Zoje ZJ24028-1, ZJ24028-2 User Manual
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81
.
INSTRUCTION
MANUAL
FOR
POST-BED
This manual is prepared to permit the sewing machine to be
This machine is
leather works.
Being
eq
uipped with spring
type thread take-up provides perfect
post-bed
You
can either select
industrial sewing machine suitab
1-n
.eedle or 2-oeedle machine accordi
return
reverse lever
uoif
omed
rype
stitching.
- i
NDEX-
feed mechanism opener
IN
DUSTRIAL SEWING
used
efficiently and for highest performance.
le
for sewing sboes, bags, caps and general
og
to your
type
type
vertical hook, and slide
MACHINE
of
works.
Specification
Main
parts
Preparation f
L
1).
Place
2)
. How
3).
How
4). How
5). How to
6). !low
7).
How
8). How to mount the vibration
U. Preparation f
I). Selection
2). How
3
).
How
4
).
How to wind
5).
How to adjust the bobbin winder asscmbly
6)
.
How
m.
Bow
1).
2).
...................
name
of
machine
or
installation
of
installation
to
mount the machine head
to
mount the motor ..
to
COillleet
moun
to
mount
to
mount
to
to
lead the upper thread
to place
to operate
Starting
Sewing over
the
t the bobbin winder assembly
and
adjust
the
oil
or
operation
of
thread
attach the oc:edle
the
lower thread on the bobbin ...
the
bobbin into the hook
.....
to
sewing
...............
.....
...................................................................................
head
of
machine ............................
of
machine
...........................................................
motor
lever and
th
e knee lifter mechanism .......
pan. .................................
preventi.r.~
..........................................................................................
..............
...... ......
.......
...
....
.................
...
................................................
.....
..
...............................
......................................
................................................. , ...............................
.......•....
..............
..............
......
...............
.........
....
......
.......
............ , ....................................
foot
pedal .••.•..•
rubber .....
......
...
.......
..........
...
...........
.............•.
...
.....
...
....
....
.........
.
.....................................•.................
..............
.........
...
......
.............
................
.......................................
...
.. :
.........
.....
...
...................
.........
.......... , .......
....
...
.......................................
.......
....
............................................
..............
.....
.....
.......
.....................
•••••.•.•.•.•.•..
.........
...
...................
.........
.......
........
...
......
....
....
...
...
.....
.....
...................................
..... .
.......•
••.•.•••••••... 4
...........................
...
....
.........
........
..........
.....
...
...................
....
..........
..................
...............
..
......
........................... l3
........................................
.........
.................
...
...
.........
.......
...
......
.....
......
....
..
.
. 2
3
.4
4
.4
.4
.4
. 5
6
6
7
7
. 7
8
9
IO
11
13
13
IV. Stitching adjustment
1
).
Adjustment
2).
Forward and Reverse stitching
3).
Adjustment
4). Adjustment
5). Propef ti
ming
6). Proper timing between the book and opener
7). Proper timing between the
V.
Cleaning
1).
Oeaning
2).
3). Grease ................
Lub
and
Lubrication
...........................
rication
...
....
.....
...
of
stitch length
of
thread !etlsion
of{ccd
dog height and pressure of
between the hook
.....................
....
...................
.........
.....
......................
...............
........
.................................................................................
........
...
........
....
.....
.......
.................
...
........................................................................
and
needle .
pre.sse;-
......
on
...
..............
materials
.....................................................
feed
dog
and
needle
...
....
..................................................
...
...............................................................
..
..................................................................
.....
......................................................
..........
........
....
......
..................
............................
.....
...............
.................................
....
.............
....
...
...
, .. ,
...................
......
........
.........
....
..
........
.......
.....
....
..
...
......
......
....
14
14
14
! 4
17
18
21
22
23
23
23
24
• Specification and ma
in parts name
of
machine head.
• sPECIFICATI
Sewing materials
Speed
... .
............
Nudle
...........
Nudle
Thread
Stitch lenglh .
bar stro
take
up
.......
Pres~cr
bar
stroke
Pre~
fool.
•........
ke
.•..
ON
...... Shoe
...
....
...... 33.4
.....
....
.••.•.
s,
Bags,
works.
.. 3000
..
RPM.
