Taylor-Dunn SS-025-34 Operation, Maintenance, And Replacement Parts Manual page 108

Curtis PMC Troubleshooting
Connect a voltmeter across the forward terminal of the
forward and reverse side of the F&R switch and battery
negative.
Close all interlock switches, turn the Key Switch ON,
and place the F&R Switch in forward.
Depress the accelerator pedal fully.
•
If the voltage is not at battery volts then the F&R switch
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.
Connect a voltmeter across the reverse terminal of the forward
and reverse side of the F&R switch and battery negative.
Close all interlock switches, turn the Key Switch ON,
and place the F&R Switch in reverse.
Depress the accelerator pedal fully.
•
If the voltage is not at battery volts then the F&R switch
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 all tests in this section were good then check
the wiring from the F&R switch to the Forward and
Reverse solenoids and both the forward and reverse
solenoid coils. 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.
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