UnionSpecial 56200 Setup guide

From the library of: Superior Sewing Machine & Supply LLC
CATAL OG NO.
129M
Fif th E dition
CL A SSES
56 200
56300
56400
56500
56700
56900
®
Finest Quality
Adjusting instructions and
illustrated parts list
, .. ,
u
Series 500 00 -Advanced,
hig h spe ed , f la t b ed m ac hin es

From the library of: Superior Sewing Machine & Supply LLC
56200 H
56200 K
56200 L
56200 R
56200 S
56200 W
56300 E
56300 F
56300 G
56300 H
56300 M
56300 N
CATALOG NO. 129 M
ADJUSTING INSTRUCTIONS AND
ILLUSTRATED PARTS LIST FOR
SERIES 50000
ADVANCED, HIGH SPEED
FLAT BED MACHINES
STYLES
56300 R
56300 U
56300 W
56300 X
56300 AH
56300 AL
56400 D
56400 P
56400 R
56400 S
56400 T
56400 W
Fifth Edition
©1965,
1982
By
Union Special Corporation
Rights Reserved in
All Countries
Printed in
U.S.A.
March, 1982
2
56400 X
56500 A
56500 B
56500 C
56500 J
56500 R
56500 U
56700 J
56900 H
56900 J
56900 P
56900 R

From the library of: Superior Sewing Machine & Supply LLC
IDENTIFICATION OF MACHINES
Each UNION SPECIAL machine carries a Style number, which on these Classes of mach-
ines, is stamped into the style plate affixed to the right front of machine.
The serial number is stamped in the casting at the right rear base of machine.
CLASS DESCRIPTION (56200)
Advanced high speed, low or medium throw, flat bed machines. Single needle, one
looper, enclosed automatic lubricating system. Maximum reconmended speed 6500
R.P.M. Maximum work space to right of needle bar 8 1/4 inches (209.6mm).
MACHINE STYLES
56200 H Low throw machine. Typical application - For miscellaneous seaming oper-
ations
on light to medium weight wash and wear materials where chaining
and a short stitch are required. Seam specification 401 SSa-1. Type 101
GS needle.
56200 K Low throw machine. Typical application - For binding aprons and dresses
made with light to medium weight materials. Seam specification 401 BSc-1.
Type 106 GLS needle. Uses cut edge binding 3/4, 7/8, 1, l 1/8, 1 1/4 inch
(19.0, 22.2, 25.4, 28.6,
31.8nm) wide and produces a 7/32, 1/4, 9/32,
11/32, 13/32 inch (5.6,
6.4, 7.1, 8.7, 10.3mm) finish, respectively.
#56200 L Medium throw machine. Typical application - For binding mattress ticks
made with medium to medium heavy weight materials. Seam specification
401 BSa-1. Type 126 GS needle. Uses selvage edge binding 5/8, 3/4, 7/8
inch (15.9, 19.0,
22.2mm) wide and produces a 5/16, 3/8, 7/16 inch (7.9,
9.5, 11.1mm) finish, respectively.
*56200 R Low throw machine. Typical application - For joining shoulders of shirts
in one operation made with light to medium weight materials. Seam specifi-
cation 401 LSe-1. Type 106 GLS needle.
56200 S Low throw machine. Typical application - For miscellaneous operations on
woven materials, knitted drawer bands, knitted shirt fronts made with
light to medium weight materials. Seam specification 401 SSa-1. Type
108 GHS needle.
56200 W Medium throw machine. Typical application - For seaming cotton flannel and
leather palm gloves. Seam specification 401 SSa-1. Type 128 GAS needle.
CLASS DESCRIPTION (56300)
Advanced high speed, medium or high throw, flat bed machines. Single needle, one
looper, enclosed automatic lubricating system. Maximum work space to right of needle
bar 8
1/4 inches (209.6mm).
#Discontinued - Replaced by Style 56300 M.
*Discontinued - In most instances, replacement parts are available.
3

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CLASS DESCRIPTION (56300 Continued)
MACHINE STYLES
56300 E Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet, automatic chain cutter and pressure release attachment.
Typical application -
For seaming trousers and coats made with medium
to medium heavy weight materials. Seam specification 401 SSa-1. Type
128 GBS needle. Maximum reconmended speed 6500 R.P.M.
56300 F Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet and a feeding presser foot. Typical application - For
seaming trousers and coats made with medium to medium heavy weight
durable press materials.
Seam specification 401 SSa-1. Type 128 GBS
needle. Maximum recommended speed 6500 R.P.M.
56300 G Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet. Typical application - For seaming trousers, coats and
similar garments, made of medium to medium heavy weight materials. Seam
specification 401 SSa-1. Type 128 GBS needle. Maximum recommended speed
6500 R.P.M.
56300 H High throw machine. Typical application - For seaming couch covers, with
or without rope welt made with medium heavy to heavy weight materials.
Welt guided to the left of needle. Seam specification 401 SSa-1 or 401
SSk-1 modified. Type 143 GS needle. Maximum recommended speed 6000 R.P.M.
56300 M High throw machine. Typical application - For binding mattress ticks
made with medium heavy to heavy weight materials. Seam specification 401
BSa-1. Type 126 GS needle. Uses selvage edge binding 5/8, 3/4 and 7/8
inch (15.8, 19.0
and 22.2mm) wide, and produces a 5/16, 3/8 and 7/16 inch
(7.9, 9.5
and 11.1mm) finish respectively. Maximum recommended speed 6000
R.P.M.
56300 N Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet and top-grip feed mechanism. Typical application - For edge
seaming operations on trousers, slacks, dress pants, jackets made of light
to medium weight durable press materials. Maximum seam width isl inch
(25.4mm) necessitated by the top-grip-feed mechanism. Seam specification
401 SSa-1. Type 128 GBS needle. Maximum recommended speed 6500 R.P.M.
56300 R Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet and feeding presser foot. Typical application - For seaming
side and inseams on trousers, back and side seams on coats, sleeve seams
on jackets, coats made with medium to medium heavy weight materials. Seam
specification 401 SSa-1. Type 128 GBS needle. Maximum recommended speed
6500 R.P.M.
*56300 U Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet and top-grip-feed mechanism. Typical application - For
edge seaming operations on trousers, slacks, dress pants, jackets and
similar garments made of light to medium weight materials. Maximum seam
width isl inch (25.4mm) necessitated by the top-grip-feed mechanism.
Seam specification 401 SSa-1. Type 128 GBS needle. Maximum recommend-
ed speed 6500 R.P.M.
*Discontinued - In most instances, replacement parts are available.
4

