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Drive System
Maintenance
Checking the Tire Pressure
Service Interval: Every 25 hours—Check 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
Check the tires when they are cold to get the most
accurate pressure reading.
Inflate the front caster wheel tires to 103 kPa (15 psi).
Inflate the rear drive wheel tires to 90 kPa (13 psi).
Figure 49
1. Valve stem
Belt Maintenance
Inspecting the Belts
Service Interval: Every 25 hours—Check the belts
Replace the belt if it is worn. The signs of a worn belt
include squealing while the belt is rotating; the blades
slipping while cutting grass; and frayed edges, burn
marks, and cracks on the belt.
(Figure
49).
Replacing the Mower Belt
The signs of a worn belt include squealing while the
belt is rotating, blades slipping while cutting grass,
and frayed edges, burn marks, and cracks on the belt.
Replace the mower belt if any of these conditions are
evident.
1.
Park the machine on a level surface, disengage
the blade-control switch (PTO), and engage the
parking brake.
2.
Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
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3.
Set the height of cut at the lowest cutting
position.
4.
Remove the pulley covers
1. Cover
5.
Loosen the nut securing the wire form to the
idler pulley
38
for wear or cracks.
(Figure
Figure 50
2. Screw
(Figure
51).
50).
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