Singer 269W User manual

Form 3148w
Rev. \263)
SINGER
SERVICE MANUAL
Class 269w
SINCLE EEDLE
LOCK STITCH
THE SINCER MANUFACTURING COM PAN Y
C op yright© 1963 by The Singer Manufacturing Company
Copyright Under Internat i onal Copyright Union
All R ig hts Re .. rv ed under Inter-American Copyright Union
*A Tradomarlt af THE SINGER MANUFACTURING COMPANY
Printed in U. S. A.
From the library of: Superior Sewing Machine & Supply LLC

TABLE OF CONTENTS
DESCRIPTION OF MACHINES ••••••••••••••••••••.••• 3
OPERATION•••••••••••••••••••••••••••••••.•••••••••••.••• 3-6
ADJUSTMENT••••••••...••.•.••••.••.••••••••••••••••••• 6-10
Accessories •.••••••••••.•••.••••••••••••••••••••••••••••58-79
Adjusting Device••...••••••••••••••••••••••••••••••••••••• 36
Arch Clamp•••••..••••••••.••.•••••.•••••• 12, 40-44, 52, 56
Arm Shaft,••••••••.•.••..••••.•••••••••••••••••••••••••••••.• 14
End Play Removal••••••••••••••••••••••••••••••••••• 8
Barring,•••.••••••••••••••••••••••••••••••••••••••••••••••••••• 3
Buttonholes•••••..••••••••••••••••••••••••••••••• 42, 52
Pockets ••••••••••••••••••••••••••••••••••••••••••• 46, 50
Bell Crank••••••••••••••••••••••••••••••••••••••••• 8, 22, 52
Belt Guard••••••••••••••••••••••••••••••••••••••••••••••18, 58
Belt Loop Tacking................................... 3, 56
Belt Tension••••••••••••••••••••••••••••••••••••••••••••••••• 9
Bobbin, •..................................................... 24
Removal •••.•.•••.•••.•.•••••••••••••••••••••••••••••••. 4
Winding .••.••••••.••••••••••••••.•.••••••••••••••••••••• 5
Bobbin Case, ••••••••••••••••••••••••••••••••••••••••••.•••• 24
Remova1... •• •••••• •• •••••••• ••• ••••••• •••• •• •• ••••••• •• 4
Replacement •••••••••••••••••••••••••••••••••••••••••• 5
Threading•••••••••••••••••••••••••••••••••••••••••••••• 5
Bobbin Thread Tension.................................. 6
Bobbin Winder, •.••••.•.• ••••••••••••••••••••••••••••••••• 32
A..... .1ents •••••••••••••••••••••••••••••••••••••••• 5, 6
Bow Fas.dning ......................................... 3, 42
Brake Installation••••••••••••••••••••••••••••••••••••••••• 10
Brake Lining Care•••••••••••••••••••••••••••••••••••••••• 10
Button Clamp •.............••.•••.•......••.•••••.••..•..... 34
Button Sewers•••••••••••••••••••••••••••••••••••••• 3, 36-38
Cam, .............................................. 3, 38-52,56
Timing •..••••••.••.••..•••••.•..••••.•••.••......•••••.• 8
Clamp Lifting Mechanism•••••••••••••••••••••••••••• 3, 22
Cleaning .•................•..........•.......•.•...•.......... 4
Clearance under Clamp ....•..•..........•..............••• 3
Covers .•..•..•...... ······••••••••••••••••••••••• .•....• 18, 36
Description of Machines••••••••••••••••••••••••••••••••• 3
Driving Arm, .............................. . ... . ............. 20
Adiustment............................. . .............. 7
End Play Removal (Arm Shaft)••••••••••••••••••••••••• 8
Engaging Arm, ...................................... ....... 28
Adiu stment.................... . ..................... .. 9
~ ~=~e~~J: rs~~Sc~;.;r• ••• ••••••••••• ••• •••• o o •••• o •••• 31 42
Feed Plate Carrier Bar •••••••••••••••••• 12, 36, 40, 56
Feed Plate Positioning ••••••.•• •• ..•••••••••••.•••••.••.• 7
Flat Bed Work Plate ••••••••••••••••••••••••••••• 3, 54, 79
Gauge 239369 .......................... . .. ... .. ...... ..•. 6, 1
Interlocking Arm................................ ....... 26
Knife Bar .........••....... •••••••••••••••••••••••••••••••••• 16
Knife Holder•••••••••.••••.••••••.••••••.•.••.••.•••..•••••• 42
Knife Thread Holder ........................... . ... . ..... . 38
Knives, ...•........•.............. .... ........... . ....... 18, 42
Adiustment•••.•.•••.•.••••••••••••.••.••••. •••••••••••• 8
