 0
27 554139-383 Crank shaft knob assembly 1 1 1 1 1 0
28 606564 Position block screw 2 2 2 2 0 0
29 606568 Position block screw washer 2 2 2 2 0 0
30 606673 Position block 1 1 0 0 0 0
606563 Position block 0 0 1 1 0 0
31 606674 Position lever screw 2 2 2 2 0 0
32 606566 Position lever assembly 1 1 1 1 0 0
33 606565 Position lever screw pin 1 1 1 1 0 0
34 606675 Position lever screw pin nut 1 1 1 1 0 0
35 606675 Thumb stud nut 1 1 1 1 0 0
36 606676 Thumb stud spring washer 1 1 1 1 0 0
37 554140-383 Thumb stud 1 1 1 1 0 0
109 109C 112 112C 309 910
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6.6
Arm Shaft
(upright) and
Rotating
Hook Drive
Shaft
Components
36
1
35
2
8
3
22
10
11
12
14
33
34
32
29
25
31
23
28
30
28
29
26
27
9
15
21
4
16
5
6
25
7
24
5
18
20
13
17
19
No. Part No. Description
1 541610 Bevel gear assembly (upper) 1 1 0 0 1 1
2 504101 Bevel gear set screw 2 2 0 0 2 2
3 606677 Arm shaft bushing (upper) 1 1 0 0 1 1
4606678 Armshaft(upright) 110011
5 606527 Upright bushing (lower) 1 1 1 1 1 1
6 541609 Bevel gear assembly (lower) 1 1 0 0 1 1
7 504101 Bevel gear set screw 2 2 0 0 2 2
8 606585 Connection screw 0 0 1 1 0 0
9 606536 Hook advance crank connecting rod 0 0 1 1 0 0
10 606535 Bevel gear (upper) 0 0 1 1 0 0
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6.6
Arm Shaft
(upright) and
Rotating
Hook Drive
Shaft
Components
No. Part No. Description
11 606533 Upright bushing (upper) 0 0 1 1 0 0
12 606534 Bushing set screw 0 0 1 1 0 0
13 606679 Clutch sleeve assembly 0 0 1 1 0 0
14 504101 Clutch sleeve (upper) screw 0 0 2 2 0 0
15 504101 Clutch sleeve screw 0 0 2 2 0 0
16 606528 Connecting stud 0 0 1 1 0 0
17 606523 Retaining collar assembly 0 0 1 1 0 0
18 504101 Retaining collar screw 0 0 2 2 0 0
19 543914 Screw gear assembly 0 0 1 1 0 0
20 504101 Gear set screw 0 0 2 2 0 0
21 606537 Arm shaft (upright) assembly 0 0 1 1 0 0
22 606680 Arm shaft oil wick 0 0 2 2 0 0
23 541684 Hook drive shaft bevel gear assembly (back) 1 1 0 0 1 1
24 543944 Hook drive shaft screw gear assembly (back) 0 0 1 1 0 0
25 504101 Hook drive shaft screw gear set screw 2 2 2 2 2 2
26 606681 Hook drive shaft bushing (back) 1 1 0 0 1 1
606525 Hook drive shaft bushing (back) 0 0 1 1 0 0
27 606420 Set screw 1 1 1 1 1 1
28 606523 Retaining collar assembly 1 1 0 0 1 1
606523 Retaining collar assembly 0 0 2 2 0 0
29 504101 Retaining collar screw 2 2 0 0 2 2
504101 Retaining collar screw 0 0 4 4 0 0
30 606682 Hook drive shaft 1 1 0 0 1 1
606526 Hook drive shaft 0 0 1 1 0 0
31 606522 Hook drive shaft bushing (fr ont) 1 1 1 1 1 1
32 606420 Set screw 1 1 1 1 1 1
33 541685 Hook drive shaft bevel gear assembly (front) 1 1 1 1 1 1
34 504101 Bevel gear screw 2 2 2 2 2 2
35 606523 Arm shaft (upright) collar assembly 1 1 0 0 1 1
36 504101 Arm shaft (upright) collar screw 2 2 0 0 2 2
35 606675 Thumb stud nut 1 1 1 1 0 0
36 606676 Thumb stud spring washer 1 1 1 1 0 0
37 554140-383 Thumb stud 1 1 1 1 0 0
