Jack JK-T9270D Product guide



  
 


 
JACK SEWING MACHINE CO.,LTD.
 
  
  

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
JK-T9270D/9280D

Manual book
••

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9-12.
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10.
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From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

CONTENTS
1. NAMES OF MAJOR PARTS ............................................................................................................. 1
2. MACHINE
SPECIFICATIONS ......................................................................................................... 1
3.
WORKTABLE .................................................................................................................................... 2
4. INSTALLATION...............................................................................................................................
.. 3
4-1. Installing
the machine head .........................................................................................................3
4-2. Cotton
stand ..................•............................................................................................................... 4
4-3. Lubrication.................................................................................................................................... 5
4-4. Checking the machine pulley rotation direction........................................................................6
5. PREPARATION
BEFORE SEWING ............................................................................................... 6
5-1. Needle
and threads ....................................................................................................................... 6
5-2. Installing
the needles................................................................................................... •. ............... 7
5-3.
Threading the lower threads ....................................................................................................... 7
5-4.
Threading the upper threads ....................................................................................................... 8
6.
SEWING ...............................•............................................................................................................... 8
7.
THREAD TENSION..........................................................................................................•................ 9
7-1 . Adjusting the thread tension....................................................................................................... 9
7-2. Presser foot pressure adjustment...............................................................................•................ 10
7-3. Adjusting the stitch len gt h........................................................................................................... 10
7-4.
Puller feed adjustment (Machines with puller)......................................................................... 11
8. CLEANING.......................................................................................................................................... 12
8-1. Daily cleaning..............................................................................................................................
.. 13
8-2.
Chang ing the lubricating oil (every three months)................................................................... 13
9. STANDARD ADJUSTMENTS.......................................................................................................... 14
9-1. Needle bar height adjustment ......................................................................................................14
9-2. Needle
and loop er timing adjustment......................................................................................... 15
9-3. Timing
of loopers runnin g clear of needles............................................................... •. ............... 16
9-4. Needle
guard adjustment ............................................................................................................. 17
9-5. Feed dog hei
ght adjustment......................................................................................................... 18
9-6.
Upper thread take-up thread guide adjustment ...................................................................... .. 18
9-7.
Upper thread arm thread guide adjustment.............................................................•.............. .. 19
9-8.
Thread release shaft adj ustmen.................................................................................................. 19
9-9.
Lower thread tak e -up timing adjustment.................................................................................. 19
9-10. Installing the lapp
er ....................................................................................................................20
9-11.
Puller height adjustment (Machine with puller)..................................................................... 20
9-12.
Puller device timing adjustment (Machines with puller)........................................................ 20
10.
TROUBLESHOOTING .................................................................................................................... 21
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

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From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

-iv-
Thankyou very much for buying sewing machine.Before using your newmachine.please read the
safety instructions
be lowand th e explanations given in the instruction man ual.
With industrial sewing machines, it is normal to carry o ut work while position ed directly in front of
moving parts such as the needle and thread take-up and thr ea d take-up lever, and co nsequently there
is always a danger
of injury th at can be ca u se d by th ese parts. Fo llow the instructions from training
personnel and instructiors r
egar ding safe and correct op era tion before op era ting the m ac hine so that
yo u wi ll know h ow to u se it co rr ec tl y.
SAF ET Y INSTR U CTIO NS
1.Safety ins t ruc t ion and their meani ng
This instruc ti on manual and the indi ca tions and symbols that are used on the machine itself are provi-
ded
in order to ensure safe opera ti on of this machine and to prevent accidents and injury to yourse lf or
other people.
The m ea nings of these indications and symbols and symbols are given below.
Indications
A CAUTION
Th e instructions which foll ow this term indicate situations
where failure to follow the instructions could
ca u se injury
when using the machine
or physical damage to equipment
and surroundings.
Symbols
• • Thi s sy mb ol in sicates so mething that you should be care ful of. The
pi ct ur e inside th e tr i ang le indic at es th e na ture of the caution that
mu st be taken.
(For example, the sy mbol e at l eft means" bew are of injur y".)
• • This symbol indi
ca tes something that you must not do.
• • This sumbol indi
ca tes something th at you must do. The picature inside
th e circle indicates the nature of th e thing th at must bedone.
(For example, the symbol at l
ef t m ea ns "you must make the ground co -
nn ec tion".)
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

