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1. 0.1 inch max
4. If more than two threads (0.1 inch) are showing
remove nut and install washer between hub and
nut.
5. Torque the slotted nut to 200 ft-lb (271 N-m).
6. Then tighten nut until the next set of slots line
up with the cross hole in shaft. Do not loosen
nut to align the slot. If required, tighten to the
next set of slots.
7. Install a new cotter pin.
Note: Do Not use anti-seize on wheel hub.
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 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. Remove the dust cap from caster and tighten lock
nut (Figure 64).
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 (Figure 64).
Important: Make sure the spring washers are
installed correctly as shown in Figure 64.
5. Install the dust cap (Figure 64).
Figure 63
2. No more than two threads
(0.1 inch max) should be
showing here.
1. Spring Washers
2. Lock Nut
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.
1. Armature
2. Field shell
3. Rotor
4. Brake mounting bolt
Removing the Clutch Shim
1. Stop the engine, wait for all moving parts to stop,
and remove the key. Engage the parking brake.
Allow the machine to cool completely before starting
these instructions.
45
Figure 64
3. Dust Cap
Figure 65
5. Brake spacer
6. Re-gap shim
7. Brake pole
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