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MACHINE STYLES (Continued)
56300 W Medium throw machine, equipped with zipper guiding presser foot for
crossing zipper attached to pants
fly. Typical application - For attach-
ing waistbands to men's trousers. Seam specification 401 SSa-1. Type 128
GAS needle. Maximum recommended speed 6500 R.P.M.
*56300 X Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet, top-grip-feed mechanism and presser foot with yielding
section to the
left of needle. Typical application - For edge seaming
operations on trousers, slacks, dress pants, jackets and similar garments
made of light to medium weight materials. Maximum seam width isl inch
(25.4mm) necessitated by the top-grip-feed mechanism. Seam specification
401 SSa-1. Type 128 GBS needle. Maximum recommended speed 6500 R.P.M.
56300 AH Medium throw machine, equipped with thumbscrew adjustable frame needle
thread
eyelet, top-grip-feed mechanism and presser foot with yielding
section to the
left of needle. Typical application - For edge seaming
operations on trousers, slacks, dress pants, jackets ~nd similar garments
made of light to medium weight durable press materials. Maximum seam
width isl inch (25.4mm) necessitated by the top-grip-feed mechanism.
Seam specification 401 SSa-1. Type 128 GBS needle. Maximum recommended
speed 6500 R.P.M.
56300 AL Medium throw machine, equipped with thumbscrew adjustable frame needle
thread eyelet. Typical application -
For miscellaneous operations on
paper garments and plastic products requiring a long stitch. Stitch
range is 4 to 7 per inch. Seam specification 401 SSa-1. Type 128 GAS
needle. Maximum recommended speed 6000 R.P.M.
CLASS DESCRIPTION (56400)
Advanced high speed, low throw, flat bed machines. Two needles, independent row,
left needle in front, two loopers, enclosed automatic lubricating system. Type
106 GHS needle. Prepared for use with knee press for foot lifter. Maximum recom-
mended speed 6500 R.P.M. Maximum work space to right of needle bar 8 1/4 inches
(209.6mm).
MACHINE STYLES
56400 D To be used with Galkin close-coupled puller. Attachments not furnished
with machine. Typical application -
For hemming and simultaneously in-
serting elastic in tops and legs of knitted undergarments made with light
to medium weight materials. Seam specification 401 EFg-2. Standard
gauge Nos. 12, 16.
56400 P Typical
sleeves
erials.
12, 16,
application -
For piecing sleeves, joining shoulders, setting
of ordinary quality shirts made with light to medium weight mat-
Seam specification 401 LSc-2. Standard gauge Nos. 6, 8, 10,
18.
56400 R Typical application - For attaching set-on center plaits and interlining
strip to skirts made with light to medium weight materials. Starts oper-
ating
at neck. Seam specification - 401 LSm-2. Type 106 GHS needle.
Standard
gauge No. 48. Maximum recommended speed 6500 R.P.M.
*Discontinued - In most instances, replacement parts are available.
5

