UnionSpecial FS322, CS132, CS122 Engineer's Manual
•
Finest Quality
2-3
NEEDLE
FLAT
BED
COVERSEAM
MACHINE
FS300
SERIES
2-3
NEEDLE
CYLINDER
BED
COVERSEAM
MACHINE
CS100
SERIES
ENGINEER'S
MANUAL
EN9424
REV. 03/19/99
•
PREFACE
This Engineer's Manual
is
written
tor
the technical personnel
who
are responsible
for
the service and maintenance
of
the machine.
This manual describes
"Standard Adjustment", "Adjustment Proceduresft,
~Results
of
lmproperAdjustment~,
and other
important information which are
not
covered
by
the
Instruction Manual.
It
is
advisable to use the relevant Instruction Manual and Parts List together with this Engineer's Manual when carrying
out
the
maintenance
oi
these
machines.
This manual gives the
"Standard adjustment" on the former page under which the most basic adjustment value and on
the latter page
the
"Results
of
improper adjustment" under which errors and troubles arise .
CONTENTS
1.
SPECIFICATIONS
...•.............•••......•....•.•.•••..........•..........•...••.•••......••••.•••••••••••••••••••••.•••••••••••.••••.•••••••••••••••..•••••.
4
2.
MOTOR
PULLEY
AND
BELT
.••••••••.••...•.•••••.•••..........•..•.••.......•
; .............................................................................. 5
3.
MODEL
NUMBERING
SYSTEM
............................................................................................................................ 6
4.
STANDARD
ADJUSTMENT
.•••••••...••••••.....••..•••••••••••••.••••...••.•••....•.•••....•.........••..•..........•.•....••••••......•.•...•....•......•
10
{l)FS300 ...................................................................................................................................................................................................
10
1)
NEEDlE
FEED
TIMING
.......................................................................................................................................................................
10
2)ADJUSTING
THE
TIMING
RELATION
BETWEEN
tHE
NEEDLE
BAR
AND
LOOPER
(SYNCHRONIZATION)
.................•.••.................••....
10
2)'SVNCHRONIZATJON
.........................................................................................................................................................................
12
3)
RETURNING
AMOUNT
OF
THE
LOOPER
............................................................................................................................................
14
4)HEIGHTOFTHENEEDLEBAR
............................................................................................................................................................
14
S)
Cl£ARANCE
BETWEEN
THE
LOOPER
AND
NEEDLE
..........................................................................................................................
16
6)ADJUSTINGAMOUNTOFTHELOOPER-AVOID ...............................................................................................................................
16
7)
POSmONOFTHENEEDLEGUARD
...................................................................................................................................................
16
8)
POSITION
OF
THE
FEED
DOG ...........................................................................................................................................................
18
9)
SPREADER
......................................................................................................................................................................................... 20
10)
LOOPER
THREAD
CAM .................................................................................................................................................................... 22
II)
POSITION
OF
THE
PRESSER
BAR
....................................................................................................................................................... 22
12)
POStnON
OFTHENEEDLETHREAD
TENSION
RELEASE
(WITHOUT
THREAD
TRIMMER)
.....................................................................
24
13)
POSlJION
AND
HEIGHT
OF
THE
PRESSER
FOOT
............................................................................................................................... 24
14)
POSinONOFTHETHREADGUIDE
....................................................................................................................................................
24
<2>CS100 .................................................................................................................................................................................................. 28
1)
NEEDLE
FEED
TIMING
.......................................................................................................................................................................
28
2)
ADJUSTING
THE
TIMING
OF
THE
NEEDLE
BAR
AND
LOOPER(SYNCHRONIZATION)
....................................................................... 28
2)
'SNYCHRONIZING
LOOPER
AND
NEEDLE
MOTIONS
....................................................................................................................... 30
3)
RETURNING
AMOUNT OF
THE
LOOPER
................................................................................................................................................ 32
4)
HBGHT
OF
THE
NEEDLE
BAR
............................................................................................................................................................
