Bunn FMD-3 If voltage is present as described, proceed to #5, Off of the auger drive shaft

Page 13

SERVICE

AUGER DRIVE COMPONENTS (CONT.)

4. Disconnect the dispenser from the power supply.

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

If voltage is not present as described, refer to the wir- ing diagrams and check the dispenser wiring harness.

5.With the wires removed from the motor to be tested. Check for continuity across the two ter- minals on the bottom of the auger motor.

If continuity is present as described, reconnect the wires to the terminals on the bottom of the auger motor, the auger motor is operating properly.

If continuity is not present as described, replace the auger motor.

Removal, Cleaning and Replacement

Hopper & Auger

1.Open the dispenser door and raise the top front cover.

2.Lift the front edge of hopper assy (21) over the tab on hopper support plate (20) and slide hop- per assembly out the front of the dispenser.

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

4.Pull off the ejector elbow (14).

5.Remove auger disc assy (2) by pulling agitator support rod (4) towards agitator disc assy and lifting agitator disc assy from hopper (10).

6.Remove auger (12) by pulling it out the front of the hopper (10).

7.Remove auger drive shaft (5) by removing the retaining clip (6) from auger drive shaft.

8.Slide washer (8) and auger drive shaft bracket

(7) off of the auger drive shaft (5).

9.Slide auger drive shaft (5) from auger drive shaft bushing (3) and remove from hopper (10).

10.Remove locknut (9) from auger drive shaft bush- ing (3) and remove auger drive shaft bushing from hopper (10).

11.Wash components in a mild solution of dish de- tergent using a bristle brush when needed.

12.Rinse and dry each item thoroughly.

13.Check for damaged or broken components, re- place any if necessary and reassemble hopper assy.

	1	4
	2
		11
	3	6
	5	13
		13
	7
	8	12
	8	14
	9	14
	9
	10
		21
	16 17	18 15 19 20
		P1446.75
	FIG. 2 AUGER DRIVE & HOPPER DISASSEMBLY

1.	Hopper Lid	12.	Auger Wire
2.	Agitator Disc Assy	13. Auger Wire/Restrictor
3.	Auger Drive Shaft		(Optional)
	Bushing	14.	Ejector Elbow
4.	Agitator Support Rod	15.	Auger Motor Mount-
5.	Auger Drive Shaft		ing Panel
6.	Retainer Clip	16.	Auger Motor Bracket
7.	Auger Drive Bracket	17.	Auger Motor
8.	Washer	18.	Dust Seal
9.	Locknut	19.	Shoulder Screw
10.	Hopper	20. Hopper Support plate
11.	Spring	21.	Hopper Assy
13			28364 011598
13

Image 13

Contents Phone 217 529-6601 FAX 217 Post Office BOX SPRINGFIELD, IllinoisFMD-2 FMD-3 BUNN-O-MATIC Commercial Product Warranty28368.0000 00656.0000 00831.000026536.0002 FMD-2Initial SET-UP Plumbing HOOK-UP Initial Fill & HeatDraining the HOT Water Tank Remedy Problem Probable CauseReplacement Control thermostat TroubleshootingStat for testing procedures. See Dripping from dispense tip Lime build-up Product overflows container Dispense switchLeaks ColdProbable Cause Remedy ProblemDispenser is making unusual Refer to Service Lamp, see page 23 for lamp replacementNoises Water Supply Tank Heater Excess dust Fan Display not lit Lamp Lamp Holder Starter Lamp BallastContents Component AccessAuger Drive Components If voltage is present as described, proceed to #5 Hopper Lid Auger Wire Agitator Disc AssyOff of the auger drive shaft Auger Drive Shaft Optional Bushing Ejector ElbowRemove dust seal 18 from auger motor Auger Drive ComponentsBallast Refer to when reconnecting the wiresHarness BLK to BLU From Door Interconnect Control Thermostat Remove temperature probe from the tankControl Thermostat Dispense SwitchLocation FAN Dispense SwitchLocation Frother and Whipper Motor FANSteam Collector Ring Mixing Chamber #8-32 Acorn Nut Washer Ring Nut FrotherFrother and Whipper Motor Whipper Motor Terminals P1451.40 Hopper Delay BoardDisconnect the wires from the switch termi- nals HOT/COLD Switch OptionalLamp Holder Lamp Replacement Refer to FigDoor Assy Upper Panel Lamp Holders Lower Panel Remove the outside window and display graphicLamp Starter and Socket As assemblyLevel Control Board and Level Probe Level Control Board and Level Probe Limit Thermostat Limit ThermostatFrom Main Harness Overflow Protection SwitchBoard RINSE/RUN Switch Rinse /RUN SwitchCold Water Solenoid Valve Solenoid Valve Cold Water OptionalSolenoid Valves Dispense Cold Water Solenoid TerminalsSolenoid Valve Inlet Solenoid Valves DispenseTank Heater Solenoid Valve InletTank Heater Switch Main Wiring Thermostat HarnessTank Heater Tank Heater Switch Terminals Tank Heater SwitchSchematic Wiring Diagram FMD-1, FMD-2, & FMD-3 Schematic Wiring Diagram FMDA-1, FMDA-2, & FMDA-3