Bunn MHG Service & Repair Manual page 27

SERVICE (Cont.)
MOTOR (Models G9, G9-2, MHG)
1. Indicator Adjustment Cap & Decal
2. Adjusting Screw
3. Burr Housing Cap
4. Rotor Cup
5. Shear Plate
Removal and Replacement - GRIND CHAMBER
1. Refer to the illustration above and remove the two
1/4"-20, hex head screws holding the burr housing
cap(3) to the burr housing; carefully remove the
burr housing cap. Inspect the adjusting screw(2)
to see if the thrust plug is worn.
Replace if excessively worn or damaged.
2. Carefully remove rotor cup(4), shear plate(5), and
burr rotor(6) from the grinder. Inspect the shear
plate and burr(8) for wear.
Replace if excessively worn or damaged.
3. Remove and inspect stationary burr(9) for wear.
Replace if excessively worn or damaged.
NOTE: Burrs must be replaced as a set.
FIG. 17 MOTOR AND GRIND CHAMBER
4. Inspect the grind chamber and remove any for-
5. Reinstall the stationary burr, spring, burr rotor,
6. Refer to ADJUSTMENTS in the Installation and
27
9
8
7
6
6. Rotor
7. Spring
8. Burr (Rotating)
9. Burr (Stationary)
eign materials. The burrs will not properly seat
in the chamber if any material or coffee particles
remain.
shear plate, rotor cup, and burr housing cap to the
burr housing.
Operating Manual to vary the grind dispensed.
5
4
3
2
1
2
3
4
5
6 7 8
P1311
41545 122209
1 5 1 4
0
1 3
1
1 2
1 1
1 0
9