34
5)
POSmON
OF
THE
NEEDLE
GUARD
................................................................................................................................................... 34
6)
CLEARANCE
BETWEEN
THE
LOOPER
AND
NEEDLE
..........................................................................................................................
36
7)
ADJUSDNG
AMOUNT
OF
THE
LOOPER-AVOID
............................................................................................................ : .................. 36
8)
POSmON
OF
THE
FEED
DOG ...........................................................................................................................................................
38
9)
SPREADER
......................................................................................................................................................................................... 40
10)
LOOPERTHREADCAM
....................................................................................................................................................................
42
11)
LOOPER
THREAD
WRAP-UP
PREVENTING
CAM .............................................................................................................................. 42
12)
POSITION
OF
THE
PRESSER
BAR
....................................................................................................................................................... 44
13)
POSITION
OF
THE
NEEDLE
THREAD
TENSION
RELEASE
(WITHOUT
THREAD
TRIMMER)
..................................................................... 44
14)
POSITION
AND
HEIGHT
OF
THE
PRESSER
FOOT
...............................................................................................................................
44
15)
POSITION
OF
THE
THREAD
GUIDE
....................................................................................................................................................
46
4.
OlHER
PRECAUTIONS
...................................................................................................................................... 47
(1)
POINTS
TO
WHICH
LOCKTTTE
IS
APPLIED
.............................................................................................................................................
47
5.
TROUBLES
AND
CORRECTIVE
MEASURES
....................................................................................................... 49
•
3
1.
SPECIFICATIONS
FS300 Series
FS322
I
FS322
I
FS332
I
FS332
Sewing
speed
~
With Puller
6000
R.P
.M.
6,500 S.P.M.
(Max) left
or
right hand undertrimmer 5500
Stitch length
1.6to
2.8 mm
No.
of
needle
2
3 2
I
3
Needle gauge
3.2,
4.0 5.6, 6.4, 4.8 3.2, 4.0
I
4.8, 5.6, 6.4
Top covering
Without
With
Oiff.
feed
ratio Gathering stitch 1
:1.5
Stretching stitch 1
:0.6
Needle
UY128GBS
#65/025 to 90/036
Presserfoot lift
B.Omm
Lubricating oil UNION SPECIAL Designated oil (Part No. 28604R)
CS1
00
Series
CS122
I
CS122
I
CS132
I
CS132
Sewing
speed
~
With Puller 6000 R.P.M. 6,500 S.P.M. {Max) Undertrimmer 5500 R.P.M.
Stitch
lenQth
1.6to3.2mm
No.
of needle 2 3
2
3
Needle gauge 3.2,
4.0, 4.8 5.6, 6.4 3.2, 4.0, 4.8 5.6, 6.4
Top
covering
Without With
Diff.
feed
ratio
Gathering stitch 1
:1.5
Stretching stitch 1 :0.6
Needle UY12t GJS #55/022 to #90/036
Presserfoot lift
B.Omm
Lubricatina
oil
UNION SPECIAL Designated
oii(PM
No. 28604R)
'*
Depending
on
Devices
•
4
•
2. MOTOR PULLEY AND
BELT
FS300 Series
50
Hz
.
so
Hz
Motor pulley
V belt (inch)
Motor
pulley
V belt (inch)
Sewing speed {s.p.m.)
Fully-
Semi-
Fully-
Semi-
outer dia. (mm)
s!bmerged
submerged
outer dia. (mm) submerged
submerged
type type type
type
6,500
140 35
120 35
6,000
125
I
35
105
35
5,500 110 35 90
34
5,000
100
34 85 34
4,500 90 34 75 34
4,000
80
34 70 34
3,500 70 34 60 33
1) Use a UNION SPECIAL clutch
motor
{400W).
2) Use
an
M type V belt.
3)
The table shows the sewing speeds obtained
by
the use
of
motor
pulleys with different diameters and V belts
with different lengths.