From the library of: Superior Sewing Machine & Supply LLC
MACHINE STYLES (Continued)
56400 S Typical application - For folding and attaching inside button facings to
fronts of shirts made with light to medium weight materials. Start opera-
tions
at the neck. Facing strip guided next to feed dog. Seam specifica-
tion 401 LSm-2. Type 106 GHS needle. Standard gauge No. 48. Maximum
recommended speed 6500 R.P.M.
56400 T Typical application - For piecing sleeves, joining shoulders and setting
sleeves of extra fine quality shirts made with light to medium weight
materials.
Seam specification 401 LSc-2. Type 106 GHS needle. Standard
gauge Nos. 8, 10, 12, 16. Maximum recommended speed 6500 R.P.M.
56400 W Typical application - For piecing sleeves of shirts and pajamas, joining
operations
on woven shorts made with light to medium weight materials,
where the majority of the work consists of straight seams. Seam specifi-
cation 401 LSc-2. Type 106 GHS needle. Standard gauge Nos. 8, 10, 12,
16.
Maximum recommended speed 6500 R.P.M.
56400 X Typical application - For quilting collar bands of shirts made with light
to medium weight materials. No. 26 gauge is equipped with a folder so
that this machine can also be used for setting sleeves on extra fine
quality shirts. Seam specification 401 SSa-2 or 401 LSc-2. Type 106 GHS
needle. Standard gauge Nos. 24, 26. Maximum recommended speed 6500 R.P.M.
CLASS DESCRIPTION (56500)
Advanced high speed, high throw, flat bed machines. Two needles, independent row,
two loopers, enclosed automatic lubricating system. Maximum work space to right of
needle bar 8 1/4 inches (209.6rnn).
MACHINE STYLES
56500 A Typical application - For seat seaming operations on trousers and similar
garments
made of medium heavy to heavy weight materials. Seam specifica-
tion 401 SSa-2. Type 130 GS needle. Available for 5 stitches per inch
only. Standard
gauge No. 1 only. Maximum recornnended speed 6000 R.P.M.
(Formerly known as Style 56500 N-5).
56500 B Typical application - For seaming trousers and similar garments made of
medium heavy to heavy weight materials. Seam specification 401 SSa-2.
Type 130 GS needle. Available for 7 stitches per inch only. Standard
gauge No. 1 only. Maximum recommended speed 6000 R.P.M. (Formerly known
as Style 56500 N-7).
56500 C Typical application - For seaming trousers and similar garments made of
medium heavy to heavy weight materials. Seam specification 401 SSa-2.
Type 130 GS needle. Available for 10 stitches per inch only. Standard
gauge No. l only. Maximum recommended speed 6000 R.P.M. (Formerly known
as Style 56500 N-10).
56500 J Typical application - For felling overalls, coats, combination suits and
similar garments made of medium heavy weight materials. Seam specifica-
tion 401 LSc-2. Type 128 GS needle. Standard gauge Nos. 16, 18. Maximum
recommended speed 6000 R.P.M., depending on material or operation.
6

From the library of: Superior Sewing Machine & Supply LLC
MACHINE STYLES (Continued)
56500 R Typical application - For attaching risers to dungarees, piecing sleeves
on denim jackets and for attaching overall bibs made of medium heavy to
heavy weight materials. Seam specification 401 LSc-2. Type 128 GS needle.
Standard
gauge No. 18. Maximum recommended speed 6000 R.P.M., depending
on material or operation.
56500 U Typical application - For seaming trousers made of durable press material
or
medium heavy to heavy weight materials. Seam specification 401 SSa-2.
Type 130 GS needle. Available for 7 stitches per inch only. Standard
gauge No. l only. Maximum recommended speed 6000 R.P.M.
CLASS DESCRIPTION (56700)
Advanced high speed, low throw, flat bed machines. Two needles, independent row,
needles abreast, two loopers, enclosed automatic lubricating system. Maximum work
space to right of needle bar 8 1/4 inches (209.6mm).
MACHINE STYLE
56700 J Equipped with
11
Tru-Front
11
folder. Typical application - For one operation
folding
and attaching
11
Set-on
11
center plait and interlining strips to
fronts of
shirts and similar garments made of light to medium weight mat-
erials. Starts operation at neck. Plaits used in garment lengths and ex-
tends 1/4 inch
(6.4mm) beyond the rows of stitching. Seam specification
401 LSm-2. Type 108 GKS needle. Standard gauge Nos. 56, 64. Maximum
recommended speed 6500 R.P.M.
CLASS DESCRIPTION (56900)
Advanced high speed, high throw, flat bed machines. Three needles, independent row,
left needle in front, three loopers, enclosed automatic lubricating system. Maximum
recommended speed 6000 R.P.M. Maximum work space to right of needle bar 8 1/4 inches
(209.6mm).
MACHINE STYLES
56900 H Typical application - For setting sleeves, shoulder seaming on denim
jackets made with medium heavy to heavy weight materials. Seam specificat-
ion 401 LSc-3. Type 128 GAS needle. Standard gauge Nos. 8, 9.
56900 J Typical application - For seaming operations on jackets made of medium
heavy to heavy weight materials. Seam specification 401 LSb-3. Type 147
GKS needle. Standard gauge No. 9.
56900 P Typical application - For attaching risers to the back of jeans made with
medium heavy to heavy weight materials. Seam specification 401 LSc-3.
Type 147 GKS needle. Standard gauge No. 9.
56900 R Typical application - For seat seams, outseam or inseam on jeans made from
heavy weight denim. Seam specification 401 LSc-3. Type 147 GS needle.
Standard
gauge No. 9.
7

