Owner`s manual

2008 AFG Service Seminar [rev 1.3] | 33
Section Two | Voltage Checks
Drive Motor Connection
Procedures:
Using a dc volt meter (if non-auto ranging set for the 200vdc range), test the voltage at the red and black motor
leads with the motor still attached.
Note: This should be tested after the console cable and optic sensor points because they can give the same
results as a defective lower board.
Note: A non-functional system may still have a voltage present with no motor attached. For accurate results, the
motor must be attached when the voltage is checked.
Desired Results:
The voltage charts contain typical desired results on a fully functional system. A variance from the norm would
indicate a defective component.
Checkpoint Voltage Before Start Voltage After Start @
0.5mph
Volatge After Start @ 10.0mph
Across Motor Out,
No Motor
Attached
0.0-22.5 vdc 0.0-22.5 vdc 0.0-22.5 vdc
Across Motor Out,
W/ Motor
Attached
0.0 vdc 2.5- 0 vdc 80-100.0 vdc
Drive Motor Checkpoints
Procedures:
Unplug the motor from the lower board. Using a dc volt meter (if non-auto ranging set for the 20vdc range), attach
volt meter leads directly into the motor leads and turn the running belt.
Desired Results:
The motor should generate 5-15 vdc depending on the speed it is turned.
Procedures:
Unplug the motor from the lower board. Using an ohm meter (if non-auto ranging set for the 200 ohm range),
attach ohm meter leads directly into the motor leads.
Desired Results:
The motor should read approximately 1.0-1.5 ohms.
>> No Motor Movement Voltage Checkpoints Continued