Lateral Rock Shaft••••••••••• •• ••••• ••••••••••••••••• 20, 36
Length of Tack Adjustment••••••••••••••••••• •• . •• • •••• • 1
Lifting Arm .... ····••••••••••••• •• • •• • ••• • •••••• • •••• • ••••• •• 6
INSTRUCTIONS FOR ORDERING••••••••••••.••••.••• 11
PARTS LIST••••••••••••••••••••.••••••••.••.••••••.•.•• 12-79
NUMERICAL LIST•••.•••••••••••••••••••••••••••••••• 80-84
INDEX
Line Tack•••••••••••••••••••••••••••••••••••••••••••••••••••• 3
Link Arm Adjustment••••••••••••••••••••••••••••••••••••• 7
Longitudinal Rock Shaft.•••••••••••••••••••••••••• 20, 36
Lubrication and Cleaning•••••••••••••••••••••••••••••••• 4
Machine Pulley, •••••••••••••••••••••••••••••••.•••••••• 3, 14
Driving Accessories ••••••••••••••••••••••••. 7 4, 76
Machine Pulley (loose), Packing••••••••••••••.••••••• 4
Needle,•••••••••••••••••••••••••••••••••••••••••• 3, 4, 36, 40,
48, 6G'
Setting.................................................. 4
Sizes
.................................................... 4
Needle Bar,•••••••••••••••••••••••••••••••••••••••••••••••• 22
Height Setting....................................... 6
Stroke.................................................. 3
Needle Bar Crank••••••••••••••••••••••••••••••••••••••••• 14
Needle Thread Tension•••••••••••••••••••••••••••••.•••• 6
Oiling ..•...•...•.•...................•........................ 4
Oscillating Shafts••••••••••••••••••••••••••••••••••••••••• 6
Recoil Absorbing Mechanism••••••••••••••••••••••• 9, 26
Sewing Strops ........................................... 3, 44
Shoe Tacking••••••••••••••••••••••••••••••••••••••• 3, 40, 48
Size of Needles ............•.......•.................•....•• 4- ~---,...._ , ..,.
Shuttle,••••••••••••••••••••••••••••••••••••••••••••••••• 24, 36
Timing ••••..•.•••••.•..••.....•..•.•..............••..•. 7
Shuttle Driver Adjustment•••••••••••••••••••••••••••••••• 7
Space behind Needle••••••••••••••••••••••••••••••••••••••• 3
Speed ........ ••••••••••••••••••••••••·····················.. ... 3
Split Feet ....•............••....••..................•........ 44
Starting Lever, ......•....•......................•.......... 26
Adiustments ••..••••.•...•...••..••.........•••.•.••.•. 9
Stop Motion, Brake ....................................... 26
Installation••••.•••.••••••.••••.•••.••.•.••••••••••••• 10
Stop Motion Timing••.••••••.••••••••••.•..•..••.•••••••••. lO
Tacking Adiustments ....................................• 1
Tacking Belt Loops ......•..•••.•........•.••.•.•...• 3, 56
Tension, ••••••••••••••••••••••.••••••.••..••••.•.•••..••••••• 28
Regulation ...••....•....•••..•...................••..••• 6
Tension Position Guide,••••••••••••••••••••••••••• 22, 23
Adiustment ............................................. 6
Thread Cutter on Face Plate •••••••••••••••••••••••• 3, 18
Thread Guide .....................•........•......•..... 5, 28
Thread in 9•••••••••••••••••••••••••••••••••••••••••••••••••••• 5
Thread Retainers•••••••••••••••••••••••••••• 5, 28, 36, 42
Thread Wiper........................... 22, 36, 44,52, 56
Throat Plate ••••••••••••••••••••.••••••.••••• 18, 36, 40, 42
Tripping Mechanism Adjustment•••••••••••••••••••••••• 8
Tripping Points, .•.....•.....•.••.................. 3, 38-50
Timing ...•.•.....••..•..•••..•..•....•....••••••.•...••. . lO
Twist of Thread...................................... . ..... 4
Uneven Winding, Correction for••••••••••••••••• •• •••• 5
"V" Belt Tension Adjustment•••••••••••••••••••• •• • ••• 9
Vertical Drive Shaft ..........•.....•..................... 30
Width of Tack Adjustment•••••••••••••••••••••••••• •••• • 1
From the library of: Superior Sewing Machine & Supply LLC

3
DESCRIPTION OF MACHINES
Machine 269w8 is designed for barring pockets on
clothing and general barring and tacking opera-
tions.