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NEEDLES
Each needle has both a type 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, denotes largest diameter of blade, measured midway between shank
and eye. Collectively, type and size number represent the complete symbol, which is
given on the label of all needles packaged and sold by UNION SPECIAL.
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:
11
1000 needles, Type 106 GHS, Size 090/036
11
•
The type numbers of the needles recommended for each style of machine covered
by this catalog are given in the machine style or class description. Other needles
are available, but the ones indicated are those recorrnnended to produce the most
satisfactory results. The type numbers of the recommended needles together with
their descriptions, and the sizes available are listed below:
Type No.
101 GS
106 GHS
108 GHS
108 GKS
126 GS
128 GS
128 GAS
128 GBS
130 GS
Description and Sizes
Round shank, round point, extra short, double groove, struck groove,
chromium plated -sizes 022, 025, 027, 080/032, 049, 054.
Round shank, round point, extra short, double groove, struck groove,
ball eye, ball
point, chromium plated - sizes 070/027, 075/029,
090/036.
Round shank, round point, extra short, double groove, struck groove,
ball eye, ball point, spotted,
chromium plated - sizes 070/027,
075/029, 080/032, 090/036, 100/040 110/044, 125/049.
Round shank, round point, extra short, double groove, struck groove,
oversize ball eye, spotted,
chromium plated -sizes 080/032, 090/036,
100/040.
Round shank, round point, short, double groove, struck groove, ball
eye,
chromium plated -sizes 080/032, 100/040, 054.
Round shank, round point, short, double groove, struck groove, ball
eye, spotted, undersize
eye and groove 27% of size of needle, chrom-
ium plated -sizes 090/036, 100/040, 110/044, 125/049, 140/054.
Round shank, round point, short, double groove, struck groove, ball
eye, spotted,
chromium plated - sizes 080/032, 090/036, 100/040,
110/044, 125/049, 140/054, 150/060, 170/067.
Round shank, round point, short, double groove, struck groove, ball
eye, spotted, ball point,
chromium plated - sizes 080/032, 090/036,
100/040, 110/044, 125/049, 140/054, 150/060.
Round shank, round point, short, double groove, struck groove, ball
eye, spotted, government,
chromium plated -sizes 080/032, 090/036,
100/040, 110/044, 125/049, 140/054, 150/060.
8

From the library of: Superior Sewing Machine & Supply LLC
NEEDLES (Continued)
Description
and Sizes
Type No.
143 GS
Round shank, round point, No. 2 bag, double groove, struck groove,
spotted,
chromium plated -sizes 140/054, 150/060, 170/067, 230/090.
147 GKS
Round shank, round point, long, double groove, struck groove, over-
size ball eye, spotted, short point, standard
eye and grooves,
chromium plated -sizes 090/036, 100/040, 110/044, 125/049, 140/054.
Selection of proper needle size
is determined by size of the thread used.
Thread should pass freely through needle
eye in order to produce a good stitch
formati ,' on.
LUBRICATION
Use a straight mineral oil with a Saybolt viscosity of 90 to 125 seconds at 100
degrees F. This is equivalent to Union Special Corporation Specification No. 175.
Before operating,
fill machine with oil at
plug screw (A, Fig. 1). While filling machine
with oil, check gauge (B). When proper oil level
is reached, gauge needle will register on black
line marked
11
FULL
11
• Oil must be added when gauge
needle registers on black line marked "LOW'. Al-
though
the machine can be operated safely when
gauge needle registers in the "OPERATE" zone, it
is recommended to always check oil level before
operating, to be sure machine is filled with oil
to the "FULL" mark. CAUTION: DO NOT over fill
machine.
To drain oil, remove plug screw (C), or low-
er crank chamber cover on back of machine. Oil
must be changed every 2000 operating hours to
minimize wear.
On new machines, or a machine out of service
for an extended period of time; lubricate machine
as follows:
Remove head cover, clean.out lint, then di-
rectly oil needle bar link and needle bar. Re-
place head cover and fill machine with oil to
proper
level. Run machine at low RPM to ensure
proper
lubrication of components preventing any
damage which may occur from lack of oil distri-
bution.
9
Fig. 1

From the library of: Superior Sewing Machine & Supply LLC
CAUTION: FIii oll reservoir
before starting.
Machine has been drained
before shipping.
FIii main reservoir
here.
Fig. 2
THREADING AND OILING DIAGRAM
FOR ALL STYLES EXCEPT 56300 E,F,G,N,R,U,X,AH and AL
full mark on gauge.
Oil has been drained from machine before shipping and the reservoir must be
filled before starting to operate. Maintain oil level in "OPERATE" zone; add oil when
needle of gauge registers on the black line marked "LOW". Machine is automatically
lubricated
and no oiling other than keeping the main reservoir filled is necessary.
Refer to instructions
under
11
LUBRICATION
11
and "CHANGING STITCH LENGTH" for additional
information.
Thread machine as illustrated above for all Styles except 56300 E,F,G,N,R,U,X,
AH and AL.
10

From the library of: Superior Sewing Machine & Supply LLC
CAUTION: Fill oll reservoir
before starting.
Machine has been drained
before shipping.
FIii main reservoir here.
FIii reservoir to
full mark on gauge.
CAUTION: Be sure looper connection Is up before sewing.
Fig. 2A
THREADING AND OILING DIAGRAM
FOR STYLES 56300 E,F,G,N,R,U,X,AH and AL
Oil has been drained from machine before shipping and the reservoir must be
filled before starting to operate. Maintain oil level in
11
0PERATE
11
zone; add oil when
needle of gauge registers on the black line marked
11
LOW
11
• Machine is automatically
lubricated
and no oiling other than keeping the main reservoir filled is necessary.
Refer to instructions under
11
LUBRICATION
11
and "CHANGING STITCH LENGTH" for additional
information.
Thread machine as illustrated above for Styles 56300 E,F,G,N,R,U,X,AH and AL.
11

