How it Works
Union Special
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P260 Series
User Manual
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Union Special P260 Series User Manual

•
INDUSTRIAL SEWING
FINEST
QUALITY
STYLES
P260-9/108 P260-9/109
MACHINES
P260-9/1
26
P260-9/139
P260-9/141
CATALOG
NO.
HIGH
SPEED SINGLE
MACHINES
AND
CLASS P26
FOR
GENERAL BARRING
TACKING
0
NEED
LE L
OPERAT
OCKSTITC
IONS
H
UNION SPECIAL
C H I
CORPORATION
CA
GO
CONTENTS
DESCRIPTION... LUBRICATION
...
...............
....
......
....... ........
................
....
...
........
..........
.............. 4
OPERATOR INFORMATION .....................
MACHINE
ADJUSTMENTS ............................ 8-21
INDEX
.....
Page
..
..
3-7
3
Bobbin ..............................
Adjusting Bobbin Winder
Case
Bobbin Bobbin Bobbin
Remov.a1
Case
Replacement..................... ... .... 7
Case
Threading
Bobbin Winding..
Description.....
General Special
Feed
Mechanism Adjustment.. ........................ 14-19
..
................................................
Characteristics..
Features
Driving Gear s...
.................................... 6-7
.. .........................
......................
...
............................. 7
..
..........................
......
...
..................... 3
.................
...
...
....
.......................................... .
Lateral Linkage {Barring and T a eking
...
Machines). .............................
Lateral
Machines).....
Linkage (Button Sewing
...
.................
.......
.....................
Longitudinal Linkage {Barring and
Tacking Machines)..........................
Length of
Tack...
....
..........
..........................
Longitudinal Linkage {Button Sewing
...
Machines)
Timing Lateral
Timing Longitudinal
Width
.....................................................
Feed
......
...
...................... 18, 19
Feed
......................
of Tack....................................
Knife Actuating and Clamp
Lifti~;~g
Safety Interlock ..........................
Tension
Adjustments. .............
Releaser
............
......................
...
...................
..............
...
......... 6
...........
...
...........
...
....
.......
......
..............
...
.......
......
...
...
...
..
..
18,
12-13
....
..
Page
.. 6
...
14
14
17
16 18
18
19 16
..
12 12
Page
Thread
6
Work
Knife Removal and Replacement.. .........
Wiper
.......... .
.......................................
Clamp Foot Lifter ........................
.....
13
........ 13
...
...
..
20
Knife Timing and Positioning ........................ 19-20
Positioning
Timing .......... .........................
3
Lubrication...... .......
Daily Care............................................
3
Week
Machine Threading ...........
Needles
........
...
.............
...
...............................
ly
Care ........................ ....
..........
...
...........................................
.............................. 20
........................... 19
........
............ 4
................
.........
............................
...
..
4
.......... 4
..
5
............ 5
Setting the Needle ............................................ 5
Sewing Meehan
Needle Bar Height ...............................
Positioning Shuttle Driver ....
Shuttle Timing ...
Speed .....................................................
Stop Motion Adjustments ...................
Arm
Shaft ... Engaging Starting Lever Starting Lever Tripping Linkage
Motion Brake ......
Stop Thread
Tens Bobbin Thread Needle Thread
ism
Adjustments .......
...........
....
...
...........
....
...........
Arm .........
..
....
Arm
............
.........................
..............
Stop
.......
...
..........
...
....
...................
......
............................ 9
...................
...
..............
ion Adjustments .........
..
.................................... ......
..
................
......
.......
...
.. ..............
...
........
..........
...
...........
........
........
................... 4
........
.......
..........
.............
....
......
......
......... 8
..........
........ 10
..............
....................... 7
...
...
...........
8-11
.... 8
..
...
...
..
21 21 21 21
9
11
7 7
2
DESCRIPTION
Machines of Class P260 are single-needle, lockstitch chines designed for barring chines dividual descriptions raised position
General
machine pulley
device actuated
shuttle
diameter of V-belt groove
Characteristics
Fully
Manually operated work clamp
Link
Automatic stop
Two-piece machine pulley (tight
enclosed starting
and
driving belt.
by
foot treadle.
take-up, short beak, central bobbin,
on
horizontal
axis.
and
clutching device.
3-1/4
bar
Needle
Clearance under clamp:
stroke: 1-9/16 Inches.
5/8
will
produce the
upon
and
stopping mechanism,
and
thread trlnvning
and
loose). Outside
inches.
Inch.
and
number
and
completion of
oscillating
of stitches indicated in their In-
will
stop automatically with needle In
ma-
tacking operations. The
stitching
Special Features
Style P260-9/108
ring bar sisting tying stitches).
