Checking The Tire Pressure; Checking The Wheel Lug Nuts; Checking The Wheel Hub Slotted Nut; Adjusting The Caster Pivot Bearing - Toro 74933 Operator's Manual

Figure 59
Left control lever shown
1. Control lever
2. Bolt

Checking the Tire Pressure

Service Interval: Every 50 hours/Monthly (whichever
comes first)
Maintain the air pressure in the rear tires at 13 psi (90 kPa).
Uneven tire pressure can cause uneven cut. Check the tires
when they are cold to get the most accurate pressure reading.
Note: The front tires are semi-pneumatic tires and do not
require air pressure maintenance.
Figure 60
g021421
3. Stop plate

Checking the Wheel Lug Nuts

Check and torque the wheel lug nuts to 90-95 ft-lb (122-129
N-m).
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 on 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 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 the
locknut (Figure 62).
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 62).
Important: Make sure the spring washers are
installed correctly as shown in Figure 62.
5. Install the dust cap (Figure 62).
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Figure 61