Bunn LCR-3 User Manual

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The pumps and tubing used in this dispenser are designed to give maximum performance and long life. However, 

the tubes are a wear item and must be replaced periodically. How long the tubes last is dependent on usage and 

properties of the concentrate. Excessive wear will reduce the output of the pumps resulting in a weak mixed 

beverage. 

Refer to the Tube Replacement Instruction on the Cabinet door for details.

1.  Rinse the pump tubing with warm tap water (Refer to step 5 of the Weekly Sanitizing instructions) prior to 

removing the tubes to avoid concentrate spills.

2.  Loosen  the  thumbscrew  securing  the  tubing  retainer  plate  to  the  pump  housing.  Set  the  retainer  plate 

aside.

3.  Depress the tension screw and remove it from the notch in the pump housing, releasing the tube compression 

band.

4.  Open the compression band and gently pull the pump tube from around the pump’s rotor.

5.  Inspect the pump bands for signs of cracking or excessive wear. Replace if necessary.

6.  Apply lubricant (BUNN-O-MATIC part number M2531.0001) to the new pump tubing’s rotor side.

7.  Insert the tube onto the mix chamber port, then wrap the new tubing around the pump rotor, making sure 

the elbow and clamps end up on the bottom side of the pump housing.

8.  Depress the tension screw and insert it in the notch in the pump body, reapplying spring tension to the 

compression band.

9.  Replace the tubing retainer plate and tighten the thumbscrew.

10. Repeat steps 1 through 9 for the other two pumps.

Note: Replacement Tube/Adapter Kits can be purchased from BUNN-O-MATIC.

Remove Retaining Plate Release Spring Tension

Remove Tubing

Lubricate New Tube

Install New Tubing

Completed Installation

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