INSTRUCTIONS
ZIG-ZAG SEWING MACHINE
P/N 59950
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TABLEOF
CONTENTS
Adjusting for Good Stitches ............... 14
Adjusting Pressure of
Presser Foot ..................... 10
Adjusting Tensions ........................ 12-13
Applique ............................................. 26
Mending ................................................ 22
Narrow Hemming- 1/4 tl or Less ...... 26
Needle and Thread Table .................. 5
Needle Size .......................................... 5
Basting ................................................ 16
Buttonholes .................................... 24 -25
Buttons ................................................ 23
Changing Attachment Foot ............... 1!
Cleaning and Oiling ........................ 33- 35
Connecting Machine ........................... 4
Decorative Stitching ..................... 18-21
Double Needle ................................. 30- 31
Dual Purpose Needle Plate ............... 11
Fastening a Seam ................................. 16
Feed Dog Control .............................. 10
Gathering ............................................. 27
Hems- Blind Stitch Hem ............... 28 - 29
Identification- Head Parts ............... 2- 3
Inserting Bobbin into
Bobbin Case ..................... 8
Inserting and Removing Material ...... 15
Inserting Pattern Disc ........................ 17
Installing Machine Head ..................... 4
Overcasting .......................................... 27
Parts List ....................................... 38- 39
Picking up Bobbin Thread .................. l0
Placement of Needle ........................... 5
Removing Bobbin Case
from Shuttle .................. 6
Replacement of Belt ........................... 33
Reverse Stitching ................................. 16
Setting Stitch Length ........................ 16
Setting Stitch Width ........................... 17
Sewing Light ....................................... 4
Sewing on Lace .................................... 26
Sewing on Plastic Films ..................... 32
Straight or Three-Cornered Tear ...... 23
Synthetics ............................................. 32
Threading Upper Machine .................. 9
Turning a Corner .............................. 16
What To Do .................................... 36-37
Winding the Bobbin ........................... 7
Writing and Monogramming ............... 27
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FRONT VIEW
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1. Hand Hole Cover Plate
2. Presser Foot
3. Presser Foot Screw
4. Thread Guide
5. Thread Guide
6. Thread Tension Assembly
7. Thread Guide
8. Face Cover Plate
9. Thread Take-up
10. Pattern Disc Shaft Cover
11. Stitch Width Control Knob
12. Stitch Length Control Knob
13. Reverse Stitch Push Button
14. Light Switch
15. Feed Dog Control Knob
16. Nomenclature Plate
Model 54
BACK VIEW
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17. Clutch Knob
18. Hand Wheel
19. Bobbin Winder Mechanism
20. Thread Spool Pins
21. Arm Cover Plate
22. Bobbin Winder Tension Disc
23. Upper Thread Guides
24. Presser Foot Knob
25. Presser Foot Lever
26. Noodle Clamp Screw
27. Thread Cutter
28. Feed Dog
29. Needle Plate
30. Guido Pin Hole for
Buttonhole Attachment
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INSTALLINGMACHINEHEAD
Loosen the two hinge screws under holes in the
rear edge of the machine bed (1).
Raise hinge pins in the cabinet cutout (2].
Slip machine head onto the pins and tighten hinge
screws securely (3].
Lower machine head to front flap.
Screw spool pins in place. Lay the plastic discs
over the spool pins. Discs and pins are packed in
the accessory box.
SEWINGLIGHT
The sewing light is located inside the face cover
plate as shown. It may be turned on or off by
pushing the light switch. In order to operate the
machine the switch must be on.
To remove bulb, turn light switch off, open the
face cover plate by swinging it open, push bulb in
slightly, turn bulb clockwise, and remove from
socket. To replace push in new bulb and turn
counter clockwise. See illustration 4.
CONNECTINGMACHINE
Push the plug onto three-prong connector under
the bed plate. Plug machine cord into any l10-
120V wall outlet. See illustration 5.
