Toro ProCore SR Series Service Manual page 120

Gearbox Service (SR72 and SR75)
4 9
3
7
6
1. Gearbox housing
2. Tapered bearing (non- -gear side)
3. Retaining ring
4. O- -ring
5. Axle tube
6. Bearing
7. Oil seal
8. O- -ring
9. Seal retainer
Gearbox Disassembly (Fig. 4)
1. Thoroughly clean all corrosion and burrs from output
shaft and input shaft to allow easier gearbox disassem-
bly.
2. Use a marker to make a diagonal line across the
housing and axle tubes for assembly purposes (Fig. 5).
3. Remove eight (8) cap screws and washers (item 12)
that secure cover plate (item 14) to gearbox housing.
Remove cover plate from housing.
4. Remove socket head screws (item 16) that secure
axle tubes (items 5 and 22) to housing. Slide axle tube
assemblies from gearbox.
Gearbox Service
21
15
20
8
16
22
19
17
1
26
23
18
10. Retaining ring
11. Breather plug
12. Cap screw with washer (8 used)
13. Output shaft
14. Cover plate
15. Tapered bearing (gear side)
16. Socket head screw (6 per sleeve)
17. Inner bearing
18. Input shaft
14
12
2
11
25
10
27
Figure 4
ALIGNMENT
MARK
Page 7 - - 10
20
4
9
8
3
16
5
19
6
24
19. Shim set (gear backlash)
20. Retaining ring
21. Bevel gear
22. Axle tube
23. Shim set (input shaft endplay)
24. Plug
25. Spacer
26. Outer bearing
27. Oil seal
Figure 5
ProCore SR Series
13
7