Drive System
Maintenance
Checking the T ire Pressure
Service Interval : Every 25 hours —Check tire
pressure.
Maintain the air pressure in the front and rear tires as
specied. Uneven tire pressure can cause an uneven
cut. Check the pressure at the valve stem ( Figure 47 ).
Check the tires when they are cold to get the most
accurate pressure reading.
Inate the front caster wheel tires to 206 kPa (30 psi)
or the pressure indicated on the sidewall, whichever
is lower .
Inate the rear drive-wheel tires to 90 kPa (13 psi).
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Figure 47
1. V alve stem
Releasing the Electric
Brake
Y ou can manually release the electric brake by
rotating the link arms forward. Once the electric brake
is energized, the brake resets.
1. T urn the key to the OFF position and remove
the key .
2. Disconnect the battery .
3. Locate the shaft on the electric brake where the
brake link arms are connected ( Figure 48 ).
4. Rotate the shaft forward to release the brake.
5. Connect the battery after moving the machine.
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Figure 48
1. Brake-link arm on the electric brake control module
2. Left, rear tire
Adjusting the T racking
When driving the machine forward full speed across
a at, level surface, if the machine pulls to 1 side,
adjust the tracking.
If the machine pulls to the left, adjust the right
motion-control lever; if the machine pulls to the right,
adjust the left motion-control lever .
Note: Y ou can adjust the tracking only for driving
forward.
1. Park the machine on a level surface, disengage
the blade-control switch, and move the
motion-control levers outward to the P ARK
position.
2. Shut of f the engine, remove the key , and wait
for all moving parts to stop before leaving the
operating position.
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