Taylor-Dunn SC-011-59 Operation, T Roubleshooting And Replacement Parts Manual page 111

Connect a voltmeter across one of the COLD
terminals of the KSI 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.
•
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 the voltage is at battery volts and the
test at the PMC KSI terminal in the
Control Wire Inputs section failed then
check the wiring between COLD terminals of the KSI side of the F&R switch and the PMC
KSI terminal. 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.
F/R switch
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.
Main Sequence
Electrical Troubleshooting
The COLD terminal is the
Violet/Black wire on either
end of the switch
Or,
Page 15
Battery Negative