4) Note that the effective diameter
of
the pulley
of
the machine head
i~
54mn
CS100
Series
50
Hz
60Hz
Motor pulley v belt (inch)
Motor pulley V bell
(inch)
Sewing speed (s.p.m.)
Fully- Semi-
. Fully- Semi-
outer dia. (mm)
submerged
submerged
outer dia. (mm)
subrre'lJE'f
submerged
type type type
type
6,500 145 43
40
120
41
38
6,000
135
I
43 40 110
41
38
5,500
120
I
41
38 100
41
38
5,000
110
I
41
38
90
39
37
4,500
95
I
41
38 80
39 37
I
4.000
85
39
37 70
39 37
3,500
75
39
37
60
38
35
1)
Use a
UNION
SPECIAL clutch
motor
(400W).
2)
Use
an
M type V belt.
3)
The table shows the sewing speeds obtained
by
the use of
motor
pulleys with different diameters and V belts
with different lengths.
4) Note that the effective diameter of the pulley
of
the machine head is 57.5 mm.
5
•
3. MODEL NUMBERING SYSTEM
CS100 SERIES ORDERING INFORMATION
Stitch type Sub-class
Number
of
needles Needle
spacing
Devices
2 = Bot!om coverslitch
(describes typical application)
2
"'
Two
needle machine
32"'
3.2
mm
CC'
= Chain cutter
3 =Top & bottom coverstitch
c· = Col!arette
3 "' Three needle machine
40=4.0mm
MD'
= Metering device
E'
=Elastic 48 = 4.8
mm
TC'
"'Tape
culler
Basic
frame style
H":
Hemming
56"'
5.6
mm
TF'
= Binding feed device
CS
= Cylinder
bed
K'
= Coverseam
60=6.0mm
UT" = Thread trimmer
FS
=Flat
bed
L •
=lap
seam
64
= 6.4
mm
'1-9
= Variety
or
devices
U'
= Universal
'00·99
" Variety
ol
sub-class
~
l
I
I I
I
FS332C01-3D56/TC4/
I
l
Generation Feed type
Stllch tongue
1 =First 2 = Dlflerential
Represents
the
shape
of
the
throat plate
2 =Second 5 = Differential & puller
stitc-h
tongue.
3
=Third
A = For short stitch length
A
c;:=-
B =
For
medium
stitc-h
length
Bt:='"
C =
For
long stitch length
c c::::7'"
0
=
For
all
stitch lengths, collaretle,
D='"
coverseam & elastic applications
•
CS100 SERIES ORDERING INFORMATION
SUtch
type
Sob-class
Number
of
needles
Needle
spacing
Devices
2 = Bottom coverstitch (describes typical application) 2
=Two
needle machine
32"'
3.2
mm
cc·
"' Chain culler
3
=Top
& boHom coverstitch
C' = Co1larette
3 = Three needle machine
40=
4.0 mm
MD'=
Metering device
E'
=Elastic
48·,
4.8 mm
TC'
=Tape
culler
Basic
frame style
H'
=Hemming
56=
5.6 mm
TF'
= Binding feed device
CS
= Cylinder bed
K'
= Coverseam
60=6.0mm
UT"
= Thread trimmer
FS
=Flat
bed
L'
=Lap
seam 64 = 6.4 mm
'1·9
= Variety of devices
U'
=Universal
'00-99
=Variety
or
sub-class
.
~I
I
I
I
I
I
l
I
CS132H01-2C32/UT2/
I
Generation Feed type
Stitch
tongue
1
=First
2 = Differential
Represents the shape
of
the throat plate
2
=Second
5 = Differential & puller stitch tongue.
3
=Third
A
"'
For short slilch length
A~
8
"'
For medium stitch length
Be?"
