Bunn G9 HD Operating & Service Manual page 10

SERVICE (cont.)
Motor (cont.)
1. Adjusting Screw Locknut
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 re-
move 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.
9
8
6. Rotor
7. Spring
8. Burr (Rotating)
9. Burr (Stationary)
4. Inspect the grind chamber and remove any for-
eign materials. The burrs will not properly seat
in the chamber if any material or coffee particles
remain.
5. Reinstall the stationary burr, spring, burr rotor,
shear plate, rotor cup, and burr housing cap to
the burr housing.
6. Refer to the Adjustments section to vary the grind
dispensed.
Page 10
7
6
5
4
3
2
1
P1311
10171 041597