Taylor-Dunn MX-026-00, Руководство по эксплуатации, обслуживанию и замене запасных частей

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Curtis PMC Troubleshooting
Page 15
Solenoids
1. Make sure the key-switch is in the “OFF” position, then remove the key.
2. Place the forward-reverse switch in the center “OFF” position.
3. Set the park brake.
4. Place blocks under the front wheels to prevent vehicle movement.
The rear drive wheels may rotate during some of the following tests. Block the
front wheels, raise the rear drive wheels off the ground, and support the vehicle
with jack stands. Failure to do so may cause the vehicle to move and cause
severe bodily injury and/or property damage.
Rotating rear drive wheels are a potential hazard. Keep hands, arms, legs and
loose clothing away from the rear drive wheels while conducting tests. Failure
to do so may cause serious bodily injury.
If the vehicle runs in forward only then skip ahead to the test sequence:
Forward (does not run in reverse
).
If the vehicle runs in reverse only then skip ahead to the test sequence:
Reverse (does not run in forward) .
Connect a voltmeter across the ISO solenoid COLD terminal
and battery negative.
Close all interlock switches and turn the Key Switch
ON.
Depress the accelerator pedal fully.
•
If the voltage is at battery volts then the wire
from the ISO solenoid to the PMC is bad. Stop
trouble shooting here and repair the problem.
When the repair is completed, completely retest
the vehicle before lowering the drive wheels to
the ground.
Connect a voltmeter across the ISO solenoid HOT terminal
and battery negative.
Close all interlock switches and turn the Key Switch
ON.
Depress the accelerator pedal fully.
•
If the voltage is at battery volts then the ISO solenoid
has failed. Stop trouble shooting here and repair the
problem. When the repair is completed, completely
retest the vehicle before lowering the drive wheels to
the ground.
•
If the voltage is not at battery volts then check the
wiring to battery positive and the main circuit breaker.
Stop trouble shooting here and repair the problem.
When the repair is completed, completely retest
the vehicle before lowering the drive wheels to the
ground.