UnionSpecial 50000 Series Setup guide

CATALOG NO.
T129 VF
Second Edition
S TY LES
563 00VF
56 300VG
®
Finest Quality
Adjusting instructions and
illustrated parts list
l
u
Series 50000 - M achines
with "Air-Kiipp ®" Chain Cutte r
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CATALOG NO. Tl29VF
(SUPPLEMENT TO CATALOG NO. 129M)
ADJUSTING INSTRUCTIONS AND
ILLUSTRATED PARTS LIST FOR
SERIES 50000
MACHINES WITH AIR-KLIPP ®
VACUUM TYPE CHAIN CUTTER
STYLES
56300 VF 56300 VG
Second Edition
©1977'
1982
By
Union Special Corporation
Rights Reserved in All Countries
Printed in U.S.A.
June, 1982
2
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IDENTIFICATION OF MACHINES
Each UNION SPECIAL machine is identified by a Style number on a name plate on
the machine. 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
56300 VF". Special Style numbers contain the letter "Z". \~hen only minor
changes are made in a standard machine, a "Z" is suffixed to the standard Style
number. Example: "Style 56300 VFZ".
Styles of machines similar in construction are grouped under a class number
which differs from the style number, in that it contains no letters. Example:
"Class 56300".
APPLICATION OF CATALOG
This catalog is a supplement to Catalog No. 129 M, Fifth Edition, and should be
used in conjunction therewith. Only those parts which are used on Styles 56300 VF
and 56300 VG, but not used on Styles 56300 F or 56300 Gare illustrated and listed
at the back of this book. For clarity, certain 56300 F and 56300 G parts are shown
in phantom to assist in locating the 56300 VF and 56300 VG parts.Opposite the illus-
tration pages, parts are identified by a reference number, part number, description
and amount required. Any part that is a component of another part is indicated by
indenting its description under the description of the assembly or base part. Always
use the part number in the second column, never use the reference number in the
first column when ordering repair parts.
This catalog applies specifically to the Standard Styles of machines as listed
herein. It can also be applied with discretion to some Special Styles of 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 toward the operator.
STYLES OF MACHINES IN CLASS 56300
Advanced High Speed Single Needle Flat Bed Machines, Medium Throw, Needle Bear-
ing
Needle Bar Drive, Light Weight Presser Bar and Needle Bar Driving Mechanism,
Single Reservoir Enclosed Positive Automatic Lubricating System, Filtered Oil Return
Pumps for Head and Base, Lateral Looper Travel, Large Handwheel and Improved Belt
Guard, Indexed
Thread Ratio Control Parts, "Air-Klipp" Vacuum Chain Cutter, prepared
for use with Knee Press for Presser Foot Lifter, Equipped with Disc Thread Tensions,
Maximum Work Space to Right of Needle Bar 8 1/4 Inches (209.6 mm).
56300 VF Equipped with thumbscrew adjustable frame needle thread eyelet and
feeding presser foot, for seaming operations such as attaching pocket facings, run-
stitching pocket and cuff flaps and siMilar operations on koratron or permanent press
materials.
Seam Spec. 401-SSa-1. Type 128 GBS needle. Maximum recommended speed
6500 R.P.M.
56300 VG Equipped with thumbscrew adjustable needle thread frame eyelet, for
seaming trousers, coats and for similar operations on precured perma-oress material.
Seam Spec. 401-SSa-1. Type 128 GBS needle. Maximum recommended speed 6500 R.P.M.
3
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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 the largest diameter of blade, measured mi dway be tween
shank and eye. Collectively, type and size numb er represent the complete symbol,
which is given on the label of all needles packaged and sold by Union Special.
Standard
recommended needle for Styles 56300 VF and 56300 VG is Type 128 GBS. It
has a round shank, round point, short, double groove, struck groove, ball eye, spot-
ted, ball point, chromium plated and is available in sizes 080/032,090/036 , 100/040,
110/044, 125/049, 140/054,
060.