Style P260-9/109 - for barring buttonholes
1
ng Forms a bar wide, consisting of and
Style P260-9/126 - for barring pockets
barring Inch long
stitches
left
cycle.
- for barring pockets
and
tacking operations
1/8
to
5/8
Inch long
of
42
stitches (12 staying,
Space
bows
and
other ornaments
1/8
to
5/16
3 tying stitches).
and
tacking operations. Forms a bar
and
1/16
(8
staying, 17 covering
rear corner of bar).
ma-
and
on
clothing, etc. Forms a
and
1/16
to
5/32
27
behind needle, 8 inches.
on
shoes
21
to
5/32
Inch long
stitches
Space
Space
and
1/16
(7
staying,
behind needle, 8 inches.
and
inch wide consisting of
and
3 tying stitches at
behind needle, 8 inches.
covering
general bar-
Inch wide con-
and
and
fasten-
and
garments.
to
5/32
inch
11
covering
other general
1/8
to
5/8
28
3
Flat
bed
Cylinder bed.
on
request. shorts, etc. Forms a line tack
type work plate furnished Style P260-9/139 - for tacking belt loops
sisting
Space
flat
Style P260-9/141 - for barring pockets, etc.,
plies
5/8
28 stitches stitches).
of
28
stitches (including 3 tying stitches).
behind needle, 8 inches. Regularly furnished
bed
type work plate.
of 15 oz. denim or equivalent. Forms a
Inch long
and
1/16
(8
staying,
Space
behind needle, 8 inches.
1/8
to
to
5/32
.Inch wide consisting of
17
covering, 1 cross
on
1/2
Inch long con-
on
and
trousers,
13
to
bar
1/8
2 tying
with
14
to
3
LUBRICATION
For best results, use proper
Oil.
Use
"Type
duce a minimum of stain
D"
Oil
when
on
fabric.
Daily Care
Before starting machine, apply a
to each
of
the
holes
indicated in Fig. 2.
"Type
an
oil
B"
or
"Type
is
desired to pro-
few
drops of oil
D"
Weekly Care
of
Remove
the
NOTE:
face
points indicated
At
(loose) should
bearing lubricant.
plate,
least
and apply a drop of oil to
in
Fig.
3.
once
each year, machine puliey
be
removed
OIL
md
repacked with ball
each
Fig.
2.
Lubricating
OIL
the
Machine
Cleaning
Using a short
or
shears),
around
the
clean
shuttle
bristled
brush {not point of
out all lint and other
and
all
other parts of
scissors
waste
the
sewing
area.
Wipe
off all
with material to
excess
be
sewn.
oil which
may
come
in
contact
SPEED
Maximum
speed
recommended
for these machines
2,000 stitches per minute, except Style P260-9/141
which
is
1,200-
Maximum nature of the operation, the type of material being sewn.
1,600.
efficient
speed
is
ability
determined
of the operator
upon
from
is
the
and
OIL
Fig.
3. Oil ing
Points
Behind
Face Plate
4
NEEDLES
The size needle to be used
is
determined
by
the
size of the thread which must pass freely through the
is
eye of the needle. Needle type P1628
recommended
for these Class P260 machines.
To Set the
With
clamping screw, shown in
Insert go making certain the
Fig.
Needle
machine in 11stop"
needle
needle,
4.
Then
up into
faces securely
position loosen
Fig.
4.
that
toward
needle
the
bar
as
long continuous groove of
the
operator
tighten clamping screw.
for
as
needle
as
it
shown
will
in
NE E
DLE CLAMPING SCREW
Fig.
4.
Setting
TWIRL
TOWARD
1~1:--
the Needle
HOLD THIS
END
/
OVER
YOU
-
LONG GROOVE
THREAD
Use
only left
left or right
To determine
Fig.
5.
Then twirl thread over toward you. Thread
left
twist
if
twist
strands
twist
thread
thread
the
in
twist,
tighten; right
in
the
the bobbin.
hold thread
twist
needle
if
wind.
UPPER THREADING
Pass
needle points i correct
ndicated
threading of
Draw approximately two
the
eye
of
thread
in
from
Fig.
6.
needle.
inches
the
needle with which to
the
unwinder through all
Inset
in
of thread through
NOTE: Threading of upper thread retainer
Style P260-9/109 In place of eyelet, in
Fig.
6. Lower thread retainer,
Fig.
is
6,
Style P260-9/109.
and either
as
shown
in is
strands
Fig.
start
used
6,
shows
sewing.
only
un·
shown in inset
is
not
used
on
on
Fi • 5.
Fig.
Determining Twi
Threadin
th
e Needle
6.
