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Figure 40
6.
Remove the dust cap and adjust the caster
pivots, and keep the dust cap off until greasing
is done; refer to
Adjusting the Caster-Pivot
Bearing (page
51).
7.
Remove the hex plug and thread a grease fitting
into the hole.
8.
Pump grease into the grease fitting until it oozes
out around the top bearing.
9.
Remove the grease fitting in the hole. Install the
hex plug and dust cap
Figure 41
g009030
(Figure
41).
g027339
Lubricating the
Caster-Wheel Hubs
Service Interval: Yearly
1.
Shut off the engine, wait for all moving parts to
stop, remove the key, and engage the parking
brake.
1. Seal guard
2.
Raise the mower for access.
3.
Remove the caster wheel from the caster forks.
4.
Remove the seal guards from the wheel hub.
5.
Remove a spacer nut from the axle assembly in
the caster wheel.
Note:
Thread-locking adhesive has been
applied to lock the spacer nuts to the axle.
6.
Remove the axle (with the other spacer nut still
assembled to it) from the wheel assembly.
7.
Pry out seals and inspect bearings for wear or
damage and replace if necessary.
8.
Pack the bearings with a general-purpose
grease.
9.
Insert 1 bearing and 1 new seal into the wheel.
Note:
Replace the seals.
10.
If the axle assembly is missing both spacer nuts,
apply a thread-locking adhesive to 1 spacer nut
and thread it onto the axle with the wrench flats
facing outward.
Note:
Do not thread the spacer nut all of
the way onto the end of the axle. Leave
approximately 3 mm (1/8 inch) from the outer
surface of the spacer nut to the end of the axle
inside the nut.
11.
Insert the assembled nut and axle into the wheel
on the side of the wheel with the new seal and
bearing.
36
Figure 42
2. Spacer nut with wrench
flats
g006115
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