Taylor-Dunn B0-011-00, Operation, T Roubleshooting And Replacement Parts Manual

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Curtis PMC Troubleshooting
Page 17
STOP
Stop, do not continue. If you reached this point without a solution, then you may have an
unanticipated problem or have made an error during testing. It is important to review the
trouble shooting steps that have led to this point. The tests may need to be repeated.
Solenoids are shown for reference only.
The type and position of the forward
solenoid in your truck may be different
FWD/REV
Connect the test light across the Normally Closed contacts
of the Forward solenoid. Refer to your vehicles wiring
diagram to identify the position of the forward 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 Forward 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.
Reverse (does not run in forward)
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 forward.
•
If the voltage is not at battery volts then go to the
Key Switch sequence.
Connect a voltmeter across the Forward Solenoid coil
terminals. Refer to your vehicles wiring diagram to identify
the position of the forward solenoid.
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 go to the F/
R Switch sequence.
Main Battery Negative
B-
M-
A2
B+
#2
KSI
_
+
The voltage shown is for illustration
only. The actual voltage may vary.
Solenoids are shown for reference only.
The type and position of the forward
solenoid in your truck may be different
ISO
_
+
The voltage shown is for illustration
only. The actual voltage may vary.
FWD/REV