Filter
Top Products
Dealer Service 23
MAN0845 (1/12/2011)
Figure 16. Spindle Disassembly
Spindle Assembly
Refer to Figure 17.
Bearing cones and cups are designed to work together.
It is important to position them so bearing cone taper
mates with cup taper.
1. Lubricate new cups (6) with a light oil. Place them
in spindle housing (5) so they will mate with
bearing cones (4). Cups (6) and cones (4) are a
press fit to minimize wear.
Seat cups (6) securely with a press or place a large
drift in the flat lip and drive them into housing (5)
until cup seats against machined shoulder of hous-
ing.
2. Place bottom bearing cone (4) into spindle with
taper positioned to mate with cup (6).
Figure 17. Spindle and Shaft Assembly
NOTICE
■ Improper positioning of seals can cause seal
damage. An improperly installed seal will leak and
could cause bearing failure.
3. Identify the open side of the seal (3) containing the
spring.
4. Apply a thin coat of Permatex to the area of
housing where seals seat.
5. Install bottom seal (3) with spring up toward center
of housing.
6. Place seal squarely on housing and select a piece
of pipe or tubing with an OD that will set on outside
edge of seal. A tubing with an OD that is too small
will bow seal cage.
7. Carefully press seal into housing, to prevent
distortion to metal seal cage. Bottom seal should
seat firmly and squarely against machined
shoulder in housing.
8. Make sure seal lip did not roll under. Distortion to
seal cage or damage to seal lip will cause seal to
leak. Damaged seals must be replaced.
9. Insert shaft (7) through bottom of housing (5).
10. Fill housing cavity with a medium grade grease.
11. Install top bearing (4) on shaft (7) to mate with top
cone (6).
12. Apply a thin coat of Permatex to shaft area where
sleeve will seat.
13. Install sleeve (2) on shaft and press sleeve and
bearing into housing until all free play is removed
and there is a very light drag on bearings (similar to
adjusting front wheel bearings on an automobile).
Check by spinning spindle. It should turn freely.
14. Be careful not to overtighten bearings. Proper
bearing adjustment is essential to good bearing
life.
15. If you overtighten bearings, hold spindle housing
and rap spindle shaft with a lead hammer.
16. Carefully press top seal (3) in with spring up. Top
seal should be flush with or to within 1/16" above
the housing.
17. Rotate housing on spindle shaft, checking for free
movement.
18. Install grease fitting (17) in spindle shaft.
Spindle Installation
NOTICE
■ Pulley installation sequence is very important
for bearing life. Follow the sequence exactly.
1. Install spindle through bottom of mower and secure
with four mounting bolts.
3. Seal
5. Spindle Housing
7. Spindle Shaft and Crossbar
2. Sleeve
3. Seal
4. Bearing Cone
5. Spindle Housing
6. Bearing Cup
7. Spindle Shaft & Crossbar
17. Grease fitting