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  9. UnionSpecial Advanced 56100 Series Setup guide

UnionSpecial Advanced 56100 Series Setup guide

CATALOG NO.
130M
Fourth
Edition
STY
LE
58100
M
\
I
®
Finest Quality
Adjusting instructio s and
illustrated parts list
Class
56100
-
Advanced
Series,
bag
seaming
machines
From the library of: Superior Sewing Machine & Supply LLC
CATALOG
NO.
130M
ADJUSTING
INSTRUCTIONS
AND
ILLUSTRATED
PARTS
LIST
FOR
CL.ASS
56100
ADVANCED
SERIES
BAG
SEAMING
MACHINE
STYLE
56100
M
Fourth
Edition
© 1965'
1981
By
Union
Special Corporation
Rights
Reserved
in
All
Countries
December.
1981
2
From the library of: Superior Sewing Machine & Supply LLC
IDENTIFICATION
OF
MACHINES
Each
UNION
SPECIAL
machine
carries
a Style
number,
which
on
this
Class
machine
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.
Reference to
directions,
such
as
right,
left,
front
or
rear,
are given
relative
to
the operator•s position while seated
at
the machine.Operating direction of the hand-
wheel
is
counterclockwise,
as
viewed
from
the
right
end
of
machine.
CLASS
DESCRIPTION
Advanced
high speed, single needle,
flat
bed
machine.
High
throw, needle bearing
needle bar drive,
light
weight presser bar
and
needle bar driving
mechanism,
enclos-
ed
automatic
lubricating
system,
filtered
oil
return
pumps
for
head
and
base,
later-
al looper
travel.
Maximum
work
space to
right
of
needle bar, 8
l/4
inches
(209.6mm).
MACHINE
STYLE
56100
M Typical application -
For
seaming
medium
and
large
size
cotton,
light
and
medium
weight burlap bags.
Stitch
range 3 1/2 to 7;
set
at
3
l/2
S.P.I.
Seam
specification
401-SSa-1.
Maximum
recommended
speed
6000
R.P.M.
sewing
at
3
l/2
to 5
S.P.I.
and
6500
R.P.M.
sewing
at
more
than 5
S.P.I.
Recommended
speed
for
machines
operating
on
a duty cycle of
50%
or
more
is
10%
less than
maximum.
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.
Recommended
needle for Style
56100
M
is
Type
144
G.
It
has
a
round
shank,
round
point,
No.
2
bag
length, double groove, spotted, short point,
chromium
plated,
and
is
available in sizes -054, 200/080, 230/090, 250/100.
Selection of proper needle
size
is
determined
by
size
of thread used.
Thread
should pass freely through needle
eye
in order to produce a
good
stitch
formation.
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
144
G,
Size 200/080
11
•
3
From the library of: Superior Sewing Machine & Supply LLC
•
Fig. 1
THREADING
AND
OILING
DIAGRAM
FOR
STYLE
56100
M
Thread
machine
as
indicated above.
The
looper threading
has
been
enlarged for
clarity.
The
oil
has
been
drained
from
the
machine
before shipping
and
the reservoir
must
be
filled
before
starting
to operate. Maintain
oil
level in
11
0PERATE
11
position
and
add
oil
when
needle
is
to the black
line
located to the
left
of the
11
0PERATE
11
zone
marked
''LOW
11
•
The
machine
is
automatically lubricated
and
no
oiling
other than
keeping the
main
reservoir
filled
is
necessary.
For
further
lubricating
instructions
refer
to paragraph
on
11
LUBRICATION
11
•
4
From the library of: Superior Sewing Machine & Supply LLC
SAFETY
RULES
A
CAUTION
THIS
SAFETY
SYMBOL
INDICATES
YOUR
PERSONAL
SAFETY
IS
INVOLVED.
TO
PREVENT
PERSONAL
INJURY:
-
All
power
sources to the
machine
MUST
be
TURNED
OFF
before threading,
oiling,
ad-
justing
or replacing
parts.
-
Wear
safety glasses.
-
All
shields
and
guards
MUST
be
in position before operating machine.
