Bunn FPG-2 Manual De Usuario

36

FIG 32 BATCH SELECTOR SWITCH

Location:

 

The batch selector switch is located on the left front 

of the hopper housing.

Test Procedure:

1.  Disconnect the grinder from the power source.

2.  Open hopper lid and loosen four screws inside the 

hopper and remove hopper.

3.  The ORN wire is connected to the common terminal 

"a" on the rear of the switch.

4.  The TAN wire for the SMALL selection is connected 

to terminal 1, the GRY wire for the MEDIUM selec-

tion is connected to terminal 2, the PNK wire for 

the LARGE selection is connected to terminal 3.

5.  Remove all wires from the switch terminals.

6.  Set the switch in the SMALL position. Check for 

continuity between terminal "a" and terminal 1.

7.  Set the switch in the MEDIUM position. Check for 

continuity between terminal "a" and terminal 2.

8.  Set the switch in the LARGE position. Check for 

continuity between terminal "a" and terminal 3.

P787

FIG 33 BATCH SELECTOR SWITCH TERMINALS

P2947

TAN to POTENTIOMETER

GRY to POTENTIOMETER

PNK to POTENTIOMETER

ORN to TIMER

If continuity is present at all positions, the switch is 

operating properly.

If continuity is not present at any position, replace the 

switch.

9.  Refer to the Fig. 33 when reconnecting wires.

Removal and Replacement:

1.   Disconnect the grinder from the power source. 

2.  Remove the four 8-32 screws attaching the rear 

access panel and move aside.

3.  Remove all wires from the batch selector switch 

terminals.

4.  Loosen the setscrew on the switch knob and remove 

the knob.

5.  Remove the nut and lockwasher attaching the switch 

to the hopper housing.

6.  Remove the 6-32 screw attaching the switch to the 

hopper housing.

7.  Remove and discard the old switch.

8.  Refer to Fig 33 when reconnecting wires.

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