UnionSpecial 36200 Series Instruction sheet

TYLES
6200A
62008
.6200X
.,6200AA
6200AB
6200AK
6200AX
ATALOG
No.
118L
THIRD
EDITION
C 0 L U M B I A®
CL A SS 36200
HIGH SPEED
CYLINDER FLATSEAMER
MACHI ES
INDUSTRIAL
SEWING
MACHINES
UNION SPECIAL CORPORATION
CHICAGO
From the library of: Superior Sewing Machine & Supply LLC

Catalog No. 118 L
INSTRUCTIONS
FOR
ADJUSTING AND OPERATING
LIST OF PARTS
36200 A
36200 B
36200 X
STYLES
36200 ·AX
Third Edition
36200 AA
36200 AB
36200 AK
Copyright 1960, 1962
By
Union Special Corporation
Rights Reserved in All Countries
UNION SPECIAL CORPORATION
INDUSTRIAL SEWING MACHINES
CHICAGO
Printed in U.S. A.
2
March, 1981
From the library of: Superior Sewing Machine & Supply LLC

TABLE OF CONTENTS
CATALOG NO. 118 L
GENERAL SALES INFORMATION
Page
~
Introduction-------------------------------------------------------------------------------------------- 2
Table of Contents--------------------------------------------------------------------------------------- 3
Identification of Machines-------------------------------------------------------------------------------- 4
Application of Catalog----------------------------------------------------------------------------------- 4
Description of Machine---------------------------------------------------------------------------------- 4
Needles------------------------------------------------------------------------------------------------ 4
Ordering Repair Parts ---------------------------------------------------------------------------------- 5
Illustrations (explanation)---------------------------------------------------------------------------- 5
Identifying Parts------------------------------------------------------------------------------------ 5
Use Genuine Needles and Repair Parts---------------------------------------------------------------- 6
Terms--------------------------------------------------------------------------------------------- 6
GENERAL SEWING INFORMATION
ThreadingandOiling------------------------------------------------------------------------------------ 6
Diagram for Thread ing and Oiling ------------------------------------------------------------------------ 7
Machine Adjuster's Information-------------------------------------------------------------------------- 8
Installation of Machine ---------------------------------------------------------------------------------- 9
Mounting the Machine ----------------------------------------------------------------------------------- 9
MachineSpeed------------------------------------------------------------------------------------------ 9
Setting Up Thread Stand --------------------------------------------------------------------------------- 9
Threading the Machine ---------------------------------------------------------------------------------- 9
Preferred Threads---------------------------------------------------------------------------------- 9
Sequence of Threading------------------------------------------------------------------------------- 9
Unlocking the Stitch--------------------------------------------------------------------------------- 10
Replacing the Needle-------------------------------------------------------------------------------- 10
INSTRUCTIONS FOR SEWING ADJUSTMENTS
Needle to Looper Setting--------------------------------------------------------------------------------- 11
Needle and Needle Bar---------------------------------------------------------------------------------- 11
Alignment of Needles to Throat Plate --------------------------------------------------------------------- 11
Timing of Needles in Relation to Looper------------------------------------------------------------------- 12
Instructions for Using Synchronizing Gauge No. 21227 CG ----------------------------------------------- 12
LooperAdjustment-------------------------------------------------------------------------------------- 13
FeedAdjustments--------------------------------------------------------------------------------------- 13
Feed Height---------------------------------------------------------------------------------------- 14
Rear Needle Guard Adjustment----------------------------------------------------------------------- 14
StuchLength--------------------------------------------------------------------------------------- 14
Differential Control--------------------------------------------------------------------------------- 14
Presser Foot Adjustment---------------------------------------------------------------------------- 14
Adjustment of Trimming Knives-------------------------------------------------------------------------- 15
Needle Thread Adjustments------------------------------------------------------------------------------ 16
Looper Thread Adjustment------------------------------------------------------------------------------- 16
Cover Thread Adjustment-------------------------------------------------------------------------------- 16
Adjustment of Tension Release--------------------------------------------------------------------------- 16
Sewing Plastic With Nylon Thread and Without the 36211 Retainer-------------------------------------------- 17
EXPLODED VIEWS AND DESCRIPTION OF PARTS
Drive Unit, Belt Guard and Mounting Stud ----------------------------------------------------------------- 18
Reference Number, Part Number and Description------------------------------------------------------ 19
Main Frame, Miscellaneous Covers, Bushings and Take-up------------------------------------------------- 20
Reference Number, Part Number and Description------------------------------------------------------ 21
Needle Lever, Main Shaft, Crankshaft and Miscellaneous Oiling --------------------------------------------- 22
Reference Number, Part Number and Description------------------------------------------------------ 23
Foot L~erand Tension Parts---------------------------------------------------------------------------- 24
Reference Number, Part Number and Description------------------------------------------------------ 25
Detachable Head, Covers, Needle Bar and Needle Bar Head------------------------------------------------- 26
Reference Number, Part Number and Description------------------------------------------------------ 27
Differential Feed Bar, Main Feed Bar and Feed Lift Eccentric Assembly------------------------------------- 28
Reference Number, Part Number and Description------------------------------------------------------ 29
Feed Drive Assembly, Feed Rocker, Looper Avoid Link Ball Joints------------------------------------------ 30
Reference Number, Part Number and Description------------------------------------------------------ 31
Looper Rocker Shaft, Looper Drive and Knife Drive Parts -------------------------------------------------- 32
Reference Number, Part Number and Description------------------------------------------------------ 33
Differential Feed Control, Cylinder Covers and Bushings --------------------------------------------------- 34
Reference Number, Part Number and Description------------------------------------------------------ 35
Presser Bar and Presser Feet--------------------------------------------------------------------------- 36
Reference Number, Part Number and Description------------------------------------------------------ 37
Presser Foot Shoes for 36200 Machines------------------------------------------------------------------- 38
Reference Number, Part Number and Description------------------------------------------------------ 39
Thread Stand and Accessories---------------------------------------------------------------------------- 40
Reference Number, Part Number and Description------------------------------------------------------ 41
NUMERlCAL INDEX OF PARTS --------------------------------------------------------------------------- 42-43
UNION SPECIAL SALES OFFICES
Domestic and Foreign Sales Offices---------------------------------------------------------------- Back Cover
3
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IDENTIFICATION OF MACHINES
Each UNION SPECIAL machine carries a Style number which is stamped in the name plate on the ma-
chine . Style numbers are classified as standard and special. Standard Style numbers have one or more
letters suffixed, but never contain the letter "Z". Example: "Style 36200 A". Special Style numbers
contain the letter "Z". When only minor changes are made in a standard machine, a "Z" is suffixed to
the standard Style number. Example: "Style 36200 AZ".
APPLICATION OF CATALOG
This catalog applies specifically to the Standard styles of machines as listed herein. It can
also be applied with discretion to some special machines in this Class. References to direction,
such as right, left, front, back, etc., are given from the operator's position while seated at the
machine. Operating direction of handwheel is clockwise.
DESCRIPTION OF MACHINES
Feed-Off-The Arm, High Speed, Medium Throw Machine, Four Needles and Retainer Abreast, One Looper,
Dial Adjusted Differential Feed Control, Enclosed Automatic Lubricating System, Filter Type Oil Re-
turn Pump, Visual Sight Oil Action and Supply Gauges, Maximum Work Space in Front of Needles 8
Inches.