C
""
For long stitch length
c
=""
D = For all stitch lengths, collarelle,
D
t:::7
coverseam & elastic applications
FS300
Series
Code
Specification
Description of Sub-Class
C01
For Cellarette Basic style
E12 For elastic tape attaching Right hand fabric under trimmer and metering device (Upper side)
E41
For
elastic taoe attaching Elastic tape attaching with puller
and
metering device (Lower side) (with endless rubber)
H01
For
hemming Basic style with hem guide
L01
For
lap seam Basic style
L21
For
l_ap_
seam For the top sleeve of
knit
fabric
C$100
Series
Code Soecification Description of Sub-Class
E11
For Elastic tape attaching Right hand fabric
under
trimmer, (Preclosed Elastic)
E12 For elastic tape attaching Fabric under trimmer,
and
metering device (Upper side)
H01
For Hemming Basic style with hem guide
-
H11
For Hemming With cloth puller
H21
For
Hemming Lett hand fabric under trimmer
K01
Covering With standard fixed seam guide, light weight fabric
K02 Covering With adjustable seam guide for medium to heavy-weight fabrics
K11
Coverseaming With special fold over seam guide
•
8
Under-bed thread
trimming
device
Electromagnetic type
Pneumatic
type
Top
Needle Needle
Top
Thread
Needle
covering
Thread
•~o
•~o
Code
For
use on model
thread
Auto-lifter
_,
wiper
covering
•
Auto-lifter
trimmer
wiper
thread
trimmer
(Mecha- (Pneu-
thread
trimmer
nieal) matie)
trimmer
UT1
CS122
0 0
0
UT2
C$132
0
0
0
UT3 CS122
0 0
0
UT4 CS122
0 0
0
UTS
C$132
0
0 0
UT10 FS322
0
0
0
UT11 FS332
0 0 0
UT12
FS322
0 0
UT13
F$332
0
0
0
Elastic tape metering
device
Code
Description
For
use on model
MD1
Metering device (upper side) Electric single stage
FS322, FS332, CS122,
C$132
MD2 Metering device (upper side)
Electric
two
stage
F$322,
F$332,
CS122,
CS13~
MD3
Metering device
(lower side) Electric single stage FS322, FS332, C$122, CS132
MD4
Metering device (lower side) Electric
two
stage
FS322, FS332, C$122,
C$132
Automatic tape feeding
device
Code
I
Description
For
use on model
TF1
Automatic
tape feeding device (upper side)
For
MD1,
MD2
TF2
Automatic tape feeding device (lower side)
ForMD3,
M04
Under-bed thread
trimming
device
•
Code
Description
For
use on model
CC1
Pneumatic
type
chain-off
thread
cutter l Mounted
horizontal
venturi
suction
FS322,FS332
Cloth
puller
Code
Description
For
use on model
PL1
Cloth puller
FS322, FS332, CS122, CS132
>
9
•
4. STANDARD ADJUSTMENT
(1) FS300
Standard Adjustment
1) Needle feed timing
.
First screw
(A)
in
operating direction on double eccentric
(B)
of feed drive assembly must
be
straight
up,
when the needle bar is at bottom of stroke.
r--
I~
i\
B
1--B
'
/
A-
il
~
f--A
-
1---
0
2)
Adjusting the timing relation between the needle bar and looper
(synchronization): Without gauges
When the blade point
of
the looper moves
to
the left
in
the rear of the needle
and
to
th_e
right
in
front of
the
needle, align the upper end of the eyelet of the left needle with the lower
face
of the
looper
so
that the distance between A and
B.
the side of the left needle to the blade point of the
looper,
should
be
equal.
4J'
A=B
A
B
Vca=
/ca:::
'¢:J
Mov:e
to the left
¢Move
to
the
right
I
Looper
v
Looper
tl--
Left needle
.
Allgn~L
Left
needle
.0.
10
.
•
Adjustment Procedures
Remove
top
cover,
oil
reservoir cover, gasket
and
cloth plate.
Loosen screws (C) of sprocket (D).
• Rotate lower
main
shaft
in
operating direction clockwise, until
the
first screw (A) on double eccentric (B) is straight up.
•
Holding
pulley
to
prevent
it
from turning,
rotate
handwheel
of
upper
main
shaft
until
needles
are
at
top of their
stroke.
