Bunn CDS-3 manual Auger Drive Motor, SERVICE cont

SERVICE (cont.)

AUGER DRIVE MOTOR

P1922

FIG. 4 AUGER MOTOR

Location:

The auger motor is located on the right rear of the motor assembly mounting panel.

Test procedures:

1.Disconnect the dispenser from the power source.

2.Check the voltage across the positive (red wire) terminal and the negative (black wire) terminal on the auger motor with a voltmeter. With the dispenser door open and the product level in the CDS hopper lower than the probe, press and hold the SERVICE switch. Connect the dispenser to the power supply. The indication must be 4.0 to 26.5 volts dc.

If voltage is present as described, the auger mo- tor drive is operating properly. If auger does not turn, replace the auger motor.

If voltage is not present as described, refer to wiring diagrams and check wiring harness.

Removal and Replacement:

1.Remove hopper assembly and set aside for reas- sembly.

2.Remove six #8-32 screws securing the rear cover and remove the rear cover.

3.Remove the four #8-32 screws located inside the dispenser housing on the lower right front of the auger motor mounting panel, securing the auger

motor mounting bracket and auger motor to the rear of the auger motor mounting panel.

4 Disconnect the wires from the auger drive motor.

5.Remove the auger motor mounting bracket, auger motor and dust seal as an assembly.

6.Remove the dust seal from the auger motor and discard the motor.

7.Install dust seal on the new auger motor shaft and align the notch in the seal with the motor casting.

8.Connect the wires from the auger motor to the terminals in the main wiring harness. See Fig. 5.

9.Using four #8-32 screws, install the auger motor, dust seal and mounting bracket to the rear of the auger motor mounting panel.

10.Install the hopper assembly.

11.Install the rear cover with six #8-32 screws.

RED to Control

Board (J1-1)

BLK to GRN Wire

Main Harness to

Control Board (J1-7)

P1902

FIG. 5 AUGER MOTOR TERMINALS

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