36200 A FLATSEAMER . Six threads for simultaneously trimming and flatseaming infant's panties,
men's briefs, shorts and all similar knitted garments made of light to medium weight material,
where seaming and closing elastic is necessary. Seam Specification 607-FSa-1.
36200 B FLATSEAMER. Six threads for simultaneously trimming and flatseaming underwear, children's
knit sleepers or similar garments and all knitted fabrics made of light to medium weight mater-
ial, where seaming and closing elastic is not necessary. Seam Specification 607-FSa-1.
36200 X TAPE-SEAMER . Five threads for joining and taping fronts of knit briefs in gne operation.
Seam Specification 607-LS-4 (Mod.)
36200 AA Same as Style 36200 A, except prepared for Pedestal Installation.
36200 AB Same as Style 36200 B, except prepared for Pedestal Installation.
36200 AK Same as Style 36200 AA, except for changes in Packing List No. 1-P-626; Added (1)
21114 AG-6 Lead Eyelet, (1) 21233 AJ Lead Eyelet Bracket Connection. Remove (1) 1421 Hand-
wheel, (1) 1421 A Stud.
36200 AX Same as Style 32600 X, except prepared for Pedestal Installation.
NEEDLES
Each needle has both a type number and size number. The type number denotes the kind of shank,
point, length, groove, finish and other details. The size number, stamped on the needle shank, de-
notes the largest diameter of the blade measured midway between the shank and the eye. Collective-
ly, the type number and size number represent the complete symbol.
Selection of proper needle size should be determined by the size of the thread used. Thread
should pass freely through the needle eye in order to produce a good stitch formation.
The recommended needles are Type 118 GKS, size 075/029 for Styles 36200 A, B, AA, AB and AK;
size 080/032 for Styles 36200 X and AX. Type 118 GKS is a round shank, round point, extra short,
double groove, struck groove, spotted, .060 inch diameter shank, chromium plated needle and is
available in sizes 070/027, 075/029, and 080/032.
To have needle orders promptly and accurately filled, an empty package, a sample needle, or
the type and size number should be forwarded. Use description on label, A complete order would
read: "1000 Needles, Type 118 GKS, Size 075/029".
4
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ORDERING REPAIR PARTS
ILLUSTRATIONS
This catalog has been arranged to simplify ordering repair parts. Exploded
views of various sections ofthe mechanism are shown sothatthe parts maybe
seen in their actual position in the machine. On the page opposite the illustration
will be found a listing of the parts with their parts numbers, description and
the number of pieces required in the particular view being shown.
Numbers in the first column are reference numbers only, and merely in-
dicate the position of that part in the illustration. Reference number should
never be used in ordering parts. Always use the part number listed in the
second column.
Component parts of sub-assemblies which can be furnished for repairs are
indicated by indenting their descriptions under the description of the main
sub-assembly. Example:
27
28
29
30
31
32
33
34
29478
cs
29103 T
22587 E
22894 w
22764
269
36244
18
Feed Lift Eccentric Assembly---------------- 1
Feed Lift Ecc. Assembly Ball Joint-------- 1
Screw------------------------------- 2
Screw------------------------------- 1
Screw------------------------------- 1
Nut~ left thread-------------------------- 1
Connecting Rod-------------------------- 1
Nut, right thread ------------------------ 1
It will be noted in the above example that the eccentric and bearing are not
listed. The reason is that replacement of these parts individually is not
recommended, so the complete sub-assembly should be ordered.
In those cases where a part is common to all of the machines covered by
this catalog, no specific usage will be mentioned in the description. However,
when the parts for the various machines are not the same, the specific usage
will be mentioned in the description and
1
if necessary, the difference will be
shown in the illustration.
At the back of the book will be found a numerical index of all the parts
shown in this book. This will facilitate locating the illustration and description
when only the part number is known.
IDENTIFYING PARTS
Where the construction permits
1
each part is stamped with its part number.
On some of the smaller parts, and on those where construction does not permit,
an identification letter is stamped in to distinguish the part from similar ones.
Part numbers represent the same part
1
regardless of catalog in which they
appear.
IMPORTANT! ON ALL ORDERS~ PLEASE INCLUDE PART NAME AND
STYLE OF MACHINE FOR WHICH PART IS ORDERED.
5
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USE GENUINE REPAIR PARTS
Success in the operation of these machines can be secured only with genuine
UNION SPECIAL Repair Parts as furnished by the Union Special Corporation, its subsid-
iaries and authorized distributors. They are designed according to the most approved
scientific principles, and are made with utmost precision. Maximum efficiency and
durability are assured.
TERMS
Prices are strictly net cash and subject to change without notice. All shipments
are forwarded at the buyer's risk f.o.b. shipping point. Parcel Post shipments are
insured unless otherwise directed. A charge is made to cover the postage and insur-
ance.
THREADING AND OILING INFORMATION
VIEWS AA AND BB:
Thread as indicated in illustration on opposite page, starting with #4, progres-
sing to 3, 2, 1, 5 and 6 in order and passing needle threads UNDER the stitch unlock-
ing spring at needle thread frame eyelet "G".
VIEW CC:
Close-up of tension post assembly. A, Tension Nut; B, Spring; C, Post; D, Disc,
upper; E, Disc, lower; F, Post Slot.
Pass threads thru slots "F" in tension post "C", and between tension discs "D"
and "E".
VIEW DD:
Close-up of looper thread and cover thread take-ups.
VIEW EE:
Close-up of needle thread sequence.
OILING
Referring to illustration on opposite page, machine is filled at the caps "H"
and "J". Oil capacity of Class 36200 is 2 ounces in bottom oil reservoir and 2.5
ounces in the top reservoir. Use a straight mineral oil, Saybolt viscosity of 90 to
125 seconds at 100o Fahrenheit. The level is checked at the two sight gauges "K" and
"L", located on the right side of the main frame under the foot lifter lever and at
the front of the cylinder, respectively. Maintain oil level between red lines of
these gauges.
Automatic lubrication is featured with a continuously driven rotary pump. Flow
of oil can be observed thru windows ''M" and "N" in crank chamber cover and front top
cover. When installing a new machine or starting one that has been idle for some
time, priming may be necessary. To do so, remove the two plug screws "P", fill holes
with recommended oil and replace screws BEFORE operating. If oil does not flow while
machine is running, pump is inoperative.
Oil is drained from machine at two places, "O" and "R". "R" is located below
and back of drive pulley. Belt cover must first be removed. When replacing the screw
at "Q" be sure the hole in the filter box, that the screw goes into, lines up with
the hole in the bottom of the cylinder.
Occasionally, it is necessary to oil the linkage of the presser foot, the knife
holder shank No. 36273 A, guide collar No. 36273 K and the various links and bearings
of the presser foot lifting mechanism and thread tension release.
6
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7
AA
cc
THREADING AND OILING DIAGRAM
FOR STYLES 36200 A, B
~~---------------------- ---------------------------- ------ ----
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From the library of: Superior Sewing Machine & Supply LLC

INSTALLATION OF MACHINE
Where a power stand or line-shaft installation is desired, it is recommended that the machine be installed
on a Union Special table board in order to obtain the benefits of isolated moWlt_ ing, which is fu~her imp~oved by
the use of Rubber Feet (1#21371 JT), especially on wooden floors. However, 1f such a board lS not available, a
table board may be prepared to obtain isolation as shown on Planograph with template PL443.