-DO
NOT
tamper
with safety
shields,
guards,
etc.,
while
machine
is
in operation.
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
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
needle will
register
on
black
line
marked
11
FULL
11
•
Oil
must
be
added
when
gauge
needle
registers
on
black
line
marked
11
LOW
11
•
Al-
though
the
machine
can
be
operated
safetly
when
gauge
needle
registers
in the
11
0PERATE
11
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
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.
5
From the library of: Superior Sewing Machine & Supply LLC
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.
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
LOWU.
-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
•
SYNCHRONIZING
LOOPER
AND
NEEDLE
MOTIONS
Turn
handwheel
in the operating
di-
rection
until
the point of the looper
(A,
Fig.
3)
mov
i
ng
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
handwheel
in the reverse direc-
tion
until
the point of the 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
re-
spect to the looper point are the
same,
looper
and
needle motions are synchroniz-
ed-
a variation of .005 inch
(.127mm)
is
allowable.
If
the distance
from
the
eye
of the needle to the point
of
the looper
Fig. 3
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
Prop
er SYNCHRONIZATION of
Looper
& Needle
these
two Dimen
si
ons
will be the
same
J
~
J
~
~
1/84"
1/84"
(.4mm) (.4mm)
-r
-f~~~-l
----
Looper
in
FRONT of
Needle Needle
in in
OPERATING REVERSE
Di
rection
Direction
Fig. 4
NOTE:
The
1/64 inch
(.4mm)
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
adjusting screw (E).
Tap
or pull
slightly
as
required to position
shaft
for
proper synchro-
nization. Tighten screw
{C)
securely
and
remove
rod
or
screw
used
to position
shaft.
6
From the library of: Superior Sewing Machine & Supply LLC
SYNCHRONIZING
LOOPER
AND
NEEDLE
MOTIONS
(Continued)
Loosen
lock nut
(F)
and
TORQUE
thrust
adj-
justing
screw
(E)
to 6 in. lbs. (7cm/kg);
re-tighten
lock nut
(F)
securely.
With
the looper
at
extreme
right
end
of
travel,
check
location of the
right
looper connecting
rod
bearing using
gauge
No.
21227
ex.
Remove
nut
(A,
Fig.
5)
and
place hole of
gauge
over threaded stud.
The
left
end
of
gauge
should locate again-
st
the
RIGHT
side of looper rocker
cone
(B).
If
adjustment
is
necessary, loosen
clamp
screw
(C)
and
reposition looper
drive lever
(D)
as required, then tighten
screw (C).
If
gauge
is
not
available,
check
set-
Fig. 5
ting with a
scale.
Distance
between
the
centerline
of rocker
cone
and
centerline
of looper drive lever stud should
be
4 1/16
inch
(103.2mm)
as
shown
in
Fig.
5;when
looper
is
at
its
extreme
right
end
of
travel.
LOOPER
AND
LOOPER
NEEDLE
GUARD
SETTINGS
Insert
a
new
needle, type
and
size
spec-
ified.
Looper
gauge
is
5/32 inch
(4.0mm)
which
is
the distance
from
point of looper
(A,
Fig.
6)
to
centerline
of needle
(B)
when
looper
is
at
extreme
right
end
of
its
travel.
Looper
gauge
No.
21225-5/32
(C)
is
available
for
this
setting.
Adjustment
can
be
made
by
loosening nut
(D),(it
has
a
left
hand
thread)
and
nut (E); turn connecting
rod
(F)
as
re-
quired to
attain
specified dimension.
Hold
connecting
rod
in position
and
tighten nut
(E), then nut (D).
NOTE:
Be
sure
that
the
left
ball
joint
is
in a
vertical
position
and
does
not bind
after
adjustment.
Fig. 6
While
turning
handwheel
in operating direction
and
the looper
(A,
Fig.
7)
moves
to the
left,
its
point should
be
set
to brush but not pick
at
rear
of
needle (B). Adjustment
can
be
made
by
loosening screw
(G,
Fig.
6),
turn stop screw
(H)
clockwise to
move
looper towards the
rear,
counterclockwise acts the reverse.
