Bunn G1, G9WD, G9-2T DBC, FPG-2 service manual Timer Model LPG-2E, SERVICE Cont, P1061

SERVICE (Cont.)

Timer (Model LPG-2E)

FIG. 48 TIMER P1061

Location:

The timer is located inside the hopper housing just behind the left solenoid.

Test Procedure:

1.Disconnect grinder from the power source.

2.Insert the leads of a voltmeter set to read at least 120 volts AC, along side the red wire (terminal 8) and the white wire (terminal 2) of the harness plug. Place the Off/On/Start switch in the “ON” center position. Connect the grinder to the power source. The indication must be 120 volts AC.

3.Disconnect the grinder from the power source.

If voltage is present as described, proceed to step #4.

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

4.Place the hopper selector switch in the left posi- tion.

5.Insert the leads of a voltmeter set to read at least 120 volts AC, along side the red wire (terminal 8) and the orange wire (terminal 10) of the harness plug. Place the Off/On/Start switch in the “START” lower position. Connect the grinder to the power source. The indication must be 120 volts AC for the set gate time and return to 0 volts.

6.Disconnect the grinder from the power source.

If voltage is present as described, proceed to step #7.

If voltage is not present as described, replace the timer.

7.Place the hopper selector switch in the right posi- tion.

8.Insert the leads of a voltmeter set to read at least 120 volts AC, along side the red wire (terminal 8) and the violet wire (terminal 9) of the harness plug. Place the Off/On/Start switch in the “START” lower position. Connect the grinder to the power source. The indication must be 120 volts AC for the set gate time and return to 0 volts.

9.Disconnect the grinder from the power source.

If voltage is present as described, proceed to step#10.

If voltage is not present as described, replace the timer.

10.Insert the positive (+) lead of a volt meter set to read at least 120 volts DC, along side the black wire (ter- minal 7) of the harness plug and insert the negative (-) lead along side the white/black wire (terminal 6) of the harness plug. Place the Off/On/Start switch in the “START” lower position. Connect the grinder to the power source. The indication must be 120 volts DC for the set gate time plus clean out time and return to 0 volts.

If voltage is present as described the timer is operating properly.

If Voltage is not present as described, replace the timer.

Removal and Replacement:

1.Disconnect the main wiring harness plug from the terminal block on the timer.

2.Remove the two timer dial knobs located on the rear panel of the grinder.

3.Remove nut and internal tooth lockwasher securing dials to the rear panel.

4.Loosen the two #8-32 pan head screws securing the timer and timer mounting bracket to the motor support plate.

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