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ADJUSTING INSTRUCTIONS
NOTE: Instructions stating direction or location, such as right, left, front or rear
of
machine, are given relative to operator's position at the machine. The
handwheel rotates counterclockwise, in operating direction; when viewed from
the right end of machine.
OIL GAUGE CALIBRATION
To recalibrate oil gauge, follow instructions in sequence as listed:
-Place machine upright on a level surface.
-
Remove plug screw (C, Fig. 1) and tip machine forward to drain all oil from reser-
voir.
-
Remove lower crank chamber cover on back of machine.
- Fill reservoir until oil is even with bottom of knee press shaft bushing (D).
- Loosen locknut (E) and rotate calibrating screw (F) as required until gauge needle
registers
on the black line marked
11
LOW
11
•
-Tighten locknut {E), then replace plug screw (C) and lower crank chamber cover.
-Fill
machine with oil until gauge needle registers on black line marked
11
FULL
11
•
A
Fig. 3
Fig. 4
12
NEEDLE BAR ALIGNMENT
(TWO AND THREE NEEDLE MACHINES)
Insert a new set of needles (type and
size required). Turn handwheel to bring
needle bar
(A, Fig. 3) down to ensure that
needles center in needle holes of throat
plate
as shown in Fig. 3. Adjustment can
be made by loosening screw (B) slightly,
allowing needle bar to be turned as requir-
ed. Tighten
clamp screw.
SYNCHRONIZING LOOPER AND NEEDLE MOTIONS
Insert looper into the looper rocker,
pushing
it all the way down and tighten
screw against flat on shank of looper. Turn
handwheel in operating direction until
the point of the looper
(A, Fig. 4) moving
to the left, is even with the left side of
the
right needle (B). Note the height of
the
eye of the needle with respect to the
looper point
(See Fig. 5). Turn the hand-
wheel in the reverse direction until the
point
of looper again moving to the left,
is even with the left side of right needle
(See Fig. 5). If the height of the eye of
the needle with respect to the looper point
are the
same, looper and needle motions are
synchronized - a variation of
.005 inch
(.127mm) is allowable.

From the library of: Superior Sewing Machine & Supply LLC
SYNCHRONIZING LOOPER AND NEEDLE MOTIONS (Continued)
If the distance from the eye of the needle to the
point of
the looper is greater when the handwheel
is turned in the operating direction, the looper
drive
lever rocker shaft will have to be moved
slightly towards the rear. Moving the shaft to-
wards the front acts the reverse.
NOTE: The 1/64 inch (.4mm) dimension shown in
Fig. 5
is for final setting of needle
bar height.
Adjust looper drive rocker lever
shaft as follows:
Loosen screw (C, Fig. 4) in looper
drive
lever (D). A rod of .146-40 thd. or
Union Special Screw No. 22870 A can be
threaded into the looper drive lever rock-
er shaft through the center of thrust adj-
usting screw (E). Tap or pull slightly as
required
to position shaft for proper syn-
chronization. Tighten
screw (C) securely
and remove rod or screw used to position
shaft. Loosen lock nut (F) and TORQUE
thrust adjusting screw (E) to 6 in. lbs.
(7cm/kg);re-tighten lock nut (F) securely.
With looper at extreme right end of
its travel, check location of the center-
line of right looper connecting rod bear-
ing using
gauge No. 21227 ex for all
Classes except 56700 which uses gauge No.
21227 CX-56 for Style 56700 J-56 and No.
21227 CX-64 for Style 56700 J-64. Remove nut from
looper lever stud (A, Fig. 6) and place hole in
gauge (B) over threaded stud. The left end of
gauge should locate against the RIGHT side of
looper rocker
cone (C). If adjustment is neces-
sary, loosen clamp screw (D), reposition looper
drive
lever (E) as required and retighten screw
(D). If gauge is not available, setting can be
checked with a scale. "X" dimension is from
centerline of stud (A) to centerline of cone (C)
which should be 4 1/16 inch (103.2mm) for all
Classes except 56700. Style 56700 J-56 should
be a 3 5/8 inch (92. 1nm) and Style 56700 J-64
should
be 3 9/16 inch (90.6mm) with looper at
extreme right end of travel.
LOOPER SETTINGS
Insert a new needle, type and size as spec-
For Proper SYNCHRONIZATION of
Looper & Needle
these two Dimensions will be the same
J
1/84' 1Hl --==-
(.4mm)
-r
in
OPERATING
Direction
Fig. 5
Fig. 6
Fig. 7
Looper in
FRONT of
Needle
In
REVERSE
Direction
ified. If the looper ga _ uge is 5/32 inch (4.0nm), for example, set the looper
(A, Fig. 7) so the distance from the center of the needle (B) to the point of the
looper is 5/32 inch
(4.0mm), when the looper is at its farthest position to the right.
13

