Needle Bar Rocking Mechanism - Brother RH-9820 Service Manual

5-7. Needle bar rocking mechanism

* Carry out the disassembly procedure in "5-2. Upper shaft motor unit mechanism" before the disassembly
procedure in "5-7. Needle bar rocking mechanism".
* Start with the machine head tilted back.
1. Socket bolts with washers
[2 pcs]
2. Tension pulley D assembly
3. Socket bolts [2 pcs]
4. Motor stopper
5. Socket bolts with washers
[4 pcs]
6. Pulse motor assembly R
7. Timing belt D
(Return the machine head to its
upright position.)
8. Socket bolts with washers
[2 pcs]
9. Tension pulley U assembly
10. Socket bolt (Loosen)
11. Set screws [2 pcs] (Loosen)
(Tilt back the machine head once
more.)
12. Driving looper shaft assembly
13. Vertical shaft timing pulley U
assembly
14. Timing belt U
RH-9820
5. DISASSEMBLY
1077B
46