Threading
the
st
of
Thread
g
Machine
5
LOWER THREADING
Bobbin Removal
Open
front end
case
as
Release
shown
To
Wind
Place
in
Fig.
Pass
points
shown
in
9.
indicated
latch
Fig.
the
bobbin
thread
in
Fig.
and bobbin
8.
Bobbin
on
from
in
around bobbin a few
of
cylinder
7.
wi
bobbin winder
the
unwinder through threading
Fig.
9.
times.
bed and remove bobbin
II
drop
out
of
case,
as
Wind
spindle,
thread
as
shown
clockwise
Push
bobbin winder lever toward rear, bringing .,ulley into winder will
contact
with machine
automatically
release
Adjustment for uneven winding loosening thread
correct
thread
guide
setting
guide
forward or backward,
is
obtained,
screw,
Adiusting Bobbin Winder
Bobbin winder against To loosen
machine driving
adjust,
adjusting
required. Then
pulley,
place
bobbin winder
screw,
securely
Fig
belt
Fig.
tighten adjusting
belt.
when bobbin
can
Fig.
as
tighten
guide
. 9, should
when winding
in
winding
9, and move
its
The bobbin
is
full.
be
made by
9, and moving
required.
When
screw.
press
firmly
the
bobbin.
position,
pulley
as
screw.
OPEN
LAT
PULL
BIN CAS
CH
E
Fig.
LATCH
7. Remo
Fig
ving Bob
AND
BOBBIN
. 8. Removing Bobbin Fig. 9. Winding the Bobbin
bin Ca
WILL
se
DROP
OUT
BOBBIN WINDE
R
LEV
ER
--
AD
J USTING
CR
EW PULL EY
S
AND BOB FROM SHUTTLE
REL EASE
6
~:--t/l.i
'::lh~
PULL THRE
INTO UNDER TENSION SPRING
SLOT
AD
AND
THREAD
PULL UP
INTO POSITION FINGER
Fig. 10. Re
Threading Bobbin
Hold bobbin
tion shown
place
bobbin into
Pull
thread into
11. Then
up
placing Bobbin
Case
so
that thread will unwind
in
Fig.
10. Hold bobbin
case.
slot
and under
into position finger,
case
tension
as
shown Draw approximately two inches of thread with which to
Bobbin
While holding latch open, stud of bobbin latch and
Case
press
start
the sewing.
Replacement
case
holder,
bobbin
case
place
(see
bobbin
Fig. 13).
back until latch
groove of stud.
Fig. 11.
in
the
as
shown and
spring,
in
Fig. 12.
from
case
Release
engages
Threading
direc·
Fig.
bobbin
on
Bobbin
Case
HOLD
LATCH OPEN. PLACE BOBBIN STUD
CASE
.
Fig.
Fig.
ON
13.
Replacing Bobbin
12. Thre
adin
g Bobbin
RELEASE
AND
PRESS BACK.
Case
INCREASE
Cas
e
STUD
LATCH
THREAD
while still sufficient to material.
Needle
Tension
in front of
Bobbin Thread
Tens
bobb(n
TENSION
Tension of thread should be
set
the
Thread Tension
on
needle
tension
Tens
ion on bobbin thread
case
tension spring,
thread
discs,
ion
as
is
shown
is
as
shown
as
light
stitch
correctly
regulated
in
Fig.
regulated
in
as
by
14.
by
Fig.
possible
in
the
thumb nut
screw
on
15.
Fig.
14. Adjus
Fig. 15.
7
ting
Adjusting
DECREASE
Needle
Thread
Ten
DECREASE
Bobbin Thread Tens i
s ion
on
ARM
SHAFT
STOP MOTION ADJUSTMENTS
ARM
SHAFT
Fig. 16. Stop Motion
LOCK HUT
Adjustment
1/32 INCH
--
ADJUSTER
(Left Vlow)
Before any
mechanism,
Check:
There
in
the
arm
Adjustment:
To
adjust
Fig.
16, and support rear bushing outward by turning support screw, in a
clockwise
set
screwand
Check
a minimum and
adjustment
check
should
be
shaft,
shown
end
play,
direction.
support
adjustment
there
is
made on
the
adjustment
a minimum of play without binding
in
Fig. 16.
loosen rear bushing
screw
screw
to
is
lock nut,
Then
securely
lock nut.
be
certain
no binding.
of
that
the
stop
the
arm
set
Fig.
tighten
end play
motion
shaft.
screw,
17.
Move Fig. bushing
is
17,
at
Fig.
17. Stop Motion Adjus
PAWL
IN
COAST POSITION
Fig.
18. B
ell
Crank
tment
(Ri
ght
in
"Coast" Pos ition
View)
RUN POSITION
STARTING
Check:
Depress
position.