OP
x S
(13
5 x 5)
mm (1-5
Stide lype
0-Smm(0
8mm
1-Nudle
1-l'\eedlc(Ul6")RoUcr foot
2-Needle( l/4")
(51l
- 3/16")
6")
......
Caps
, and lealbcr
/16")
Roller foot
Usual
foot
Hook. ..
Stitch lenglh adjuslment... Dial regulatOr type
Reverse stitching......... .. . Spring rerum manual lacker
Post beigbt. .. .. . .
Lubrication
Oil circulation
Knee
Table.......
Moto
.......
....
....
•.................
.........
mecbanism...
.................
r..
.......
. . . . . . . . . . . . .
.........
..
. . . . . . .
Vertical book wilh opener
..
178mm(7")
Manu
two
......
. . . . . . . . . U:ver
..
al
oiling, provided wilh
oil reservoir
Auto roatic capillary action
wilh oil wicks
at
arm
system
~ON
"lype
Clutch motor(400W)
(I)
Spool pin
(2)
Oil
(';\
,.,
(4)
(5)
(6)
(7)
(8)
(
9)
(!0
(II)
(12)
(13)
reservo
Balance wheel
Stitch regulating dial
Reverse lever
Post
Hook
po51
Hook
po51
Hook shaft bracket
)
Slide plate
Nudle
RoUer
fOOl
Thread
ir
(right)
bolder
cover plate(back)
plate
guide (needle
bar
)
(14)
Needle
(15) Thread guide (needle bar bushing)
{1
6) Pressabor
(17) Face plaic
Thread tension regulator
(18)
(1
9)
Thread guide( ann)
(20)
Thread
(21)
Presser
Thread take
(
22)
(23)
Thread
Oil reservoir (lefi)
(24:
(25) Pre-tension
bar
take
regulating lhumb
retainer
2
up
lever guard
up
lever
screw
(1wo
Nee
dle Type)
• Main parts name
of
machine head
(i
} Spool
(2
)
(3) Balance
(4) S
(5) Reverse lever
(6)
(1)
(8) Hook
pi.o
O
il
reservolr(right) (10)
whee
l
ti
tch
regulating dial (12)
Post
Hook
post cover plate (lower)
post cover
plate (
upper}
(9)
(I I)
(13)
(14)
(15)
(16)
Hook
shaft bracket
Slide plate
:>l
eedle plate
Roller foot
Needle guide
Presser
Thread
TI!reod
bar
guide (lower)
contrO
Ucr
disc
(17) Face plate
{
18
(19)
(20) Thread take up lever guard
(21) Presser regulating lhumb screw
(22)
(23} O
(24) Pre-tension
)
Thread
Thread
Thread
il
ltn.Si
on regulator
guide (
upper
We
up lever
reservoir (left)
)
3
* Preparation for installation of ma:;?
1ine
head
1 PREPARATION FOR INSTALLATION
MACHINE
1.
PLACE
The machine should
leveled floor
ing
vibration.
2.
HOW
ON
TO
Instal the hinge with screws, provided
accessory, at hole on the back
hook to the hinge plate
head is set on the table.
3. MOUNTING
HEAD
OF
Il\'STALLATION
in
order to ensure smooth operat-
of
your machine at high speed without
TO
MOUNT
THE
TABLE.
OF
THE
THE
MOTOR.
OFMACHJNE.
be
installed on well-
MACHINE HEAD
of
of
the table, then the
OF
the bed and
+ The motor is mounted generally with bolts,
nuts, and washers as provided.
+
Set
the position so that the motor pulley and
balance wheel grooves are aligned
shown in
belt
+ Then connect power supply cord and motor
cord exteaed from switch.
Fig. For proper operation when
is
inserted.
straight as
~~
Hinge
plate
in
tl
1e
Hinge
4.
H
OW
TO
CONNECT
AND
FOOT
+
The
important. It can make a
strength
+ There might
posture, but generally
in Fig.
+ The treadle position shown in Fig. (B) wi
difficult.
connecting rod to suit the operator.
5. HOW
ASSEM.BLY.
PEDAL.
angle
of
necessary to press the peda:.
be
(
A)
is
considered best.
In
this case, adjust the length
TO
MOUNT
+ Set the position
provided in accessory, to be in parallel with the
belt hole
operation position.