It
is
suggested to hold looper
towards the front while
making
this
adjustment. Tighten screw
(G)
after
adjustment
has
been
made
and
recheck
movement
of
looper.
Looper
needle guard (attached to looper) should
be
set
to
barely contact the
front
of needle without deflecting as looper
moves
to
left.
NEEDLE
BAR
HEIGHT
Turn
handwheel
to position point
of
looper flush with the
left
side
of
needle.
7
Fig. 7
From the library of: Superior Sewing Machine & Supply LLC
NEEDLE
BAR
(Continued)
Height of needle bar
(A,
Fig.
8)
is
correct
when
the top of the
eye
of needle
(B)
is
Fig. 8
Fig.
10
1/64 inch
(.4mm)
below
the underside of looper
as
shown
in
Fig. 4.Adjustment
can
be
made
by
loosening screw
(C,
Fig.
8),
move
needle bar
(A)
up
or
down
as required, retighten screw.
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
trav-
el
set
to desired
stitch
length.
At
highest point of
travel,
tips
of feed
dog
teeth should extend the depth of a tooth
or
approximately 3/64 inch
(1.2mm)
above
throat
plate
and
paral-
lel
to
same.
Screw
(C)
should
be
set
to support feed
dog
after
screw
(D)
has
been
loosened
which
secures feed
dog
in
position.
Parallel adjustment
can
be
made
by
loosening nut(A, Fig.
10)
and
turn sc·
rew
(B)
clockwise to lower
front
of feed dog,
counterclockwise acts the reverse.
When
properly
set,
re-
tighten 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 ensure
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
retighten nut.
CHANGING
STITCH
LENGTH
Set the
stitch
to required length.This
is
accomplished
by
loosening lock nut(F,
Fig.ll)
Fig. 9 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 the mainshaft (H),
which
is
marked
with
11
L
11
and
11
S
11
• Turning the screw in a clockwise direction
shortens the
stitch
(moves
stitch
regulating stud
toward
the
11
S
11
)
and
turning
it
in a counterclockwise direction lengthens
the
stitch
(moves
stitch
regulator stud
toward
the
11
L
11
).
Re-
tighten the lock nut 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).
The
feed rocker assembly
may
require
lubrication
and
re-
pair
after
years of operation. This
can
be
accomplished
as
follows:
Loosen
nut
(E,
Fig.
11)
and
remove
nut (F).
Remove
feed rocker
arm
(D)
from
machine
by
rocking s·
lightly.
Loosen
screws
(A)
and
remove
stop
collar
on
right
end
of
shaft
(C).
Shaft
can
now
be
withdrawn.
Loosen
Allen screw
(L)
and
remove
shaft
(M).
Now
repack bearings.
8
From the library of: Superior Sewing Machine & Supply LLC
CHANGING
STITCH
LENGTH
(Continued)
When
packing bearings,
parts
must
be
clean
and
grease should
be
applied
directly
from
the tube to avoid contamination.
Tube
of grease
can
be
supplied under
part
No.
28604
P.
Greased bearings are located
at
(N,
P, Fig. 11).
If
grease sealed bearings
are
replaced, they should
be
pressed in flush with the
casting.
To
assemble,
start
tapered
end
of
shafts
first,
twisting
slightly
when
entering the grease
seals
to pre-
vent
damage.
Check
for
proper adjustment
of
feed
dog
as
described under the
11
Feed
Dog
Settings
11
•
Also
check to see
that
there
is
no
binding
at
any
point.
Fig.
11
Fig.
12
REAR
NEEDLE
GUARD
Set
rear
needle guard
(A,
Fig.
12)
horizontally
so
that
it
does
not
quite
con-
tact
the
rear
of needle (B). A clearance of .005 inch
(.127mm)
is
permissible.
It
should
be
set
vertically
so
that
its
vertical
face
is
even
with the top of the
needle eye, with needle bar in
low
position.
To
adjust
needle guard, loosen
clamp
screw (C),
move
the needle guard
on
its
holder
as
required
and
retighten
screw.
