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4. If adjustment is needed, loosen the jam nut and
adjust the bolt to the correct distance. Tighten the
jam nut after adjusting the bolt (Figure 57).
5. Test the safety interlock system before operation.
1 6
2 3 4
6
2
Figure 57
1. Proximity switch target
2. Proximity switch
3. Bolts and nuts
Checking the Tire Pressure
Service Interval: Every 50 hours/Monthly (whichever
comes first)
Maintain the air pressure in the rear tires at 12-14 psi
(83-97 kPa). Uneven tire pressure can cause an uneven
cut.
Note: The front tires are semi-pneumatic tires and do
not require air pressure maintenance.
4
5
G015609
4. Bolt attached to the motion
control lever
5. Distance between 0.050
and 0.090 inches (1.27 to
2.29 mm) is needed
6. Jam 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 lock
nut (Figure 59).
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 59).
Important: Make sure spring washers are
installed correctly as shown in Figure 59.
5. Install the dust cap (Figure 59).
41
Figure 58
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