NEEDLEANDTHREADTABLE
THREAD SIZE
Cotton 60- 100
Synthetic
Silk A
Cotton 60-80
Mercerized 50
Synthetic
Silk A
Cotton 40- 60
Mercerized 50
Mercerized heavy duty
Cotton 30-50
Mercerized heavy duty
NEEDLE
SIZE
11
14
16
18
FABRIC
Sheer cottons, silks, and synthetics
Fine laces
Medium weight cottons
Medium weight silks
Medium weight synthetics
Light weight woolens
Heavy weight cottons
Medium to heavy weight woolens
Heavy drapery fabrics
Heaviest cottons as for men's work clothes
Heaviest wooJen coating
NEEDLESIZE
Use KENMORE 6021 needles. The size of needle should
conform to the size of the thread and both should be suit-
able to the material. The same size thread should be used
in the bobbin as on the upper part of the machine for
ordinary sewing.
Never use a bent needle or one with a blunt point.
This is the exact length of the needle to
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be used in your machine. Comparison with
this illustration will determine whether the
needle you have is the correct one for
your machine.
PLACEMENTOFNEEDLE
Raise needle bar to its highest
position by turning hand wheel
toward you. Loosen needle
clamp screw.
Hold the needle with flat side
away from you. Slip the needle
as far as it will go into the needle
clamp, and tighten the needle
clamp screw.
Flat
side
away
from
you.
Needle il !__
at its _
highest _ i'_! "_
position. .!! i II
£ i__i) .........'!12_ latch,out
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Pull bobbin case
straight ont.
REMOVINGBOBBINCASEFROM
SHUTTLE
WINDINGTHE BOBBIN
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Place thread on left
spool post. Draw J
thread as shown.
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Wind thread around
bobbin a few times.
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Place bobbin onto
bobbin winder shaft.
Push bobbin winder
latch until it clicks.
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Release clutch by
turning clutch knob
toward you.
Start machine.
When bobbin is full,
winding mechanism
stops.
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Tighten clutch knob
and remove bobbin.
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INSERTINGBOBBININTOBOBBINCASE.........CASEINTOSHUTTLE
Guide bobbin onto center pin of bobbin case.
Pull thread through slot.
Pull thread under tension spring.
Holding latch, position case into shuttle, release latch.
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THREADINGUPPERMACHINE
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PICKINGUPBOBBINTHREAD
Raise presser foot lever. Hold needle thread loosely in
left hand and rotate hand wheel toward you one complete
turn. Bring bobbin thread up by pulling upper thread
CSee illustration]. Place threads back under presser foot.
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ADJUSTINGTHEPRESSUREOFTHEPRESSERFOOT
Push down outer ring of presser foot knob CSee illustra-
tion]. This will release pressure of presser foot. To
increase pressure, push down inner pin until suitable
pressure is obtained.
For ordinary sewing, the inner pin should be about half
way down. When sewing multiple thickness or heavy
material, reduce the pressure. Increase it when sewing
sheer fabrics.
Insufficient pressure may cause skipped stitches or difficul-
ty in guiding the fabric. If feed dog or presser foot
marks appear on the fabric, reduce the pressure.
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FEEDDOGCONTROL
The feed dog control knob is situated on the right front
of machine bedplate. When knob is turned to the left,
feed dog drops and does not pull material. This allows
the operator freedom of movement of material, as for
darning. For regular sewing, turn knob to the right, _U"
(Feed dog up).
DUALPURPOSENEEDLEPLATE
The dual purpose needle plate provides a small round needle hole (A) for
straight stitching and a wide oval hole (B) for zigzag and decorative
stitching on the center plate (C).
To slide center plate for model 16 and 54, remove hand hole cover plate and
move lever (D) to left for straight stitching and right for zigzag stitching
until it clicks.
To reverse center plate for model 1749, remove hand hole cover plate,
depress slightly and move lever (D) to the right; this releases center plate
so it can be removed. Reverse and reposition center plate, locking it into
place by moving lever (D) to the left.
CHANGINGTHEATTACHMENTFOOT
Be sure needle is in the up position. Raise presser foot lever.
Snap-on presser feet
1. Push the relase button on back of damping shank and the foot will be
released (Fig. 1).
2. Place the desired foot on the needle plate aligning the needle holes and
lower the presser bar by dropping the presser foot lever. The clamping
shank will snap on the foot.
Note: The presser foot knob should be down for maximum pressure when
attaching foot.