-v-
ⅳ
A CAUTION
Sewing
t<:\ This sewing machine should only be us ed by
\Y operators who have r ece ived the necessary tr-
aining in safe use befor
e- hand.
(S) Th e se wing machine should not be u se d for
any appli
ca tions other than sewing.
A Attach all safety de vices b efo re using the se-
~ w in g machine. Ifthe machine is used without
these
de vi ces a tt ached, injury may resul t.
A Do not touch any of the moving parts or pr ess
~ any obj ec ts against the machine while sewing,
as this may result
in personal injury or damage
to the m
ac hine.
0
0
Cleaning
A Tum o ff the power switch before ca rrying out
~ cleaning. Th e motor will keep turning even
after the p
owe r is s wit ched o ff as a r es ult of
the motor' s inertia. Wait until the motor stop
fully before starting work.
Th e machine may operate if the tr ea dleis pr es-
sed by
mi stake, which co uld result in injur y.
Tum off the p oe r switch at the fo ll ow ing
times, the machine may operate if
the tr
ea dle is pressed by mistake, which
co uld result in injury.
Wh en threading the needle
Wh en repl ac ing the n ee dl e
Wh en not using the machine and
Wh en leaving the machine unattended
If using a wo rk table wh ich has cas ters,
the
ca sters hould b sec ur ed in such a
way
so that th ey cannor move.
If an e rr o o cc ur s in machine, or if abnormal
noises or smells arc no
ti c ed , immediately
tum off the power s wit ch. Th en co nt act your
n
ea rest Br other d ea l er or a qualified t ec hnician.
Be s
ur e- to w ea r prot ec tive gogg l es and gl oves
when ha nd ing the lubri ca ting oil, so that no
oil
ge ts into yo ur eyes or onto yo u s kin , othe-
rwi
se inflamma ti on ca n r es ult.
Furthermor
e, do nor drink the o il under
any c
ir cumstan ce s, as it ca n cau se vomiting
and diarrhoea.
Keep the oil out of the r eac h of children.
Maintenance and inspection
Mai nt enance a nd in sp ec tion of the se win g
mahine should only be carried out by a quali-
fi ed tec hnician.
(S) Ask your dealer or a qualified electrican to
carry out any maintenance and inspection of
the electricalsystem.
Tum off the power switch and disconn ec t the
@ power co rd from th e wall outlet atthe fo ll owing
tim
es, otherwise the machine may operate if
the
tr ea dle is pr essed by mistake, which co uld
A result in injury.
~ However, the motor will k ee p turning even
after the power is switched
off as a r es ult
of the motor
's inertia. Wait until the motor
stops fully b
efo re starting work.
When
ca n-ying out ins pe ction, adjustment
a
nd maintenance.
Wh en replcing cosuma bl e parts such a the
looper
0
0
If the power switch n ee ds to be left on when
carrying out
so me adjustment, beextremely
care
ful to observe a ll safety precaution s.
Use o nl y the pr oper replacement parts
as speified by
our company.
If any safety d ev i ces have b ee n rm ove d be
ab
so lutely sure to re-instil them to their
o
ri g in al positions and ch ec k that th ey operate
co rr ec tly before using the machine.
Any problems in machine operation which
result from unauthorized modifica
ti ons
to the machine will not be covered by the
warra
nt y.
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

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ⅴ
~ is-t"F~ I WARNING LABELS
~u:1 1 fJLJ:: ~ rJ1 J~ 1!r ~r-~ .
§ {!J! JII ~ ~J tJUl•J-, · L?t ill;·f ~~ I .: l'.t'~ -i.5i r!J] • ~II*~~ JJ~H~ r~!U!;UNJ ~ t~f, ii ' U11 ~ ffi lffl ~ ~.
The following warning labels appearon the sewing machine.
Please
fo llowing the instions on the labels at a ll times when using the machine. If the labels have been remov-
ed or are difficult to read, please contact your nearest dealer.
(1) A ji
.%C
,Ti!,
A CAUTION
A
"itm~®?t, ~~Pl~~ -
mi;.1..r£~1::tc~~t?~11s,
~i1!:fi~~tli1=. tEiJJfJfEt!
j)js, iztfi-J¥~ . J!Uilt,
Moving parts
A
may cause injury.
Operate with safety devices.
Turn off main sw i tch before
threading , changing bobbin
mtHll#&if~. iJU.l i i1= .
and needle, cleaning etc.
(2)
~ ~•®i~:l:IB!
~ ~ r~ .lt!! ~1~ ~ i ✓ - l i'i l, k!::i1U£iruk rc~ ult~ z;/ Jfr- fr-J Dt. ~ .
Be sure to connect the ground. If the ground co nnection is not secure, you run the risk of
receiving a se rious electric shock.
-U~l~~1 HrtiJ .
(3) [I]
Direction of operation.
0 -l'fa:tll ~ Finger guard
8 l!/H /1 •,~l Thread take-up cover 3
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

-1-
1. -§ft~iti=-t~ /NAMES OF MAJOR PARTS
I .JJE. #(~
I. Machine pulley
0-
2. ,jijzt- :;~
2. Frontcover
3.
/li )~l 3. Pre ss er
4. ~- :)(;;} , 4. Needle bar
I 5.
ITil ~tl~~ J 5. U
pp er thr ea d ar m guide
\c
6. ill,t'1i~~
6. Lapper
~ ~ ~ :Jt• ~ :i:i~
SAFETY DEVICE
7.
~~ tJ Hf µJ i-b 'i\rl 7. Thread take-up cover
8.
-l'Pmn
8. Finger guard
2. ~tJJJ*JLi.W.m I MACHINE SPECIFICATIONS
~~ Specificatio ns
ffl:it Appli ca tions
ttfi NO.
of needl es
;t/1. ttm!-iJ
Type of n ee dl e
ttHe Ne e dl e ga uge
&:k~ :i,H~:Lt
Max. s ti ch length
liVJ ,:ll!~ *Lt
Min. arm si ze
:Q:k~~H£lt
Max. sewi ng spee d
AW.~
Specifications
- 1 - 2
If! W:ffii~
- 5
AW. ~
Specifications
- 1
t&W:t-1
$~
w:~
L ig ht -medium Very thick
Light m ater ial s Thick m ater ial
mat
erials m aterial
2, 3 2 3 3
TV X64 12 11 TV X64 1411 TV X5 2llt TV X5 2 111
3. 2mm(l/8) 4
.8 mm(3 /16)
4.
8mm(3 /16) 3. 2 mm (1/ 8) 3. 2mm(l/8)
6. 4mm(l/
4)
6. 4mm( l/ 4)
3.5mm 4. 2 mm
171mm
4, 000 rpm 3,60 0 rpm
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com