Stitch
length
can
be
changed without a change in the
rear
needle guard because
it
is
not attached to the feed bar.
THREADING
Draw
looper
and
needle threads
into
the
machine
and
start
operating
on
a piece of
fabric.
Refer to
threading diagram (Fig.
1)
for
manner
of
threading
this
machine.
LOOPER
THREAD
CAST-OFF
WIRE
Looper
thread
cast-off
wire
(A,
Fig. 13)
locat-
ed
on
the take-up
shield
(B)
controls
the
amount
of
slack
thread in the system
and
can
be
moved
to
any
position.
It
should
be
set
laterally
so
that
it
is
midway
between
the
two
discs
of
take-up
(C)
and
the
tip
parallel
with the
discs.
9
Fig.
13
From the library of: Superior Sewing Machine & Supply LLC
LOOPER
THREAD
CAST-OFF
WIRE
(Continued)
It
is
usually
set
towdrd
the take-up to almost the
limit
of
its
slot
so
that
it
bare-
ly
clears
the highest point of the take-up.
The
height
and
lateral
adjustment of the
retainer
affects
the control of looper thread as looper
moves
to the
left.
Ordinarily
it
will
be
set
in approximately a horizontal position.
More
looper thread
is
given to
the
stitch
when
the
retainer
is
raised
and
set
towards the take-up.
However,
if
the
retainer
is
raised too high, the looper thread
triangle
may
be
wiped
under the blade
of the looper, causing
traingle
skips or pulled
down
stitches.
This
can
be
checked
by
observing the action of the looper thread as the looper
moves
to the
left.
THREAD
TENSIONS
Tension
on
the needle thread should
be
only
sufficient
to produce uniform
stitch-
es
on
the under surface of the
fabric.
Tension
on
the looper thread should
be
just
sufficient
to steady the thread.
PRESSER
BAR
HEIGHT
Height of presser bar
(D,
Fig. 8)
is
set
correctly
if
it
is
possible to
remove
the presser foot
when
the foot
lifter
lever,
located
at
the
back
of
the
machine
and
extending
above
the upper crank
chamber
cover
is
fully
actuated (pulled to the
right).
There should
be
approximately l/16 inch
(l.6mm)
clearance
between
lower surface of the
presser bar connection
and
guide
(E)
and
bottom surface of
head
opening in the
bed
when
foot
lifter
lever
is
released
and
presser foot lying
flat
on
the
throat
plate
with feed
dog
below
throat
plate.
Adjustment
can
be
made
by
turning
handwheel
to position needle bar
at
bottom
of
stroke.
Loosen
screw
(F)
and
while holding presser foot
down
on
throat
plate,
posit-
ion presser bar connection
and
guide
as
required to
attain
specified clearance
and
re-
tighten screw.
PRESSER
FOOT
PRESSURE
Regulate the 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 pressure, counterclock-
wise acts the reverse.
SETTING
NEEDLE
THREAD
GUIDE
AND
FRAME
EYELET
Turn
handwheel
in operating
~irection
until
the needle bar reaches
its
lowest position. Set
needle thread take-up wire (8, Fig.
14)
so
that
its
thread contact surface
is
approximately 3/16
inch
(4.8mm)
above
the center of the needle bar
thread
eyelet
(C).
Lower
this
setting
for a
smaller needle thread loop,
raise
for
a
larger
loop. Set needle thread
frame
eyelet
(D)
so
that
it
is
approximately 7/8 inch
(22.2mm)
above
centerline
of
its
attaching screw (Fig. 14).
TORQUE
REQUIREMENTS
Fig.
14
Torque
specifications
given in
this
catalog
are
measured
in inch-pounds or centimeter/kilo-
grams.
All
straps
and
eccentrics
must
be
tightened to
19-21
in.
lbs.
(22-24cm/kg)
unless otherwise noted.
10
From the library of: Superior Sewing Machine & Supply LLC
TORQUE
REQUIREMENTS
(Continued)
All
nuts,
bolts,
screws,
etc.,
without torque
specifications
must
be
secured
as
tightly
as
possible, unless otherwise noted. Special torque specifications
of
con-
necting rods,
links,
screws,
etc.,
are
shown
on
part
illustrations.
