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Automatic Thread Trimmer Mechanism
1. Positioning of moving knife arm installing plate
(Adjustment of position of moving knife)
™ Loosen nut 1 of setscrew
™ Loosen setscrew 2 of knee lifter lever shaft.
™ Loosen setscrews 3 in installing plate and move
installing plate to the right or left to obtain position
A.
™ Tighten setscrews 3 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 solenoid
(Moving amount of thread trimmer cam contactor shaft)
™ Loosen nut 1 of setscrew.
™ Enter thread trimmer contactor shaft caulked in
moving knife roller arm 2 to groove in thread
trimmer cam 3. (Press it strongly by finger and
trun handwheel.)
™ Move thread trimmer solenoid 5 and adjust so that
moving knife roller arm 2 comes in close contact
with moving knife arm 4 when thread trimmer
solenoid is ON.
Remove E-ring of looper link B to release
connection.
Nut of 1 setscrew
Attach thread
trimmer solenoid pin
to center of shaft.
5 Thread trimmer solenoid
E-ring of looper link B
6 Thread trimmer
solenoid setscrew
2 Moving knife roller arm
4 Moving knife arm
3 Thread trimmer cam
Moving knife base
4
Nut of setscrew 1
3 Moving knife arm installing plate setscrew
2 Knee lifetr lever shaft
setscrew
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