Toro GrandStand 74504, Руководство оператора

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Greasing the Front Caster
Pivots
Service Interval: Yearly
1. Remove the dust cap and adjust the caster pivots; refer
to
Adjusting the Caster-Pivot Bearing (page 40) .
Note:
Keep the dust cap off until you have finished
greasing the caster pivots.
2. Remove the hex plug.
3. Thread a grease fitting into the hole.
4. Pump grease into the fitting until it oozes out around
the top bearing.
5. Remove the grease fitting from the hole.
6. Install the hex plug and dust cap.
Greasing the Caster-Wheel
Hubs
Service Interval: Yearly
1. Shut off the engine, wait for all moving parts to stop,
engage the parking brake, and remove the key.
2. Remove the caster wheel from the caster forks.
3. Remove the seal guards from the wheel hub ( Figure 34 ).
Figure 34
1. Seal guard 2. Spacer nut with wrench
flats
4. Remove 1 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. Remove the axle (with
the other spacer nut still assembled to it) from the
wheel assembly.
5. Pry out the seals, inspect bearings for wear or damage,
and replace them if necessary.
6. Pack the bearings with a general-purpose grease.
7. Insert 1 bearing and 1 new seal into the wheel.
Note:
You must replace the seals.
8. If both spacer nuts in the axle assembly have been
removed (or broken loose), apply a thread-locking
adhesive to 1 spacer nut, threading it onto the axle with
the wrench flats facing outward.
Note:
Do not thread 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.
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, fill the area
inside the wheel around the axle full of general-purpose
grease.
11. Insert the second bearing and the new seal into the
wheel.
12. Apply a thread-locking adhesive to the second spacer
nut, threading it onto the axle with the wrench flats
facing outward.
13. Torque the nut to 8 to 9 N∙m (71 to 80 in-lb), loosen it,
then torque it to 2 to 3 N∙m (20 to 25 in-lb).
Note:
Make sure that axle does not extend beyond
either nut.
14. Install the seal guards over the wheel hub and insert
wheel into caster fork.
15. Install the caster bolt and tighten the nut fully.
Important:
To prevent seal and bearing damage, check
the bearing adjustment often by spinning 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 the torque on the spacer nut until there
is a slight amount of drag, and apply thread-locking
adhesive.
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