One-piece presser feet
1. Loosen presser foot thumb screw and remove the damping shank or
presser foot.
2. Insert the desired foot from the front. Lower the presser foot lever and
tighten the screw using the large screw driver to make certain the foot
is secure.
For straight stitching For zigzag stitching
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Fig. 1
ADJUSTINGTENSIONS
A perfect stitch will have threads locked between the
two layers of fabric with no loops on top or bottom.
CRefer to page 14]
PROBLEM REMEDY
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Fig. 2
Fig. 3
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Upper thread too tight
Upper thread too loose
Decrease Tension
Increase Tension
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When stitching is unsatisfactory as
in figures 2 and 3, adjust the upper
thread tension. Lower thread tension
requires adjustment less frequently
than the upper thread tension.
iNCREASETENSION
When stitch is satisfactory, as in
figure 1 and seam is badly puckered,
the cause may he tight tensions and
both upper and lower may be
adjusted. (See page 14]
When adjusting the tension on the
bobbin case, make slight adjustments
with a screwdriver. (See page 14)
It is necessary to reduce the upper
thread tension somewhat when doing
decorative stitching. The wider the
stitch the less tension is needed. (See
page 18]
Turn Clockwise.
DECREASETENSION
Turn Counter
Clockwise.
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ADJUSTING YOUR SEWING MACHINE FOR GOOD STITCHES
When your sewing machine does not sew a properly locked stitch, check the following :
1. Insert a new needle of the correct size for the thread and fabric you are using.
Consult chart on page 5 for needle size.
2. The upper and bobbin thread should be matched in size and type.
3. Check threading carefully. See page 9.
4. Check the thread tension balance. Use mercerized thread, and a correct size needle
for the fabric you are using. Do not try test with synthetic thread as it will not
break.
Begin with a full bobbin, properly threaded into the case. Set the stitch length at
about 12 stitches per inch. Fold a 6 r_ square of your fabric in half diagonally,
forming a triangle. Make a line of stitching ½t_from fold.
a. If seam is puckered-both tensions are too tight.
b. If the bottom thread lays on the fabric-tighten upper thread tension, and
repeat test. See page 12, Figure 3.
c. If the top thread lays on the fabric-loosen upper thread tension, and repeat
test. See page 12, Figure 2.
Grasp the stitching and pull with a snap to make threads break.
a. If both threads break-tensions are balanced.
b. If neither thread breaks-both tensions are too loose.
c" If upper thread breaks-loosen upper tension.
d. If lower thread breaks-tighten upper tension.
Both threads do not have to break at the same place, but they should break on the
same snap.
Bobbin tension may be reset by the following procedure. Start with a loose bobbin
thread tension. Tighten the spring screw gradually until bobbin case and full bobbin
can be gently lifted from your hand by the end of the bobbin thread.
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INSERTINGANDREMOVINGTHEMATERIAL
For all kinds of sewing, consult chart page
5.
Before placing the material on the machine
see that:
* The presser foot and needle clamp screws
are both tight.
* The sizes of the needle and thread suit the
kind of work to be done.
* The needle and take-up lever are at their
highest position.
* The tensions have been properly adjusted.
*The ends of threads have been drawn
about 4 inches to the rear of the machine.
* The feed dogs are up.
* Stitch length and width controls are set at
desired settings.
Experiment by sewing on the fabric to be
used to determine tension adjustments and
correct stitch settings.
Place material under the presser foot, insert
the needle into the material by turning the
hand wheel toward you, lower presser foot
and start sewing. To facilitate placement of
heavy fabrics under the presser foot, the
presser foot lever can be raised beyond the
normal _'up" position.
To remove the work, first turn the hand
wheel toward you until the needle is at its
highest position, then raise the presser foot,
draw material to the rear and cut off excess
thread with the thread cutter located on the
presser bar.
IMPORTANT: Always turn the hand wheel
toward you ! When the machine is not being
used, place a piece of material over the feed
dog and lower the presser foot. Always
have fabric under the presser foot when
operating the machine. Operating threaded
machine without fabric will cause it to jam
by forcing thread into the shuttle. See pages
34 & 35.