Single needle, lock stitch.
Needle, Catalog 1628 (68x5).
Link
take-up. Short beak, central bobbin, ad-
jus table oscillating shuttle.
Manually operated thread cutter.
Automatic stop and clutching device.
Two-piece machine pulley (tight) and (loose);
"V" belt groove 2-1/4 inches outside diameter.
Needle bar stroke, 1-9/16 inches.
Clearance under clamp, 5/8 inch.
Space behind needle, 8 inches.
Bar pattern 1/8 to 5/8 inch long and 1/16 to
5/32 inch wide; consists of 42 stitches (12 stay-
ing, 27 covering and 3 tying stitches).
Cylinder bed. Flat bed type work plate fur-
nished an request.
Other varieties of Machines of Class 269w
similar to Machine 269w8, with the following
··e:t:ptions -
••
are
ex-
Machine 269w5 -for
stitching 2 or 4 hole buttons
with 21 stitches (18 cross and 3 tying stitches).
Regularly fitted with button clamp for 14 to 50
ligne buttons. If specified on order, machine will
be fitted with clamp for 14 to 50 ligne thin buttons.
Space behind needle, 7 inches.
Needle, Catalog 1627 (68x3),
Machine 269w7 • for
tacking shoes, Tack pattern
1/8 to 3/8 inch long, with 18 stitches (no tying
stitches).
Needle, Catalog 3072 (16x100).
Machine 269w9 • for barring buttonholes, fastening
bows and other ornaments on shoes and garments.
Bar pattern 1/8 to 5/ 16 inch long; consists of
21
stitches (7 staying, 11 covering and 3 tying
stitches).
Needle, Catalog 1628 (68x5).
Machine 269w11
·for general barring and for sew-
ing straps on underwear, etc.
Bar pattern 3/8 to 7/8 inch long and 1/16 to
:i/32 inch wide; consists of 42 stitches (7 staying,
2 covering and 3 tying stitches).
N eedle, Catalog 1628 (68x5).
M ~ 269w12 ·for barring pockets and for other
bar taclting operations.
Bar pattern 1/8 to 5/8 inch long and 1/16 to
5/32 inch wide; consists of 36 stitches (12 staying,
21 covering and 3 tying stitches).
Needle, Catalog 1628 (68x5).
Machine 269w14 •
for tacking shoes.
Tack pattern 1/8 to 5/8 inch long; consists of
21 stitches including 5 overlapping stitches,
Needle, Catalog 3072 (16x100).
Machine 269w17 • similar to Machine 269w5, ex·
cept for cam which produces a tack consisting of
16 stitches (6 parallel, 1 cross-over, 6 parallel and
3
tying stitches),
Needle, Catalog 1627 (68x3).
Machine 269w26 • for barring
pockets on clothing
and other general barring and tacking operations.
Bar pattern 1/8 to 5/8 inch long and 1/16 to
5/32 inch wide; consisting of 28 stitches (8 staying,
17 covering and 3 tying stitches).
Needle, Catalog 1628 (68x5).
Machine 269w38 • for barring
buttonholes in clothing.
Bar pattern 1/8 to 1/4 inch long and 1/16 to
5/32 inch wide; consists of 21 stitches (7 staying,
11 covering and 3 tying stitches).
