Bunn LPG-2, G9WD, G9-2 SERVICE Cont, AC MOTOR AND GRIND CHAMBER cont, Grind Chamber Components

SERVICE (Cont.)

AC MOTOR AND GRIND CHAMBER (cont.)

						18	1	19	17
	20	7	6	4	5
	11	10	9	8	3
14					2	1		16
	13
15	7
	12
	FIG. 5 GRIND CHAMBER COMPONENTS								P1708

Removal and Replacement - Grind Chamber - Fig. 5:

1.Loosen the two set screws (16) securing the grind selector knob to the grind selector dial plate (18) and remove knob.

2.Remove the adjusting screw w/bearing (19). Inspect adjusting screw w/bearing for wear. Replace if exces- sively worn or damaged.

3.Remove the two .250”-20 screws (1) securing the grind selector dial plate (18) to the grind housing.

4.Slide burr auger rotor/spring assembly (3) off of the grinder motor shaft with burr rotor cup (5), shear plate

(4)and burr (7) as an assembly.

5.Remove burr rotor cup (5) and shear plate (4) from burr auger rotor/spring assembly (6). Inspect shear plate (4) for wear. Replace if excessively worn or damaged.

6.Remove the two .250” screws (20) securing burr (7) to burr auger rotor/spring assembly (6) and remove burr

(7).Inspect burr (7) for wear. Replace if excessively worn or damaged.

7.Remove the two .250”-20 screws (8) securing the sta- tionary burr (9) to grind chamber housing and remove burr. Inspect for wear. Replace if excessively worn or damaged.

NOTE: Burrs are serviced in sets of two with hardware.

8.Clean all grinding burrs and mounting surfaces before reassembly.

9.Remove bushing (10) and shaft extension (11) from grinder motor shaft. Inspect for wear. Replace if exces- sively worn or damaged.

10.Install shaft extension (11) and bushing (10) onto the grinder motor shaft.

11.Install stationary burr (9) inside the grind chamber and secure with two .250” -20 screws (8).

12.Install burr (7) on burr auger rotor/spring assembly (6) securing with two .250”-20 screws (20).

13.Slide burr auger rotor/spring assembly and burr (3) onto the motor shaft.

14.Align the slot in the shaft extension and the slot in the burr auger rotor/spring assembly and install shear plate

(4).

15.Install burr rotor cup (5) onto the burr auger rotor/spring assembly (6).

16.Install the adjusting screw w/bearing (19) into the grind selector dial plate (18).

17.Install grind selector dial plate (18) with adjusting screw w/bearing (19) onto the grind chamber and secure with two .250”-20 screws (1).

18.Install grind selector knob (17) onto the grind selector dial plate (18).

NOTE: Refer to ADJUSTMENTS in the Installation and Op- erating Manual, and reset the burrs.

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