Bunn G9WD, LPG-2, G2 TRIFECTA, G9-2T DBC, FPG-2 service manual MOTOR Models LPG & FPG, SERVICE Cont

SERVICE (Cont.)

MOTOR (Models LPG & FPG)

FIG. 9 MOTOR P1022

Location:

The motor is located inside the hopper assembly. Test Procedures:

1.Disconnect grinder from the power supply.

2.On Model LPG-2E, disconnect the black wire and the white wire to the motor from the main wiring harness, the red wire to the circuit breaker and the red wire to the Off/On/Start switch. On Model LPG disconnect the motor wiring harness from the main wiring harness.

3.Connect the leads of an ohm meter to the red wires from the motor.

If continuity is present the overload is good.

If continuity is not present the overload will not reset, replace the motor.

4.Set an ohm meter to read at least 20 ohms. Connect the leads from the ohm meter to the black wire and the white from the motor. The ohm reading should be approximately 18 ohms. Using the bean agitator slowly rotate the motor shaft in approximately 1/8

turn steps through one full rotation. If ohm readings are consistent motor windings are good. If readings vary more than ±1 ohm, replace motor.

NOTE: Clean all grind burrs and mounting surfaces before reassembly.

Removal and Replacement:

1.On Model LPG-2E, disconnect the black wire and the white wire to the motor from the main wiring harness, the red wire to the circuit breaker and the red wire to the Off/On/Start switch. On Model LPG disconnect the motor wiring harness from the main wiring harness.

2.On Model LPG-2E, disconnect the red wire from the left and right solenoid, the orange wire from the left solenoid and the violet wire from the right solenoid.

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FIG. 10 MOTOR REMOVAL	P1049

3.Refer to Fig 10. Remove the three #10-32 x .25” screws (1) securing the motor to the motor support bracket.

4.Remove the motor, solenoid and solenoid com- ponents (2) from the hopper housing (3) as an assembly.

NOTE: Steps 5 thru 12 apply only to Model LPG-2E.

5.Refer to Fig.11. Remove the three #8-32 Keps nuts.

6.Lift the retaining ring w/hopper gasket (1) over the motor and burr housing assembly (6). Set aside for reassembly.

7.Lift slide plate, solenoid plunger and spring (2) off of the dowel pin in the mounting ring and slide solenoid plunger and spring (2) out of solenoid coil. Set aside for reassembly. Repeat for opposite side.

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