From the library of: Superior Sewing Machine & Supply LLC
LOOPER SEITINGS (Continued)
Looper gauge No. 21225-5/32 (C) can be used advantageously in making this adjustment.
On two needle machines set the back looper to the right needle and on three needle
machines set the middle looper to the middle needle, when setting the looper gauge.
Refer to chart for needle
Type, looper gauge setting and looper gauge number. If adj-
ment is required, loosen nut (D) (it has a left hand thread) and nut (E) on connect-
ing
rod (F), turn the connecting rod forward or backward to obtain the 5/32 inch
(4.0mm) dimension. Retighten both nuts, first nut (E), then nut (D). Make sure the
left ball joint is in vertical position and does not bind after adjustment.
Machine
Styles
56200 H
56200 K,R
56200 L
56200 S
56200 W, 56300 W,AL
56300 E,F,G,N,R,
U,X,AH
56300 H
56300 M
56400 D
56400 P,R,S,T,W,X
56500 A,B,C,U
56500 J,R
56700 J
56900 H
56900 J
56900 P
56900 R
Needle Type
101 GS
106 GLS
126 GS
108 GHS
128 GAS
128 GBS
143 GS
126 GS
106 GHS
106 GHS
130 GS
128 GS
108 GKS
128 GAS
147 GKS
147 GKS
147 GS
Looper Gauge
Setting
1/8
Inch (3.2mm)
1/8 Inch (3.2mm)
5/32 Inch (4.0mm)
1/8 Inch (3.2mm)
5/32 Inch (4.0mm)
5/32 Inch (4.0mm)
5/32 Inch (4.0mm)
5/32 Inch (4.0mm)
1/8 Inch (3.2mm)
1/8 Inch (3.2mm)
5/32 Inch (4.0mm)
5/32 Inch (4.0mm)
1/8 Inch (3.2mm)
5/32 Inch (4.0ITITl)
7/32 Inch {5.6mm)
5/32 Inch (4.0ITITl)
7/32 Inch (5.6mm)
Looper Gauge
Number
21225-1/8
21225-1/8
21225-5/32
21225-1/8
21225-5/32
21225-5/32
21225-5/32
21225-5/32
21225-1/8
21225-1/8
21225-5/32
21225-5/32
21225-1/8
21225-5/32
21225-7/32
21225-5/32
21225-7/32
The looper is set correctly if, as it moves to the left behind the needle, its
point (A, Fig. 8) clears the rear of needle (B) by .002 inch (.05lmm).
Fig. 8
If adjustment is necessary, loosen lock screw (G, Fig. 7)
and turn stop screw (H) as required. Turning stop screw clock-
wise
sets the looper to the rear and turning it counterclock-
wise acts the reverse.
Holding looper to the front while making
this adjustment may prove helpful. Tighten lock screw when
setting is obtained and recheck the adjustment.
On Style 56200 W, looper needle guard (attached to looper)
should
be set to barely contact the front of needle without de-
flecting as looper moves to left. ·
On the two and three needle machines, insert the other
needles
and loopers. The same looper -needle relationship
should
exist without any adjustment, other than applying pres-
sure
on the looper at front or back of blade, while clamping
looper in looper rocker, so as to get the proper in-line-of-
feed setting.
14

From the library of: Superior Sewing Machine & Supply LLC
NEEDLE BAR HEIGHT
The height of the needle is correct when
the top of its eye is 1/64 inch ( .4mm) below
the underside of the looper, with the looper
point
flush with the left side of the needle
as shown in Fig. 5. On Styles 56500 A, Band
C the top of the needle eyes should
be even
with the underside of the looper when the
looper
point is flush with the left side of
the needle.
If adjustment is necessary, Fig. 9
loosen screw (8, Fig. 3) and move needle bar
(A) up or down as required and retighten screw. On two and three needle machines,
care should
be taken not to disturb alignment of needle bar when moving the needle
bar
either up or down. The descending needles must be deflected alike on the back of
the 1 oope rs.
FEED DOG SETTINGS
Feed dog (A, Fig. 9) should be centered in throat
plate (B) with equal clearance on all sides and ends with
feed
travel set to desired stitch length. At highest point
of
travel, tips of feed dog teeth should extend the depth
of a tooth or approximate.ly 3/64 inch
(1.2mm) above throat
plate and parallel to same. Screw (C) should be set to
support feed
dog after screw (D) has been loosened which
secures feed dog in position.
On Styles 56300 N,U,X,AH the tips of the teeth must
extend 1/32 inch (.8mm) above the throat plate and the
"Grip
Feed" presser foot feed dog must line with the lower
feed dog left to right, and in-line-of-feed the last teeth
of the top
and bottom feeds should match tooth point to
point. Fig. 10
Parallel adjustment can be made by loosening nut (A, Fig. 10) and turn screw (B)
clockwise to lower front of feed dog, counterclockwise acts the reverse. When proper-
ly
set, retighten nut (A).
Right to left adjustment can be
made by loosening screws (A, Fig. 11)
and slightly move feed rocker (B) on
feed rocker shaft (C) as required,
then
retighten screws. Check to en-
sure
that feed rocker arm (D) does
not bind after adjustment.
Forward or rearward centering
of feed
dog can be accomplished by
loosening nut (E, Fig. 11), move
feed rocker (B) as required and re-
tighten nut.
Fig.
11
15

