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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.
Bunn-O-Matic recommends replacing the Pump Tubing a minimum of once every 6 months or sooner, if
warranted.
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.
Thumbscrew
Remove Retaining Plate
REPLACING THE PUMP TUBING
Tension
Screw
Release Spring Tension
Tension Screw
Tube Clamp
Install New Tubing
Remove Tubing
Completed Installation
20
2.0"
2.0"
Lubricate between arrows
Lubricate New Tube
41129 030910
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