To have needle orders promptly and accurately filled, an empty package, a sample
needle, or the type
and size number should be fo rwarded. Use description on label. A
complete order
would read:
11
1000 Needles, Type 128 GBS, Size 080/032
11
•
Selection of the proper needle size should be determined by siz e of thread used.
Thread should pass freely through needle eye in order to produce a good s titch for-
mation.
USE GENUINE REPAIR PARTS
Success in the operation of these machines can be secured only with ge nuine
UNION SPECIAL repair parts as furnished by the Union Special Corporation, its sub-
sidiaries and authorized distributors. They are designed according to the most ap-
proved
scientific principles, and are made with utmost precision. Maximum e fficiency
and durability are assured.
IDENTIFYING PARTS
Where the construction permits, each part is stamped with its part number. On
some of the smaller parts and on those where construction does not permit, an ident-
ification letter is stamped in to distinguish the part from similar ones.
Part
numbers represent the same part, regardless of catalog in which they
appear.
IMPORTANT! ON ALL ORDERS, PLEASE INCLUDE PART NAME AND STYLE OF MACHINE FOR
WHICH PART IS ORDERED.
TERMS
Prices are strictly net cash and subject to change without notice. All shipments
are forwarded
f.o.b. shipping point. Parcel Post shipments are insured unless other-
wise directed. A charge is made to cover postage and insurance.
4
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FILL
MAIN
RESERVOIR
HERE
CAUTION!
FOR CORRECT
OIL LEVEL
NEEDLE OF GAUGE
SHOULD BE IN
OPERATE POSITION
FILL ALL OIL RESERVOIRS
BEFORE STARTING.
MACHINE HAS BEEN DRAINED
BEFORE SHIPPING.
Fig . 1
THREADING AND OILING DIAGRAM FOR STYLES 56300 VF and VG.
The oil has been drained from the machin e before shipping and the reservoir must
be filled before starting to operate. Maintain oil level in "OPERATE" position and
add oil when needle is to the black line located to the left of the "OPERATE" zone
marked "LOW". The machine is automatically lubricated and no oiling other than keep-
ing the
main reservoir filled is necessary. For further lubricating instructions
refer to paragraph on "LUBRICATION" and "RECOMMENDED OIL".
Thread machine Styles 56300 VF and VG in accordance with the above threading
diagram.
5
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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. 2). While filling machine with oil, check
gauge (B). When proper oil level is reached, gauge need-
le will reaister on black line marked
11
FULL
11
• Oil must
be added when gauge needle registers on black line mark-
ed
11
LOH'
1•
Although the machine can be operated safely
when gauge needle registers in the
11
0PERATE" zone, it is
recommended to always check oil level before operating,
to
be sure machine is filled with oil to the
11
FULL
11
mark. CAUTION: DO NOT over fill machine.
To drain oil, remove plug screw (C), or lower 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 directly
oil needle bar link and needle bar. Replace 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
distribution.
ADJUSTING INSTRUCTIONS
OIL GAUGE CALIBRATION
To recalibrate oil gauge, follow instructions in sequence as listed:
-Place machine upright on a level surface.
Fig. 2
-
Remove plug screw (C, Fig. 2) 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
•
6
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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 un-
til the point of the looper {A, Fig. 3)
moving to the left, is even with the left
side of needle (B). Note the height of
the
eye of the needle with respect to the
looper point
(See Fig. 4). 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 needle (See
Fig. 4). 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. If the dis-
Fig. 3 tance 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 towards the front
acts the reverse.
For Proper SYN CHRONIZATION of
Looper & Needle
these tw o Dimensions will be the s am e
J
~ J v~
1164"
1/64"
(.4mm) (.4mm) --
--
-r
-~~~ - l
Looper in
FRONT of
Ne e dl e N
ee dl e
in in
OPERATING REVERSE
Direction
Direction
Fig. 4
Fig. 5
NOTE: The 1/64 inch (.4rrm) dimension shown in Fig. 4
is for final setting of needle bar height.