109 109C 112 112C 309 910
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Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 47
6.7
Hook and
Bobbin Case
Components
1
2
2
2
4
1
3
6
5
2
6
7
8
9
14
16
17
10
12
11
13
15
Zigzag Sewing Machine | Instruction Manual and Parts List
44
Page 48
6.7
Hook and
Bobbin Case
Components
No. Part No. Description
1 606517 Hook shaft collar assembly 2 2 2 2 2 2
2 606518 Hook shaft collar screw 4 4 4 4 4 4
3 606516 Set screw 1 1 1 1 1 1
4 606519 Hook shaft bushing (short) 1 1 1 1 1 1
5 541689 Bevel gear assembly 1 1 1 1 1 1
6 504101 Bevel gear screw 2 2 2 2 2 2
7 606516 Set screw 1 1 1 1 1 1
8 606515 Hook shaft bushing (long) 1 1 1 1 1 1
9 606520 Hook shaft 1 1 1 1 1 1
10 606410 Gear shield 1 1 1 1 1 1
11 606444 Screw 1 1 1 1 1 1
12 606513 Bobbin 1 1 1 1 1 1
13 606683 Rotating hook assembly 1 0 0 0 1 1
606683C Rotating hook assembly 0 1 0 0 0 0
606514 Rotating hook assembly 0 0 1 0 0 0
606514C Rotating hook assembly 0 0 0 1 0 0
14 606684 Rotating hook set screw 2 2 2 2 2 2
15 606512 Bobbin case assembly 1 1 1 1 1 1
16 606510 Hook position finger 1 1 1 1 1 1
17 606511 Position finger screw 1 1 1 1 1 1
109 109C 112 112C 309 910
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Zigzag Sewing Machine | Instruction Manual and Parts List
45
Page 49
6.8
Feed Regulat-
ing Dial and
Feed Reverse
Lever
Components
7
1
10
9
8
12
13
12
11
14
17
11
23
24
22
18
3
4
2
6
5
16
32
15
31
19
20
26
21
25
29
30
34
27
28
33
Zigzag Sewing Machine | Instruction Manual and Parts List
46
Page 50
6.8
Feed Regulat-
ing Dial and
Feed Reverse
Lever
Components
No. Part No. Description
1606618 Spring 111110
2 606617 Stud lock pin 1 1 1 1 1 0
3 606609 Feed regulating stud 1 1 1 1 1 0
4 554138-383 Feed regulation dial 1 1 1 1 1 0
5 543803-004 Dial screw washer 1 1 1 1 1 0
6 544218-053 Dial screw 1 1 1 1 1 0
7 606610 Hinge stud 1 1 1 1 1 0
8 606685 Feed regulator & fork assembly 1 1 1 1 1 0
9 606611 Feed regulator assembly 1 1 1 1 1 0
10 606686 Screw 1 1 1 1 1 0
11606494 Hingescrewnut 111110
12 606496 Hinge screw 2 2 2 2 2 0
13 606495 Feed connecting link 2 2 2 2 2 0
14 606509 Feed fork connection. 1 1 1 1 1 0
15 606496 Hinge screw 1 1 1 1 1 0
16606494 Hingescrewnut 111110
17 606615 Reverse lever link assembly 1 1 1 1 1 0
18 606434 Clamp screw 1 1 1 1 1 0
19606612 Spring 111110
20606614 Springbracket 111110
21 606602 Screw 1 1 1 1 1 0
22 554131-467 Reverse lever assembly 1 1 1 1 0 0
551131-467 Reverse lever assembly 0 0 0 0 1 0
23 374564 Adjusting screw 1 1 1 1 0 0
24 554134 Adjusting screw friction 1 1 1 1 0 0
25 554136 Indicator plate 1 1 1 1 0 0
26 504010-453 Indicator plate screw 2 2 2 2 0 0
27 554135 Adjusting screw stopper 1 1 1 1 0 0
28 544213-001 Stopper set screw 1 1 1 1 0 0
29 53C/7-1 Stitch length crank 0 0 0 0 0 1
30 53C/7-2 Stitch length crank connecting rod 0 0 0 0 0 1
31 53C/7-3 Connecting screw pin 0 0 0 0 0 1
32 GB/T896-1986 E ring 0 0 0 0 0 1
33 GB/T6713-2000 Nut 0 0 0 0 0 4