Fig.
17, unti I bell crank pawl moves back into
or
"coast"
At
1/32
the
high
as
indicated
Adjustment:
Loosen
hinge
juster justment required to replace
LEVER
starting
Turn machine pulley over,
position
this
position,
inch
clearance
point
in
starting screw in or out
hinge
shown
screw
lever
to
in
bell
there
between
of
camming
Fig. 17.
rod
adjuster
in
Fig.
one
full turn for each 1/ 32 inch of ad­obtain and
tighten
engage
crank,
should be approximately
the
surface
16.
Turn
the
correct
lock nut.
machine
as
as
shown in Fig. 18.
interlocking
on machine
lock nut and remove
starting
clearance.
in
"run"
indicated
the
arm
pulley,
rod ad-
Then
in
first
and
8
STARTING
Check:
When
correctly
19,
should
bell
crank
1/
32
inch
arm
is
depressed.
Adjustment:
LEVER
limit
and
past
ARM
set,
the clearan
the
bell crank
the
"run"
STOP
the
start
not
ch when th e st
ing
leve
r arm stop,
ce
betw
een
th e st
pawl to appr oximately
art
ing l
Fig
art
ever
.
ing
Loosen
arm
stop
tighten
arm
screw
lock nut.
stop
screw
unti I proper c
loc k
learan
nut, Fig
ce is
. 19, and tu
atta
ined. Then
rn
ENGAGING
Check:
When
"V-belt"
of
idler
pulley
as
shown
pressed
to
ARM
the
will
in
"run"
Fig.
19.
Adjusting
engaging rise
approximately 1132 inch off bottom
and up
Fig.
20, when
arm
the
the
is
properly
side
starting
Arm
of
Stop
the
driving
lever
position.
adjusted,
pulley,
arm
is
the
de-
Adjustment:
With
engaging loosen arm Then
engaging
closer
securely
NOTE: cient ment should
to
Tension
to
operate
is
made
be
adjustment.
Fig.
20.
Engaging Arm Adjustment
9
arm,
arm
or
farther
tighten
by
made
Fig.
pinch
from
pinch
on
"V-belt"
machine
raising
in
connection
20,
in
"running"
screw
and move
starting
screw.
should
without
slippage.
or lowering
with
cap
as
be
the
engaging
position, engaging required.
just
suffi·
Adjust-
motor,
and
arm
STOP
MOTION ADJUSTMENTS
(
CONNECTING ROD }
ROCK PINCH
SUPPORT
I
SHAFT
SCREW
SET SCREW
(continued)
Fi
g.
___ /
21.
Adjusting tho
Tripping
Link
ogo
I
r
--------
1
1-------·
1
I
__
..
,
--
- -
- ----
TRIPPING
Check:
The
tripping rock
positioned
Adjustment:
Loosen
or
out
as
for binding.
ROCK
SHAFT
to
hold tripping rock
set
screw,
req.~ired.
SUPPORT
shaft
Fig. 21, and
Then
tighten
support,
shaft without
set
Fig
. 21, should
position
screw
binding.
support
and
recheck
be
in
TRIPPING
Check:
When
tripping
crank far
enough
position.
Adjustment:
Turn
of
rock shaft wrench. as
a lever, move rock face inch
above
in
Fig.
NOTE:
linkage than outlined for mach i
TIMING
point
point,
pawl
machine
shaft
pinch
With
plate)
21. Then The
one
TRIPPING
LINKAGE
should
for
screw,
raising
top
mechanism
tripping
of
as
be lifted
the
interlocking
pulley
lever
wrench
of
"coast"
securely
procedure
tripping shown
rests
Fig.
bell
point
nes
POINTS
rock
in
out
over
toward
on tr ipping point.
21,
using
(inserted
shaft
connection
crank
notch
tighten
for
on
machines wh
is the same
which
shaft
Figs.
22 or 24,
of
notches
arm
to
operator
5/ 32 inch
in
pinch screw)
pawl
approximately
in
bell crank,
pinch screw.
adjusting
have
one tripping
lever
rests
the
in
bell
move into
forward (toward
ich
as
the
until
Loosen
hex-head
as
the
tripping
have
procedu
"stop"
acting
shown
point.
on
bell
crank
point
rock
.010
more
re
Check:
Tr ipping poi
Fig.
22.
Lev
er
on
Tripping
Point
should back as
arm
against
soon
prior
be
set
as
the
to
going into
10
nt
so
the
notch
or
points
that
cammi
on
on
undersi de of feed cam
the int
stop
erlocking
ng
surface
pulley passe s the inte
posit
ion
of
arm
mach
wi
II
ine
pulley
rlocking
drop
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