Bunn Beverage Dispenser FMD-5 Manual De Usuario

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J4

J1

J2

J3

J4

J1

J2

J3

FIG. 2  AUGER DRIVE COMPONENTS

Location

 

The auger components are located inside the bottom 

part of the hopper except for the auger drive bracket, 

spacer and retaining clip, which are located on the 

outside rear of the hopper base. The auger motor is 

located on the  lower right rear of the motor mounting 

panel. Refer to Fig. 3 for disassembly and assembly.

Test Procedures - Auger Motor

1.  Disconnect the dispenser from the power source.

2.  Disconnect the white/red wire and the white wire 

from the hopper drive board (FMD-1) or relative 

wires from the control board(all other models).

3.  Check the voltage across the white/red wire and 

the white wire with a voltmeter. With the rinse/

run switch in the run (lower) position, connect the 

dispenser to the power supply. The indication must 

be:

 

a) 120 volts ac for two wire 120 volt models.

  b)120 volts ac for three wire120/208 volt or 

120/240 volt models.

 

c) 230 volts ac for two wire 230 volt models.

4.  Disconnect the dispenser from the power supply.

P4095

If voltage is present as described, proceed to #5.

If voltage is not present as described, refer to the wiring 

diagram and check the dispenser wiring harness.

5.  Check the voltage across the positive (red wire) 

terminal and the negative (black wire) terminal on 

the auger motor with a voltmeter. With the rinse/

run switch in the run (lower) position press and 

hold the dispense switch. Connect the dispenser 

to the power supply. After a .6 second delay the 

indication must be 4.0 to 24.5 volts dc.

If voltage is present as described,  the auger motor drive 

is operating properly. If auger does not turn,  replace 

the auger motor.

If voltage is not present as described, check the auger 

hopper drive board.

Removal, Cleaning and Replacement

Hopper & Auger (FMD-1,4)

1.  Open the dispenser door and raise the top front 

cover.

2.  Lift the hopper assy (15) over the pins on hopper 

support plate (11) and slide hopper assembly out 

the front of the dispenser.

3.  Remove hopper lid (1) and empty product.

4.  Pull off the ejector elbow (14).

5.  Remove retainer clip (10) and washer (9) from the 

bottom of the hopper base (8).

6.  Remove whipper shaft (3), wiper blade (4) and 

wiper drive gear (5) from the hopper base (8).  

7.  Remove auger  wire (13) by pulling it out the front 

of the hopper base (8).

8.  Remove auger drive bracket (6) by unscrewing left 

hand threads from auger drive shaft (12). 

9.  Slide spacer (7) and auger drive shaft bracket (6) 

off of the auger drive shaft (12).

10. Remove auger drive shaft (12) from hopper base 

(8). 

11. Wash components in a mild solution of dish deter-

gent using a bristle brush when needed.

12. Rinse and dry each item thoroughly.

13. Check for damaged or broken components, replace 

any if necessary and reassemble hopper assem-

bly.

14. Install hopper assy (15) in  the dispenser by sliding 

hopper assy  on the hopper support plate (11) until 

the slot in the rear of the hopper base (8) seats 

against the pins in the hopper support plate (11).

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