It is more convenient to set up the Machine Drive Unit first and add Machine later. Insert the three Studs
(1#35895 R) into the base of the Drive Unit and tighten. Add one steel Washer (1#21371 UE) and one Neoprene
Corrugated Isolator (1#660-275) in this order to each Stud and set Unit on table, Studs extending through holes.
Add three Felt Sleeves (1#660-161) on each Stud and press into holes. Assemble balance of parts per PL443. On
left and front Studs, tighten first Nut with fingers only. Lock into position with second Nut. Tighten first Nut on
rear Stud so that Drive Unit has about 1/32 less gap at rear. Lock into position with second Nut.
MOUNTING THE MAClllNE
Correct Screws for assembling Machine to Drive Unit are Allen Head Cap Screws 3/8 -16 x 1 1/4 inch long
(1#22652 F-20) and are packed in small parts box. Freedom of screw body in hole permits Machine to be levelled
before tightening securely. Place short Belt (1#21261 M-210) first over Adjustable Pulley and then on Machine
Pulley. Tighten Belt by turning flange of Adjustable Pulley clockwise to increase the pitch diameter. Belt is
sufficiently tight if while one side remains straight the opposite side may be deflected inwardly 1/4 inch by light
finger pressure. Secure the flange position by tightening the Set Screw. If the open screw hole lines up with a
milled flat as a more favorable position, move the Set Screw to this hole. Make sure Screw seats on flat of
milled groove. Do not tighten againstthread on Pulley Core. Add Belt Guard (1#36295 J) with two Fillister Head
Screws (1#25 S).
Refer to Page 25; assemble Lifter Lever (1#36280 F) and the Link (1#36280 G). Two holes are provided in the
Lever (I# 36280 F). The hole close sf; to the Fulcrum Screw will provide more lift. Attach the Lifter Chain
(1#421 D-38) or Lifter Rod.
MAClllNE SPEED
The speed of the Machine is 4200 R. P. M. , which may be modified, dependent upon the conditions of the
operation. Since the Handwheel Pulley, which is grooved for a 1#1 or 3L section Vee Belt, has a pitch diameter
of 2 1/4 inches, the size of the Motor Pulley may be approximated by the following formula:
2. 25 x R. P. M. of Machine
Pitch Dia. of Motor Pulley =
R. P. M. of Motor
For Union Special Electro Drive Pulleys, add 1/4 inch to the calculated pitch diameter to obtain the outside
diameter. Due to variations in actual pitch diameters, motor speeds, tension of the Jack Belt and size of
variable pitch pulley, an absolute value will not be obtained and therefore, it becomes necessary to use a
tachometer to determine the actual speed. The tachometer should be applied to the end of the MACm:~ Shaft.
It is unnecessary to remove the Belt Guard (1#36295 J), since a hole has been provided for this purpose.
SETTING UP THREAD STAND
Fasten Thread Stand to table board with three (i#SC303) Flat Head Wood Screws (1#12Xl) at a location most
convenient to bring into direct line the threads which lead into the Eyelets of Machine. See PL425 (packed with
machine) for threading.
Brackets for attaching Thread Lead-in Guides should be located as shown on PL437 (also packed with machine)
to prevent interference between Thread Cones and the Lead-in Guides.
THREADING THE MACiflNE
PREFERRED THREADS
The Machine will operate satisfactorily with either left or right twist, although the direction of the Looper
travel indica~es right twist. A 70-3 or 80-3 cord is used in the needles and 30/2 to 50/2 soft mercerized yarn
may be usedm the Looper as well asthe coverthread. The 25/1 to 28/1 yarns are definitely NOT recommended
for the Looper since there is insufficient yarn to resist abrasion of wearing, although the seam has more than
adequate strength.
It is more economical over a period oftime to use the better grades ofthread and yarn since they produce a
more unif.orm stitch, thereby reducing the possibility of down-time. However, a selection of thread will depend
on operation and material.
SEQUENCE OF THREADING
_Mac?J.ne has been sewed _off at factory and PL425 is packed ,.- £ ~ h each machine as guide to threading and cone
pos1tiorung. Sample of fabnc should be closely observed as to introduction of fabric between toes of Presser
Foot.
Place Cones on Thread Stand Seats and pull thread from cones on stand thru Lead-in Guides to Tension Post
Eyelets as shown on PL425. Unwrap threads from Presser Bar, cut off and tie to threads from the Cones.
9
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Turn Handwheel clockwise. Stop with Needle Bar at top of its stroke.
Pull threads from above needle eyes thru system until knots pass thru Needle Bar Head Eyelet. Cut off
thread above knots and cut off close to Needle Eyes. DO NOT RE-THREAD NEEDLES AT THIS TIME.
With Needle Bar raised, lift Presser Foot and remove the factory sample. Observe method of entering Foot
and the stitch formation.
Looper and Cover Thread can now be tied and pulled thru, with Needle Bar at highest point. It is unnecessary
to re-thread the Looper and Cover Thread Carrier.
THREAD NEEDLES and place one ply of material under Foot. Manually turn clockwise several times and
observe formation of stitch.
Check Tension Release when Foot is raised before sewing with power. When Foot is down, all threads have
tension; when Foot is ra i sed, all threads must be completely free. If these conditions are not met, refer to
section on "Adjustment of Tension Release".
UNLOCKING THE STITCH
Turn the Handwheel in the operating or clockwise direct i on until the Needle Bar is in its lowest position,
then, turn the Handwheel in the reverse direc ti on until the Needle Bar has reached its highest posit i on and moved
downward approximately 1/8 inch to where the top of the Needle Lever Thread Eyelet is in li ne with the top of the
mark on the Head Cover. Lift the Presser Foot as high as possible, thus opening the Tensions which allow the
threads to be pulled from under the Foot freely.
With threads unlocked, it must be understood that it is only to introduce work under the Foot from behind
the needles. Without a chain, material must be under the Foot when starting to sew.
If the stitch is unlocked and it is desired to start the machine without mater i al, it is i mperat i ve to hold the
free ends of all the threads firmly behind the Foot before starting the machine, until a small amount of chain is
formed. This is termed "starting the chain". Machine will then chain indefinitely.
REPLACING THE NEEDLE
Union Special Needles for the FLA TSEAMER are made with two flats on front of Shank. This design auto-
matically assists operator in correctly locating the relative posi ti on of Needles in Needle Bar Head with respect
to Looper. The Retainer, to the right of the fourth Needle, requ i res no orienting and consequently has no flat.
To remove Needle, bring Needle Bar to maximum height, break thread at eye, loosen Screw (#22738 H) and
remove Needle, To replace Needle, make certain that Shank is inserted to full depth and that Screw is f irmly
seated on flat (Page 27).
INSTRUCTIONS FOR SEWING ADJUSTMENTS
If the machine has been disassembled, re-adjusting for sewin g -off is required, and it is suggested that the
adjustments be made in the following sequence, which, through experience, has proven generally satisfactory,
Familiarity with the machine will permit individual adjustments of an assembled machine to correct malfunction,
but care should be taken to observe that the proper relationship of adjustment is maintained,
NEEDLE TO LOOPER SETTING
If the machine is assembled and it is desired to proceed with the Needle to Looper setting, the Upper Knife,
Presser Foot, Throat Plate and Main Feed Dog should be removed,
To remove Presser Foot (#36220), raise Needle Bar to maximum height and remove Retainer (#36211), Upper
Knife (#36270) and release knife pressure by unclamping Knife Guide (#36273 B), Remove Detachable Head
Cover, left (#36289 A, Page 27) and Presser Foot Brace (#36278 E), Release Presser Bar Guide (#36278 B) and
partially withdraw Presser Bar (#36278), Removal of Throat Plate and Main Feed Dog will permit observation
of Needle to Looper setting,
10
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NEEDLES AND NEEDLE BAH
With Needle Bar motion at its highest travel, the fourth or lowest
needle should be 17/32 inch from Throat Plate top. This adjustment
may be obtained by using needle height Gauge (#21227 BU). To release
the clamping of Needle Bar, loosen Screw (#22562 A, Page23)in Needle
Bar Connection (#51254 J), access to which is obtained by removal of
Detachable Head Cover, left (#36289 A, Fig. A).
