Jack JK-T9280D User Manual

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

Jack JK-T9280D Specifications

General

Brand	Jack
Model	JK-T9280D
Category	Sewing Machine
Language	English