SPECIFICATIONS & MAINTENANCE
2-8
Toro 30” Aerator Service Manual
2
Lubricate Caster Wheel Hubs
Service Interval: Yearly
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove caster wheel from caster forks.
3. Remove seal guards from the wheel hub (Fig. 002).
4. Remove one of the spacer nuts from the axle
assembly in the caster wheel (Fig. 002). 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 NGLI grade #1 multi-
purpose grease.
7. Insert one bearing, one new seal into the wheel.
Note: Replace the seals.
8. If the axle assembly has had both spacer nuts
removed (or broken loose), apply a thread locking
adhesive to one spacer nut and thread onto the
axle with the wrench ats facing outward. Do not
thread spacer nut all of the way onto the end of
the axle. Leave approximately 3mm (1/8”) from the
outer surface of the spacer nut to the end of the axle
inside the nut.
9. Insert the assembled nut and axle into the wheel on
the side of the wheel with the new seal and bearing.
10. With the open end of the wheel facing up, ll the
area inside the wheel around the axle full of NGLI
grade #1 multi-purpose grease.
11. Insert the second bearing and new seal into the
wheel.
12. Apply a thread locking adhesive to the 2nd spacer
nut and thread onto the axle with the wrench ats
facing outward.
13. Torque the nut to 75-80 in-lbs. (8-9 Nm), loosen,
then re-torque to 20-25 in-lbs. (2-3 Nm). Make sure
axle does not extend beyond either nut.
14. Reinstall the seal guards over the wheel hub and
insert wheel into caster fork. Reinstall caster bolt and
tighten nut fully.
Important: To prevent seal and bearing damage,
check the bearing adjustment often. Spin the
caster tire. The tire should not spin freely
(more than 1 or 2 revolutions) or have any side
play. If the wheel spins freely, adjust torque on
spacer nut until there is a slight amount of drag.
Reapply thread locking adhesive.
Fig. 002 g. 14 G006115
A. Seal guard B. Spacer nut w/wrench ats
A
B
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