5. MECHANICAL DESCRIPTIONS
5-4. Presser foot lifter mechanism
1. Pulse motor
2. Driving gear
3. Presser driving arm
4. Presser foot lifter connecting rod
5. Knee lifter lever
6. Upper thread trimmer driving link
7. Knee lifter lever
8. Presser bar guide bracket assembly
9. Presser bar
10. Presser roller bracket
11. Feed arm support
12. Work clamp
39
HE-800B
0644D