Regularly fitted with flat bed type work plate
and a clamp for contracting the cut edges of the
buttonholes.
Clearance under clamp, 13/32 inch.
Space behind needle, 7-3/4 inches.
~eedle, Catalog 1628 (68x5).
Machine 269w39 • for
tacking belt loops on trousers,
slacks, sportswear, shirts, etc.
Line tack 1/8 to 1/2 inch long; consists of 28
stitches (including 3 tying stitches),
Regularly fitted with flat bed type work plate.
Needle, Catalog 1628 (68x5).
SPEED
The maximum speed recommended for all ma-
chines of this Class (except the button sewers) is
2000 R. P.M.
Button sewing Machines 269w5 and 269w17 are
designed to run at a maximum speed of 1850 R.P.M.
The maximum efficient speed for any particular
machine is determined by the material being sewn,
the thread used and the operation performed.
From the library of: Superior Sewing Machine & Supply LLC

LUBRICATION AND CLEANING
Fig. 2. Oiling Ports, Front View
Clean and oil machine thoroughly when it is
received from factory.
Use SIHGER* OIL, "TYPE B" or "TYPE D".
Use "TYPE D" OIL when an oil is desired which
will produce a minimum of stain on fabrics.
Apply oil at each of the places on the machine
indicated by the arrows in Figs. 2 and 3.
When machine is in continuous use, apply oil
at least twice daily to insure easy running and to
prevent unnecessary wear.
Machine pulley (loose) should be repacked with
grease, at least once each year.
Using short bristled brush (not point of scissors
or shears) clean out all lint or other waste from
around
ho~k area, and between moving parts on
underside of throat plate.
Close all covers after oiling and cleaning. Wipe
off
excess oil from surfaces of machine that may
come
in contact with material.
NEEDLES
Use SIHGER* needles·· •
Catalog 1627 (68x3), for Machines 269w5
and 269w17.
Catalog 3072 (16x100), for Machines 269w7
and 269w14.
Catalog 1628 (68x5), for all other varieties
of Class 269w Machines.
Size of needle is determined by weight of thread
and type of material being sewn.
THREAD
Use only left twist thread in needle. Either
right or left twist thread can be used in bobbin.
To determine twist, hold thread as shown in
Fig. 4. Then twirl thread over toward you - if strands
of thread tighten, thread is left twist; if strands
unwind, thread is right twist.
TO SET THE NEEDLE
Set the needle, as instructed in Fig. 5.
Long groove of needle should face operator,
with
eye of needle directly in line with cylinder
bed of machine.
4
Fig. 3. Oiling Point in Rcor
HOLD THIS END
Fig. 4. Determining Twist of Thread
~S F~R AS POSSIBLE
AND TIGHTEN SCREW
Fig, 5. Setting the Needle
PULL CASE FROM SHUnLE
Fig. 6.
Removing Bobbin Cose
3. RELEASE
LATCH
4. BOBBIN
DROPS
our
Fig, 7. Removing Bobbin
TO REMOVE THE BOBBIN
Remove bobbin case and bobbin as instructe d"'
in Figs. 6 and 7.
From the library of: Superior Sewing Machine & Supply LLC

Fig. B. Winding the Bobbin
Fig .9.
Fig, 12.
1. PULL THREAD
INTO SLOT
2. DRAW THREAD DOWN
AND UNDER SPRING
Fig. 10.
URN BOBBIN CASE
OVER AND DRAW
5
- To WIND THE BOBBIN
Place bobbin on bobbin winder spindle, as shown
in
Fig. 8 and push it up closely against shoulder,
having small pin in shoulder enter slot in bobbin.
Pass the thread from the unwinder through the
threading parts shown in Fig. 8. Wind thread clock·
wise around bobbin a few times.
Push bobbin winder lever to bring bobbin winder
pulley in firm contact with machine driving belt.
See page 6 for adjustment of this contact.
Bobbins can be wound, while machine is stitch·
ing.
Bobbin winder
wi II stop automatically when
sufficient thread is wound on bobbin.