•
Torque
screw
(C)
to
45-46
in.
lbs. (5.2-5.4Nm).
•
Replace
top
cover,
oil
resevoir
cover,
gasket
and
cloth
plate.
Note:
Earlier machines
have
(4)
screws.
• Turn handwheel in operating direction until bottom
of
looper is
even with tap of needle eye. Note dimension (A)
Continue
turning
handwheel
in
operating direction until bottom
of
looper
is
even
w~h
top of needle
sye
when
looper
is
in
front
of
needle.
Note dimension (8)
•
If
(A)
is
greater than (8)
-loosen
(C)
on sprocket
(D).
-Turn sprocket
(D)
in
operating direction
-Tighten
screws
(C)
-Repeat
above
two steps until (A)"' (8)
•
If
(A)
less than
(B)
-loosen
screws
(C)
on
sprocket
(D)
-Turn sprocket
(D)
in
reverse direction
-Tighten screws
(C)
-Repeat sbove
two
s1eps
until (A)"'
(B)
Results
of
Improper Adjustment
• Needle breakage
• Looper missing needle thread
•
If
the timing
is
not correct, skip
st~ching
may
occur.
11
FS300
Standard Adjustment
2)' Synchronization
• Rotate handwheel
in
operating direction until
pin
in
looper holder contacts gauge plate.
• Reposition needle bar as required to set pointer
of
indicator
gauge
at
"0~.
• Rotate handwheel in reverse direction until
pin
in looper holder again makes contact with gauge plate.
• A variation
of
(1) graduation
on
scale is permissible .
•
12
•
Adjustment Procedures
o Rotate handwheel in operating direction until pin (9 contacts
gauge plate
e .
o Loosen screw (!) in needle bar connection & position needle
bar
8 as required
to
set pointer 0 of indicator gauge 0 at
~a~
tighten screw (!)lightly.
o Rotate handwheel
in
reverse direction until pin 8 makes
contact with gauge plate
0 .
Note reading on gauge. A variation of
(1)
graduation
on
scale
is permissible.
To adjust:
o Loosen screws
0
on
looper drive sprocket
€t
.
o If reading is above
~a"
tum sprocket towards operator.
o
If reading is below "0" tum sprocket away from operator.
o snug screws
0 .
o
Continue
to
check
& adjust in both operating & reverse·
directions until pointer 0 of indicator gauge
4D
comes within
(1) graduation
on
scale when turning handwheel
in
either
direction.
o Tighten screws
0.
o Torque needle bar screw
(9
to 20 inllbs.
CD
Results of Improper Adjustment
o Skipped stitches
o
Improper chaining
13
•
FS300
Standard
Adjustment
3) Returning
amount
of
the
looper
When the looper is
in
the extreme right position,
the
distance between the blade point
of
the looper and the
center of the right needle is 4.4 ±
0.1
mm.
}
/Right
needle
V Looper
c=
I
-+-+---
4.4 ± 0.1
mm
4) Height
of
the
needle
bar
When the looper moves
to
the left and the blade point of the looper comes out from the left side of the left
needle
by 0.7 to 1.0 mm, the lower face of the looper aligns with the upper end
of
the eyelet
of
the left
needle .
c
-I"'-J-0.7to
1.0
mm
I/
Looper
~of---
Align/
Lett
needle
14
•
Adjustment
Procedures
o Loosen the looper base setscrew
0 and adjust the returning
amount of the
lOoper.
(Use
a 5/32
inch
hexagonal wrench.)
o Loosen the needle bar holder screw 0
and
adjust the height
of
the needle bar.
(Caution)
After
the adjustment,
check
that
the
direction
of
the
needle
clamp
is
correct
and
the
respective
needles enter the center
of
the
holes
of
the
throat
plate.