34 53C/7-4 Stitch length link 0 0 0 0 0 1
109 109C 112 112C 309 910
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Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 51
6.9
Feed
Mechanism
Components
13
17
16
15
16
17
14
12
19
18
18
19
11
21
7
10
10
3
2
1
4
20
11
6
5
9
8
Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 52
6.9
Feed
Mechanism
Components
No. Part No. Description
1 606493 Connecting rod assembly 1 1 1 1 1 1
2 606434 Connecting rod cap screw 2 2 2 2 2 2
3606492 Oilfelt 111111
4 606496 Hinge screw 1 1 1 1 1 1
5 606494 Hinge screw nut 1 1 1 1 1 1
6 606507 Feed lifting rock shaft assembly 1 1 1 1 1 1
7 606687 Roller and Stud 1 1 1 1 1 1
8 606508 Lifting rock shaft crank assembly 1 1 1 1 1 1
9 606500 Crank clamping screw 1 1 1 1 1 1
10 606497 Screw center 2 2 2 2 2 2
11 606498 Screw center nut 2 2 2 2 2 2
12 606505 Feed rock shaft 1 1 1 1 1 1
13 606499 Feed rock shaft crank assembly 1 1 1 1 1 1
14 606500 Crank clamping screw 1 1 1 1 1 1
15 606506 Feed bar 1 1 1 1 1 1
16 606503 Screw center 2 2 2 2 2 2
17 606504 Screw center nut 2 2 2 2 2 2
18 606497 Screw center 2 2 2 2 2 2
19 606498 Screw center nut 2 2 2 2 2 2
20 606688 Feed dog 1 1 0 0 1 1
606502 Feeddog 001100
21 606501 Feed dog screw 2 2 2 2 2 2
109 109C 112 112C 309 910
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Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 53
6.10
Presser Bar
Lifter and
Thread
Tension
Components
25
8
7
23
18
19
15
17
12
9
10
13
1
20
16
3
21
14
22
4
24
26
30
27
28
29
27
11
2
6
5
31
Zigzag Sewing Machine | Instruction Manual and Parts List
50
Page 54
6.10
Presser Bar
Lifter and
Thread
Tension
Components
No. Part No. Description
1 606598 Hand lifter lever 1 1 1 1 1 1
2 606597 Hand lifter lever pin 1 1 1 1 1 1
3 606599 Screw 1 1 1 1 1 1
4 606413 Tension release lever 1 1 1 1 1 1
5 606412 Tension release lever screw spring 1 1 1 1 1 1
6 606411 Tension release lever screw 1 1 1 1 1 1
7 410413 Thread retainer 1 1 1 1 1 1
8 606518 Thread retainer screw 1 1 1 1 1 1
9 606416 Thread guide 1 1 1 1 1 1
10 606444 Thread guide screw 1 1 1 1 1 1
11 606414 Thread guard pin 1 1 1 1 1 1
12 606689 Tension assembly 1 1 1 1 1 1
13 606425 Tension disc 2 2 2 2 2 2
14 606426 Tension releasing disc 1 1 1 1 1 1
15 606418 Tension release pin 1 1 1 1 1 1
16 606427 Tension spring 1 1 1 1 1 1
17 606422 Thread Take-up Spring 1 1 1 1 1 1
18 606419 Tension base assembly 1 1 1 1 1 1
19 606421 Tension securing screw 1 1 1 1 1 1
20 606424 Tension stud 1 1 1 1 1 1
21 606429 Thumb nut 1 1 1 1 1 1
22 606428 Thumb nut washer 1 1 1 1 1 1
23 600420 Set screw 1 1 1 1 1 1
24
606607 Lifting lever 1 1 1 1 1 0
53C/6-1 Lifting lever 0 0 0 0 0 1
25 606608 Hinge screw 1 1 1 1 1 1
26 606605 Connecting r od 1 1 1 1 1 1
27 606604 Connecting r od pin 2 2 2 2 2 2
28 606606 Connecting r od 1 1 1 1 1 0
29 606604 Connecting r od pin 1 1 1 1 1 0
30 606603 Bell crank assembly 1 1 1 1 1 1
31 606602 Screw 2 2 2 2 2 2
