JUKI TL-98Q - TL-98 Q Automatic Thread Trimmer Mechanism

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Automatic Thread Trimming Components
1. Looper mas. asm.
Preparation
™ Remove bed cover.
2. Moving knife arm installing plate mas. asm.
Preparation
™ Remove bed cover.
™ Remove 2 looper mas. asm..
™ Remove moving knife arm 6 spring.
3 Nut (9 mm) of wire
setscrew
1 Moving knife link shaft A
E-ring E-4
5 Moving knife link
4 Moving knife arm installing plate mas.
asm. set screw SM4050855SP
6 Moving knife arm spring
Disassembly
™ Remove 1 E-ring.
Do not remove 5 moving knife link.
(Remove together with moving
knife arm installing plate.)
™ Remove 3 nut on the left side only.
™ Remove thread trimmer clutch
plate 7 collar setscrew and 8
thread trimmer clutch plate collar.
™ Remove two 4 screws and remove
installing plate mas. asm.
At this time, simultaneously remove
moving knife link.
( To prevent moving knife link from
warping)
Assembly
™ Attach moving knife arm installing
plate mas. asm.
Note : See the point on the right side.
™ Temporarily tighten 4 setscrews.
™ Attach 1 E-ring of link shaft.
™ Temporarily tighten 2 looper
mas. asm..
™ Attach 6 moving knife arm spring.
™ Determine position of moving
knife and securely tighten 4.
Note : Refer to assembling of moving
knife and looper mas. asm.
Point
™ Set 1 moving knife link and wire
3 setscrew.
™ Position of moving knife
Remove hook and see from the
reverse side of bed.
(See item 1 on page 23.)
™ See item 5 on page 27 for
adjustment of 3 nut of wire.
5 Looper mas. asm.
setscrew
SM5040855SN
3 Looper link asm.
2 Looper link holding shaft
(Washer A1731090000
E-ring E-3)
4 Moving knife
arm spring
1 Looper link B
E-ring E-3
Disassembly
™ Remove 1 E-ring.
™ Remove E-ring and washer of 2.
™ Remove looper link asm of 3.
™ Remove moving knife arm spring
of 4.
™ Remove setscrews of 5 and
remove looper mas. asm.
Assembly
™ Attach looper mas. asm. and
tighten 5 setscrews. (Adjust
looper link B shaft to hole.)
™ Hook moving knife arm 4 spring.
™ Set looper link and attach E-ring,
washer, etc.
Point
™ Place 6 looper in the center 7
of inner hook and securely tighten
5.
See item 4-2 on page 27 for
adjustment of looper moving
amount.
7 Bobbin case
(Center of inner hook)
6 Looper
2 Looper
mas.asm
8 Thread trimmer clutch
plate collar
7 Thread trimmer clutch plate
collar setscrew
TL-98Q