Checking The Wheel Hub Slotted Nut; Adjusting The Caster-Pivot Bearing; Using The Clutch Shim - Toro 74997 Operator's Manual

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.
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
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 caster and tighten the
locknut (Figure 68).
4. Tighten the locknut until the spring washers are flat,
and then back off a 1/4 turn to properly set the preload
on the bearings (Figure
Important: Make sure that the spring washers are
installed correctly as shown in
5. Install the dust cap
1
g029648
Figure 67
-
EUTRAL LOCK
68).
Figure 68.
(Figure 68).
1. Spring washers
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, you
can remove the shim to extend the clutch life.
position,
1. Armature
2. Field shell
3. Rotor
4. Brake-mounting bolt
49
Figure 68
3. Dust cap
Figure 69
5. Brake spacer
6. Regap shim
7. Brake pole