• When
with
with two screws provided, as shown
4
of
bobbin
the
belt, flX
the table, with the lever pushed in
winder pulley
THE
MOTOR
the slope
a slight difference in operator's
of
the bobbin winder assembly
the
of
the pedal can
differen
30•-
40
• angel as shown
THE
BOBBIN
will
assembly onto
come in contact
LEVER
be
~e
in
the
ll
be
of
the
WINDER
the
table
iu Fig.
X
(B)
l~
• Preparation for installation
of
machine head
6. HOW
KNEE
•
•
•
TO
MOUNT AND ADJUST
Lll'TER
The
knee
raise
and
Mount
method
lf
improperly installed.
MECHANISM.
lifter mechanism IS employed
lower
the
it
pr
operly onto the table
for
ea~y
operation.
presser
will be heavy and tire the operator.
1) Place
• Make a hole for knee lift
2)
How
(!)
(2)
(3)
(
(5)
( 6)
(7)
(8)
(9)
of
mounting.
underneath
to
mount
Mount
the
side
as
sho
The
bracket is
On
the knee
lifter position bracket, regulati
knee plate
order
4)
Mount the knee lifter shaft,
respective
After checking
li
on
shaft
Th
e shoner s
on
the
bar
is
The
the shaft bracket (front).
The oth
knee plate bar moving it.
After mounting all these partS,
whether
operated lightly.
the
table
the
knee lifter
of hole
wn
other
mentioned, then tighten respectively.
of the
bracket screws.
bar brack
mounted on the knee plate.
end
er end
for spring towards your side
in Fig.
side
of
>Crewed
bar
parts,
of
the
so
lifter shaft, mount the knee
bracket,
on
up
knee
lifter shaft. tighten the
ide
of
knee pla
cL
spring is inserted into a hole
of
knee
THE
to
bar
.
by
following
the
operating action
er
shaft brack
according
the
as
10
Fig.
shaft brack
knee
lift
able to insert the
ng
rod bracket,
and
spring
on
whi
et
Sho"'n.
et v.·hile
er
shaft
in
the
ch
fixed
the shaft brr:ckel
all the parts e;.d inclina·
te
bar is mounted
and longer side
spring is placed on
lifter mechanism can
of
the
chec
of
the
be
Table
top
plate
line
of
knot
URe
r
.-.haft
Shaft brocket (fronl)
I Sllaft brocket
1
K=c
hft•
r
r~tion
!<no<
p!>!e b:l:
k
l=cltet
I
Rod
bracket
(bad)
br..ckcl
1
5
~
Preparation
3}
Adjustm
(1) Place
Since the position bracket
the starting point of knee plate, tighten the
rew
sc
stopper
with top underneath
(back).
for
installati
ent.
of
knee lifter position bracket.
on
of
makes
at
the proper position
of
position bracket
of
the shaft bracket
machine
come
standardize
so
that
contact
head
the
Puo;ition
(2)
ing
•
The
presser
crank lever
of
the knee lifter bell crank regulat-
rod
and
its
bracket.
regulating rod mak
foot by
means
up
and down.
es
raise and down the
of
+ While the presser foot do
length (A)
screw
conracts
7. BOW
8.
HOW TO
PRE\!Erli'TING R
TO
Fit the oil
the table so as
knee lifter mechanism.
the
The
vibration preventing rubber
prevent the
by provide smooth operation
Fit these rubber insulators properly at
four
comers
Remember, the machine
are
not
loo
sening the regulating
so
that the rod and crank lever
with
as
show11
MO
UNT
pan
with nails into the bole bored
oot
MOUNT
UBBF:
machine from vibrating and
of
the table as shown
in
TKE OIL
to
come into contact with
THE
R.
will
mounted properly.
moving the bell
w-ned,
adjust the
rod
Fig.
PAN.
in
VffiRATlO~
is
used
to
there-
of
the machine.
the
in
Fig.
vibrate
if
these
K4
..
lif\<r
rcJU]ating
rod
Holl
(!)
• Be
(2) Nail the
ow out
radius and
insulato~.
sure
where
at the four comers.
four
corners
13rnm depth to fit the rubber
to give smooth
hollow
vibration preventing rubbers down
out
is
of
the table20rnm
surface
made
.
to
"A"
6
• Preparation
for
operation
II. PREPARATION FOR OP
1.