If thread does not wind evenly on bobbin, loosen
thread guide screw A, Fig. 8 on tension control at
top of machine and move thread guide forward or
back, as required. Securely retighten screw A.
TO THREAD BOBBIN CASE
Hold bobbin so that thread will unwind on top
from left
to right as shown in Fig. 9 and thread
bobbin case as instructed in Figs. 9 to 11.
TO REPLACE BOBBIN CASE
Replace bobbin case in shuttle, as instructed in
Fig. 12, making certain that position finger on
bobbin
case slips into notch provided for it at top
of shuttle race.
TO THREAD THE MACHINE
Pass needle thread from unwinder through thread-
ing points shown in Figs. 13 and 14.
Note: Threading for upper thread retainer used
only on Machines 269w5, 269w9 and 269w17 in place
of thread eyelet, as shown in inset at top of Fig. 13.
Lower thread retainer, shown in Fig. 13, does not
exist on Machines 269w5, 269w9 and 269w17.
Fig. 13. Threading
the Machine
Draw about two inches of
thread through eye of needle
with which to start sewing.
Fig. 14. Threading
the Needle
From the library of: Superior Sewing Machine & Supply LLC

TO REGULATE THE TENSIONS
F ig. 15. Regulating Tension
on Needle Thread
Fig. 16. Regulating Tension
on Bobbin Thread
Tension on needle thread is regulated by thumb
nut
in front of tension discs, as instructed in Fig.15.
Tension on bobbin thread is regulated by screw
on bobbin case tension spring, as instructed in
Fig. 16.
TO ADJUST BOBBIN WINDER PULLEY
Bobbin winder pulley B, Fig. 17 should press
firmly upon machine driving belt C when winding
bobbin. (See instructions on page 5.) To adjust,
engage bobbin winder for winding operation and,
with links D and E in locked position, loosen screw
F. Move pulley, as required and securely retighten
screw F.
TO SET THE NEEDLE BAR
AT THE CORRECT HEIGHT
Turn machine pulley until needle bar moves
down
to its lowest point. With needle bar in this
position, needle bar depth-hole K, Fig. 18 should
be about 27/32 inch above the top surface of the
throat plate, as shown in Fig. 18.
To adjust, loosen needle bar clamping screw M,
Fig. 19 and move needle bar up or down in connec·
tion stud P, as required. Securely retighten screw M.
TO ADJUST THE TENSION POSITION GUIDE
Remove arm side cover plate and loosen pinch
screw G (see inset, Fig. 19) on lifting arm H. Re-
move face plate, Raise presser bar unti I first radius
of tension position guide S2, Fig. 19 touches ten-
sion pin. Tighten lifting arm pinch screw G.
Fig. 17. Adjusting Contact of Bobbin Winder
Pulley with Machine Driving Belt.
p
Fig. 18. Checking Needle Bar Height
(Using Gouge 239369)
Fig, 19, Setting N eedle Bar at Correct Heigh;
From the library of: Superior Sewing Machine & Supply LLC

£27566
Fig. 20. Timing the Shuttle
(Using Gauge 239369)
Fig. 21. Needle Guard Adjustment
Fig. 22. Adjusting Width of Tack
and Positioning Feed Plote
s
Fig. 23. Adjusting Length of Tack
7
TO TIME THE SHUTTLE
Turn machine pulley until needle bar moves
dawn
ta its lowest paint. Loosen pinch screw 350606
in shuttle driver. (See pages 24 and 25).
Insert gauge as shown in Fig. 20, bring shuttle
point against gauge. Then, tighten socket screw in
shuttle driver.
TO ADJUST SHUTTLE DRIVER AND
NEEDLE GUARD
To adjust shuttle in relation to needle, loosen
set screw T2, Fig. 18, and, using two screwdrivers
as wedges, move shuttle race bushing to desired
position. Tighten screw T2.
To adjust needle guard, loosen screw U2, Fig. 21
and move needle guard in or out as required. Tighten
screw U2.
TO ADJUST WIDTH OF TACK
(ALONG THE BED)
To adjust width of tack, loosen nut Q, Fig. 22
(reached through back opening in base of machine).
To make a wider tack (along the bed), slide the nut
over to the right. To make a narrower tack, slide the
nut over to the left. Tighten screw Q.
