SERVICE (cont.)

AUGER DRIVE COMPONENTS - FMD-4 (cont.)

Auger Drive Motor (Refer to Fig. 2)

1.Remove hopper assy (15), and set aside for reas- sembly.

2.Remove the four #8-32 screws securing the hop- per support plate (11), remove plate and set aside for reassembly.

3.Remove the four #8-32 screws, located inside the dispenser housing on the lower right front of the auger motor mounting panel (19), securing auger motor mounting bracket (16) and auger motor

(17)to the rear of the auger motor mounting panel

(19).

4.Disconnect the wires from the hopper drive board.

5.Remove auger motor mounting bracket (16), au- ger motor (17) and dust seal (18) as an assembly.

6.Remove dust seal (18) from auger motor (17).

7.Disconnect the wires from the auger motor (17).

8.Remove the four #8-32 screws securing the auger motor (17) to the auger motor mounting bracket

(16).

9.Remove auger motor (17) and discard.

10.Using four #8-32 screws install new auger motor

(17)on mounting bracket (16).

11.Install dust seal (18) on auger motor shaft and align notch in seal with motor casting.

12.Reconnect the wires to the terminals on the hop- per drive board.

13.Refer to Fig. 3 when reconnecting wires.

14.Using four #8-32 locking screws install auger motor, dust seal and mounting bracket to the rear of the auger motor mounting panel (19).

15.Install hopper assy (15).

STATIONS 1 - 4

RED to BRN/WHI from

Control Board #1 J3-3

RED to WHI/RED from

Control Board #1 J3-2

RED to WHI/ORN from

Control Board #1 J3-1

RED to WHI/YEL from

Control Board #2 J3-3

BLK to GRN from

Control Board J3-4

P1639

FIG. 3 AUGER MOTOR TERMINALS

AUGER DRIVE COMPONENTS - FMD-4 & FMD-5

J1

J2

J4

J3

J1

J2

J4

J3

P2635

FIG. 4 AUGER DRIVE COMPONENTS

Location

The auger components are located inside the bottom part of the hopper except for the auger drive bracket, washer and locknut, which are located on the outside bottom rear of the hopper. The auger motors are located on the rear of the auger motor mounting panel. Refer to Fig. 5 for disassembly and assembly.

Test Procedures - Auger motors

1.Disconnect the dispenser from the power source.

2.Disconnect the wires from the motor to be tested.

3.Check the voltage across the positive (white/or- ange) wire for the right motor, or the positive (white/red) wire for the left motor and the negative (green) wire with a voltmeter. With the rinse/run switch in the run (lower) position press and hold the appropriate dispense switch. Connect the dis- penser to the power supply. After a .6 second delay the indication must be 4.0 to 24.5 volts dc.

15

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Image 15
Bunn FMD-5 service manual Auger Drive Components FMD-4, To the rear of the auger motor mounting panel, Location

FMD-4, FMD-5 specifications

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