To position Needle Head square with the Throat Plate, insert the
Needles into first and fourth positions only. The Upper Knife is used
as a straight edge against the blades of the Needles and aligned with the
cross grooves of the Throat Plate which has been previously secured
by Throat Plate Screws (Fig. B).
Should removal of the Needle Bar become necessary, remove Head
(#36218) by unscrewing and loosen the Binder Screw (#22562 A) in the
Needle Bar Connection (#51254 J).
To replace the Needle Head, screw into Needle Bar and tighten to a
torque of 17 lb. inches, or until Torque Bar (#21227 AR), inserted into
cross hole in the Needle Bar, bends.
CAUTION! End of Needle Bar does not seat on top of Needle Bar
Head. After tightening, check for expans i on of Needle Bar by shoving
Bar up into the Lower Bushing hole. If Bar has been expanded, it will
bind in the Bushing. The Bar must be lapped to reduce be ll shape.
Normal assembly does not produce this bind.
A dd second and third Needles, and Retainer .
ALIGNMENT OF NEEDLES TO THROAT PLATE
Correct spacing of the Needles in Stitch Ton g ue is imperative to
proper sewing conditions. Improper relation of Needles to the Stitch
Tongue often results in mal-formed stitches (Fi g. C).
In replacing a Stitch Tongue in the Throat Plate, care should be
taken to assure the Stitch Tongue is not aligned improperly.
If the Stitch Tongue and Throat Plate are properly seated and the
Needle position is not correct, it is probable that the Cylinder has been
forced out of position. It is therefore necessary to realign the Cylinder
as outlined on Page 12.
When the Needles are in correct position to the Throat Plate, the
space at the left of the Needle in the slot of the Stitch Tongue is • 006
inch more than the space at the right, as shown in Fig. C. Actually,
the Needle Bar is centrally located with respect to the Throat Plate
and Cylinder. However, to provide clearance on the left side of the
Needle for the Needle Loops passing around the Looper during the down
stroke of the Needles , the slots in the Stitch Tongue are made off center
to the left. Accurate positioning of the Needles may be obtained by an
adjustment of the Cylinder position.
Adjusting the Cylinder should be done with the Presser Foot and
the Looper removed and with the Needles and Retainer certified for
straightness. Remove from the top of Main Frame the Front Cover
(#35887 AE , Pa ge 21) and the Gasket. l..oosen Cylinder Holding Screw
(#22653 E-20, Page 35) at the front. Insert Screwdriver into the slot
in Eccentric Stud (#36229 A-1), located to the left of screw. Position
of the slot indicates position of the Eccentric, since center of Eccentric
coincides with the center of the slot. Turning Stud clockwise moves the
Cylinder to the left but in effect locates Needles to the right. Moving
the Stud counterclockwise locates the Needles to the left. If machine
has been in service for some time the Cylinder may not move freely by
the rotation of the Eccentric, due to the joint seal compound setting.
Light tapping with a wooden block at the joint or mid-point of the Arm
may be nece · ssary.
After alignment, tighten the Holding Screw and re-check position.
11
Fig. A
Fig. B
Fi g. c
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USE OF LOOPER TRAVEL GAUGE
Remove Cylinder Hinged Spring Support Stud (#36283 C, Page 35) from Cylinder and attach Looper Travel
Gauge Plate (#21227 CS) so that the bottom of gauge is approximately horizontal. Lock lightly in place with
Screw (1122894 W), Remove left hand Screw (#604) used to hold Looper Needle Guard (1136210, Page 33) and
attach Looper Travel Gauge Pointer (/121227 CM) using the same screw.
Turn Handwheel to set Looper (#36208 A) at the far right position. Set pointer at zero degrees by rotating
Gauge Plate and then lock in place with Screw (/122894 W). Turn handwheelJn clockwise direction to check the
looper travel. If the Pointer stops on graduation mark which indicates 55 40
1
or within graduation marks on
either side, the looper travel is correct. If Pointer goes beyond either of the graduation marks mentioned above,
it is necessary to alter the looper travel.
To adjust the looper travel, remove Front Top Cover (#35887 AE, Page 21) and the End Cover (1135887 Z).
Loosen Locknut (# 269, Page 33) and turn adjusting Screw (1122795 B) clockwise to decrease the looper travel and
counterclockwise to increase looper travel.
NOTE: After setting looper travel, machine must be checked for synchronization,
TIMING OF NEEDLES IN RELATION TO LOOPER
The movements of the Needles and Looper are timed with each other at the factory, If it has been necessary
to disassemble the Main Shaft, the timing means must be checked,
Adjustment for timing the motion of the Needles to Looper is obtained in the Main Shaft Coupling (1135895 X,
Page 23), This is constructed in two parts which are clamped together by Screws (1122519 F), Each end is
oriented to its Shaft by Spot Screw (/122 894 K) locating in Vee grooves milled in the Shafts. The Clamping Screws
pass through slots which will allow a small amount of turning between the parts, This provides the necessary
orienting for timing of the Main Shaft to the Crankshaft, After correct position is obtained by the factory, a
timing mark is cut into the Coupling normal to the clamped faces and on the surface next to the Spot Screws.
When the same Shafts and Coupling are used together, an accurate realignment of the mark will produce the
same timing as before, However, it is never necessary in disassembling to release the Clamping Screws.
Only for timing are the Clamping Screws released,
If one, or both, Shafts have been renewed, the timing will be altered within the manufacturing tolerances of
the two Shafts, and therefore, the timing mark will not represent correct timing and retiming should be done
as described below.
When the Needle Bar is at lowest position, the Looper has already started its advance toward the Needles,
therefore, this position does not represent synchronization and Looper timing cannot be accomplished there.
Synchronization occurs only when Needle Bar has risen. 156 (5/32) inch, At this height, the Looper point should
appear at the same relative position to the Needles whether rotation is effected clockwise or counterclockwise.
Synchronizat i on is easily and accurately obtained by use of Gauge (#21227 CG, Page 43),
Fig, D
INSTRUCTIONS FOR USING SYNCHRONIZING GAUGE NO, 21227 CG
(1) Turn the Handwheel until Needle Bar (#35817 E, Page 27) is at bottom of its stroke.
(2) Loosen the Presser Bar Regulating Screw (#36278 G, Page 27) and insert the Needle
Bar Setting Block (# 21227 CH, Fig. D, A) under the head of the Regularing Screw with
the Stop Screw (1114087, Fig. D, B) above the Needle Bar. Clamp the Needle Bar
Setting Block in this position.
(3) Using the long portion of the Looper Clamp and Height Gauge (1121227 CJ, Fig. D, C)
laid on its side as a gauge to set the Stop Screw (1114087) leave, 156 (5/32) inch gap
between the top of the Needle Bar at its lowest position and the head of the Stop Screw.
