Toro 72907 - Checking the Wheel-Hub Slotted Nut; Adjusting the Caster-Pivot Bearing; Removing the Clutch Shim

Checking the Wheel-Hub
Slotted Nut
Service Interval : After the rst 100 hours
Every 500 hours
Check and ensure that the torque of the slotted nut is
286 to 352 N∙m (21 1 to 260 ft-lb).
Note: Do not use anti-seize compound on wheel hub.
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Figure 76
1. Slotted nut
Adjusting the Caster-Pivot
Bearing
Service Interval : Every 500 hours/Y early (whichever
comes rst)
1. Park the machine on a level surface, disengage
the blade-control switch (PT O), and engage the
parking brake.
2. Shut of f 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
the locknut ( Figure 77 ).
4. T ighten the locknut until the spring washers are
at, and then back of f a 1/4 turn to properly set
the preload on the bearings ( Figure 77 ).
Important: Make sure that the spring
washers are installed correctly as shown in
Figure 77 .
5. Install the dust cap ( Figure 77 ).
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Figure 77
1. Spring washers
3. Dust cap
2. Locknut
Removing 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 , you can remove the shim to
extend the clutch life.
g010869
Figure 78
1. Armature 5. Brake spacer
2. Field shell 6. Re-gap shim
3. Rotor 7. Brake pole
4. Brake-mounting bolt
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