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SETTING
STITCH
LENGTH
Turn stitch length control knob to the desired
point between 0 and 5. The red mark indicates the
setting for a satin stitch. This will vary slightly
depending upon the type of material to be sewn.
The 5 setting is the longest stitch. The size of
the stitch selected will depend on the fabric sewn.
REVERSE
STITCHING
TURNINGA
CORNER
BASTING
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Push button when reverse stitching is required.
Reverse stitching, often called back tacking is used
for reinforcing and finishing all seams.
Stop sewing machine with needle in fabric. Raise
presser foot. Turn fabric. Lower presser foot
and continue stitching.
For accomplishing quicker, more even and firmer
basting, we suggest you regulate the machine in
the following manner; Set stitch length at No. 5
for the longest possible stitch. Basting is easily
removed by pulling bottom thread. When basting
very sheer fabrics, use a paper backing.
Be sure both threads are drawn back under the
FASTENING
A
SEAM
presser foot. Lower needle into fabric about ½ inch
from beginning of seam. Push button and stitch in
reverse until needle reaches beginning of seam.
Release button and complete seam.
When you reach the end, push button and sew back
over ½ inch of completed seam.
SETTINGSTITCHWIDTH
Insert disc No. 1A. Turn the stitch width control knob to the
desired setting between 0 and 5 on the knob. Zigzag stitch
width increases from 0 to 5. Straight stitching is possible
with control on 0 setting or by removal of pattern disc.
Be sure the dual purpose needle plate is set properly.
(See page 11).
When sewing with the double needle the stitch width control
must not be advanced beyond 3_ setting.
INSERTINGPATTERNDiSC
1. Turn handwheel so that the needle is in its highest position.
2. Pull pattern disc shaft cover open.
3. Push cam follower release lever @ to the right and keep it
there during insertion. See illustration 1.
4. Grasp pattern disc and slip disc onto the shaft. Make sure
the retaining pin _) enters hole in disc.
5. To begin a pattern at a specific point each time, push the
cam follower release lever to the right with one hand,
depress the retaining pin. Turn the cam so that the white
dot engraved on the disc is aligned with the point on the
cam follower ©. See illustration 2. Shut cover.
6. To remove pattern disc, open cover and pull disc from the
shaft.
There are two different patterns on each disc. A picture of
each pattern is on the disc surface. Position disc into machine
with desired pattern facing up.
ZIGZAGCONTROL
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DECORATIVESTITCHING
This machine enables you to sew beautiful decorative and embroidery stitches by means of
various discs supplied with your machine. The movements of the needle are controlled by
the disc. Basic decorative stitches are made with stitch width at 5 and stitch length at the
red marking on the dial. The latter will vary slightly depending upon the type of material
to he sewn. All patterns also can be made with double needle. See page 31. Pattern will
be changed if using any other length or width. Decorative stitch No. 1A is generally
referred to as the satin stitch.
It is necessary to reduce the top tension somewhat for decorative stitching. As the stitch
width is increased, the tension should be decreased. This will prevent the material from
puckering and will prevent the bobbin thread from coming up on the top of the fabric.
REMEMBERTHEFOLLOWINGREFERENCES
1. Pattern disc, pattern and number engraved on it .......................................... 17
2. Stitch length control knob .............................................................................. 16
3. Stitch width control knob ................................................................................. 17
4. Double needle ............................................................................................. 30- 31
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1A 1B 2A 2B 3A 3B 4A 4B 5A
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5B 6A 6B 7A
8A 8B 9A 9B
,------..
10A 10B 11A 11B 12A 12B 13A 13B
F _ 21
MENDING
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DARNING st,,°h, dth o
Remove presser foot. Stretch fabric between embroidery
hoops and place under needle. Draw the bobbin thread
up through fabric by holding the upper thread and taking
one stitch at the spot where you wish to begin darning.
Lower presser bar. Start sewing at a medium machine
speed. Move the fabric back and forth with a steady
rhythm to cover the darning area. Then turn the fabric
and sew another layer of stitching at right angles to the
first. Move the fabric fast for long stitches, slowly for
short stitches.
If you wish to darn without using embroidery hoop, leave
the presser foot attached, move feed dog control to the
left, and push down outer ring of presser foot knob,
thereby the pressure on the presser foot is released. Then
proceed as above, stretching fabric tightly between hands.