Adjust looper drive rocker lever
shaft as follows:
Loosen screw {C, Fig. 3) 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 rocker
shaft through the center of thrust ad-
justing screw (E). Tap or pull slightly as required
to position
shaft for proper synchronization. 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-tight-
en lock nut (F) securely.
7
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 CX. Remove nut
from looper lever stud {A, Fig. 5) 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 necessary,
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. Dim-
ension from centerline of stud (A) to
centerline of
cone (C) which should bt
4 1/16 inch (103.3mm).
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SETTING THE LOOPER
Insert a new needle, type and size as speci-
fied. Looper gauge is 5/32 inch (3.97mm) for
Styles
56300 VF and 56300 VG. Set the looper
(A, Fig. 6) so the distance from the center of
the needle
(B) to the point of the looper (A) is
5/32 inch (3.97mm), when the looper is at its
farthest position to the right. Looper gauge
No. 21225-5/32 (C, Fig. 5) can be used advan-
tageously in
making this adjustment. If adjust-
ment is required, loosen nut (D) (it has a left
hand thread) and nut (E) on connecting rod (F),
turn the connecting
rod forward or backward to
obtain the 5/32 inch
(3.97mm) dimension. Re-
tighten both nuts, first nut (E), then nut (D).
Make sure the left ball joint is in vertical
position and does not bind after adjustment.
Fig. 7
The looper is set correctly in
line-of-feed, if, as it moves to the
left, behind the needle, its point
(A, Fig. 7) brushes, but does not pick
at the rear of needle (B).
If adjustment is necessary,loosen
lock screw
(G, Fig. 6) and turn stop
screw
(H) as required. Turning stop
screw clockwise
sets the looper to the
rear and turning it counterclockwise
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.
SETTING HEIGHT OF NE E DLE BAR
The height of the needle (C, Fig. 8) is correct wh en
the top of
its eye is l/64 inch (.4mm) below the underside
of the looper, with the looper point flush with the left
side of the needle (See Fig. 4).If adjustment is necessary,
loosen screw
(B, Fig. 8) and move needle bar (A) up or down
as required and ret ighten screw.
A
Fig. 6
Fig. 8
Th e needle mu st have equal clearance on the right and left sides of the needle
slot in throat plat e. The descending needle must be deflected on the back of the
looper.
8
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SETTING THE FEED DOG
Set the feed dog (A, Fig. 9) in the throat plate (B) so there is equal clearance
on all sides. See that the tips of the teeth extend the depth of a tooth or approx-
imately 3/64 inch (1.19
mm) above the throat plate
and are parallel with the throat plate at high
point of travel. Adjust the support screw (C),
under the feed dog, to maintain this setting.
Screw (D) is used to hold feed dog in position.
Fig. 9 If feed dog teeth are not parallel with the
throat plate, loosen nut (A, Fig. 10) and turn
screw
(B) clockwise to lower the front teeth, or counterclockwise to raise the front
teeth. Retighten nut when feed dog is set properly.
Fig.
10
Should it be necessary to move the feed dog to the
left or right, loosen screws (A, Fig. 11) which hold the
feed rocker
(B) onto the feed rocker shaft (C), and move
feed rocker to desired position and retighten screws.
Make sure the feed rocker arm (D) does not bind after
making this adjustment.
When handwheel is turned in operating direction the
feed
dog should have equal clearance on both ends of the
throat plate slots with feed travel set to desired
stitch 1ength.
Should it be necessary to move the feed dog forward
or backward, loosen nut (E, Fig.
11) which clamps the
feed rocker
arm to the feed rocker and move the feed
rocker forward or
backward as needed and retighten nut.
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
Fig.
11
9
stud and turning the stitch adjust-
ing 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 counter-
clockwise
direction lengthens the
stitch (moves stitch regulating stud
toward the
11
L
11
). Retighten locknut
securely.
To prevent destructive
damage 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
rear needle guard setting.
