Bunn dispenser service manual Whipper Motor, SERVICE cont

SERVICE (cont.)

WHIPPER MOTOR

P1924

FIG. 8 WHIPPER MOTOR

Location:

The whipper motor is located on the back side of the whipper motor mounting panel.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the white/red and white/brown wires of the main wiring harness from the black leads of the whipper motor.

3.With the ULTRA hopper level lower than the probe, press and hold the SERVICE switch and check the voltage across the disconnected harness wires with a voltmeter. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for 120 volt models.

b)230 volts ac for 230 volt CE models.

4.Disconnect the dispenser from the power source.

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

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Open the dispenser door and remove the hopper assembly out the front of the dispenser.

3.Remove the four #8-32 screws securing the hopper support panel to the auger motor mounting panel and the whipper motor mounting panel.

4.Slowly lift the hopper support panel up and discon- nect the red/black and green wires from the hopper switch.

5.Pull the mixing chamber out of the whipper cham- ber.

6.Twist the whipper chamber clockwise and pull it off the whipper chamber receptacle.

7.Pull the frother off the motor shaft. Notice the flat side on the shaft and the matching flat inside the frother. It is important that these two flats are lined up when reassembling.

8.Slide the receptacle with seal off of the motor shaft.

NOTE: To remove the receptacle only, rotate clockwise until the receptacle clears the nuts and slide off of the motor shaft.

9.Slide the slinger off of the motor shaft.

10.Remove the two nuts securing the whipper cham- ber receptacle and whipper motor to the front panel.

11.Disconnect the black leads on the motor from the white/red and white/brown wires of the main wiring harness and remove the motor.

12.Install new motor on rear of front panel and secure with two nuts. Connect the black leads from the motor to the main wiring harness. Refer to Fig. 9 when reconnecting wires.

16 29793.1 021202