Feed clog controJ Left
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BUTTONS d s:
Align two holes of button with slot of presser foot and
lower foot to hold button securely. Drop feed dog.
Turn hand wheel by hand until needle point is just
above button. Adjust stitch width so that needle will
align with a hole of button. Turn hand wheel again by
hand so that needle goes into second hole, readjust
stitch width if necessary. Stitch a number of times,
turning hand wheel manually. Finish with an extra 2
inches of thread, draw thread to reverse side and tie
securely.
If using a 4 hole button repeat the above procedure.
NOTE : To make a small thread shank when sewing
on a flat button, place a straight pin or needle
between the holes of the button.
STRAIGHTORTHREE-CORNEREDTEAR
Stitch width 3 - 4
Stitch length at red mark
Pattern disc #4A (Model 16, 1749, 542)
Position tear under needle and stitch along the straight
tear catching sides of material. When mending a three
cornered tear, stitch from each end to center.
# 1A (Model 540,541 )
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BUTTONHOLES
Use disc :_ 1A
Stitch width knob-Red zone
Feed dog control- Left
Cover plate for buttonholes
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Remove regular cover plate
and insert buttonhole cover
plate.
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Pinion gear
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Template
Guide pin
Guide plate
Select desired template and
snap into guide plate.
Pull guide plate all the way
forward so that guide pin is
at S. This will enable you to
start at one end of the button-
hole. Screw guide pin on
guide plate into guide pin hole
on machine bed.
Drop guide plate into place
with template fitting over the
pinion gear.
HINTSFORPERFECTBUTTONHOLES
Pickupbobbinthreadthrough
guideplateanddrawthreads
toward back. Place material
on the guide plate. Drop
presser foot and start sewing.
Buttonhole will be formed.
The buttonhole size and shape
is not influenced by the stitch
length knob so it may he set
on any position.
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An occasional drop of oil on
the oiling hole provided on
the back of the buttonhole
cover plate will provide
smooth operation of your
buttonhole maker.
Mark the position of each
buttonhole on the garment
with chalk or a line of basting.
Loosely woven fabrics and
fabrics that stretch easily such
as jersey should have an inter-
facing of a firm fabric. Use
cambric or taffeta between
woolens and rayons-organdy
or lawn between light weight
and sheer fabrics.
Use buttonhole scissors or
buttonhole cutter to cut
buttonhole open.
Always make a practice
buttonhole on a piece of the
fabric to be used in the
garment.
A wider stitch width may be
desirable on heavy weight
fabrics.
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APPLIQUE Used,sc_IA
Baste cutout applique to fabric. Set stitch width 2
to 4. Set stitch length at the red marking. Zigzag
stitch around applique completely covering the raw
edge.
SEWINGONLACE Usedisc_IA
Set stitch width to 2. Set stitch length to 2 or 3.
Place fabric under the presser foot and position lace
1/44inch from edge of fabric. Position fabric and lace
so that right stitch catches left edge of lace. Continue
stitching so that edge of lace is overcast.
NARROWHEMMING-I/4"ORLESS
Presser Foot - Zigzag
Needle Plate Hole- Zigzag slot
Stitch Width - 5
Stitch Length-2 to 4
Remove zigzag disc from machine. Place fabric with
bulk of garment to left of foot and the edge of hem
directly beneath needle. Straight Stitch. Use
transparent plastic foot, if available, for improved
visibility.
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OVERCASTING05°d,sc.-,A
Both length and width settings may be varied depending on
fabric used. Zigzag stitch around raw edge of fabric to com-
pletely cover the edge.
GATHERING
Attach gathering foot. (See page ll). Set machine for straight
stitching and test gathers on a scrap of the same fabric yon
plan to use. Fullness will depend largely on thread tension and
length of stitch. For slight fullness, tighten thread tension and
set stitch length for ordinary sewing. For greater fullness,
lengthen stitch and keep tight thread tension. Fullness will vary
with different fabrics.
