Lubricating The Caster Wheel; Hubs - Toro Z453 Z Master 74416TE Operator's Manual

4. Grease the three spindle bearings under the
pulleys until grease comes out the lower seals
(Figure 30).
5. Grease the idler arm on the mower deck
(Figure 30).
6. Grease the fittings on the push arms
(Figure 30).
Figure 30
Lubricating the Caster
Wheel Hubs
Note: When performing this procedure, the
old seals will need to be replaced with new seals.
Contact an Authorized Service Dealer for the
correct seals.
1. Disengage the PTO, move the motion control
levers to the neutral locked position and set
the parking brake.
2. Stop the engine, remove the key, and wait for
all moving parts to stop before leaving the
operating position.
3. Raise the front of the machine and support it
with jack stands.
4. Remove then nut and bolt holding the caster
wheel to the front caster fork (Figure 31).
5. Remove the seal guard from the wheel hub
(Figure 31).
Figure 31
1. Caster fork
2. Bolt
3. Seal guard
6. Remove one of the spacer nuts (with wrench
flats) from the axle (Figure 33).
Note: Thread locking adhesive has been
applied to the spacer nuts.
7. Remove the axle without removing the
opposite spacer nut (Figure 33).
8. Remove the seals and inspect the bearings
for wear or damage. Replace the bearings if
needed.
9. Pack the bearings with general purpose grease.
10. Insert the bearing and a new seal into the
wheel (Figure 33).
Note: Do not install the nut all the way onto
the axle.
11. If both spacer nuts were removed from the
axle, apply thread locking adhesive to the
spacer nut. Install the spacer nuts onto the axle
leaving an 1/8 inch (3mm) of the nut past the
axle (Figure 32).
29
4. Caster wheel
5. Nut