Brother S-710A - 4-6. Thread Trimmer Mechanism

4. MECHANICAL DESCRIPTIONS
SL-710A
10
4-6. Thread trimmer mechanism
4-6-1. Thread trimmer operation
The figure below shows the thread trimmer without the high-speed rotary hook.
1) When the thread trimmer signal is received
2) Thread trimmer holder action
1639M
1 Solenoid plunge
r
2 Solenoid leve
r
3 Thread trimmer cam lever shaft
4 Roller
(Moves over thread trimmer cam (1))
(1)
1640M
1 Thread trimmer cam
2 Roller
3 Roller block
4 Forked shaf
t
5 Thread trimmer leve
r
6 Thread trimmer
connecting rod
7 Thread trimmer holde
r
8 Movable knife