WRITINGANDMONOGRAMMINGOsedisc
Free hand
Stitch width 0 to 5
Feed dog control Left
Draw initials or words to be sewn on fabric and fit fabric
into embroidery hoops. Writing is done with either zigzag or
straight stitching. Remove presser foot. Set stitch width for
straight or zigzag stitches as desired. Slip hoop and fabric
under the needle, lower presser bar and take one stitch to raise
bobbin thread through fabric. Using a medium speed, stitch
along marked outline, guiding fabric carefully by hands.
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HEMS
BLINDSTITCHHEM
Disc _IB
Stitch width 2-3
Stitch length 2-4
28
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1. Prepare the hem with a
turned and edgestitched
finish, or
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L
2. Apply seam tape along
the raw edge with either
straight or zigzag stitch-
ing.
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3. Turn hem and baste 1/8
inch from the edge of the
seam tape using longest
stitch on sewing machine.
4. Fold garment back along
basting line and stitch
along garment fold using
disc #lB.
5. Remove basting and press
hem. The basting step
may be eliminated in a
straight hem.
29
DOUBLENEEDLE
SETTINGTHEDOUBLENEEDLE
Raise the needle bar to its highest position and loosen needle
clamp screw. Hold double needle assembly with flat side away
from you. Slip the needle as far as it will go into needle
clamp, and tighten the screw.
THREADINGTHEDOUBLENEEDLE
Place a spool of thread on each spool pin. Draw both threads
through upper thread guides. Pass a thread between each set
of tension discs of the thread tension assembly. Continue
threading as you would for single needle sewing except where
double thread guides are provided. Draw one thread through
each side of the double thread guides and through each needle
from front to back. Pull several inches of thread through.
(See illustrations]. Thread bobbin and pick up bobbin thread
as for single needle sewing.
THREADSELECTION
Use only mercerized sewing thread size 50 or finer. The same
size thread is recommended for both upper and lower thread-
ing.
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DOUBLENEEDLE
STITCHING
All decorative patterns are possible with double
needle. Before starting any stitching operation,
check needle drop by turning the handwheel
manually. Needle should enter fabric without
touching the presser foot or needle plate. The
stitch width control must not be advanced beyond
3½ setting.
TURNINGA CORNER
To turn a square corner when stitching with a
double needle, stop stitching with the longer needle
tip just piercing the fabric. Raise the presser foot,
shift fabric half the turn, lower presser foot and
take one stitch. Raise the presser foot again,
complete the turn, and begin stitching in the new
direction.
1
2,;
31
SYNTHETICS
Your KENMORE will sew alt the new fabrics of synthetic fiber,
such as nylon, *Orlon, **Dacron, rayon, acetate, blends of these,
and combinations of synthetic and natural fibers. When stitching
a fabric of blended or combined fibers, handle it as you would a
material of the fiber present in the largest percentage. For example,
a fabric woven of 60fb Orlon and 40_3 silk should be handled as one
made entirely of Orlon.
When stitching a fabric that is over 50,¢6 synthetic fiber, remember:
a. Select patterns of the loose fitting type with cap or kimono
sleeves, because most synthetic fiber fabrics cannot be eased
with steam pressing, and are not absorbent.
b. Use a synthetic thread.
c. Use a fine needle as recommended in chart on page 5.
d. Wind the bobbin in the usual way, but do not pass thread
between tension discs. Guide thread by hand for a smoothly
wound bobbin.
e. Choose the stitch length that gives the most satisfactory seam.
f. Check thread tensions by sewing on a double thickness of the
fabric to be used. Usually the upper thread tension must be
loosened. Sometimes both bobbin and upper thread tensions
must be loosened (Pages 12, 13).
SEWINGONPLASTICFILMS
Set the machine with normal thread tensions and a large size stitch.
Use a fine needle and mercerized thread. Hold plastic pieces
together with cellophane tape or paper clips rather than pins. Sew
corners slightly rounded rather than square.
*Trademark for Dupont's Acrylic fiber. **Trademark for Dupont's
polyester fiber.
32
REPLACEMENTOFTHEBELT
Loosen motor bracket screw, push motor toward
handwheel to loosen belt. Remove belt from motor
pulley. Remove clutch knob screw, unscrew clutch
knob and remove clutch washer. Note position of
clutch washer-it must be reassembled in the same
position. Slide hand wheel out sufficiently so belt
can be pulled out over hand wheel. Install new belt
and reverse the above procedure for reassembling.