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CHANGING STITCH LENGTH (Continued)
Machines having needle bearings in the feed rocker at .locations
(L. Fig. 11)
may require repacking after years of service. Bearings
should
be tnroughly cleaned and repacked with Union Special Corpor-
ation grease No. 28604 P.
SETTING REAR NEEDLE GUARD
Set rear needle guard (C, Fig. 10) horizontally so that it does
not quite contact the rear of needle (D) when at its most forward
point
of travel. A clearance of .005 inch (.127mm) is permissible.
It should be set as low as possible, yet have its vertical face ap-
proach within about 3/64 inch
(1.19mm) of the needle, until the
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.
THREAD TENSIONS
Tension on the needle thread should be only sufficient
to produce uniform stitches on the under surface of the
fabric.
Pull needle thread through the eyelets and set the
needle thread tension
at 3 ounces (85.05 gr).
Looper thread tension is applied at the cast-off sup-
port tension disc assembly,
and the adjusting nut should
be set so that the tension on looper thread is just suf-
ficient to steady the thread.
THREAD TENSION RELEASE
Thread tension release is set correctly when it be-
gins to function
as the presser foot is raised to within
1/8 inch
(3.17mm) of the end of its travel and is entire-
ly released when the presser foot has reached its highest
position.
If adjustment is needed, loosen tension release lever
Fig.
12
Fig. 13
screw (A, Fig. 12), located at the back of the machine and move tension disc separ-
ator as required. Retighten screw. After adjustment there should be no binding at
any point.
PRESSER BAR HEIGHT (FOR 56300 VG)
Height of presser bar (D, Fig. 13) is set correctly if it is possible to remove
the presser foot when foot lifter lever (B, Fig. 12) is fully depressed.
10
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PRESSER BAR HEIGHT (FOR 56300 VG Continued)
Also there should be approximately 1/16 inch (1.59mm)clearance between lower surface
of the presser bar connection
and guide (E, Fig. 13) and the bottom surface of the
head opening in the bed when foot lifter lever is released and the presser foot
resting on the throat plate, with feed dog down below the throat plate.
B
~
c
Fig. 14
If adjustment is needed,turn handwheel
in operating direction until needle bar is
in the low position. Loosen screw (F, Fig.
13).
While holding presser foot down on the
throat plate surface, pry up presser bar
connection guide
VJith a screwdriver to ob-
tain the 1/16 inch (1.59mm) setting and
tighten screw (F). Check setting by turning
handwheel so that needle bar is in its high
position
and see if presser foot can be re-
moved as mentioned in previous paragraph.
PRESSER FOOT PRESSURE (FOR 56300 VG)
Adjust 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. This is the knurled
screw, located
directly behind the needle
clockwise increases the pressure, bar in the
head of the machine. Turning it
counterclockwise acts the reverse.
THREADING
Refer to threading diagram (Fig. 1) for the manner in which these machines are
threaded.
SETTING NEEDLE THREAD TAKE-UP WIRE AND FRAME EYELET
These machine styles are equipped with thread handling and control parts, so
the adjusting sequence should be made in the following manner:
With needle bar at the top of its stroke, set needle thread take-up wire
(B, Fig. 14) so its lower extended surface is 1 7/16 inch (36.51mm) above centerline
of needle lever thread eyelet hole and 3/4 inch (19.05mm) a-
Fig.
15
cross the centerlines of its vertical surfaces(See Fig. 14).
Set looper thread guide
eyelet (A, Fig. 15) so its left
outer surface is 3/4 inch (19.05mm) from the left side of
looper thread take-up (B),
(See Fig. 15).
Adjust looper thread tension to a
minimum required for
controlling the looper thread (light). Set thread index eye-
let (C, Fig. 14) at
11
3
11
on the adjusting plate (D). Changing
the needle thread tension only, balance the stitch so that
when 6
11
of sewn seam are raveled back, the needle thread is
approximately as long as the looper thread. A 1
11
difference
in lengths
is permissible.