@
0
\\
0
0
mill
0
0
0 0
Results
of
Improper
Adjustment
o If the returning amount is large,
skipping stitch and
tangling stitch
may occur and the range of the
thickness of the cloth to be sewn is
reduced.
o If the returning amount is small,
skipping stitch and tangling stitch
may
occur.
o If the distance of C is large, skip
stitching and tangling stitch may
occur.
o If the distance of C is small, skip
stitching and tangling stitch may
occur.
o
If
defective stitch occurs with the
wooly
nylon thread,
make
the
distance C as small as possible.
15
•
FS300
Standard
Adjustment
5) Clearance between
the
looper
and
needle
Clearance between the
blade
point
of
the looper
and
the grooves
of
the rightlleft needles is 0 to 0.05 mm.
(Clearance
of
the
middle needle becomes larger a liHie.)
Otoo.os
mm
VRight
needle
Looper
j
j
===;~/~::::-;;::::~;.
;;;;
Oto0.05mm4
0
Needle
Top end
of
looper
6)
Adjusting
amount
of
the looper-avoid
When the needle descends, the top point
of
the needle touches the
back
of
the looper
at
the position of
213
from the
upper
side
of
the looper.
Needle
desce:tlr
~
i
>13
Back
of
looper
t
113
7) Position
of
the needle
guard
<D
Rear
needle
guard
o
The
height
of
the rear needle guard is in the position
that
the rear needle guard is 1.2
mm
above the top
of
the
needle
when
the
looper
moves
to the left as shown in the figure.
o The longitudinal position
and
inclination
of
the rear needle guard are in the position that
when
the right
side of the respective
needles comes to the blade top
of
the looper, the top
of
the
needle slightly touches
the rear
needle
guard.
<?
~
~
!.:.;
==~t.2mm
guard Slightly
touch
® Moving needle guard
16
o When
the
looper
advances, the clearance between the needle
and
the moving needle
guard
is
0.05 to
0.13mm.
==J~;;:~=t
0.05to0.13mm
•
Adjustment
Procedures
o Loosen the looper base setscrew 0 and adjust by moving
the looper base back and forth.
o Loosen the two screws G and
adjust by rotating the eccentric pin
8.
0 Amount of the avoid increases in
the direction
of+.
o Amount
of
the avoid reduces
in
the
direction
of-.
(Caution)
After
the
adjustment,
check
again
the
clearance
between
the
blade
point
and
the
groove
of
the needle.
o Loosen the
screwO
and adjust the-
height and inclination of the
r~ar
needle guard
0.
Loosen the screw
G'!>
and
adjust
the
longitudinal
position
of
the rear needle guard
0.
(Caution)
Check
that
the
rear
needle
guard
does
not
break
the
loop
of
the
needle
thread
by
touching
the
groove
of
the needle.
o Loosen the screw
Gt
and
adjust the
clearance between the moving
needle guard
fD
and the needle.
(Caution)
Check
that
the needle
is
never
caught
between
the
moving
needle guard
and rear needle
guard
in
any case.
Results
of
Improper
Adjustment
o
If
the clearance is too large, the loop
of the needle thread is not scooped
and the
back
of
the
looper
hits
strongly the top point of the needle
which causes the damage
of
the
needle
point
o
If
the
clearance
is
too
small,
skipping stitch will· occur due to the
damage
otthe
tip
of
the looper, the
needle breakage, and the large
clearance between the back
ot
the
.
looper and the needle.
o If the amount
of
the avoid is large,
the clearance
of
the
back
of
the
looper and the needle becomes
large,
and
skipping
stitch
and
tangling stitch
will occur.
o If the amount of the avoid is small,
the needle hits strongly the back of
the looper. This causes the damage
of the
needle
point,
the needle
breakage and the damage on the
back
of
the looper.
o
If
the returning
amount
is large,
skipping stitch and tangling stitch
occur,
and
the
range
of
the
thickness
of
the cloth to be sewn is
reduced .
o If the returning
amount
is small,
skipping stitch and tangling stitch
occur.
