Checking The Tire Pressure; Checking The Wheel Hub Slotted Nut; Adjusting The Caster Pivot Bearing - Toro Z Master Professional 7000 Series Operator's Manual

Figure 60
1. Tracking knob
2. Hydraulic tank
3. Hydraulic pumps

Checking the Tire Pressure

Service Interval: Every 50 hours or monthly, whichever
occurs first.
Check the pressure at the valve stem
Maintain the air pressure in the rear tires at 90 kPa (13 psi).
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 61
4. Turn this way to track right.
5. Turn this way to track left.
(Figure 61).
Checking the Wheel Hub
Slotted Nut
Service Interval: After the first 100 hours—Check the wheel
hub slotted nut.
Every 500 hours—Check the wheel hub slotted nut.
Torque the slottled nut to 286-352 N-m (211-260 ft-lb).
Note: Do not use anti-seize on the wheel hub.
Adjusting the Caster Pivot
Bearing
Service Interval: Every 500 hours
1. Disengage the 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 the caster and tighten the
locknut (Figure
1. Spring washers
2. Locknut
4. Tighten the locknut until the spring washers are flat,
then back off a 1/4 turn to properly set the pre-load on
the bearings (Figure
Important: Make sure that the spring washers are
installed correctly as shown in
5. Install the dust cap
46
62).
Figure 62
3. Dust cap
62).
Figure 62.
(Figure 62).