To provide proper belt tension, pull motor away from
bedplate to take out slack from belt using finger
pressure and tighten motor bracket screw securely.
CLEANINGANDOILING
Keep the moving parts free from dust and thread for
quiet and efficient operation. Cleaning should be
done with a small brush.
When machine runs hard or makes excessive noise,
place a drop of KENMORE sewing machine oil at the
points indicated in figs. A, B, & C.
Swing hinged face cover plate open to oil points
indicated at end of machine head.
Fig. A
33
Remove arm cover plate to oil points indicated at
top of machine head. To remove cover plate,
take disc out from machine, remove top screws
and lift cover. Fig. B
It may be necessary to clean the shuttle area occasionally.
1. Raise the needle bar to its highest 3. Clean the shuttle race of any lint or
point and remove bobbin case. small particles of thread with a small
2. Push levers sideways from the shu- brush.
ttle assembly and lift shuttle race 4. Put a drop of oil on the center pin
cover and shuttle out by the center of the shuttle and on shuttle race
pin. (see arrows).
34
Shuttle Assembly
Tilt machine head back to oil points indicated on
underside of machine head. Fig. C
To reassemble, hold shuttle by center pin
and fit carefully into assembly opposite the
shuttle driver. Slip shuttle race cover into
place. Snap the levers into position.
Occasionally, remove the needle plate and
clean feed dog with a soft brush.
Shuttle Race Cover Shuttle Shuttle Race 3_
WHAT TO DO
PROBLEM PROBABLE CAUSE CORRECTION
Irregular
Stitches
Breaking
Needles
Bunching of
Thread
Puckering
36
Incorrect size needle.
Improper threading.
Loose upper thread tension.
Pulling fabric.
Light pressure on presser foot.
Loose presser foot.
Unevenly wound bobbin.
Pulling fabric.
Incorrect size needle.
Incorrect setting of needle.
Loose presser foot.
Upper and lower threads not
drawn back under presser foot.
Feed dog down.
Incorrect thread tension_,s_.
Light pressure on presser foot.
Using two different sizes or
kinds of thread.
Bent or blunt needle.
Loose presser foot.
Fabric too sheer or too soft.
Choose correct size needle for thread and fabric _page 5_,
Rethreod machine _page 9_.
Tighten upper thread tension _page 12_.
Do not pull fabric; guide it gently.
Increase pressure on presser foot _page 10_.
Reset presser foot _page 11_.
Rewind bobbin _page 7_.
Do not pull fabric; guide it gently.
Choose correct size needle for thread and fabric _page 5_.
Reset needle _page 5_.
Reset presser foot ('page 11_.
Draw both threads back under presser foot _poge 10_.
Raise feed dog (page 10_.
Reset thread tension s_ (,pcges 12, 13_.
Increase pressure on presser foot _pcge 10_,.
Upper threcd and bobbin thread should be same size and kind.
Insert new needle ('page 5_.
Reset presser foot _page 11_.
Use underlay oF tissue paper or tarleton when stitching.
WHAT TO DO
PROBLEM PROBABLE CAUSE CORRECTION
Skipping
Stitches
Breaking Upper
Threcd
Breaking Bobbin
Thread
Fabric not
Moving
Machine Jamming
(.Knocking Noise_
Incorrect size needJe.
Bent or blunt needJe.
Incorrect setting of needle.
Tight upper thread tension.
Light pressure on presser foot.
Starting to stitch too fast.
improper threading.
Tight upper thread tension.
Incorrect size needle.
Sharp eye in needle.
Improper bobbin case threading.
Tight bobbin thread tension.
Lint in bobbin case or shuttle.
Feed dog down.
Light pressure on presser foot.
Threads knotted under fabric.
Thread caught in shuttle.
Choose correct size needle for thread and fabric (page 5_.
Insert new needle (page 57.
Reset needle (page 5).
Loosen upper thread tension (page 12).
Increase pressure on presser foot Cpage 10).
Start to stitch at a medium speed.
Rethread machine _'page 9).
Loosen upper thread tension Cpage 12).
Choose correct size needle for thread and fabric (page 5).
