Bunn G2 TRIFECTA, LPG-2, G9WD, G9-2T DBC service manual Rectifier Models G1 MD, FPG-2 DBC

SERVICE (Cont.)

Rectifier (Models G1 MD, FPG-2 DBC)

FIG. 36 RECTIFIER P1706

Location:

The rectifier is located inside the grinder housing mounted on the rear of the motor mounting bracket for models G1 MD and on the component mounting bracket for model FPG-2 DBC.

Test Procedures:

1.Disconnect the grinder from the power source.

2.Remove the red wire and the black wire from the rectifier.

3.Check the voltage across the (+) and (-) termi- nals on the rectifier with a voltmeter. Connect the grinder to the power source and start the grinder motor. The indication must be approximately 108 volts dc.

4.Disconnect the grinder from the power source.

If voltage is present as described, the rectifier is op- erating properly.

If voltage is not present as described, refer to the grinder wiring diagram and check the grinder wiring harness.

Removal and Replacement:

1.Disconnect the wires from the rectifier.

2.Remove the #10-32 screw securing the rectifier to the motor mounting bracket.

3.Remove the rectifier and discard.

4.Install new rectifier on the rear of the motor mount- ing bracket and secure with a #10-32 screw.

5.Refer to Fig. 37 and reconnect the wires.

BLK from Motor (+)

BLU to BLU from Motor (AC)

WHI from Main Harness (AC)

RED from Motor (-)

	A
+	C
	A
	C

	P1381
FIG. 37 RECTIFIER TERMINALS

38 41545 122209