Clamp Stop Screw in position using Nut (/11347 A, Fig, D, D).
(4) Insert the Synchronizing Gauge Rod (#21227 CK, Fig. D, E) into the Looper Clamp and
Height Gauge (#21227 CJ) securing it with Screw (#22738, Fig. D, F) and then clamp the
gauge (#21227 CJ) to the heel of the Looper (#36208 A) with Screw (#22703 A, Fig. D, G),
(5) Turn the Handwheel slowly in a clockwise direction until the Needle Bar strikes the
Stop Screw. Then set the Synchronizing Gauge Rod so that the flattened end is about
in the center of the graduations on the Needle Bar Setting Block (#21227 CH), This
is accomplished by loosening Screw (/122738),
(6) Turn the Handwheel in the opposite direction until the Needle Bar strikes the Stop
Screw, The end of the Synchronizing Gauge Rod should come to the same graduation
on the gauge, The difference must not exceed two marks of the graduation,
(7) Follow this procedure two or three times to make certain the timing is perfect, If the
above condition fails to be met,Coupling (#35895 X) must be repositioned, For access,
remove Crank Chamber Cover (#35888 N) and Gasket (#35888 P, Page 21). Loosen the
Coupling Clamping Screws (#22519 F), If the Synchronizing Gauge Rod moves more to
the right while machine is rotated in a clockwise direction than in a counterclockwise
direction, the Looper is too fast and the Main Shaft should be retarded, If the Synchro-
nizing Gauge Rod moves more to the right while machine is rotated in a counterclock-
wise direction than a clockwise direction, the Looper is too slow and the Main Shaft
should be advanced, The Coupling may be secured by one Screw while the gauging
procedure is repeated to check the new relationship of the two Shafts,
NOTE: If Stationary Knife (#36250) interferes with Synchronizing Gauge Rod (#21227 CK),
remove Knife and proceed as described above.
12
From the library of: Superior Sewing Machine & Supply LLC

Fi g. E
In the event Gauge
(//21227 CG) is not available,
synchronization may be checked
as follows: Certify the Needle
Bar he ig ht and Looper gauge.
Insert fl 2 and /13 Needles into
position. Usin g a Collar clamped
on the upper portion of the Needle
Bar, limit the downward stroke
of the Needle Bar to stop within
5/32 inch of bottom of stroke.
Observe carefully the position
of the Looper point with respect
to the Needles at both positions
ob t ain a b 1e by clockwise and
counterclockwise rot at ion of
II and w he e 1. If machine is
synchronized, both positions of
the Looper will be exactly the
same with re g ard to the
Needles.
LOOPER AD.TUSTMENT
Fig. F
With the throat plate and feed dogs removed, insert the looper (A, Fig.
H) and tighten screw (B). It is important to align the looper blade 90° to the
looper shaft. Place the narrow end oflooper gauge (C), No. 21227 CU. in the
middle feed bar slot of the cylinder casting (D). Insert a 1/8 inch diameter
screw driver (E) in the half circle cutout of looper gauge and press the gauge
against the right slide of the feed bar slot and also against the looper blade.
If the looper blade does not align with the end of the gauge, loosen screw (B)
and turn looper (A) until blade of looper and gauge are aligned. Tighten screw
(B) securely.
SetLooper Avoid to.094 inch, usinggauge (1121227 BV, Fig. E). If gauge
Fig. R is not available, a depth micrometer may be used through the hole in the end
of the Cylinder in line with the Looper Shaft, or a depth scale if accurately
read. Measurement is made of the extreme axial reciprocal ion of the Looper Shaft. In using the gauge (#21227 BV) ,
first bring the Looper Shaft to its extreme motion toward the rear (away from operator). insert the gauge through
the Looper Shaft hole in end of Cylinder until the Plunger is fully extended from the gauge while bearing firmly
against end of Looper Shaft. Tighten Clamping Screw (1189, Page 35). Bring Looper Shaft to maximum forward
position and check end of gauge for Plunger being flush with gauge body. The motion of the Plunger from extended
position to flush represents . 094 inch travel. If less looper avoid is required, use step on looper gauge, which is
. 084 inch (Fig. E). If conditions are not met, adjustment is obtained by removing Cylinder Side Cover (/I:l6286 .
Page 35) and loosening Looper Avoid Link Ball Joint Stud, right (in 1129478 Di\1, Page 31) to raise or lower Ball
Joint. Raising Ball Joint shortens avoid motion and lowering lengthens avoid motion. Reposition gauge and repeat
preceeding method.
Normal Looper gauge is 3/16 inch. With the Looper motion at the extreme left of its travel, set Looper point
to touch edge ofgauge (/121225-3/16) while left Needle rests in Vee (Fig. F). Release Looper Holder Clamp Screw
(# 22652 A- 6, Page 33) to move Looper Holder right or left. Before clamping the Screw tight, the axial setting of
Looper point to back of Needle must be done. Turn Handwheel until Looper point is flush with right side of left
Needle. Adjust Looper Holder with Screw on end of Looper Shaft to obtain a clearance between Needle and Looper
point NOT to exceed. 002 inch (Fig. G). Recheck Looper Gauge to be sure Holder has not slipped on Looper Shaft.
Looper Needle Guard may now be installed. Bring this Guard against first Needle (Fig. I-Il. Pass Looper
across all Needles and observe if free from pinching. Looper normally seats on top of the Holder. Clearance
between top of the Looper and bottom of the Stitch Tongue should be . 018 to . 025 inch . Vertical adjustment is
accomplished by means of a Screw set parallel to the Shank hole in the Looper Holder. Use a Feeler gauge with
Needles removed to check the complete cycle.
FEED ADJUSTMENTS
FEED HEIGHT
Before assembling the Main Feed Dog and Differential Feed Dog, the Eccentric Stud (1136234 D, Page 29),
which extends thru the Feed Bars at approximately the mid- area of the Cylinder, should be rotated until the slot
Fig. G
on the left end is set horizontally.
T hi s mid- setting a 11 ow s for
raising or 1 ow e ring the two
feeds simultaneously by turning
the Eccentric. The total amount
of ad j u s t men t obtainable is
approximately 7/64 inch,
measured at the rear of the Main
Feed Dog. The Stud is locked to
prevent rotation by Set Screw
(#531, Page 35). (Fig. I, B)
Differential Feed may now
be installed. Before assembling
Main Feed Dog, add the Needle
Guard to the Main Feed Dog and
push the Guard to the end of its
movement toward the rear.
Tighten Screw.
13
Fig. H
From the library of: Superior Sewing Machine & Supply LLC

Fig. I
Fig. J
Fig. K
Both the Main Feed and Differential Feed may be individually adjusted to height.
For most cases, the Main Feed, at its highest position, should rise above the top of
the Throat Plate the full depth of the teeth when the normal Presser Spring pressure
is applied. The Differential Feed may then be leveled to it (Fig. I, A).
REAR NEEDLE GUARD ADJUSTMENT
The rear Needle Guard (#36225, Page 29) should be set to clear first Needle by
• 002 to • 003 inch. Check position on other Needles to avoid pinching. If the stitch
length is altered by 1 stitch per inch, it will
be necessary to re-ch · eck Needle Guard setting.