SELECI"IO!Ii
• For best results, usc high quality machine
thread.
• For upper thread use left-twist thread.
+
To
check whether a thread
right-twist, hold the thread
and
toward your side. If the thread
loose,
thread twist becomes tight the thread is left-
twist.
2. H
OW
TO ATTACH THE
•
Dpx5
general
for
• But select the needle size that meets the
requirements of the
thread
For One Needle Type
(
1)
\VhiJe
the
needle bar
(2) Move the
OF THREAD.
twist
t.IJe
thread held
the
thread
(135x5) type needle
usc.
used
the presser bar lifter is
balance
wheel
to
its highest position.
roller foot
ERA
as
in
is
right-twist. and
I';"EEDLE.
is
recommendable
meterials
by
band
10
the
TION.
is
lc
ft-twist
shu
Nn
in
the right hand
twi
st
becomes
sewn
and
r.tiscd.
1:
: raise the
left as sbown
Fig.
(3) Loosen the needle clamping screw.
(4) Hold the needle
groove side (left). Then
deeply
hole.
(5) Securely tighlell the needle clamping
For Two Needle Type
(1) While !he presser bar lifter is raised, turn
the
bar
(2) Move the roller
Fig.
(3) Loosen the needle clamping screw.
(4)
Hold the needles
side with the tong
other).
!litO the needle clamping hol
(5)
Securely tighten the needle clamping screw.
it
will go into the needle clamping
balancx:
to
its highest position.
and
wbeel
footiO
insert
10
its
side with the long
insert
the needl e
by
band
10
raise
the needle
the
left&; shown
so
that
ti:Je
two needles
grooved (faces each
it
as deeply
es.
as
it will go
or
Fig.
if
the
the
tum
screw.
in
a~
in
I:
1
[
••
g-
-::.
n
a
"
&
2
(i
a:
c
-=-
~
,...
i
0.:
g
-.
c
c.
~
[?'
;>
n
n
~
c
~
i
RoUer
'-
fooo
~
\~
\
e
f
I
!
•
7
* Preparation for operation
*When
lo
skipping may result due to the twise
these threads. In this case, observe the
condition
needle in a manner that the needle hole
would be positioned
direction.
3. HOW
F
or
(1) Raise the thread take up lever to its highest
(2
(3}
using nylon
ops may be formed improperly
of
the loops and mount the
TO
THREAD THE UPPER THREAD
One Needle Type
position
) After
the roller foot to the left holding
as per arrow shown in
Thread
I Spool p
turning the balance wheel
the
presser bat lifter is raised, move
in
the following order:
in
or
silk threads, the
in
a slightly oblique
Fig
.
9 Thread guide
2 Pre-tension (Needle bar
3 Thread retainer
4 Tension discs
10
Thread guide
(needle
5 Thread take up spring II Needle
6 Th:-ead guide (arm}
7 Thread take
8 Thread guide (arm)
up
or
stitch
by
do,..nward
bu
shing)
bar)
of
.
hand.
Needle
&;;:.
--
v:y--
In
usual
sectional
case
of
thread
plan
!Jl
&
case
silk
of
nylon
thread
*The
spool pin I with cross-shaped hole,
pre-tension
provided to prevent the thread from rwist-
ting,
so
* The tension discs 4 consists
pass the thread between these
the right to the
* For the thread take
thread from the right to the left.
* For the
right
to
* For
the
the
right
2 and thread retaine
follow as shown
in
Fig.
of
left.
up
spring
take
up lever 7, pass it from the
t.'le
left.
needle 10, pass
it
from the l
-r
3
are
rwo discs,
discs from
5,
pass the
eft
to
8
In
case
of
Two
Needle
(I)
Raise the thread take up lever to
position turning dle balance wheel
(2)
tn
case
of
the
one
needle type did-move
the
left.
(3)
How
to
tilread from
(left).