From the library of: Superior Sewing Machine & Supply LLC
CHANGING STITCH LENGTH
Set the stitch to required length. This is accomplished by loosening locknut
(F, Fig.
11) 1/2 turn (it has a left hand thread) on the end of the stitch regulating
stud
and turning stitch adjusting screw (G) located under the left end of the cloth
plate, in the head of main shaft (H), which is marked with
11
L
11
and
11
S
11
• Turning the
screw clockwise shortens the stitch (moves stitch regulating stud toward the
11
S
11
) and
turning it in a counterclockwise direction lengthens the stitch (moves stitch regula-
ting stud
toward the
11
L
11
). Retighten locknut securely. To prevent destructive dam-
age to the feed drive bearing, key screw (J) must engage the
11
U
11
shaped key slot in
ferrule
(K).
NOTE: Any change in stitch length will necessitate a corresponding change in the
rear needle
guard setting.
Machines having needle bearings in the feed rocker at locations (L, Fig. 11)
may require repacking after years of service. Bearings should be throughly cleaned
and repacked with Union Special Corporation grease No. 28604 P.
REAR NEEDLE GUARD
At extreme forward end of travel, rear needle guard (C, Fig. 10) must be set
horizontally not to contact rear of needle (D) with a maximum clearance of .005 inch
(.12711111). Guard should be set as low as possible, yet have its vertical face approach
approximately 3/64 inch
(1.2mm) of needle point until point of looper (E), moving to
the
left, is even with the needle. To move needle guard forward or backward, loosen
screw (F), move needle guard as required, and retighten screw. To raise or lower
needle guard, loosen screw (F), and turn screw (G) clockwise to lower needle guard
or counterclockwise to raise it. Retighten screw (F) after guard is properly set.
NOTE: Any change in stitch length will require a change in rear needle guard setting.
THREADING (FOR ALL STYLES EXCEPT 56300 E,F,G,N,R,U,X,AH and AL)
Draw the looper and needle threads into the machine and start operating on a
piece of fabric. Refer to threading
diagram (Fig. 2) for the threading of these
machines.
THREAD TENSIONS
The tension on the needle thread should be only sufficient to produce uniform
stitches on the under surface of the fabric.
The looper thread tension is applied at the cast-off support tension disc assem-
bly, and the adjusting nut should be set so that the tension on the looper thread is
just sufficient to steady the thread.
THREAD TENSION RELEASE
The thread tension release is set correctly when it begins to function as the
presser foot
is raised to within 1/8 inch (3.2rrm) of the end of its travel and is
entirely released when the presser foot has reached its highest position.
16

From the library of: Superior Sewing Machine & Supply LLC
THREAD TENSION RELEASE (Continued)
If adjustment is required, loosen tension release lever
screw (A, Fig. 12), located at the back of machine and move
tension disc separator as required. Retighten screw. After
adjustment there should
be no binding at any point.
PRESSER BAR HEIGHT
Height of presser bar (A, Fig. 13) is correct when pre-
sser foot can be removed by depressing foot lifter lever
(B, Fig. 12). There should be approximately 1/16 inch (1.6mm)
clearance between lower surface of presser bar connection and
guide (B, Fig. 13) and bottom surface of head opeining in bed
casting when foot lifter lever is released and presser foot
lying
flat on throat plate with feed dog below throat plate. Fig. 12
'
A
Adjustment can be made by turning handwheel to position needle bar at bottom of
stroke. Loosen screw (C, Fig. 13) and while holding press-
er foot down on throat plate, position presser bar connect-
ion
and guide as required to attain specified clearance
and retighten screw.
PRESSER FOOT PRESSURE
Regulate presser spring regulating screw (A, Fig. 14)
so that it exerts only enough pressure on the presser foot
to feed
the work uniformly when a slight tension is placed
on the fabric. Turning it clockwise increases the pres-
sure, counterclockwise acts the reverse.
NEEDLE THREAD TAKE-UP WIRE AND FRAME EYELET
(FOR ALL STYLES EXCEPT 56300 E,F,G,N,R,U,X,AH and AL)
Set needle thread take-up wire (B, Fig. 14), so that
its upper surface is even with the top of the holes in
needle bar thread eyelet
(C) when needle bar has completed
its downward stroke. Lower this setting for a smaller
needle thread loop, or raise
it for a larger loop. Set
needle thread
frame eyelet (D) so that the eyelet hole is
3/4 inch (19.0mm) above the attaching screw
on all Styles except on Styles 56500 J,
56900 H, J, P and R the eyelet is to be set
5/8 inch (15.9mm) above the attaching screw
and on Style 56200 Hthe eyelet is to be set
l inch (25.4mm) above the attaching screw.
NOTE: For the above setting on Styles
56300 E,F,G,N,R,U,X,AH and AL,
see the following paragraphs.
THREADING (FOR STYLES
56300 E,F,G,N,R,U,X,AH and AL)
Refer to threading diagram (Fig. 2A)
for the manner in which these machines are
threaded.
17
Fig. 13
Fig. 14

From the library of: Superior Sewing Machine & Supply LLC
NEEDLE THREAD TAKE-UP WIRE AND FRAME EYELET
FOR (STYLES 56300 E,F,G,N,R,U,X,AH and AL)
Fig. 15
These machine styles
are equipped with addition-
al thread handling
and con-
___:.i.,j~---- - ...__, trol parts, so the adjust-
ing sequence should
be made
Fig. 14A in the following manner:
With needle bar at the top of its stroke, set needle thread take-up wire (A,
Fig. 14A) so its lower extended surface is 1 7/16 inch (36.5mm) above centerline of
needle lever thread eyelet hole
and 3/4 inch (19.0mm) across the centerlines of its
vertical surfaces (See Fig. 14A).
Fig. 16
Set looper thread guide eyelet (A, Fig. 15) so its
left outer surface is 3/4 inch (19.0rrm) from the left side
of looper thread take-up (B),
(See Fig. 15).
Adjust looper thread tension with nut
(B, Fig. 14A)
to a minimum required for controlling the looper thread
(light). Set the thread index eyelet (C) at
11
3
11
on the
adjusting plate
(D). Changing the needle thread tension
only, with nut (E), balance the
stitch so that when 6
inches
(152.4mm) of sewn seam are raveled back, the needle
thread
is approximately as long as the looper thread. Al
inch (25.4mm) difference in lengths is permissible. NOTE:
Use a sample of the material to be sewn. Maintaining this
needle thread tension, move thread index eyelet (C) up to
toward
11
L
11
to obtain a looser seam (longer needle loops)
and toward
11
T
11
to obtain a tighter seam.
FEEDING PRESSER FOOT
Remove the presser spring regulator and presser
spring. Adjust
long stop screw (A, Fig. 16) in presser
bar guide
(B) against bed casting as required to ensure a
clearance
between the guide and top of presser bar bushing
(C), yet
so that guide is pulled up quickly by lifter lever
link
(D) when foot treadle is activated. Tighten lock nut
(E) on stop screw.
18