11
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SETTING NEEDLE THREAD TAKE-UP WIRE AND FRAME EYELET (Continued)
NOTE: Use a sample of material to be sewn. Maintaining this needle thread tension,
move thread index eyelet (C) up 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 (56300 VF ONLY)
Remove presser spring regulator and presser spring.
Adjust
long stop screw (A, Fig. 16) in presser bar guide
(B) against the bed casting as required to ensure a clear-
ance between the guide and top of presser bar bushing (C),
yet so the guide is pulled up quickly by lifter lever link
{D) when foot treadle is activated. Tighten lock nut (E)
on stop screw.
As a preliminary setting, adjust spring regulator nut
{A, Fig. 17) on the feeding presser foot so the distance
from the top of the spring {B) to the yoke (C) is 5/8 inch
(15.88mm), (See Fig. 17). Assemble 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 the 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
that the stop screw in presser bar guide is resting on the
bed casting.
Replace
presser spring and presser spring regulator.
Turn presser bar spring regulator screw down until the
threaded portion
is level with the head casting.
Note: Any change ir the alignment of needle in relat- Fig. 16
ionship to the marks on the presser foot bottom probably
means that the stop screw of the presser bar guide was not seated against bed cast-
ing before locking set screw.
When the presser foot is lifted off the bare
throat plate, the foot should move back only slightly,
less than 1/64 inch (.40mm). 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 mater-
ial so that the feeding foot spring bottoms, the back
of the needle slot should clear the needle. The main
presser bar should not lift before the feeding foot
spring bottoms.
12
Fig. 17
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CHECK (Continued)
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 (15.88mm) setting
on the feeding foot spring usually gives a good matching of piles and a strong feed-
ing
pull. Reducing this pressure will tend to feed the top ply more. Increasing
this pressure will tend to feed the bottom ply more.
ADJUSTING LOWER KNIFE ON "AIR-KLIPP" CHAIN CUTTER
Fig. 18
Cutting edge of the lower knife should over-
lap the thread opening
by 1/64 inch (.40mm) to
cut properly.
The back edge of the knife should
not
enter the thread opening forming a triangle
where the thread chain could get caught. The
lower life is driven by the feed bar (A, Fig.18).
To adjust lower knife; (1) remove screws
(B, Fiy. 18).
CAUTION! When removing screws (B) the lower
knife
is being held against the bottom of the up-
per knife (C) by spring (A, Fig. 19) and will
come out of place when upper knife is removed.
(2) Loosen screw (B, Fig. 19) and move lower knife holder (C, Fig. 19) forwards or
backwards for correct knife travel, with the knife at its farthest travel to the
right.
Fig. 19
Fig. 20
SPECIAL INSTRUCTIONS
NEEDLE LEVER
When adjusting needle lever or replacing related
parts, follow instructions in sequence as listed:
1. Install
11
0
11
rings (A, Fig. 20) onto needle lever stud
(B) and thrust collar (C).
2. l4ith needle lever (D) in machine and positioned proper-
ly;
insert stud (B) through hole in needle lever until
its shoulder contacts the needle lever and the word
13
11
UP" 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 mach-
ine bed.
3. Insta 11 temper 1 oad ring (E) and
compression cups (F) onto stud (B),
then
push ring and cups through
opening in
machine bed.
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NEEDLE LEVER (Continued)
4. Install thrust collar (C) onto stud (B) being careful not to damage "0" ring.
Compress components together by tightening 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
compression,
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 "UP" 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 lubri-
cating needle lever (D).
ALIGNING MAINSHAFT TO CRANKSHAFT
Fig. 21
As viewed lookinq down from rear of machine, spot screws (A, Fig. 21) in the
couplings
must align w ith 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. 22.
Looper drive crank (B, Fig. 21)
must be positioned laterally with 1/32
inch
(.8mm) clearance between it and
mainshaft (E) as shown in Fig. 21. Once
these settings are made, it is very im-
portant that the couplings are tightened
in the following sequence for best per-
formance.
