Multi Pro 1200/1250Page 7 -- 20Drive Train
Pump Drive Gearbox Service
1. Bearing cup
2. Bearing cone
3. Worm gear
4. Key
5. Red shim (0.002”)
6. Open output cap
7. Cap screw (4 per cap)
8. Output shaft seal
9. Retaining ring
10. O--ring
11. Blue shim (0.005”)
12. Output shaft
13. Input shaft seal
14. Open input cap
15. Ball bearing
16. O--ring
17. Red shim (0.002”)
18. Blue shim (0.005”)
19. Oil level plug
20. Coupling
21. Breather
22. Nipple
23. Gearbox housing
24. Drain plug
25. Closed output cap
26. Worm (input) shaft
Figure 20
1
2
3
4
5
10
16
22
11
17
23
6
12
18
24
13
19
25
8
14
20
9
15
21
26
1
2
5
7 7
7
10
11
13
14
15
16
17
18
8 ft--lb
(10.8 N--m)
8 ft--lb
(10.8 N--m)
8 ft--lb
(10.8 N--m)
8 ft--lb
(10.8 N--m)
Loctite #242
7
Loctite #242
Loctite #242
Loctite #242
Loctite #271
Thread Sealant
Disassembly (Fig. 20)
1. Drain lubricant from gearbox.
2. Remove retaining ring (item 9) from output shaft.
3. Loosen and remove cap screws that secure output
caps(item6 and 25) to gearboxhousing.Removecaps
with bearing cups and O--rings. Remove shims. Note
shim location for assembly purposes.
4. Carefully remove output shaft (item 12) with worm
gear and bearing cones from housing.
5. Loosen and remove cap screws that secure both
open input caps (item 14) to gearbox housing. Remove
caps and O--rings from housing. Remove shims. Note
shim location for assembly purposes.
6. Carefully pull worm (input) shaft (item 26) with bear-
ings from housing.