Woods BRUSHBULL BB600XE Operator's Manual page 16

1. Crown gear
2. Gearbox housing
3. Input shaft
4. Output shaft
5. Gear pinion
6. Bearing
7. Input bearing
8. Protective seal
9. Cotter pin
10. Snap ring
11. Snap ring
12. Shim, 45.3 x 2.5
13. Shim, 70.3 x 84.7
14. Nut
15. Castle nut
16. Shim, 50.3 x 70.3
17. Shim
18. Oil seal (Vertical Shaft)
19. Oil seal (Horizontal Shaft)
20. Cap
22. Top cover
23. 8 mm x 16 (8.8) HHCS
24. Vent plug
25. Cotter pin
26. Washer
GEARBOX REPAIR
Remove Gearbox from Cutter
Refer to Figure 18.
1.
Disconnect and remove the rear driveline from the gearbox.
2.
Remove breather level plug (24) and siphon gear lube from housing
through this opening.
3.
Remove 9 ga. wire and nut from vertical shaft and remove crossbar (see
Crossbar Removal, page 17).
4.
Remove the six bolts that attach gearbox to cutter and remove gearbox.
Disassemble Gearbox
Refer to Figure 18.
1.
Remove plug from side of gearbox and pour out gear oil.
2.
Remove oil cap (20) (to be replaced).
3.
Remove snap ring (10) and shim (13) from input shaft (3).
4.
Support gearbox in hand press and push on input shaft (3) to remove
bearing (7).
5.
Remove six cap screws (23) and top cover (22) from housing. Remove
gear (1) from inside housing.
6.
Remove oil seal (19) from front of housing (to be replaced).
7.
Remove snap ring (10) and shim (13) from front of housing (2).
8.
Remove input bearing (7) by using a punch and hammer from outside of
housing.
16 Dealer Service
Figure 18.
Gearbox Assembly
9.
Support housing in vise in a horizontal position.
10.
The castle nut (15), 9 ga. wire (25), and hub are already removed with
the stump jumper/crossbar. Remove the protective seal (8), and oil seal
(18).
11.
Remove cotter pin (9), castle nut (14), and washer (17) from output shaft
(4).
12.
Remove output shaft (4) by using a punch and hammer and tap on top to
drive down. Remove gear (5) and shim (16) from inside housing.
13.
Remove bottom bearing (26) by using a punch and hammer from the top,
outside the housing.
14.
Support housing upside down (top cover surface) and remove bottom
bearing (6) by using a punch and hammer from the bottom side of the
housing.
15.
Inspect gears for broken teeth and wear. Some wear is normal and will
show on loaded side. Forged gear surfaces are rough when new. Check
that wear pattern is smooth.
16.
Inspect vertical and horizontal shafts for grooves, nicks, or bumps in the
areas where the seals seat. Resurface any damage with emery cloth.
17.
Inspect housing and caps for cracks or other damage.
Gearbox Assembly
Refer to Figure 18.
NOTE: Repair to this gearbox is limited to replacing bearings, seals, and gas-
kets. Replacing gears, shafts, and a housing is not cost effective. Purchasing a
complete gearbox is more economical.
1.
Clean housing, paying specific attention to areas where gaskets will be
installed.
MAN1255 (3/19/2018)