Checking the Wheel Lug Nuts
Check and torque the wheel lug nuts to 122 to 129 N∙m (90
to 95 ft-lb).
Checking the Wheel-Hub
Slotted Nut
Service Interval:
After the first 100 hours
Every 500 hours
Check and ensure that the torque of the slotted nut is 286 to
352 N∙m (211 to 260 ft-lb).
Note:
Do not use anti-seize compound on the wheel hub.
Figure 63
1.
Slotted nut
Adjusting the Caster-Pivot
Bearing
Service Interval:
Every 500 hours/Yearly (whichever comes
first)
1.
Disengage the blade-control switch (PTO), move the
motion-control levers to the N
EUTRAL
-
LOCK
position,
and set the parking brake.
2.
Shut off the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3.
Remove the dust cap from the caster and tighten the
locknut (
).
4.
Tighten the locknut until the spring washers are flat and
then back off a 1/4 turn to properly set the pre-load on
the bearings (
).
Important:
Make sure that the spring washers are
installed correctly as shown in
.
5.
Install the dust cap (
).
Figure 64
1.
Spring washers
3.
Dust cap
2.
Locknut
Using the Clutch Shim
Some later model year units have been built with clutches that
contain a brake shim. When the clutch brake has worn to the
point where the clutch no longer engages consistently, the
shim can be removed to extend the clutch life.
Figure 65
1.
Armature
5.
Brake spacer
2.
Field shell
6.
Re-gap the shim.
3.
Rotor
7.
Brake pole
4.
Brake-mounting bolt
44
