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Tire Pressure
Maintain the air pressure in the front and rear tires as
specified. Uneven tire pressure can cause uneven cut.
Check the pressure at the valve stem after every 50
operating hours or monthly, whichever occurs first
(Fig. 36). Check the tires when they are cold to get
the most accurate pressure reading.
Pressure: 13 psi (90 kPa) drive wheels and castor
wheels.
Figure 36
1. Valve stem
1
m–1872
Wheel Hub Slotted Nut
Check after every 500 operating hours.
The slotted nut needs to be torqued to 125 ft–lbs
(169.5 N m).
1.
Stop the engine, set the parking brake, remove
the key and disconnect the spark plug wire(s)
from the spark plug(s).
2.
Remove cotter pin.
3.
Torque slotted nut to 125 ft–lbs (169.5 N m)
(Fig. 37).
4.
Check the distance from bottom of slot in nut to
inside edge of hole. Two threads or less should
be showing (Fig. 37).
5.
If more than two threads are showing remove nut
and install washer between hub and nut
(Fig. 37).
6.
Torque the slotted nut to 125 ft–lbs (169.5 N m)
(Fig. 37).
7.
Tighten nut until the next set of slots line up
with the hole in the shaft (Fig. 37).
8.
Replace cotter pin.
4
2
Figure 37
1. Slotted Nut
2. Two threads or less
showing
Maintenance
1
3
3. Hole in threaded rod
4. Washer (if needed)
51
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