17
FS300
Standard Adjustment
8} Position
of
the
feed
dog
o
The
clearance of the left/right sides of the feed
dog
should
be
equal
in
the slots
of
the throat plate.
o
At
the maximum travel, the clearance of the main feed dog and differential feed
dog
is equal to
A=
A', 8
:8'.
o The height of the teed dog is 1.0 mm at the top of their stroke.
o The
tilt of the feed dog is parallel
to
the throat plate when the needle bar is at the highest position.
1.0mm
•
18
•
Adjustment
Procedures
Open the cover located at the rear side of the needle entry.
o Adjust
the
longitudinal position of the main feed dog after
loosening the
nut@) and rotating the eccentric nut
ID.
o Adjust the longitudinal position of the differential feed dog
after loosening the nut
Q)
and rotating the eccentric nut
0.
o Adjust the inclination of the feed dog after loosening the screw
4D
and rotating the eccentric shaft inside with a slit-screwdriver
through the hole
~.
o Loosen the screw
G>
and adjust the height of the main feed
dog@).
o Loosen the screw
§)
and adjust the height of the differentia!
feed dog
@1.
Results
of
Improper
Adjustment
o If the letvright positions of the feed
dog are
incorrect,
the left/right sides
and the throat plate
will wear out.
o Heating and abnormal noise will
be
produced.
o The feed components
wiH
wear out
early. And,
the looseness, bending
and
abnormal
noise
will
be
produced.
o If the inclination
of
the feed dog
is
raised toward you, starting
of
the
workpiece
will
be
affected.
o If the inclination of the feed dog is
towered toward you,
it
may
cause
the
irregular
stitching
and
puckering .
o
If
the position of the feed dog
is
high,
it
causes
the
return
feed,
skip
stitching and defective chain-off.
o If the main feed dog, differential
feed
dog and throat plate come
in
contact
each
other,
it
will
cause
the
breakage.
o
If the position
of
the
fe:ed
dog is low,
the
stitch
length
becomes
short
when the sewing is finished.
19
•
FS300
Standard
Adjustment
9)
Spreader
(!)Timing
Descend.[!,
Highest
point
2.5 ±
0.1
mm
c~~~~~g~~~~
.:::0
Return
Just
when
the
needle descends 2.5
mm
from
the
highest point of the needle bar, the spreader
begins to return from its extreme left position.
®Position
of spreader
II
5.5 ±
0.1
mm
..,.-JIHI
~
11.5
:±
0.2
mm
(10.8 ±
0.2
mm
throat
plate for 4.8 mm
or
more
needle gauge)
Left needle
0.3
to
~j=ii::;:f~i,~o~o'::;:;/
0.5
mm
f
@Fixing
spreader thread guide
Spreader
Extreme
right
~Return
0.4to
\
o.a
mm
Top
blade
should
be
between left
side
and
middle
of
the
groove.
Show
spreader at
extreme
right
position
when
setting
height
®Needle
clamp spreader thread guide
Fixing
spreader
thread
guide
Needle
clamp
spreader
thread
guide
20
@Stroke
•..
Direction
o1
cloth feeding
fl..
~ l';"'''
,
,,
~~--.--..~
,,
19±
0.1
mm
o The height is 11.5 ±
0.2
mm
(4.0 + 3.2
gauge).
(10.8 ± 0.2
mm
for4.8
mm,
5.6
mm.
and
6.4
mm
gauges.
o When the spreader is in the extreme left position,
the distance between the center of the
left needle
and the top blade of the spreader is
5.5
± 0.1
mm.
o When the
spreader
returns
to
the
right,
the
clearance between the spreader and the left needle
is
0.3
to
0.5 mm.
o When the spreader
is in
~he
extreme right position,
the top
blade of the spreader
__
should be between
left side and middle
of·
the spreader thread guide
groove.
o The height
is
0.4 to 0.8 mm from the surface
of
the
spreader.
o When the needle bar is in the lowest position, the
clearance between the needle
clamp spreader
thread guide and the
upper
face
of
the fixing '
spreader thread guide is 4.0 ± 0.5 mm.
o The center of the
hole of the thread guide aligns
with the left side of the fixing spreader thread guide
groove.
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