Type
roller
foot.
the
it is
the
conon
L 1 Spool pin (left) 6
L2
Thread guide up spring
(Upper)
L2"
"fluead guide (upper)
(right) l.8
pin
L3
Pre
-tension (upper hole)
(upper) 7 Thread guide
1..1'
Threa
d guide (upper)
pin (left)
lA
Thread
regularor (upper)
Thread controller ing (back)
L5
disc (back)
(4) How
(right).
tension (lower)
to
thread from
7 Thread gui
Tak
9 Thread guide
LIO
Lll
the
cotton
R 1 Spool pin (right ) 7 Thread guide
Thread guide (upper)
R2
(lower)
Pre-rension (lower hole)
R3
(lower) 7 Thread guide
R4 Thread tensi
regulator (lower) 9 Thread guide
RS
Thread controller (lower)
disc (front) RIO Nccdle clamp-
6 Thread
spring
*
To
the
pre-tension 3 a
4 thread
*
To
inside to outside.
between these discs.
the two needles 11., Thread from the
on
take
up ing (front)
R8
Rll
nd
tension regulator
ih
highest
by
liand.
same
order
as
roUer
fOOl
stand spool
Thr
ead take
de
e up lever
Needle clampNeedle(left)
sl!l~d
spool
Take
up lever
(upper)
Needle (right)
* Preparation for operation
to
4. H
OW
TO
THE
BOBBII'\.
(I)
Thread from the spool
(2) Wind the
WIND
the thread guide 1 to the tensior. discs 2.
tension discs 2
THE
end
LOWER
of
the thread through
on
THREAD ON
rlHOUgh
the bobbin about 5
th~
hole
of
t.'le
-6
times.
(3) Fit
(4) Push the lever toward the other side so that
(5)
(6)
• This operation can be done while working.
the
bobbin into t.'le bobbin pin 3 in a
the
thread
manner so that
the bobbin from
the pulley
Operate the machine
be wound
The
bobbin winder will automatically
free from
wound with
the
and
the belt will engage.
on
the bobbin.
th~
belt when
thread, and stopped.
can
underside.
so
that
the
1M.
bobbin is fully
be
wound
thread
on
can
be
9
* P
rep
arat
ion for opera
tion
5. HC)W
• In the event
1'0
AOJtl!':T
ASS
~IDLY.
• It is
•
I) In case
•
desi
rable
with
thread
(B) & {C) shown are
Ac!just
fo
onto
loos
adjust it moving the thread guide slightly to
the
1n
right.
the bobbin
iiowing order so as
the
bobbin
of uneven winding.
en the scr
right
the event
adj
ust it
THF.llOllR
that
the bobbin
as
shown
!'[Operly
of
une' eo
ew
{A)
of
uneven v.inding
movin
TN
is
wound
in
Fig.
{A
no
t proper winding.
"ind:r
of
:' the guide
assembly
ab
le
to
wind the thread
v.oi.nding
the thread guide,
toward
tO
WTNm;R
evenly
).
but
in
the le
toward
th
e left.
Fig.
the
and
the
ft.
0
®4li
Thludgui
~
(AdjU$l
by
s!idinl, ngbt
or
ltft)
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JJ»!JNiiiYUl!:J
Ull-
"'8,
• After
2)
• When the thread {Particularly
adjusteLI,
thread guide.
Wi
ndi
ng streng
is
wound too tightly. there
unwind
the
tighten
th
thread on a bobbill.
the:
of
sere"
thread
nyl
io
a tendency to
.
on thread)
+ in ibis case adjust the pressure
discs
with nut (B) so that thread can
out smoothly.
nding
3) Wi
•
B~
wound
thread. Excessive will
pull
•
In
tbe event
screw (C) to the l
illsufficient.
t
results
-out
amount
are
up
to 4/5
of
the thread.
of
of
thread
ob
~ed
of
its
ding
excessive "inding,
eft
aod
when
fuJI
will
to
.
the r
the
eapaciry with
results
(A)
of
be
bobbin
ig
ht when
of
the
tension
pulled
ill poor
turn
is
the
10
6.
HOW
HOOK.
In
TO
case
of
(I)
Raise
turning
(2) Move
PLA
One
the
the
the
in Fig.
(3)
Move
the
(4) Turn up
(5) Pull the bobbin thread
it like
in
the
(6) Fit
(7)
Aap
(
8)
Insen the pulled out thread end through
(9)
From
bobbin. into the hook
down the latch
the slit
(I)
the slit (1)
the hook
diagonally,
tension spring.
