Bunn FMD-3 service manual FROTHER AND WHIPPER MOTOR cont, SERVICE cont

SERVICE (cont.)

FROTHER AND WHIPPER MOTOR (cont.)

Removal, Cleaning and Replacement (Refer to Fig. 12):

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

2.Lift the front edge of the each hopper assembly over the tab on the hopper support panel and slide each hopper assembly out the front of the dispenser. Set aside for reassembly.

3.Remove the four #8-32 screws securing the hop- per support panel to auger motor mounting panel and the whipper motor mounting panel. Set aside for reassembly.

4.Disconnect vacuum hose (16) from fan baffle (17).

5.Remove the two #4-40 x .25" screws securing the fan baffle(17) to the whipper motor mouting panel and remove fan baffle. Set aside for reas- sembly.

6.Remove the steam collector (1) by pulling it for- ward and at the same time twisting it clockwise.

7.Pull the mixing chamber (2) out of the whipper chamber (4).

8.Remove dispense tip (3) and twist the whipper chamber (4) clockwise and pull it off the whipper chamber receptacle (8).

9.Pull the frother (6) 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.

10.Slip the o-ring (5) off the whipper chamber receptical (8).

11.Remove the two #6-32 screws (7) securing whip- per chamber receptical (8) to the front panel.

12.Slide the receptical w/seal off of the motor shaft.

13.Slide teflon washer (9) and o-ring (10) off of the motor shaft.

14.Disconnect the black leads on the motor (12) from the main wiring harness.

15.Remove the two #8-32 acorn nuts (11) securing the motor (12) to the rear of front panel.

16.Remove motor and discard.

17.Install new motor (12) on rear of front panel and secure with two #8-32 acorn nuts (11) and con- nect black leads on the motor to the main wiring harness. Refer to FDig. 13 when reconnecting wires

18.Slide o-ring (10) onto the motor shaft to approxi- mately 1/16" of the front panel.

19.Wash remaining components in a mild solution of dish detergent using a bristle brush.

20.Rinse thoroughly and allow to dry before reinstall- ing in the dispenser.

21.Place teflon washer into back opening of whipper chamber receptical and align one notch with bump in the opening.

22.Slide whipper chamber receptacle w/seal on to the motor shaft and secure to the front panel using two #6-32 screws (7).

23.Slip o-ring (5) onto the whipper chamber receptical

(8).

24.Push frother (6) onto the motor shaft, making sure the flat in the frother (6) lines up with the flat on the motor shaft.

25.Install whipper chamber (4) on the whipper cham- ber receptical (8) by twisting counterclockwise until the tabs on the whipper chamber (4) lock with the tabs on the whipper chamber receptical (8). Be sure dispense port is pointing down.

26.Install dispense tip (3) into the bottom of the whipper chamber (4). Be sure the cutout part of the dispense tip is facing the outside of the dis- penser.

27.Using two #4-40 screws secure the fan baffle to the to the whipper motor mounting panel.

28.Install vacuum hose (16) on fan baffle (17).

29.Install hopper support panel using four #8-32 screws.

30.Slip the mixing chamber (2) onto the mixing chamber water inlet tube far enough so the mixing chamber (2) will seat inside the whipper chamber

(4).

31.Install the steam collector (1) onto the mixing chamber (2) by pushing down and toward the dispenser while twisting until the flange on the steam collector lines-up with the slot in the front panel.

32.Install hopper assembly in the dispenser by sliding hopper assembly on the hopper support panel until the slot in the bottom rear of the hopper seats against the shoulder screw in the hopper support panel.

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