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Dealer Service 23
5WPMAN0242 (Rev. 7/21/2008)
2. Inspect area of shaft where seal seats. Remove
any burrs or nicks with an emery cloth.
3. Lubricate gear shaft and seal lips.
4. Place seal squarely on housing, spring-loaded lip
toward housing. Select a piece of pipe or tubing
with an OD that will sit on the outside edge of the
seal but will clear the housing. Tubing with an OD
that is too small will bow seal cage and ruin seal.
5. Carefully press seal into housing, avoiding distor-
tion to the metal seal cage.
Vertical Shaft Repair
1. Disconnect and remove the driveline from the
gearbox.
2. Remove breather plug (24) and siphon gear lube
from housing through this opening.
3. Remove gearbox stand from mower deck.
4. Remove gearbox and pulley from gearbox stand.
5. Remove vertical shaft seal (18). Replace with new
seal (see Seal Replacement, page 22).
Vertical seal should be recessed in housing. Hori-
zontal seal should be pressed flush with outside of
housing.
NOTE: Distortion to seal cage or damage to seal
lip will cause seal to leak.
6. Fill gearbox with SAE 80W or 90W gear lube until it
runs out the level plug.
7. Assemble gearbox and pulley to gearbox stand.
Attach gearbox stand to mower deck.
Horizontal Leak Repair
1. Disconnect and remove the driveline from the
gearbox.
2. Remove breather plug (24) and siphon gear lube
from housing through this opening.
3. If the leak occurred at either end of horizontal shaft,
remove oil cap (20) and/or oil seal (19). Replace
with new one (refer to Seal Replacement, page
22).
4. Fill gearbox with SAE 80W or 90W gear lube until it
runs out the level plug.
Figure 17. Gearbox Assembly
1. Crown gear
2. Gearbox housing
3. Input shaft
4. Output shaft
5. Gear pinion
6. Bearing
7. Bearing
8. Protective flat washer
9. Cotter pin
10. Snap ring
11. Snap ring
12. Spacer
13. Shim kit
14. Castle nut
15. Castle nut M24 x 2
16. Shim kit
17. Flat washer
18. Oil seal (40 x 80 x 12)
19. Oil seal (35 x 72 x 10)
20. Cap
21. Snap ring
22. Top cover
23. Bolt M8 x 14 mm
24. Breather plug
25. Cotter pin
26. Bearing
27. Ball bearing