SERVICE (cont.)

VACUUM/SUPPLY PUMP TUBE INSTALLATION

ROLLERS

PUMP

HEAD

TUBING

KEY

EXIT

ENTRY

PORT

PORT

1.

Separate the pump head from the pump body.

 

Hold pump head as shown in Fig. 18, with roller

 

in the 2, 6 10 o’clock positions.

2.

Wrap tubing around rollers and hold as shown in

 

Fig. 18.

3.

Insert the slot of the tubing key (supplied), as

 

shown in Fig. 18 on the rotor so the bottom edge

 

of the key is pressing the tubing into the pump

 

head cavity.

4.

Push down and turn the key counterclockwise to

 

guide the tubing deep into the pump head cavity

 

as shown in Fig. 19.

5.

Hold the tubing and rotor in the pump head and

 

remove key carefully.

6.

Place pump body on the rotor shaft.

7.

Squeeze the pump body and pump head together

 

simultaneously until pump body and pump head

 

are touching on all sides. Be careful not to pinch

 

the tubing between the pump body and the pump

FIG. 18 TUBING START POSITION

ROTOR

ROTOR

SHAFT

P1542

head.

FIG. 19 TUBING LOADED

P1541

 

14

28791.1 011500

 

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Image 14
Bunn AF PR-3 service manual VACUUM/SUPPLY Pump Tube Installation, Head cavity

AF PR-3 specifications

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In conclusion, the Bunn AF PR-3 is a leading coffee brewer that combines speed, quality, and user-friendly technology, making it an essential piece of equipment for any commercial coffee establishment. Its ability to brew large quantities of rich, flavorful coffee efficiently, along with its durability and ease of operation, solidifies its position as a top contender in the coffee brewing market.