215922
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Revision A
7.7
Steering and Ground Speed Control Troubleshooting
Problem
Solution
Section
Symptom: The machine will not steer straight.
Linkage worn or loose
Adjust steering chain tension. Replace
worn parts. Adjust linkage.
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Symptom: The machine moves on flat ground with controls set to neutral.
Neutral interlock misadjusted
Contact Dealer.
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Parking brake not functioning
Contact Dealer.
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Ground speed lever (GSL) servo
misadjusted
Contact Dealer.
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GSL cable misadjusted
Contact Dealer.
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Symptom: Steering wheel will not lock with the GSL set to PARK.
Transmission interlock misadjusted
Contact Dealer.
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Faulty GSL neutral switch
Contact Dealer.
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Interlock springs not pulling
interlock closed
Replace or reattach springs.
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Faulty switch on PARK
Replace switch or adjust.
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Symptom: Insufficient road speed.
Ground speed limit is too low
Increase limit.
Adjusting Ground Speed Limit, page
129
Symptom: Maximum ground speed is too slow.
Servo not adjusted properly
Contact Dealer.
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Fault with wheel motor control
Contact Dealer.
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GSL position sensor not calibrated or
damaged
Contact Dealer.
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Maximum speed limit is set at
16 km/hr (10 mph)
Increase speed limit.
Adjusting Ground Speed Limit, page
129
Symptom: Steering is too stiff or too loose.
Steering chain tension is out of
adjustment
Adjust steering chain tension.
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Ball joints or steering linkage pivot
stiff
Replace or repair.
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