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TROUBLESHOOTING & REPAIR | ||
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WIRE DRIVE MOTOR TEST (CONTINUED)
FIGURE F.3 – PLUG P3
MOT-MOT+
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TEST PROCEDURE
NOTE: POLARITY MUST BE OBSERVED FOR THESE TESTS.
Test for correct wire drive motor armature voltage.
1.Disconnect main input power to the machine.
2.Perform the Case Cover Removal Procedure.
3.Locate plug P3 on the wiring harness. See Wiring Diagram. Plug P3 is inserted into J3 on the Control Board.
4.Locate the MOT+ and MOT- armature leads on Plug P3. See Figure F.2.
5.Make the following voltage tests:
c)Turn the machine ON and pull the gun trigger to con- duct the voltage test.
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FROM LEAD | TO LEAD |
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MOT+ | MOT- | |
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6.If the voltage to the wire drive motor armature is zero, check the wires between plug P3 and the wire drive motor.
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WARNING
ELECTRIC SHOCK can kill.
•Have an electrician install and service this equipment. Turn the input power OFF at the fuse box before working on equipment. Do not touch electrically hot parts.
a)Turn the machine off between each test.
b)Carefully insert the meter probes into the lead side of plug P3. See Figure F.3
7.If the leads and connections are good to the board, verify the correct supply voltage
8.If voltage is correct at P3, the control board may be faulty. Replace the control board.
