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C A U T I O N
Curtis PMC 1204X/1205X/1209/1221 Manual
INSTALLATION CHECKOUT
Carefully complete the following checkout procedure before operating the ve-
hicle. If a step does not test correctly, use the troubleshooting guide (Section 5)
to identify the problem.
Put the vehicle up on blocks to get the drive wheels off
the ground before beginning these tests.
Don't let anyone stand in front of or behind the vehicle
during the checkout.
Make sure the keyswitch is off and the vehicle is in
neutral before beginning.
Wear safety glasses and use well-insulated tools.
A. Connect the battery. Use a voltmeter to verify that the proper voltage and
polarity appears at the battery B+ and B- terminals.
B. Check the voltage at the controller B+ and B- bus bars. If your system has a
precharge resistor in parallel with the main contactor, you should see approxi-
mately 90% of full battery voltage. If your system does not have a resistor, connect
one temporarily (100 to 200 ohms, 5 watts, or a 100 watt light bulb). The voltage
at the controller should rise to approximately 90% of full battery voltage.
C. If "A" and "B" do not check out, troubleshoot the wiring connections. Do
not proceed until the trouble is corrected and "A" and "B" check out.
D. With the forward/reverse switch in neutral, turn on the keyswitch. If the
motor runs without the throttle being applied, turn the keyswitch off and recheck
the wiring. If the motor does not run without the throttle applied, proceed with
the checkout.
E. Select a direction and slowly apply the throttle; the motor should now
respond. Look to see which direction the wheels are turning. If the wheels are
going the wrong way, turn everything off and interchange the motor field
connections.
F. If you have HPD, check it next. Turn off the keyswitch and direction switch.
Apply the throttle, turn the keyswitch on, and then select a direction. The motor
should not run. Release the throttle and re-apply it — the motor should now run.
If the motor runs before you release the throttle, recheck the wiring.
WIRING
20
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