SPECIAL
INSTRUCTIONS
NEEDLE
LEVER
When
adjusting needle lever or replac-
ing related
parts,
follow
instructions
in
sequence as
listed:
l.
Install
"0"
rings
(A,
Fig.
15)
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
"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
machine
bed.
Fig.
15
3.
Install
temper load ring
(E)
and
compression
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
"0"
ring.
Compress
components
together
by
tighening 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.
16
As
viewed
looking
down
from
rear of machine, spot screws
(A.
Fig.
16)
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).
ll
From the library of: Superior Sewing Machine & Supply LLC
ALIGNING
MAINSHAFT
TO
CRANKSHAFT
(Continued)
.045"
( 1.14mm)
Fig.
17
•
CD
·
•
Fig.
18
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. 17.
Looper
drive crank (8, Fig.
16)
must
be
positioned
laterally
with l/32 inch
(.8mm)
clearance
between
it
and
mainshaft
(E)
as
shown
in Fig. 16.
Once
these
set-
tings are
made,
it
is
very important
that
the couplings are tightened
in
the follow-
ing sequence
for
best performance.
Tighten spot screws
(A)
temporarily,
to the looper drive crank. Tighten
set
screws
(C)
temporarily, to the crankshaft
and
mainshaft.
Torque
screws
(F)
to
19
-
21
in.
lbs.
(22
-
24
em/kg).
Loosen
spot
screws
(A)
and
set
screws (C). Re-torque
screws
(F)
to
19
-
21
in.
lbs.
(22
-
24
em/kg), then, torque screws
(A
and
C)
to
19-21
in.
lbs.
(22-
24cm/kg)
.
The
oil
drip plate
{A,
Fig.l8)
locat-
ed
in the
oil
reservoir should
be
posi-
tioned 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
adj-
usted
by
loosening (2) screws
(B)
in top
of the
oil
reservoir
back
cover to posi-
tion
as
required, retighten screws.
12
From the library of: Superior Sewing Machine & Supply LLC
Before
this
machine
left
the factory
it
was
adjusted
and
inspected to give
you
the utmost
satisfaction
and
durability
at
all
times.
If,
however,
the
machine
has
been
readjusted
and
is
not
sewing
properly, see the chart
below
for
suggestions
which
may
prove
beneficial
to you.
SKIPPED
STITCHES
Condition
Causes
Cures
Needle
loop
too
small
Frame
needle thread guide Raise
frame
needle thread
set
too
low
guide
slightly.
Needle
thread stretched
at
Lower
frame
thread eyelet
bottom
of
stroke,
loop not and/or reduce needle tension
formed
till
stretch
relieved
The
needle thread creased
Use
oversize ball
eye
needle,
because
it
is
too
tight
and
lower
frame
needle
eyelet,
needle
is
hot reduce tension
Needle
thread pinched
by
Drop
needle
guard
slightly
needle guard, collapsing
needle loop
Thread
twisting a
round
Keep
needle
loop
as
small
as
needle possible,
keep
needle thread
tension to a
minimum.
Use
a
left
twist thread
Needle
thread
sticking
in
Use
lubricant
on
thread
needle grooves,
due
to heat I
Needle
does
not
rise
enough
Increase looper
gauge
l/64
to
form
needle loop properly to 1/32 inch
Looper
misses needle loop Material
is
not held
down
in
See
if
presser bar
is
stick-
as presser foot
is
coming
front
of
seam
and
is
flagging ing
off
a
seam
Needle
deflect
i
ng
towards
Use
sharp point needle
operator
Needle
loop
formed
properly
Needle
bar
set
too high
Lower
needle bar
slightly
but brushed out of the
way
·
by
looper
Looper
misses needle loop
Needle
deflecting
toward
op-
Do
not hold
back
excessively
when
operator
is
trying to
erator
who
may
be
holding
on
material. Properly adjust
match
seams
or
ends
back
on
material while feed
and
maintain a proper
matching
seams
or
ends
of feeding pressure
on
foot
so
garment operator
does
not hold
back
Needle
misses
triangle
on
Looper
thread too loose, not Increase looper thread
looper thread side
making
a
good
triangle
tension
Needle
being deflected to
Do
not pull material
at
the
the rear
by
burr
on
needle back.