STITCH LENGTH
B
Adjustment for stitch length is made within
the Arm of the Cylinder. Access is obtained
by removal of Plug Screw (#22539 N) located
on left side (see Page 35). A variation of stitch
length is obtained by loosening Screw (#36236 D) and sliding Clamp Block
up or down (Page 31). If raised, the stitch length increases, and if
lowered, decreases. Correctstitchlengthis obtained by trial on samples
of material used. Screw must be tightened securely.
DIFFERENTIAL CONTROL
The amount of differential is controlled by the Lever at lower left of
Cylinder (Page 35). If the Pointer is moved toward the operator, more
differential or gathering occurs, and if moved toward the needles, reverse
differential or stretching occurs. The Mounting Plate is numbered from
1 to 9, the differential action increasing with the numbers. Between 4 and
5, non-differential action is obtained.
Two Stop Screws (#36237 H, Page 35) are provided to li mit the move-
ment of the Lever to obtain predetermined position or to lock the Lever
in one position. Intermediate positions between the Studs are maintained
through friction of a P:t;"esser Spring upon the numbered plate. The
pressure of the Spring maybe controlled by means of the small SetScrew
(#73 C, Page 35) in the indicator portion of the Lever.
PRESSER FOOT ADJUSTMENT
To assemble Presser Foot to machine, raise Needle Bar to its highest
position and remove Retainer. While foot is slipped under Needles, swing
the Upper Knife into opening and engage the Cover Thread Carrier and
Hook Driving Segment (#36251 L, Page 37) with Hook Driving Sleeve
(#36251 B, Page 33). The Presser Bar may now be passed thru the
Segment and into the Presser Foot Shank. Tighten Presser Foot Screw
( #94, Page 37). If right Presser Foot Brace has not been previously
located, align Foot to Cylinder and secure with Presser Bar Guide
(36278 J Page 33) and set right Brace (#36278 D, Fig. A) to contact
Presser Foot. Otherwise, Foot may be swung against Brace first and
Presser Bar Guide is then secured to Presser Bar.
Add left Presser Foot Brace (#36278 E). Check vertical freedom.
Permit no play, yet no bind. Tighten Brace Screws when condition is
satisfactorily met. Re-check for bind.
Linkmotionof Presser Footshouldnow be checked. Motion ofCover
Thread Carrier Driving Lever and Shaft (#36251 G, Page 37) mustjack-
knife on approach to Needle Bar Head within 1/64 inch clearance as
Hand wheel is rotated clockwise (Fig. J). Meet this adjustment by
loosening Screwin Hook Driving Sleeve Lever (#36251 C, Page 33), and
rotating Sleeve (#36251 B).
Add PresserSpring (#36278 F) and Presser Spring Regulating Screw
(#36278 G). Presser BarGuide must not ride onLifterLever(#36280 J)
whenthefeeding surface is below the Throat Plate. Allow 1/32 inch play
between Lifter Lever and lift surface of Presser Bar Gu i de.
If Cover Thread Carrier and . Cover Thread Hook are not in place,
assemble Cover Thread Carrier first and position it so that a thread loop
will be carried behind the first two Needles. Add Cover Thread Hook
and set so that within one complete revolution the Hook comes within
1/64 to 1/32 inch of the Carrier at their closest position.
Wh . en the Hook swings to the left, it will pass over the Cover Thread
if thread tension is maintained against the Hook movement. Therefor.e,
the take-up should cast off after the Hook crosses the Cover Thread
(Fig. K).
14
From the library of: Superior Sewing Machine & Supply LLC

If difficulty is encountered, check the thread tension and Take-up timing
and the condition of the point of the Hook proper. An extremely high po li sh
and correct angle are necessary. Due to the clearance requirements,
bending the Hook is not recommended.
Turn machine clockwise and observe transport of loop on Hook, which,
as the third and fourth Needles descend, should not be pierced by any
Needles nor picked by Retainer. These latter actions result in mal-
formed stitches. If Hook and Carrier are too close together, the thread
may be rolled off the Hook. Too much motion to the ri g ht will cause the
Retainer to deflect from the Hook and strike the Throat Plate.
When the Needle Bar is at the top of its stroke, the Presser Foot Lift
is approximately 5/16 inch and the Foot is not endan g ered by the Needle
Head. However, whenthe Needle Baris down, means havebeenprovided
to prevent raising the Foot into the path of the Needle Head and damaging
the Cover Thread Hook. Adjustment is provided as follows:
Lower the Needle Bar by turning the Handwheel to the bottom of the
stroke. Screw Presser Foot Lifter Stop Plunger (#36280 A, Page 25)
clockwise until it strikes Crankshaft Counterwei g ht. While applying Fig. L
pressure to raise the Foot, back Plun g er out by unscrewin g until Foot has risen and Cover Thread Hook is
within 1/64 inch of underside of Needle Bar Head (Fig. L). Fric ti on of threads in Stop Plunger Segment (#36280 C)
will prevent Plunger from turning. Friction may be controlled by spreading opening of Segment.
The Frame Chip Guard (#36279, Page 27) is ma i nta i ned in normal closed position by the cam action of its
washer (#36279 A) against si milar cam on Hub of the Chip Guard. These two surfaces have an obliquely milled
step which imparts rotation through the axial pressure of Chip Guard Spring (#36279 B). Adjustment for position
as well as tension is made when Guard is closed by slightly loosening Screw {#22777 B) and turning Washer
(#36279 A) clockwise with Spanner Wrench (#21388 Y) until a slight separation of faces is obtained. Tighten
Screw and test action. When Guard is closed, light resistance to opening should be felt.
ADJUSTMENT OF TRIMMING KNNES
If the lower Knife (#36250, Page 37) has not been previously assembled, this must
be done before upper Knife is inserted into Holder. Lower Knife should extend into slot
between toes of Foot from 1/32 to 1/16 inch.
With Knife Holder Guide Collar (#36273 K, Page 33) in released condition, insert
upper Knife into upper Knife Holder (#36273 G) and bring Knife Driving Bracket
(#36273 M)to maximum leftposition. Set Blade so that its cuttingedge clears Presser Fig. L 1
Foot by about 1/64 inch, then tighten Knife Holding Screw (#22894 X). Swing Knife to
rear of opening in left of Foot and secure Guide to Shaft of Knife Holder Shank (#36273 A), allowing about 1/8
inch clearance between Guide and lower Bearing of Knife Driving Arm. To obtain the best trimming condition
between Lower Knife (A, Fig. L 1) and Upper Knife (B, Fig. L 1), the distance between Knife Drive Connection
Ball Joint, Left (#52848 B, Page 33) and Knife Drive Connection Ball Joint, Right (#52848 C, Page 33) should
be set so that when the Upper Knife is at the left end of its travel, the sides of the Upper Knife and the sides of
Lower Knife are parallel (Fig. L 1). A check should be made to insure that no interference is created between
Knife Drive Bracket (#36273 M, Page 33) and left presser foot guide Screw (#22653 B-8, Page 27), when knife
is at right end of travel and also between left toe of the Presser Foot and Knife Support (#36273 D, Page 33)
when knife is at left end of travel. Repositioning of lower Knife may be necessary after trial seam is made in
order to secure equal margin from the edges of the two plies to the two center rows of stitching.
NEEDLE THREAD ADJUSTMENTS
Four Needle Thread Take-ups (#36264 B) are provided for independent needle thread control (Fig. M, A).
