Taylor-Dunn SS-025-34 Operation, Maintenance, And Replacement Parts Manual page 110

Curtis PMC Troubleshooting
Forward (does not run in reverse)
Connect a voltmeter across the PMC KSI terminal and battery
negative.
Close all interlock switches, turn the Key Switch
ON, and place the F&R Switch in reverse.
•
If the voltage is not at battery volts then go to
the Key Switch sequence.
Connect a voltmeter across the Reverse Solenoid coil
terminals. Refer to your vehicles wiring diagram to identify
the position of the reverse solenoid.
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 go to the F/R
Switch sequence.
Set the test light voltage to the same voltage as the battery
volts.
Connect the test light across the normally open contacts of
the reverse solenoid. Refer to your vehicles wiring diagram
to identify the position of the reverse solenoid.
Close all interlock switches, turn the Key Switch ON,
and place the F&R Switch in reverse.
Depress the accelerator pedal fully.
•
If the light comes on then the Reverse 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.
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