Bunn SRUA service manual Pump Assembly

SERVICE (cont.)

PUMP ASSEMBLY

FIG.14 PUMP ASSEMBLY P2180

Location:

The pump is located on the right of the upper component bracket.

Test Procedures:

1.Disconnect the brewer from the power source.

2.Disconnect the black wire from the black lead on the pump and the red wire from the black lead on the pump.

3.With a voltmeter, check the voltage across the black wire and the red wire with the swing arm switch plunger depressed. Connect the brewer to the power source. The indication must be 230 volts ac.

4.Disconnect the brewer from the power source.

If voltage is present as described, reconnect the wires to the pump. Install swing spout and position over the reservoir. Place the ON/OFF in the "ON" (upper) posi- tion and push the start switch and release. If pump does not run, replace the pump.

If voltage is not present as described, refer to the wiring diagrams and check the brewer wiring harness.

Removal and Replacement (Refer to Fig. 15):

1.Disconnect the wires from the pump assembly.

2.Loosen the #8-32 screw (2) securing the clamp (3) on the fill tube (1) and slide the clamp (3) up the fill tube (1).

3.Disengage the fill tube (1) from the pump assem- bly (4).

4.Remove the four #8-32 screws (6) securing the pump assembly (4) to the component bracket (7).

5.Remove pump assembly (4).

6.Remove pump gasket (5) and inspect, replace if necessary.

7.Position gasket (5) on component bracket (7).

8.Install new pump assembly (4) on component bracket (7) and secure with four #8-32 screws (6).

9.Install fill tube (1) on pump assembly (4).

10.Slide clamp (3) down into position on the fill tube

(1) and tighten screw (2).

11.Refer to Fig. 15 and reconnect the wires.

RED from Brew Timer

BLK from Swing Arm

1Switch

2
3	6
4
5
	7

FIG.15 PUMP INSTALLATION P2177

Page 21 10067.3 070102