An approximate setting for the initial sew-off is to level the four Take-ups to the height of the thread in the
Needle Lever Eyelet at its lowest position and then raise the first Take-up (nearest the operator) 1/8 inch and
the second Take-up 1/16 inch. (The position and number of Take-ups corresponds respectively to those of the
Needles.) Further adjustment may be necessary to effect a satisfactory Take-up of the Needle Thread Loops
after cast-offfrom the Looper or to stretch the thread so that upon relaxation of the thread during the up-stroke,
a satisfactory Needle Loop will be formed and skipping prevented. On the down stroke of the Needle, the first
needle thread should be pulled up snugly against the Stitch Tongue to control the triangle of the subsequent
stitch.
ThefourFrameNeedleThread Eyelets (#36271 A) should be set eye
to eye, with the eyelets in the holder ( 1/ 36271) as a startin g point (Fi g.
lVI, B). The adjuster should change as necessary to control tension on
the thread on the down stroke so that the needle thread loops around
the Looper will remain firm and will not seek random positions.
The Unlocking Spring (#36271 E,Page 16, Fig. N, A) provides a pro-
portional amount of pull-up of the needle threads when the machine is
reversed for unlocking the stitch so that loops will not form on front of
the Needles and become caught by the Looper. A minimum drop of the
straight portion of the wire is desirable and is controlled by an Adjust-
ing Screw (#22768 B). Usually 1/8 inch drop is sufficient. The tension
of the Spring can be varied by turning the knurled knob of the Sprin g
Holder (#36271 F) when released by loosening Screw (#22593). Adjust
the tension so that 1/2 oz. upward pull will raise the straight po r tion
of the Spring to be in line with the thread holes of the Knife Drivin g
Bracket (#36273 M).
15
Fig. M
From the library of: Superior Sewing Machine & Supply LLC

Fig. N
Fig. 0
Fig. P
Fig. Q
Tension of the s ix threads is individually controlled. Tension of the four
needle threads is seldan unifonn as usually the first needle thread has rrore
tension than the other three. As an average condition for sewing off, the Needle
Thread Tensions may be set to the following #1, 3 1/2 oz, 112 3 oz. #3 , 3 oz. and
#4, 3 oz. Tens10n is measured by a horizontal pull through the Needle Lever
Eyelet when the Needle Bar is alrrost at the bottan of stroke. A light Spring
Scale such as a postal scale, similar to that illustrated (Fig. 0) may be used.
further adjustment dependin g upon the material will produce a balanced stitch
having the fir st and fourth needle loops pulled up and the second and third
needle loops snall and even. Only enough tension to pull up the stitch should
be used.
ICOPER 'IliREAD AJJ.JlJSThiENI'
The Cast-off (#36204) is nonnally positioned with the right end flush with
the Cast - off Support Plate (#36204 A, Fi g . P). ~loving the Cast-off Plate to
another position will alter the Take-up tli!lin g and this method may be used to
advantage where i t is desired to change the timing very slightly without rotat -
ing the Take-up on the Main Shaft. The Thread Eyelets are placed to max:imtm
right posi ti on. Moving these Eyelets to left will increase the rurount of thread
pulled off. Time the Take-up so that the casting - off fran the sharp corner
occurs when the Needle Bar has descended 7/64 inch fran its highest position .
The
tens ion of the I.DOper Thread, as measured by pullin straight fran the
end of Cylinder, is about 2 1/2 ozs. , which is considerably rrore than flat bed
machine s maki ng a similar stitch with one Looper. The actual tension selected
after trial with the mater i al and yarn used should be sufficient to prevent
thread fran bein g stolen fran the Gone dur i ng the take-up portion of the cycle
but the minimum depend i ng on speed and condition of yarn or thread. An increase
of tension above the nonnal amount might be desirable on some operations to pull
the plies together MOre ti g htly. An excessive tension will have a tendency to
disturb the triangle fonnation, especially while chaining.
Cover Thread Take-up Eyelet should be set with 3/32 inch gap between lower
edge of Eyelet and Cast-off Plate (Fig. K). Position of this Eyelet detenn i n es
the amount of thread pulled off for the cover stitch, thus controlling in con-
junction with tension the fullness of the cover stitch loops. The Take-up
should be timed to cast off during the interval between the crossing of the
thread by th Cover Thread Hook and the start of rise of the Needle Bar. The
~~t-off should always occur prior to Needle Bar rise. Otherwise, tension will
remain in the Gover Thread and the fonnation of the first needle thread loop
will be impaired.
The tension of the Gover Thread is approximately 1 oz., measured with a
horizontal pull directly fran the Eyelet which is located in the left wall of
the Main Frame. Only enough tension is used to effect thread control and
prevent thread fran bein g stolen fran Gone. An increase in tension may be used
to tighten Cbver Thread, but abnonnally high tension results in disturbance to
the first row of stitchin g. Adjustment of the Cover Thread Ca.ITier and the
Cover Thread Hook of the Presser Foot is described under Presser Foot Adjustment.
AWUS'IMEN.I' OF TENSION RELEASE
When the Presser Foot is raised by the Foot Lifter Mechanisn, the Thread
Tensions are sinultaneously relea..<;ect by Tension Release Shaft (#36292 N, Detail
19, Page 25) which is rotated by Lever (#36280 M) lifting Tension Release Pins
(#35792 T) which opens the Tension Discs. When Presser Foot is down the Tension
Discs clamp the thread and tension is applied. The Tension Release i s set
correctly when i t begins to function as Presser Foot is raised approximately
1/32 inch above the Throat Plate and is entirely released when Presser Foot has
reached its hi g hest position . Positioning of the Tension Release Shaft may be
adjusted by insertin g a large screwdriver into the right end of Shaft, loosening
screw (#22839 D) in Lever (#36280 H) allowing the Shaft to be turned clockwise
to raise the Pins or counterclockwise to lower same.
NJTE: A 1/32 inch clearance should be maintained between Presser Bar Lifter
Lever (#36280 J) and Presser Bar Guide (#36278 J). This can be accanp-
lished by loosening screws in Lifter Lever Link Assembly (#36280 L) and
shorten or lengthen Link as required.
Nonnally there should be 1/32 inch clearance between bottan of Presser Bar
Guide (A, Fig. Q) and Presser Bar Guide Stud (B) with Presser Foot resting on
Throat Plate (needle down position). Adjustment can be made by loosening Screw
(C) and turning Nut (D) as required to attain specified sett1n g . When sewing on
extranely light weight material and/or feed cutting is a problem, the Presser
Foot may be ''HliD" by raising Stud (B) until Guide (A) rests on shoulder of
Stud, raising Presser Foot slightly, so that only the pressure of tbe Presser
Foot Shoes contact material be i ng sewn. Tighten Screw (C).
16
From the library of: Superior Sewing Machine & Supply LLC

INSTRUCTIONS FOR SEWING PLASTIC WITH NYLON THREAD
AND WITHOUT THE 36211 RETAINER
The machine should be adjusted as per the standard adjusting instructions, except for the following:
1. The Cast-off (#36204)is normally positioned with the right end flush with the Cast-off Support Plate (#36204 A).
For sewing without the Retainer (# 36211 ), move the Cast-off (# 36204) to its extreme right position,
2. The Thread Eyelets on the Cast-off Support Plate (#36204 A) should be placed to the maximum right position,
3. Time the Take-up so that casting off from the sharp corner occurs when the Needle Bar has descended 9/64
inch from its highest position.
