Adjusting The Tracking; Checking The Tire Pressure; Checking The Wheel Hub Slotted Nut - Toro 74915 Z Master G3 Operator's Manual

Figure 59
1. ROPS knob (locked
position)
2. Pull ROPS knob out and
rotate 90 degrees to
change roll bar position

Adjusting the Tracking

Refer to Adjusting the Motion Control Levers in the
Maintenance Section.

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.
3. Roll bar in the upright
position
4. Roll bar in the folded
position
Checking the Wheel Hub
Slotted Nut
Service Interval: After the first 100 hours
Every 500 hours
See Figure 61 to determine which slotted nut has been
installed on the unit.
1. Style A (black finish)
2. .03 inch (.76 mm)
• Style A (black finish):
Torque the slotted nut to 211-260 ft-lb (286-352
N-m).
Note: Do Not use anti-seize on wheel hub.
• Style B (yellow zinc):
1. Remove and discard the cotter pin.
2. Torque the slotted nut to 200 ft-lb (271 N-m).
3. Check distance from bottom of slot in nut to
inside edge of hole. Two threads (0.1 inch) or
less should be showing.
43
Figure 60
Figure 61
3. Style B (yellow zinc)
4. .24 inch (6 mm)