109 109C 112 112C 309 910
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Zigzag Sewing Machine | Instruction Manual and Parts List
51
Page 55
6.11
Feed
Mechanism
Components
for 20E-910
only
3
4
1
8
2
5
13
14
9
7
10
6
11
12
Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 56
6.11
Feed
Mechanism
Components
for 20E-910
only
No. Part No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
53C/7-11
50020004
53C/7-5
50020029
53C/7-2
500B0015
53C/7-7
53C/7-6
53C/7-8
50020023
53C/7-10
10.5-26
53C/7-9
50020011
Feed pulse motor 0 0 0 0 0 1
Screw 000004
Motor base for feeding pulse motor 0 0 0 0 0 1
Screw 000003
Feed regulator connecting bar pin 0 0 0 0 0 1
Screw 000001
Feed pulse motor crank pin 0 0 0 0 0 1
Feed pulse motor crank 0 0 0 0 0 1
Feeding sensor shade 0 0 0 0 0 1
Screw 000001
Feeding sensor 0 0 0 0 0 1
Screw 000001
Bracket 000001
Screw 000001
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109 109C 112 112C 309 910
Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 57
6.12
Needle Bar
Vibration
Components
for 20E-910
only
16
17
15
14
13
4
3
2
1
5
8
12
6
7
10
11
9
No. Part No. Description
1
W34
2
53C/5-12
3
GB/T70.1-2000
4
53C/5-8
5
53C/5-7
6
50020029
7
53C/5-2
8
50031003
9 53C/5-1 Fork of horizontal needle 0 0 0 0 0 1
10
53C/5-4
11
50020029
12
53C/5-14
13
53C/5-5
14
53C/5-15
15
500B0015
16
53C/5-9
17
10.2-37
Screw 000002
Needle bar vibrating motor cover 0 0 0 0 0 1
Screw 000001
Needle bar vibrating pulse motor 0 0 0 0 0 2
Needle bar vibrating motor frame 0 0 0 0 0 1
Screw 000003
Needle bar vibrating base 0 0 0 0 0 1
Screw 000004
Needle bar vibrating shade 0 0 0 0 0 1
Screw 000001
Limiting stopper of needle bar vibrating sensor
Mounting plate of needle bar vibrating sensor
Screw 000002
Screw 000001
Needle bar vibrating sensor 0 0 0 0 0 1
Screw 000001
Zigzag Sewing Machine | Instruction Manual and Parts List
109 109C 112 112C 309 910
000001
000001
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Page 58
6.13
Control
System
Components
for 20E-910
only
1
5
3
2
6
4
No. Part No. Description
153C/8-2 Controlbox 0 0 0 0 0 1
2 53C/8-5 Operation panel 0 0 0 0 0 1
3 53C/8-4 Operation panel cable 0 0 0 0 0 1
4 53C/5-18 Operation panel bracket 0 0 0 0 0 1
5 GB/T845 Screw 0 0 0 0 0 4
6W34 Screw 000004
Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 59
6.14
Thread Stand
Components
Zigzag Sewing Machine | Instruction Manual and Parts List
56
Page 60
6.14
Thread Stand
Components
No. Part No. Description
1 30102032 Thread bar (lower) 1 1 1 1 1 1
2 30128024 Washer 2 2 2 2 2 2
3 10128006 Rubber washer 1 1 1 1 1 1
4 N02001 Nut 1 1 1 1 1 1
5 30101029 Bracket (2 spools) 1 1 1 1 1 1
6 30103044 Spool holder 2 2 2 2 2 2
7 30102033 Spool pin 2 2 2 2 2 2
8 30123014 Cushion 2 2 2 2 2 2
9 30111007 Spool tray 2 2 2 2 2 2
10 W02002 Spring washer 2 2 2 2 2 2
11 N01005 Nut 2 2 2 2 2 2
12 L02004 Screw 1 1 1 1 1 1
13 N01004 Nut 4 4 4 4 4 4
14 S04002 Screw 4 4 4 4 4 4
15 30129005 Joint 1 1 1 1 1 1
