Automatic Thread Trimmer Mechanism; Positioning Of Moving Knife Arm Installing Plate; Adjustment Of Position Of Moving Knife - JUKI TL-98Q Service Manual

TL-98Q

Automatic Thread Trimmer Mechanism

1. Positioning of moving knife arm installing plate

(Adjustment of position of moving knife)

™ Loosen 1 nut of setscrew
™ Loosen 2 setscrews in installing plate and move
installing plate to the right or left to obtain position
A.
™ Tighten 2 setscrews in installing plate.
Reference (substitution)
Position of moving knife (see from under side of bed.)
Overlapping amount of slot 4 of moving knife base
with portion R of moving knife is 0 to 0.5 mm.
(To such an extent that portion R of moving knife is
slightly seen from slot 4)
2. Installing position of thread trimmer SOL (solenoid)
™ Move 3 thread trimmer solenoid asm. to the right
and left to adjust so that clearance between 1
thread trimmer auxiliary link and 2 thread trimmer
auxiliary cam is 0.5 to 1.0 mm, and tighten it with
4 setscrews.
When thread trimmer solenoid asm. is set to ON, it
has to interlock thread trimmer auxiliary cam.
1 Thread trimmer
auxiliary link
Figure observed from the
4
rear after removing hook.
Moving knife base
0.5 to 1.0
25
–
2 Moving knife arm
installing plate setscrew
Counter knife
Align top end of moving knife with border of black coloring
section and polished plane of counter knife.....A
3 Thread trimmer
4 Thread trimmer solenoid setscrew
solenoid
2 Thread trimmer auxiliary cam
–
1 Nut of setscrew
Moving knife base