(1
0) Leave the end
the tension spring
CE THE
Needle
needle
M!ance wheel by
roller foot
BOBBIN
Type
bar
to
its highest position
to
the
slide plate.
the
lau:h lever as
fot
the illustration.
lever.
in
the book
body
(2), and pull
and
the thread will
of
body.
pass
the thread
thread insened
as
it
INT
O THE
hand.
left
1:1.
shown
sh~\\'!1
about 5
in Fig.
em.
base.
underneath
it
to
the right
pas.-
tlu'ough
through
is.
bo
ld
to
•
Preparation
for
operat
ion
(11)
While holding the
left
hand.
once around
(12)
Then
the upper thread
rum the
end
balance
by
right hand.
oftrpper
wheel slowly
will
hook
lower thread simultaneously through the
of
hole
thread
(13)
After placing the bobbin, close
needle plate, and leave the lower
to
other side
of
the needle plate.
plate.
thread
out
the
slide
by
the
il
• Preparation for operation
In
case of
Two
Needle Type
(I)
Raise the needle bar to its hlgbest position
turning
(2)
l.o
move
(3) Move the both slide plate.
( 4}
Tum
shown in Fig.
Pull
(5)
And hold the bobbin.
( 6) Fit the bobbin into the both hook base.
the
balance wheel by hand.
the event
out
of
the roller foot
it
to the le
up the both
the bobbin thread for about 5 em.
ft
as
shown
of
the latch lever as
is
attached,
in Fig.
(7) Flap down the both latch lever
(8}
lnsen
the pulled thread end through slit (I)
of
the hook.
(9) From the slit (l)
thread through
body
(2
), pull the left thread to the l
the right thread
thread
the
spring as shown in Fig.
( 1 0) Leave the end
!be
11
) While bolding the end
(
left hand, turn the balance wheel slowly
once around by right hand .
12)
Then the 2-upper thread will 1<>vk
(
pulling
through the hole
the lower thr
needle plate
will
tension spri.ng
the iower thread simuiianeously
of
the hook, pass the
un
derneath
of
to the right diagonally and
pass through the tension
of
the
thread
insetted
as
it is.
of
2-upper
of
needle plate, and leave
ead
to
the
oth~r
as
shown
in
Fig.
as it was.
the book
eft
through
thread
side
of
and
by
out
the
(13) After
placing the bobbin, close the both
the slide plate.
of
12
Ill
HOW
I.
STARTING
(I)
TO
Raise
OPERATE
TO
SEWING.
the
presser
bar lifter.
•
Preparation
for
operatio
n
(2) Move
(3)
(4)
(5) Lower the press
• When starting to sewing, leave the upper
thread
length
needle.
2.
SE
WJNG
( I) Stop
its highest position.
back
the
roUer
foot
sh0'-1<1!
Place
under
Tum the balance wheel
side
ill
starting
the
so
lhat tile
pulled out
so
OVE
sewing
Fig
.
By
th<:>
end
of
needles.
needle
er
bar lifter
that it will
R.
when
the
the
by
take
towaitl
your
ar:row.
marerials
by
stitche;
approx. 1 Ocm
not
up
fN
hand
toward
he
and
start
pull out from
lever
side
as
stitching
your
materials.
to
sew.
in
comes
to
(2)
Raise
the
presser (roller or ordinary) foot.
(3)
Pull
out
the stitched fabries diagonally
to
the
left side.
CUt
bolh
upper
aod
(4)
• When cuiiing the thread leave out approx.
1
Ocm
length
convenient for you
lower thread.
so
that next starting sew is
13
• Stitching Adjustment
IV. STITCHING
1.
ADJUSTMENT
• Stitcllleogth can be adjusted with the stitch
regulati
• Figures on the stitch regulating dial
th
e length in mm.
set on
de-~ired
2. REVERSE STITCHING.
Reve=
•
pushing
lever is pressed downward, reverse stitching
can
3.
ADJUSTME:'IT
• The thread tension varies according to
of
materials
length
tension accordingly.
If
the upper and lower thread tension a
•
balanced, the
the
chain·like stitches (A)
•
If.
either
too
stitches such
•
Fig.
tight,
too
ADJUSTMENT
OF STITCH
ng
dial.