Use
a sharp needle to
point or
due
to operator stop needle
from
glancing
pulling
on
material,
or
off
seam.
Check
needle
for
needle glancing
off
when
burr
coming
on
a
seam
NOTE:
More
detailed information concerning the double locked
stitch
(stitch
type
401)
is
available under "Stitch Formation,
Type
401".
13
From the library of: Superior Sewing Machine & Supply LLC
ORDERING
REPAIR
PARTS
ILLUSTRATIONS
This catalog
has
been
arranged to simplify ordering
repair
parts.
Exploded
views
of various sections of the
mechanism
are
shown
so
that
the
parts
may
be
seen
in
their
actual
position
in the machine.
On
the
page
opposite the
illustration
will
be
found
a
listing
of the
parts
with
their
part
numbers,
descriptions
and
the
number
of pieces required in the
particular
view
being
shown.
Numbers
in the
first
column
are reference
numbers
only,
and
merely
indicate
the
position
of
that
part
in the
illustration.
Reference
numbers
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
indi-
cated
by
indenting
their
descriptions
under the description
of
the
main
sub-assemb-
ly.
Example:
48
49
50
51
52
29105
AK
22587
K
56343
c
56343
E
22559
A
Crank
Assembly, looper driving
lever------------------------
1
Screw,
beari~g
cap
(upper)
-----------------------------
2
Guide, ball
joint--------------------------------------
1
Splasher,
oil
------------------------------------------
1
Screw, bearing
cap
(lower)
-----------------------------
2
It
will
be
noted in the
above
example
that
the
eccentric,
ball
stud,
and
bear-
ing are not
listed.
The
reason
is
that
replacement
of
these
parts
individually
is
not
recommended,
so
the complete sub-assembly should
be
ordered.
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, 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,
regardless
of
catalog in
which
they ap-
pear.
IMPORTANT!
ON
ALL
ORDERS,
PLEASE
INCLUDE
PART
NAME
AND
STYLE
OF
MACHINE
FOR
WHICH
PART
IS
ORDERED.
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
sub-
sidiaries
and
authorized
distributors.
They
are designed according to the
most
ap-
proved
scientific
principles,
and
are
made
with utmost
precision.
Maximum
efficien-
cy
and
durability
are assured.
TERMS
Prices are 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.
14
From the library of: Superior Sewing Machine & Supply LLC
EXPLODED
VIEHS
AND
DESCRIPTION
OF
PARTS
15
From the library of: Superior Sewing Machine & Supply LLC
-
®~
54~
_,
58
21
16
From the library of: Superior Sewing Machine & Supply LLC
Ref.
No.
l
2
3
4
5
6
7
8
9
10
ll
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
39
40
41
42
43
44
45
46
47
*48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
Part
No.
22829
21375
AV
98
A
52
A
22593
51158
D
51104
F
50-216 Blk.
51157
H
21657
E
22528
J87 J
77
51204
c
51104
H
51204
A
22798
A
51204
52958
B
25
s
51482
A
22569
c
56382
56382
A
56382
N
22585
56393
D
7947
56393
c
35731
A
51294
R
660-342
22513
95
660-694
22889
A
539
20
22848
22894
E
56382
E
56382
D
22548
56382
H
56382
G
22524
22585
A
22839
51124
D
87
56180
B
51280
J
22570
A
56168
51125
E
906
22829
56382
J
56382
59493
A
666-214
22848
56382
AA
56382
L
56382
y
56382
AB
22524
MAIN
FRAME,
CAST-OFF
PLATE
AND
MISCELLANEOUS
COVERS
Amt.