After adjusting width of tack, it may be neces·
sary to adjust position of feed plate in relation to
needle. Loosen socket screw R, Fig. 22 and move
feed plate central with needle. Tighten socket
screw R.
ADJUST LENGTH OF TACK
(ACROSS THE BED)
Remove the cover plate from the bose of the
machine,
as shown in Fig. 23. Through the opening,
loosen nutS, Fig. 23. To make a longer tack (across
the bed), slide nut S over to right. To make a shorter
tack, slide nut S over to left. Tighten nut S.
After adjusting length of tack, it may be neces·
sary to adjust position of feed plate in relation to
needle. Loosen socket pinch screws T, Fig. 22
and V2, Fig. 24 and set feed plate central with
needle. Set driving arm and link arm parallel as
shown in Fig. 23. Tighten screw V2, Fig. 24. At
face plate end of machine, move feed plate to right
so that left end of feed plate slot is 1/8 inch from
needle hole. Tighten screw T, Fig. 22.
Fig, 24. Driving Arm and Link
Arm Adjustment
From the library of: Superior Sewing Machine & Supply LLC

IQ_TIME THE FEED CAM
Tip machine back, loosen the three feed cam
screws U, Fig. 25 and turn cam clockwise for slower
feeding or counterclockwise for faster feeding.
Tighten the three screws U.
TO REMOVE AND REPLACE THE KNIVES
Tip machine bock and remove the two screws
G2, Fig. 26. Remove knife rock F2 by sliding it
up out of
engagement with knife holder pinion E2.
This causes pinion E2 to rotate so that screw QJ
is accessible. Remove screw QJ. Remove knives
C2 and 02.
To reassemble, position knives C2 and 02 and
replace screw QJ. Mesh first tooth of knife rack
F2 with first tooth of pinion E2 . Slide rack down
along driving
bar and replace screws G2.
TO ADJUST KNIFE POSITION
AND KNIFE PINION
Fig. 26 shows knife C2 (shuttle thread knife)
and knife
02 (needle thread knife) in stop position.
Teeth in knife holder pinion E2 and knife rack
F2 must be properly meshed without binding or
looseness.
To eliminate binding, loosen the two screws G2
and screw H2. Slide adjusting block J2 down.
To eliminate looseness, loosen the two screws
G2 and screw H2. Slide adjusting block J2 up.
After
adjustment, tighten screw H2, reposition
knife rack F2 and tighten screws G2.
TO TIME THE KNIFE
To time the knife, loosen nut V, Fig. 25, on
knife
roller. Move knife roller toward left for faster
knife action, or toward right for slower knife action.
Tighten nut V.
TO REMOVE ARM SHAFT END PLAY
Before any adjustment is made on the stop mech-
anism first check for arm shaft end play. End play
should be at a minimum without binding. To remove
end play, loosen arm shaft bushing set screw Q2,
Fig. 31, page 9 and turn hex support screw X2,
Fig. 27 inward. Tighten bushing set screw Q2,
Fig. 31. Recheck for a minimum of end play with-
out binding.
TO ADJUST THE TRIPPING MECHANISM
(For one or two-notch starting bell crank)
The tripping mechanism locks starting lever
F3, Fig. 27 into running position by means of bell
crank pawl A2, Fig. 28 and bell crank B2, Fig. 28.
Before adjusting, make sure rock shaft 03, Fig.
28 is free from binding, particularly at upper support
E3, Fig. 29, page 9.
To adjust starting pawl and tripping mechanism,
first loosen socket screw Z, Fig. 28. Set tripping
arm A3, Fig. 25 to trip point X, Fig. 25 and leave
approximately .010" between bell crank B2, Fig. 28
and bell crank pawl A2. Tighten socket screw Z,
Fig. 28.
8
Fig. 25. Timing
Q3
Fig. 26. Adjustment
of Knives
Fig. 27. Removing End Play
From the library of: Superior Sewing Machine & Supply LLC

Fig. 28. Tripping Mechanism
,,
Fig, 30. Correct Belt Tension
9
•
4
TO ADJUST THE STARTING LEVER
Starting lever F3, Fig. 27, page 8 carries en-
gaging arm K2, Fig. 31 and all the recoil absorbing
mechanism.
