Lubricate Caster Wheel Hubs - Toro 74915 Z Master G3 Operator's Manual

2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Grease the mower deck idler pulley pivot until grease
come out the bottom (Figure 41).
4. Grease the three spindle bearings until grease comes
out (Figure 41).
Figure 41
5. Grease the drive belt idler arm (Figure 41).
Figure 42
6. Remove the dust cap and adjust the caster pivots.
Keep the dust cap off until greasing is done. Refer to
Adjusting the Caster Pivot Bearing in Maintenance.
7. Remove the hex plug. Thread a grease zerk into the
hole.
8. Pump grease into the zerk until it oozes out around
the top bearing.
9. Remove the grease zerk in the hole. Install the hex
plug and dust cap (Figure 43).
10. Grease the caster wheel bearings (Figure 43).

Lubricate Caster Wheel Hubs

Service Interval: Yearly
G009029
1. Stop the engine, wait for all moving parts to stop,
and remove the key. 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 one of the spacer nuts from the axle
assembly in the caster wheel. Note that thread
locking adhesive has been applied to lock the spacer
nuts to the axle. Remove the axle (with the other
spacer nut still assembled to it) from the wheel
assembly.
5. Pry out seals, and inspect bearings for wear or
damage and replace if necessary.
6. Pack the bearings with a general-purpose grease.
7. Insert one bearing, one new seal into the wheel.
Note: The seals must be replaced.
32
Figure 43
Figure 44
2. Spacer nut with wrench
flats