4. Place a Felt Pad on top of the machine under the needle threads against the back of the Stitch Unlocking Bracket
(#36271 D). Saturate this felt with some thread lubricant such as Clearco, By doing this, the needle threads
are lubricated and will pull up a better stitch on plastic,
INSTRUCTIONS FOR INSTALLING OIL SEAL RING
ON OIL PUMP SHAFT
After the top covers have been removed, follow procedure as outlined below:
1. Remove Oil Pump Assembly from machine (Det. 1 thru 20, Page 23).
2. He move both Housing Covers (#36297 A and #36297 J, Det. l and 13, Pa!")e 23).
3. Loosen Set Screws in Oil Pump Driven Gear (#36897 BR, Det. 11) and press Gear Shaft (#35897 BP, Det. 8) out
of one Pump Gear (1151493 E, Det, 7).
4. Remove Oil Pump Driven Gear (#35897 BR).
5. If the inside surface of the Oil Pump Housing(# 35897 BN, Det. 10) is rough or grooved, it is desirable to smooth
tlus surface with a fine file. (This is the surface where the Steel Washer of the seal contacts the Pump Housing. )
6. To assemble, start from the left side and put the Pump Gear Shaft (1135897 BP)through the left side of the Pump
Housing (#35897 BN). Next, put the Oil Pump Driven Gear (#35897 BR) on the shaft with the screw hub to the
right.
Then put Oil Seal Ring (#660-220, Det. 12A) next to the Gear. The Steel Washer (116042 A, Det. 12B)
goes between the Oil Seal Ring and the right side of the Pump Housing. (This is the surface mentioned in para-
graph five that should be smooth on the Housing so that a good seal is obtained. ) Place another Oil Pump Gear
(1/51493 E) on the right end of Gear Shaft (#35897 BP) and press on the Shaft until there is no end shake or bind.
7. Push the Oil Pump Driven Gear (#35897 BR) against the Oil Seal Ring and Washer so that it is snug. Then
tighten Set Screws of Oil Pump Driven Gear. (CAUTION: Do not compress the Oil Seal Ring enough so that the
Pump Shaft is hard to turn, as it will damage the Driving Gear (#35897 BY) on the Mainshaft. Torque should
be set at 2 to 4 ounces inch. )
8, Replace the two Idle Gears (#51493 E) and put on the Housing Covers(#36297 A and #36297 J)· Do not use any
sealer between the Housing and Covers. Just be sure the surfaces are clean, After the Covers are tightened,
it is desirable to put a bead of #1 Permatex along the joint of the Cover and the Housing.
9, When the Pump is replaced in the machine, care must be taken to be sure that the Cylinder Suction Tube enters
the In-take Filter Screen and that the Gear on the Mainshaft is not too tight against the Gear on the Pump.
INSTRUCTIONS FOR REPLACING GEAR SHAFT (36295 W)
IN DRIVE UNIT (29480 CK)
1. Remove Bottom Cover (# 36295 Z, Det, 34, Page 19) and Pulley (#36295 G or 36295 H, depending on the Shaft
being replaced).
2. Remove Oil Slinger Screws (#22882 A).
3. Remove Oil Wick (#666-128).
4. Remove Oil Tube (#36293 A). Insert a screwdriver into the Tube, tilt slightly, and lift the Tube out.
5, Remove Ball Bearing Cap (#36295 AC) from end of Housing and remove entire Shaft assembly.
6, Loosen Holding Screws (#36295 AE) on Collar of Ball Bearing (#660-302) and remove Ball Bearing from Shaft.
7. Loosen Holding Screw in Collar (#21705) and remove Collar and Bushing (#36295 Y).
8, Assemble the Bushing, Collar and Ball Bearing on the new Shaft and put the assembly into the Housing.
9, Replace the Oil Wick (#666-128) in the Oil Tube (#36293 A) and secure the Bushing (#36295 Y) in the Housing
with the Oil Tube,
10. Replace the Ball Bearing Cap (#36295 AC).
11. Place a. 009 inch thickness Gauge between the Gear Locating Pin (#36295 AB) and the Gear Shaft, Holding the
Shaft against the Gau ge and Pin, push the Ball Bearing Holder Collar away from center as far as possible and
secure Holding Screws ( 36295 AE), NOTE: To obtain access to Holding Screws (#95) secure Collar (#21705)
with , 001 inch oil clearance from Bushing (#36295 Y),
12. Replace Bottom Cover (#36295 Z) and Pulley (#36295 G or 36295 H) and fill with 3 ounces of oil.
REMOVING EXCESSIVE PLAY FROM GEAR SHAFT
To remove excessive end play in either Gear Shaft (#36295 W), remove Bottom Cover (#36295 Z). Loosen
Holding Screws in Collar (#21705). Push the Gear Shaft toward the Pulley end as far as it will go and while holding
the Shaft in this position, push the Collar against the Bushing (#36295 Y) and tighten Screws in Collar, Replace the
Bottom Cover (#36295 Z).
17
From the library of: Superior Sewing Machine & Supply LLC

·· '
2
1 ~
\ I
\I
~
l.l
---..J
-L1
From the library of: Superior Sewing Machine & Supply LLC

Ref.
No.
1
2
3
4
5
SA
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Part
No.
651 B-24
21371
UE
660-275
660-161
35895 R
21261 M-210
29480
CK
22571 A
51-120
Blk.
22569 c
36295 AC
36295 AD
36295 AE
660-302
21705
22894 c
36295 y
36295 v
36295 AB
666-96
36295 w
22882 A
36295 H
36295 F
22894 v
61321 J
61321 L
22574
36295 G
22650 AE-4
22894 X
36295 AA
36293 A
666-128
36295 z
22569 c
22652 F-20
36295 J
25 s
FOR STYLES 36200 A, B AND X
DRIVE UNIT, BELT GUARD AND MOUNTING STUD
Description
Nut
Washer
------------------------------------------
Neoprene Isolator -------------------------------
Felt Isolator -----------------------------------
Mounting Stud -----------------------------------
Vee Belt, 21 inch outside circumference ---------
Auxiliary Support and Drive ---------------------
Screw --------------------------------------
Oil Gauge ----------------------------------
Screw --------------------------------------
Ball Bearing Cap ---------------------------
Gasket -------------------------------------
Amt.
~
6
6
6
9
3
1
1
2
1
6
2
2
Screw -------------------------------------- 4
Ball Bearing ------------------------------- 2
Collar -------------------------------------
Screw ---------------------------------
Bushing ------------------------------------
Machine Support ----------------------------
Gear Locating Pin --------------------------
Oil Filler Plug ----------------------------
Gear Shaft ---------------------------------
Screw --------------------------------------
Handwheel Assembly -------------------------
Pulley --------------------------------
Screw ----------------------------
Handwheel -----------------------------
Spacer Plate --------------------------
Screw ---------------------------------
Variable Speed Pulley ----------------------
Socket Set Screw ----------------------
Screw ---------------------------------
Gasket -------------------------------------
Oil Tube -----------------------------------
Oil Wick -----------------------------------
Bottom Cover -------------------------------
Screw --------------------------------------
Screw -------------------------------------------
Belt Guard --------------------------------------
Screw -------------------------------------------
19
2
2
2
1
1
1
2
2
1
1
2
1
1
3
1
1
2
1
2
2
1
8
2
1
2
From the library of: Superior Sewing Machine & Supply LLC

20
From the library of: Superior Sewing Machine & Supply LLC