Tighten spot screws
(A) temporari-
ly, to the looper drive crank. Tighten
set screws (C) temporarily, to the
crankshaft
and mainshaft. Torque screws
(F) to
19-21 in. lbs. (22-24cm/kg).
Loosen spot screws (A) and set screws
(C). Re-torque screws (F) to 19-21 in.
lbs. (22-24cm/kg), then, torque screws
(A and C to 19-21 in. lbs. (22-24cm/kg).
Fig.
22
14
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ALIGNING MAINSHAFT TO CRANKSHAFT (Continued)
The oil drip plate (A, Fiq. 23) located in the oil reservoir should be position-
ed with its tip in the recessed cut out in the bed casting. as far to the left as
possible without touching. It has elongated mounting holes and can be adjusted by
loosening (2) screws (B) in top of the oil reservoir back cover to position as re-
quired, retighten screws.
Fig.
23
15
From the library of: Superior Sewing Machine & Supply LLC

22A
~lA
~~
16
From the library of: Superior Sewing Machine & Supply LLC

The parts illustrated on pages 14 and 16, and described on this page and page 17 represent the parts that
are used on Styles 56300 VF and VG, but not used on Styles 56300 F and G.
Unless otherwise specified in the description, the parts are used on all the machine styles covered in
this catalog. The parts shown in phantom views and bearing no reference numbers are common to Styles
56300 F, G, VF and VG.
Use Catalog No . 129M F ifth Edition Style 56300 F for 56300 VF, and Style 56300 G for 56300 VG. for all
parts not illustrated or described in this catalog.
Reference
numbers that are inside a bracket or box on the picture plate and have indented descript ions,
indicate they are
component parts of a complete part or assembly.
"AIR-KLIPP" CHAIN CUTTER. THROAT PLATE, CLOTH PLATE, CLOTH PLATE COVER AND MISCELLANEOUS PARTS
Ref.
....!i£:.
# 1
* -
2
*# 3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
21A
22
22A
23
24
*# 25
26
# 27
28
29
30
31
*# 32
* :! 33
*# 34
*# 35
36
37
38
# 39
*40
41
42
43
44
45
46
47
Part
~
G29914
G29914
A
77 K
99670 F
99584 c
999-170
HT2C
22729 B
80265
99671 c
22807
99691
99673
E
51225 w
41071 G
99672 H
99672 R
96516
99672 J
96515
99672 R
99316
22716 A
99677 J
99677 L
99659 B
99697
99669 D
56381-212
G56381-222
51281 AC
35772 H
22760 A
22845 B
99673 D
99652 A
99331
G56380
51280 J
80
660-313
GA51324
GA51324 W
22839 E
56301 D
43296
57 I~B
1543f\ c
57 I~D
605 A
Description
Air-Klipp,
for Style 56300 VG -
Air-Klipp,
for Style 56300 VF - -
Screw ------- ------
Upper Knife ---
Air-Klipp
Cover - -
Oil Felt- -
Screw - -
Screw - -
Washer- -
Knife Holder,
marked "MF"
Screw -------
Air-Klipp
Frame - -
Bushing - - -
Washer- ------
Nut -------
Knife Driving
Link Assembly
Knife Driving Link-
Pin - - - - - - - - -
Connecting Rod- ---
Pin -------------
Knife Driving Link-
Screw, for No. G29914 - -
Screw, for No. G29914 A - - - - - -
Inlet, marked "GJ", for No . G29914- -----
Inlet, marked "GL", for No . G29914 A- ---
Spacer, for No. G29914- ------
Spring- ------------------
Lower Knife, marked "GJ"- - - - - - - - - -
Cloth Plate Cover, for Style 56300 VF - -
Cloth Plate Cover, for Style 56300 VG
Cloth Plate Cover Spring- - - - -
Spring Washer ------
Screw - - - - - -
Screw - - -
Li
nk Bushing- - - - - - - - -
Washer- ------ -----------
Cylinder Screw- ------------
Throat Plate Support- -
Dowel Pin - - - - - - - - - -
Screw, for
throat plate support - - - - - - - - - - -
Well Nut- ------------
Throat Plate, for Style 56300 VG- -
Throat
Plate, for Style 56300 VF- -----
Screw,
for cloth plate- -
Cloth Plate - - - - - - - - -
Nipper Spring Base- -- ----
Nipper Spring Plate - -
Nipper Spring - - - - - -
Nipper Spring Screw - - -
Screw, for nipper spri ng base -----
* May be ordered complete as llo. 29480 MV for Style 56300 VF.
