Bunn LCR-3 service manual Replacing the Pump Tubing

Page 20

REPLACING THE PUMP TUBING

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

 

 

 

 

 

 

 

 

 

 

 

 

 

Tension

 

 

 

 

2.0”

 

 

 

 

 

2.0”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw

 

Lubricate between arrows

 

 

Remove Retaining Plate Release Spring Tension

Remove Tubing

 

 

Lubricate New Tube

Tension Screw

 

Tube Clamp

 

Install New Tubing

Completed Installation

20

41129 030910

 

Image 20
Contents LCR-3 HV Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents IntroductionUser Notices Moving PartsElectrical Requirements Field Wiring Terminal Block Diagram Plumbing RequirementsInitial SET-UP Electrical HOOK-UPPlumbing HOOK-UP Leveling the DispenserDrip Tray Installation Operating Controls and Interface Initial Fill & Heat Alarm Level Alarm Mode Rinse Alarm FeatureRinse Procedure BIB Empty Lockout Feature Brew Temperature Lockout FeatureEnergy Saver Mode Optional 2- Product OperationProgramming the Dispenser Programming Saver Tank Temp No Exit Action BibEMPTY LockoutHRS + CAL HI WTR VOL LCD Display Actiondescription CAL Left Pump ? LeftCAL Middle Pump ? CAL MID Pump VOL WTR Start Delay WTR Stop DelayLCD Display Xxoverflow Test Refill ? Exit YES Test Heater ?Loading the Concentrate Priming the Concentrate LinesFilling Cambros or Other Large Containers Operating the DispenserTo Dispense Hot Water Cleaning & Preventative Maintenance Preventive MaintenanceWeekly Sanitizing Weekly Refrigeration AIR FilterReplacing the Pump Tubing Draining the HOT Water Tank No Display TroubleshootingPossible Cause Troubleshooting Procedures TOO LOW HeatingWater Check for BAD ConnectionsScreen Displayed Possible Cause Calibrating the Left Concentrate Pump Dispenser Flow Rate CalibrationField Calibrating the Empty BIB Warning Schematic Wiring Diagram