Checking The Wheel Lug Nuts; Checking The Wheel Hub Nuts; Adjusting The Caster Pivot Bearings - Toro 74310 Operator's Manual

Figure 45
Note: Do not add any type of tire liner or foam fill material
to the tires.

Checking the Wheel Lug Nuts

Service Interval: After the first 100 hours
Every 500 hours
Check and torque the wheel lug nuts to 122 to 129 N-m (90
to 95 ft-lb).

Checking the Wheel Hub Nuts

Service Interval: After the first 100 hours
Every 500 hours
Check and ensure that the torque of the slotted nut is 373 to
475 N-m (275 to 350 ft-lb).
Adjusting the Caster Pivot
Bearings
Service Interval: Every 500 hours/Yearly (whichever comes
first)
1. Move the speed control lever to the neutral position
to stop the machine.
2. Disengage the PTO, engage the parking brake, stop the
engine, and wait for all moving parts to stop.
3. Remove the dust cap from the caster and tighten the
locknut (Figure 46 and Figure 47).
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 46 and Figure 47).
Important: Make sure that the spring washers
are installed correctly as shown in Figure 46 and
Figure 47.
5. Install the dust cap.
1. Spring washers
2. Locknut
1. Spring washers
39
Figure 46
Front caster
3. Dust cap
Figure 47
Rear caster