Insert new needle (page 5).
Check bobbin case threading (page 8).
Loosen bobbin thread tension Cpage 13).
Clean bobbin case and shuttle _pages 34, 35).
Raise feed dog (page 10).
Increase pressure on presser foot (page 10_.
Place both threads back under presser foot before
beginning to stitch.
Disassemble and clean shuttle _pages 34, 35).
37
PARTS LIST
All parts listed here may be ordered through your nearest Sears or Simpsons-Sears
retail store, catalog sales office or mail order house.
1 _ 3 4 5 6 7 8
38
7O
;8 19 20 .21 22 23
11 12 13
14 15 16 17
When ordering these parts, please be sure to mention the following references:
1. Model & serial numbers of machine shown on the nomenclature plate. See page 2.
-'2. Parts number _s?, and description is] here.
When ordering by mail, prices will be furnished on request, or parts wilI be shipped at
prevailing prices and you will be billed accordingly.
Ref. No. Part No. Description Ref. No. Part No. Description
1 28775 Shuttle hook (Model 54) 10 1106
11082 Shuttle hook (Model 16, 1749) 1107
2 13480 Needle clamp (Model 16, 54) 1108
26929 Needle clamp (Model 1749) 1109
3 *6862 10 bobbins in case 1110
4 6510 Bobbin case 1111
5 6797 Light bulb 1112
6 *6745 Double needle 1113
*6550 No. 9 needles 11 1222
"6551 No. 11 needles 12 135
*6552 No. 14 needles 9309
*6553 No. 16 needles
*6554 No. 18 needles 13 11191
7 1939 Bobbin winder rubber ring 14 40390
8 2273 Nylon disc 15 3331
9 8286 Spool pin 27678
10 1081 Pattern disc No. 1A and B 16 3330
1102 Pattern disc No. 2A and B 27676
1103 Pattern disc No. 3A and B 17 3342
1119 Pattern disc No. 4A and B 27672
1104 Pattern disc No. 4A and B 18 3343
(Model 540, 541 only) 27673
1105 Pattern disc No. 5A and B 19 6872
Pattern disc No. 6A and B
Pattern disc No. 7A and B
Pattern disc No. 8A and B
Pattern disc No. 9A and B
Pattern disc No. 10A and B
Pattern disc No. 11A and B
Pattern disc No. 12A and B
Pattern disc No. 13A and B
Bobbin winder tension disc
Presser foot thumb screw (Model 54)
Presser foot thumb screw
(Model 16, 1749)
Clamping shank (Model 16, 1749)
Standard zigzag foot (Model 54)
Standard zigzag foot (Model 1749)
Standard zigzag foot (Model 16)
Satin stitch foot (Model 1749)
Satin stitch foot (Model 16)
Plastic zigzag foot (Model 1749)
Plastic zigzag foot (Model 16)
Plastic satin stitch foot (Model 1749)
Plastic satin stitch foot (Model 16)
Straight stitch foot (Model 1749)
39
Ref. No. Part No.
20 27674
21 27677
22 27679
23 6914
24 6864
25 55501
555O0
26 35083
36214
27 35083
28845
Description
Straight stitch foot (Model 16)
Plastic straight stitch foot (Model 16)
Gathering foot (Model 16, 1749)
Motor belt
Needle threader
Large screw driver
Small screw driver
Buttonhole cover plate (Model 54)
Buttonhole cover plate
(Model 16, 1749)
Buttonhole guide plate (Model 54)
Buttonhole guide plate
(Model 16, 1749)
*These items are not furnished with the machine, but may be ordered
per instructions above.
Ref. No. PartNo.
8939
894O
8941
8942
1_3
9_1
9023
9020
6830
30 *6889
Description
1-1/16" keyhole template
1-1/16" regular template
13/16" regular template
5/8" regular template
5/16" regular and eyelet template
15/16" regular template
1/2" regular template
3/8" regular template
5/8" keyhole template
Buttonhole opener
Oiler-brush combination
4O
SEWING MACHINE
SEARS, ROEBUCK AND CO., Chicago, iL 60684 U.S.A. and
SIMPSONS-SEARS LIMITED, Toronto, Ontario, Canada
Part No. 59950
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