Lubricating The Caster-Wheel Hubs - Toro 74946 Operator's Manual

5. Grease the drive-belt idler arm
Figure 42
6. Remove the dust cap and adjust the caster pivots.
Note: Keep the dust cap off until greasing is complete.
Refer to Adjusting the Caster-Pivot Bearing (page
7. Remove the hex plug and thread a grease fitting into
the hole.
8. Pump grease into the fitting until it oozes out around
the top bearing.
9. Remove the grease fitting from the hole.
10. Install the hex plug and dust cap
Figure 43
(Figure 41).
49).
(Figure 43).
36
Lubricating the Caster-Wheel
Hubs
Service Interval: Yearly
1. Stop the engine, wait for all moving parts to stop,
remove the key, and engage the parking brake.
1. Seal guard
2. Remove the caster wheel from the caster forks.
3. Remove the seal guards from the wheel hub.
4. Remove a spacer nut from the axle assembly in the
caster wheel.
Note: Thread-locking compound has been applied to
lock the spacer nuts to the axle.
5. Remove the axle (with the other spacer nut still
assembled to it) from the wheel assembly.
6. Pry out seals and inspect bearings for wear or damage
and replace if necessary.
7. Pack the bearings with a general-purpose grease.
8. Insert 1 bearing and 1 new seal into the wheel.
Note: Replace the seals.
9. If both spacer nuts have been removed (or broken
loose) from the axle assembly, apply a thread-locking
compound 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.
10. Insert the assembled nut and axle into the wheel on the
side with the new seal and bearing.
11. With the open end of the wheel facing up, fill the area
inside the wheel around the axle full of general-purpose
grease.
12. Insert the second bearing and new seal into the wheel.
13. Apply a thread-locking compound to the second spacer
nut and thread it onto the axle with the wrench flats
facing outward.
Figure 44
2. Spacer nut with wrench
flats