Description
~
Screw
-----------------------------------------------------------------------
2
Guard,
belt
-----------------------------------------------------------------
l
Screw
-----------------------------------------------------------------------
2
Eyelet,
frame
looper thread
-------------------------------------------------
l
Screw
-----------------------------------------------------------------------
2
Eyelet, take-up
-------------------------------------------------------------
2
Wire,
cast-off
---------------------------------------------------~----------
l
Pin,
dowel
------------------------------------------------------------------
2
Support,
cast-off
wire
------------------------------------------------------
l
Washer
----------------------------------------------------------------------
1
Screw
-----------------------------------------------------------------------
l
Screw
-----------------------------------------------------------------------
2
Screw
-----------------------------------------------------------------------
l
Support, auxiliary
cast-off-------------------------------------------------
l
Cast-off,
auxiliary---------------------------------------------------------
1
Support,
cast-off
wire
------------------------------------------------------
1
Screw
-----------------------------------------------------------------------
l
Wire,
cast-off
--------------------------------------------------------------
l
Eyelet,
frame
looper thread
-------------------------------------------------
l
Screw
-----------------------------------------------------------------------
2
Guard
-----------------------------------------------------------------------
1
Screw
-----------------------------------------------------------------------
2
Cover,
head
-----------------------------------------------------------------
l
Felt-------------------------------------------------------------------
l
Gasket
----------------------------------------------------------------------
1
Screw
-----------------------------------------------------------------------
l
Clamp,
head
oil
tube
--------------------------------------------------------
l
Nut
-------------------------------------------------------------------------
l
Block,
head
oil
tube
mounting
-----------------------------------------------
l
Plate,
presser bar connection guide
-----------------------------------------
2
Screw
-----------------------------------------------------------------------
l
Lockwasher
------------------------------------------------------------------
l
Screw
-----------------------------------------------------------------------
3
Screw, plug
-----------------------------------------------------------------
l
Gasket, needle lever eyelet
----------------------------------·
·
--------------
l
Screw, adapter
--------------------------------------------------------------
l
Eyelet,
frame
needle thread
-------------------------------------------------
l
Washer
----------------------------------------------------------------------
l
Screw
-----------------------------------------------------------------------
l
Screw, needle lever
thrust
collar
and
stud
----------------------------------
2
Gasket
----------------------------------------------------------------------
l
Cover, lower crank
chamber
---------------------
·
·----------------------------
l
Screw
-----------------------------------------------------------------------
4
Gasket
----------------------------------------------------------------------
l
Cover, top
oil
reservoir
----------------------------------------------------
l
Screw
-----------------------------------------------------------------------
8
Screw
-----------------------------------------------------------------------
3
Screw,
throat
plate
support
-------------------------------------------------
3
Throat Plate
----------------------------------------------------------------
l
Screw
-----------------------------------------------------------------------
2
Support,
throat
plate
-------------------------------------------------------
l
Pin,
dowel
-------------------------------------------------------------
2
Screw
-----------------------------------------------------------------------
l
Holder, needle guard
--------
-
-----------------------------------------------
l
Guard, needle
---------------------------------------------------------------
l
Screw
------------------------------------------------------------------
l
Screw
----------------------------------------------------
·
-------------------
2
Cover, looper drive
shaft
---------------------------------------------------
l
Gasket
----------------------------------------------------------------------
l
Pump
Assembly,
oil,
base----------------------------------------------------
l
Felt
-------------------------------------------------------------------
l
Screw
-----------------------------------------------------------------------
9
Cover, back,
oil
reservoir
--------------------------------------------------
l
Gasket
----------------------------------------------------------------------
l
Block, clamping
-------------------------------------------------------------
l
Plate,
oil
drip
-------------------------------------------------------------
l
Screw
-----------------------------------------------------------------------
2
*
For
old Style
56180
A,
use
countersunk
head
screw
No.
80.
17
From the library of: Superior Sewing Machine & Supply LLC
16
\
1~1\_
l
lp
~
-l
I
18
From the library of: Superior Sewing Machine & Supply LLC
Ref.
No
.
1
2
3
4
5
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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
MAIN
FRAME,
BUSHINGS,
OIL
GAUGE
AND
MISCELLANEOUS
OILING
PARTS
Part
No.
