Brother RH-9820 Service Manual page 95

1. Bearing
2. Bearing collar
3. Bearing
4. Bearing collar
5. Bearing
6. Lower shaft tension
pulley A
7. Lower shaft tension
pulley B
8. Socket bolts with
washers [3 pcs]
A
Lower shaft pressure adjustment
1) Set so that the amount of protrusion is 24.8 mm, and then tighten the two set screws (10) of the bearing
collar (2) against the lower shaft (9). (This is to prevent the shaft from protruding when installing the lower
shaft cam (28).)
2) While pushing the lower shaft (9). in the direction of arrow (A) with a force of 29.4 N, tighten the two set
screws (11) of the bearing collar (4).
3) Push the back of lower shaft tension pulley B (7) gently in the direction of arrow (B) and tighten the two
set screws (12).
9. Lower shaft
10. Set screws [2 pcs]
11. Set screws [2 pcs]
12. Set screws [2 pcs]
13. Internal retaining ring
14. Bearings [2 pcs]
15. Internal retaining ring
16. Idler pulley
17. Collar
18. Idler pulley shaft
19. Set screw
RH-9820
20. Bearings [2 pcs]
21. Retaining ring C
22. Tension pulley collar
23. Socket bolt (Temporarily tighten)
24. Timing belt (For lower shaft -
upper shaft motor) (Temporarily
tighten)
25. Timing belt
(For upper shaft - lower shaft)
26. Lower shaft cover assembly
27. Screws [2 pcs]
28. Lower shaft cam
29. Set screws [2 pcs]
(Temporarily tighten)
6. ASSEMBLY
0934B
86