# May be ordered complete as No. 29480 M\tl for Style 56300 VG.
17
Amt.
~
1
1
4
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
3
3
1
1
1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
From the library of: Superior Sewing Machine & Supply LLC

18
From the library of: Superior Sewing Machine & Supply LLC

PNEUMATIC PARTS
Ref. Part
Amt.
No. No.
Oescri ~ tion
~
1
39583 A
Mounting Bracket ------- - -- - --1
2
671
F-8 Straight Fitting ------------ - 1
3
671
0-7 Pressure Regulator and Gauge --1
4
671
F-6 Reducer Bushing- -----------1
5
671
F-1
Male
Fitting ------- - - - ----1
6
671 B-1 Air Tube, 36 inches (914.4rrm)
long -- - - ---1
7
671 F-2
Elbow Fitting-
-------------1
8
22729 B
Screw-
------ - - - --------2
9
671
F-1 Male Fitting -- - -- - ------1
10
671-1 Air Valve- ------- - 1
11 61242
Pitman Rod
Collar- - - -----1
12
88
Screw-
------------ - --2
13 22651
CB-4 Set Screw-
----- - ------- - --1
14
671-2 Air Valve Mounting Block -- - --1
15
671-3 Air Valve Actuator Block -1
16 22651
CB-4 Set Screw-
---- - ---------1
17 1453 A
Pitman Rod -------------- - - -1
18 21371 MZ
Connection ------- - -----1
19
671 B-11 Air Tube,
30 inches (762.0rrm) long ----- - --1
20
671
0-2 Air Jet- -- - -- - ------- - - - ---1
21
671 B-3 Air Tube, 45
inches (1143. Omm) long- - - - - --1
22
671 B-12 Air Tube,
12
inches
(304.8mm)
long ---- - -1
19
From the library of: Superior Sewing Machine & Supply LLC

WORLDWIDE SALES AND SERVICE
Union Special Corporation maintains sales and
service facilities throughout the world. These
offices will aid you in the select i on of the right
sewing equipment for your particular operation.
Union Special Corporation representatives and
servicemen are factory trained and are able to
serve your needs promptly and effic i ently .
Whatever your location, there is a Union Special
Corporation representative to serve you. Check
with him today .
Norcross, GA
Chicago, IL
Da ll as, TX
Commerce, CA
New York, NY
Philadelphi
a, PA
Woburn, MA
Opa-Locka, FL
Montreal, Quebec
Toronto, Ontano
Catano, Pu erto Rico
Brussels, Belgium
Leicester. England
Pari
s, France
Stuttgart, W G
er many
Hong Kong
It is important to remember that LEWIS® and
COLUMBIA ® machines are also products of Union
Special Corporation, thus offering the industry the
most complete line of the Finest Quality sewing
machines .
Ot her Representatrves throughout
all parts of th world
Ftnest Oual • ty
Un r on Spec u 1t Co rp o ral ro n. 400 N Fra nk lin SlrP e l. Ch caqo IL 60610. U S A
Un •o n Spe c lil l, Gm bH, Sc hw ab str ,1">S C 33 D 7000 Slu ll q ot rl 1 WP 'o l G •m an y
Prmred In U S A
! 48 21
From the library of: Superior Sewing Machine & Supply LLC