With the bell crank pawl A2, in catch C3, Fig.
28, there should be approximately 1/32 inch space
between high point of camming face of fixed pulley
N3, and interlocking arm K3, as shown in Fig. 27.
To obtain this setting, loosen swivel lock nut
G3, Fig. 29 and remove hinge screw H3. Turn swivel
in or out as required. (Each full turn of swivel
equals approximately 1/32 inch of adjustment.)
Replace hinge screw H3 and tighten swivel lock
nut G3.
TO ADJUST "V" BELT
Keep belt tension only heavy enough to drive
machine without slipping. Excessive belt tension
will cause erratic stopping, shortening life of belt
and loose pulley bearing.
With machine in an idle position, adjust belt
tightener, which carries motor, to obtain a distance
of 1-7/8 inches when belt is compressed as shown
in
Fig. 30.
TO ADJUST THE ENGAGING ARM
Engaging arm K2, Fig. 31 drives idler pulley
N2 forward and forces "V" belt M2 forward and up
the face of fixed pulley, thereby driving the machine.
With machine in operation, "V" belt M2 must
raise off bottom of idler pulley 1/32 inch, as shown
in
Fig. 31.
To adjust, loosen pinch screw W2 and tap arm
K2 in against engaging button Y2 until "V" belt
raises 1/32 inch when machine is operated. Tighten
screw W2.
WARNING· A raise greater than 1/32 inch will
cause excessive belt tension.
N2
!283 76
Fig. 31. Adjust i ng the Engaging Arm
From the library of: Superior Sewing Machine & Supply LLC

TO TIME THE STOP MOTION
Trip points X and W, Fig. 25, page 8 force pawl
A2,
Fig. 28, page 9 out of engagement with starting
bell crank 82, Fig. 28, thereby bring recoil mechan-
ism into action to stop machine.
Trip Point X - determines when machine will enter
stop position -
To adjust, bring starting lever F3, Fig. 27,
page 8 forward unti I pawl A2, Fig. 28 drops into
first catch C3. Then set trip point X, Fig. 25 so
that, when rotating machine by hand, starting lever
F3, Fig. 27 will drop bock against fixed pulley
N3, Fig. 27 just after interlocking notch M3, Fig.
27 has passed interlocking arm K3, Fig. 27.
Once properly adjusted, trip point X will not
require readjustment except when feed cam is re-
timed.
Trip Point W - determines speed at which machine
enters stop position -
Trip point W will usually require readjustment
whenever the machine speed is changed.
Excessive speed when entering stop position
will cause rapid wear and breakage of recoil mechan-
ism. Therefore, on a machine not equipped with a
brake, check the trip point W often, for as machine
wears in and runs more freely, it will require a
longer coast period.
Adjust trip point W so that machine consistently
enters stop position at minimum speed when sewing
heaviest part of material.
TO INSTALL THE STOP MOTION BRAKE
Remove starting rod adjusting screw H3, Fig. 29,
page 9. Position brake bracket E4 as shown in
Fig. 32 and secure bracket to starting rod with
screw A4. Insert small end of spring support 84 into
small end of spring C4. Insert screw 04 through
bracket until it enters spring support 84. Continue
to turn in screw 04 until tension is applied to spring
C4.
10
04
G4
Fig. 32. Stop Motion Brake
Move starting lever G4 into running position.
Loosen lock screw H4 and turn adjusting stud (ec-
centric) J4 until the brake lining K4 clears the
fixed pulley by approximately 1/32 inch. n --
tighten lock screw H4.
Remove trip point W, Fig. 25, page 8. Run ma-
chine and adjust for correct tension on spring C4,
Fig. 32 by turning screw 04 until interlocki{lg arm
K3,
Fig. 27, page 8 enters the stop notch quietly.
Then tighten lock screw F4, fig. 32.
NOTE: As the brake surface becomes glazed
by use, it may be necessary to readjust the tension
on spring C4.
CAUTION: Brake lining must be kept free of oil.
From the library of: Superior Sewing Machine & Supply LLC