22
793
22539
R
56394
A
11635
B
660-221
61256
G
56394
c
56394
B
63494
K
660-455
63494
G
63494
F
56390
E
57890
B
22569
B
56390
H
660-665
56390
J
56382
AC
90
56382
c
56382
B
22541
c
22733
E
56382
M
56301
22839
c
24
X
25
56381-219
51281
AC
35772
H
22760
A
22845
B
80
22848
20
51
2
82
AH
56170
51154
E
95
56393
w
56393
T
56393
.L
56154
51257
AA
57836
B
56390
666-259
50-895
Blk.
56193
A
52942
w
56190
57842
B
35897
BV
56390
G
21657
X
Amt.
Description
~
Screw
---------------------------------------------------
1
Screw, plug
---------------------------------------------
1
Shaft,
oil
gauge
adjusting
------------------------------
1
Nut
-----------------------------------------------------
1
"0"
Ring
------------------------------------------------
1
Washer
--------------------------------------------------
2
Float
Assembly,
oil
gauge
--------------
-
----------------
Rod,
oil
gauge
connecting
-------------------------------
1
Gauge
Assembly,
oil
-------------------------------------
1
Ring,
oil
------------------------------------------
1
Washer,
spring
-------------------------------------
1
Nut
------------------------------------------------
1
Gasket
--------------------------------------------------
1
Housing, crankshaft bushing, includes bushing
-----------
1
Screw
---------------------------------------------------
3
Washer,
thrust
------------------------------------------
4
Bearing, needle,
thrust
---------------------------------
2
Ring,
pilot
---------------------------------------------
2
Plate,
oil
and
baffle
-----------------------------------
1
Screw
---------------------------------------------------
2
Gaske
t -
-------------------------------------------------
1
Cover, upper crank
chamber
------------------------------
1
Screw
---------------------------------------------------
4
Screw, plug
---------------------------------------------
1
Gasket
------------------
-
-------------------------------
2
Cloth Plate
---------------------------------------------
1
Screw
----
-
----------------------------------------------
2
Guide,
edge
---------------------------------------------
1
Screw
---------------------------------------------------
2
Cover, cloth
plate
--------------------------------------
1
Spring
---------------------------------------------
1
Wa
sher, spring
-------------------------------------
3
Screw
----------------------------------------------
3
Screw
------
-
---------------------------------------
1
Screw
---------------------------------------------------
3
Screw
---------------------------------------------------
3
Washer
--------------------------------------------------
3
Shield,
oil,
end
and
back-------------------------------
1
Wire, needle thread take-up
-----------------------------
1
Bushing, needle bar (upper)
-----------------------------
1
Screw
-·
--------------------------------------------------
1
Pad,
felt
------------------------------------·-----------
1
Pump
Assembly,
oil,
head--------------------------------
1
Fe
l t
-----------------------------------------------
1
Bushing, needle bar (lower)
-----------------------------
1
Bushing, presser bar (lower)
----------------------------
1
Bushing, feed rocker
shaft
------------------------------
2
Bushing, mainshaft
(left)
-------------------------------
· 1
Felt
----------------------------------------------------
1
Bushing, looper rocker
shaft
----------------------------
2
Felt,
machine
base
(front)
------------------------------
1
Bushing, looper drive
lever
shaft
(front)
--------
-
------
1
Bushing, mainshaft (intermediate)
-----------------------
1
Bushing, looper drive lever
shaft
(rear)
----------------
1
Filter,
oil
intake
--------------------------------------
1
Bushing, mainshaft (inner
right)
------------------------
1
Bushing, tension release
lever
shaft
--------------------
1
19
From the library of: Superior Sewing Machine & Supply LLC
2
~~
6
78
0 9
'
10
0
11
12
~11
TORQUE
TO
19-21
in.
Ibs.
(22-24
em/kg)
1
~
13
NO
TE
:
C
ut-
o
ut
in
Ref.
No.
42
and
43
to
be
up
when
a
Rs
e
mblin
9
20
From the library of: Superior Sewing Machine & Supply LLC

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