16 30102034 Thread bar (upper) 1 1 1 1 1 1
17 30103045 Thread guide hole 2 2 2 2 2 2
18 30101031 Thread guide bar (2 spools) 1 1 1 1 1 1
20 30122027 Rod cap 1 1 1 1 1 1
109 109C 112 112C 309 910
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Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 61
6.15
Accessories
and
Attachments
16
2
1
13
17
28
23
19
20
22
24
25
27
12
10
15
14
11
4
21
6
3
9
5
7
8
26
Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 62
6.15
Accessories
and
Attachments
No. Part No. Description
1 606690 Accessory box 1 1 1 1 1 1
2 1910-05 Needle (1910-05 #14) 3 3 3 3 3 3
3606691 Zipperfoot 111100
4 606692 Presser foot assembly (for button holing) 1 1 1 1 0 0
5 606693 Presser foot assembly (for straight stitching) 1 1 1 1 0 0
6 606694 Hemmer foot assembly 1 1 1 1 0 0
7 606695 Needle plate (for straight stitching) 1 1 1 1 0 0
8 606696 Needle plate (for embroidery) 1 1 1 1 0 0
9 606697 Feed dog (for straight stitching) 1 1 1 1 0 0
10 606513 Bobbin 2 2 2 2 2 2
11 606698 Oiler 1 1 1 1 1 1
12 606699 Machine rest pin 1 1 1 1 1 1
13 606700 Screw driver(large) 1 1 1 1 1 1
14 606701 Screw driver(small) 1 1 1 1 1 1
15 606702 Screw driver(for needle plate) 1 1 1 1 0 1
16 606703 Thread spool cap 2 2 2 2 0 2
17 606704 Thread anti-spill net 2 2 2 2 0 2
19 606706 Drip pan 1 1 1 1 1 1
20 606707 Drip pan nail 4 4 4 4 4 4
21606708 Kneelifterassembly 111101
GR759/25-8 Knee lifter assembly 0 0 0 0 1 0
22 606709 Machine hinge 2 2 2 2 1 2
23 606710 Machine hinge cushion 2 2 2 2 1 2
24 606711 Machine cushion 4 4 4 4 1 4
25 606707 Nail 6 6 6 6 1 6
26 53C5-21 Knee lifter assembly 0 0 0 0 0 1
27 GB/T845 Screw 4 4 4 4 4 4
28 281822 Finger guard 1 1 1 1 0 0
109 109C 112 112C 309 910
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Zigzag Sewing Machine | Instruction Manual and Parts List
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Page 63
6.16
Belt Cover
Components
and Extra
Parts
1
16
15
6
5
3
2
7
9
10
4
8
No. Part No. Description
1 281840-383 Belt cover assembly 1 1 1 1 1 1
2 281833-383 Belt cover (upper) 1 1 1 1 0 1
3 281834-383 Belt cover (upper) cover 1 1 1 1 0 1
4 549116 Belt cover (upper) screw 1 1 1 1 1 1
5 504063-451 Belt cover (upper) screw 2 2 2 2 2 2
6 543875-104 Belt cover (upper) screw washer 2 2 2 2 2 2
7 544241 Belt cover (upper) screw stud 1 1 1 1 1 1
8 281835-383 Belt cover (lower) 1 1 1 1 1 1
9 549398 Belt cover (lower) wood screw 2 2 2 2 2 2
10 543803-003 Belt cover (lower) wood screw washer 2 2 2 2 2 2
15 281833-308 Belt cover (upper) 0 0 0 0 1 0
16 281834-308 Belt cover (upper) cover 0 0 0 0 1 0
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Page 64
P/N 364338-001
SINGER and the Cameo "S" Design are exclusive trademarks of The Singer Company Limited S.à r.l. or its Affiliates.
©2011 The Singer Company Limited S.à r.l. or its Affiliates. All rights reserved.
www.singer.com
Rev 1 - Sept. 2011
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