From the library of: Superior Sewing Machine & Supply LLC
FEEDING PRESSER FOOT (Continued)
As a preliminary setting, adjust spring regulator nut (A, Fig. 17) on feeding
presser foot so the distance from the top of spring (B) to the yoke (C) is 5/8 inch
(15.9mm),
(See Fig. 17). Assemble the feeding presser
foot
to presser bar. With presser foot resting on
throat plate and feed dog down, press down on spring
regulator nut {A, Fig. 17) until the marks on presser
foot bottom line
up with the centerline of needle,
while keeping the needle in the center of needle
slot, tighten set screw (D) securing presser bar
guide
to the presser bar, making sure stop screw in
presser bar guide is resting on the bed casting.
Replace presser spring
and presser spring reg-
ulator. Turn presser bar spring regulator screw
down until the thread portion is level with the head
casting.
NOTE: Any change in the alignment of needle in re-
lationship to the marks on the presser foot bottom
probably means that the stop screw of the presser bar
guide
was not seated against bed c3sting before lock-
ing
set screw.
When the presser foot is lifted off the bare Fig. 17
throat plate, the foot should move back only slightly,
less than 1/64 inch (.4mm). The stop screw {E, -Fig. 17) on the yoke, which is set at
the factory, can be readjusted if necessary, should this dimension become changed.
CHECK
Presser foot at back of needle slot should cover most of throat plate land when
resting on the bare throat plate.
When the presser foot bottom is raised by material so that the feeding foot
spring bottoms, the
back of the needle slot should clear the needle. The main press-
er bar should not lift before the feeding foot spring bottoms.
The purpose of the feeding foot is to make the top and bottom ply of cloth feed
the
same amount without pulling on the bottom ply. The 5/8 inch {15.9mm) setting on
the feeding foot spring usually gives a good matching of piles and a strong feeding
pull. Reducing this pressure will tend to feed the top ply more. Increasing this
pressure will tend to feed the bottom ply more.
TORQUE REQUIREMENTS
Torque specifications given in this catalog are measured in inch-pounds or
centimeter/kilograms.
All straps and eccentrics must be tightened to 19-21 in. lbs.
(22-24cm/kg) unless otherwise noted. All nuts, bolts, screws, etc . , without torque
specifications must be secured as tightly as possible, unless otherwise noted.
Special torque specifications for connecting rods,
links, screws, etc., are shown on
parts illustrations.
19

From the library of: Superior Sewing Machine & Supply LLC
•
Fig. 18
Fig. 19
.045" (1.14mm)
Fig. 20
SPECIAL INSTRUCTIONS
NEEDLE LEVER
When adjusting needle lever or replac-
ing related parts, follow instructions in
sequence
as listed:
1. Install
11
0
11
rings (A, Fig. 18) onto
needle lever stud
(B) and thrust collar
(C).
2. With needle lever (D) in machine and
positioned properly; insert stud (B)
through hole in needle lever until its
shoulder contacts the needle lever and
the word
11
UP
11
on stud is in the upright
position.
While making sure no binding
exists in the needle bar link, secure
stud
(B) with the front set screw in
top of
machine bed.
3. Install temper load ring (E) and com-
pression cups (F) onto stud (B), then
push ring and cups through opening in
machine bed.
4. Install thrust collar (C) onto stud (B)
being careful not to damage
11
0
11
ring.
Compress components together by tighten-
ing
screw (G) until washer (H) bottoms
against stud {B). Secure stud (B) in
position using the rear
set screw in top
of
bed.
5. To check temper load ring for proper com-
pression, remove screw (G) from stud (B)
and loosen rear set screw in top of bed.
Thrust collar (C) should spring out .003
- .007 inch (.08 - .18mm). Compress load
ring in reverse order, then tighten
rear
set screw.
6. With indented
11
UP
11
on stud (B) in upright
position,
install bearing oiler (J) so
its hook sets in oil supply hole (K) of
stud.
When hook and stud are secured in
their proper positions, the proper amount
of oil will be channeled to stud for lub-
ricating needle lever (D).
ALIGNING MAINSHAFT TO CRANKSHAFT
As viewed looking down from rear of machine, spot screws (A, Fig. 19) in the
couplings
must align with the spots in the looper drive crank (B) and set screws (C)
must align with the flats on crankshaft (D) and mainshaft (E). Mainshaft must be
positioned laterally with .045 inch (1.14mm) clearance between the right side of its
head and the bed casting as shown in Fig. 20.
20