~'ben
!he
pin
of
the
stitch length.
stitching can
the
reverse
be
made.
to
of
the stitches required,
middle of the fabrics to provide perfect
the
tight, or too loose, it
(B) shows
and
Fig.
loose.
lever downward.
OF
THREAD
be sewn, or
two
thread
upper
or Lower thread tension
as
(B)
and (C)
the
upper
(C) the upper thread tension
.
LL"IGTH.
the dial number
arm
it will give your
be
opetated
by
TENSION.
thread
used,
so
will
link
as
shown
will
give imperfect
as
shown in Fig.
thread
tension is
tag<-lher
i:;.!lica
tcs
is
means
of
While
the
the
type
and
the
adjust the
-e
-.-ell
in
in
Fig.
is
too
is
0
®~
X®
X©
[{!@F®ffi«@@!m!!
®t®t®t®t®f®t®g
• Tension
Adjustment
achieved
tension discs
strenglh and operating range
take-up
In case of One
I) Pressure
For gener
•
tension can be obtained just by adjusting
the
pressure
• To strengthe, tum the thread tension nut
the right.
• To slacken,
14
of
upper thread.
of the
upper
by
changing the pressure
of
the regulator,
spring.
Needle
of
the thread tension discs.
al
of
tum
Type
fabric stitching, the desired
the tension discs.
to the left.
thread tension can be
as
well
of
the
of
the
as
the
!bread
to
In
case
of
Two
Nee
dle
Type
+
To
strengthen
the
pressure
of
thread
discs, tum the therad tension nut to the right.
+
To
slacken, tum the tension nut to the left
2)
Streng th
+ Adjust the strength
of
the
thread take up spring.
of
the
take· 'l'i' spring
according to the materials to
• Standard
• Light
ma
terials
maJeri.al.s
...............
(small stitch length)
+ Heavy materials (large stitch length}
strengthen the spring
............
teosion
\J.e
stitched.
approx. 25g.
approx. 30g.
lin
<0$0 of
• Stitching adjustment
One
Ne<dle
T
ypc:
)
+
How
to adjust.
(1) Leave the
{2) Remove
(3) Loosen
plate as shown
pres
ser
bar
lifterdO\\'D.
the
face
plate.
the small screw inside
of
the upper thread tension
regulator (one needle type)
tension controller (two needle
(4
) Fit the screw driver into
thread tension srud.
and rum the stud
!0
lbe right to slacken.
and
(5) After adjnsted, tighten
the face plate back on.
put
or
to
of
the face
or
of
the thread
I)
pe).
the
groove
thread controller srub,
the left
!0
the
small screw and
of
strengthco.
the
(
In
cac ofTwo
Ncodle
Type:)
IS
• Stitching Adjustment
3) Operating range
+ lo order
it
is
necessary to
up spring
range
of
+ The operating
of
the lhread take
to
obtain proper working condition.
adjuSt
the strength
as
well
as
change the operating
the
take-up spring.
range
can
be
take-up lever is at the highest
when
the upper thread is pulled, and
tension spring mov
it
is
considered as standard.
• In
case
of
standard (general fabrics) materials.
......
approx. 8nun(5/16")
• In
case
of
light (small stitch length) materials,
increase
..
....
• In case
the
approx. 8mm(5/l6")
of
heavy (large stitch leng
es
within
operating range slightly
decrease the operating range slightly
..
....
approx. Smm(S/16") or less
• How
to
adjustment (One Needle Type)
(
I)
Lower the presser bar
(2)
Loosen the thread tension regulator
(3)
Fit the screw driver into the grucve
lh"tcr.
tension regulator srud;and rum the srud to the
right to small the operating range.
(4) Turn tlle srud
rang.
(S) After adjusted, tighten the screw.
to
the
left to large tlle operating
up
measuroc'
the width
or
up
spring.
of
the take
when tlle
{'1
Sition, and
of
.........
th)
materials.
.........
ut
screw .
the
BIIllll.
of
the
I
I
I
I
I
I
I
I
I
I
(f
I
I
• How
to
adjust
(I)
Loosen the thread controller set screw.
(2)
Fit the screw driver into the groove
thread controller sllld. and rum the srud to
the right to
{3)
Tum the srud to
(Tow Needle Type)
small the operating
the
lefi to
range.
(4) After adjusted, tighten the screw.
16
ranr,.
r:arge
the operating
of
the
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