Bunn JDF Silver Series Technical Training Manual page 21

□ Using a flashlight, shine the light through the condenser fins to re-check for cleanliness or dirt between the fins.
□ Heavy build-up of grease in the condenser may require the use of a commercial condenser cleaner.
□ Follow the manufacture warning and safety instructions along with how to instructions supplied with the cleaner.
Step 5: Replacing the peristaltic pump tubing.
□ Open dispenser door.
□ Remove all product containers and place them in a refrigerated, (35-40º F [1.6-4.4º C]), environment. Disconnect
all connections to ambient products from the bottle adapter.
□ Rinse all dispense stations using steps outlined in "DAILY RINSE PROCEDURE" in the operating manual.
□ Disconnect dispenser from power source.
□ Remove the dispense platform cover.
□ Disconnect the dispense platform water line(s) from the supply line inside the refrigerated cabinet and disconnect
the wiring connection(s) from the cabinet receptacle(s).
□ Remove the mounting screw(s) securing the dispense platform(s) to the cabinet.
□ Pull the dispense platform(s) completely out of the cabinet and place it on a flat work surface.
□ Close the dispenser door.
□ Remove the 4 screws securing the pump head.
□ Gently pull the pump head apart.
□ Gently pull the pump tube from around the pump's rotor.
□ Release the clamps securing the old pump tubing to the plastic elbows.
□ Pull the plastic elbows from the old pump tubing, and discard the old pump tubing.
□ Insert the plastic elbows into the new pump tubing and secure it with the clamps.
□ Gently wrap the new pump tubing around the pump's rotor.
□ Reassemble the pump housing onto the platform assembly.
□ Repeat this process for the remaining pumps.
□ Replace the dispense platform(s) into the refrigerated cabinet, making sure to reconnect all electrical and water
connections.
□ Replace the dispense platform cover.
□ Turn power on to dispenser.
□ Install containers of rinse water, run each station and check for leaks. Repair leaks as necessary.
□ Replace product shelf and product containers. Reconnect any connections to ambient product containers.
□ Prime the pumps.
Step 6: Follow the daily parts washing procedure in the operating manual.
□ Remove and wash the dispense nozzle(s); mixing element(s), drip tray and drip tray cover in a mild detergent
solution. Rinse thoroughly.
□ Wipe splash panel, areas around dispense nozzle(s), and refrigerated compartment with a clean, damp cloth.
□ Inspect door seal gasket for wear and cleanliness.
Step 7: Examine all electrical connections and power cord for loose connection.
Step 8: Examine all water lines and supply for leakage.
Step 9: Check cabinet temperature with thermometer (Note: The dispenser must be on to perform this step).
□ Install thermometer in cabinet and monitor temperature to see if it comes down below 41 degrees Fahrenheit.
Good idea always to leave thermometer in cabinet to monitor proper cooling process and temperature.
□ Check for proper air flow inside cabinet around product.
Step 10: Check product mix brix/ratio in their corresponding dispense station (Note: The dispenser must be on to
perform this step).
□ Water Flow Test and Adjustment
Step 1: Place the pitcher beneath the dispense nozzle you are testing.
Step 2: Place the "Dispense Lockout" switch in the Off position and access the internal program switch and
turn it ON.
Step 3: Press and release the appropriate dispense button, ("Stop/Plus" button if using portion control
option). The machine will dispense water from the dispense nozzle for 3 seconds.
Step 4: Measure the water dispensed.
Step 5: Adjust the water flow if needed, (see water flow chart in the "Installation and Operating Guide").
Clockwise will increase flow rate and counterclockwise will decrease the flow rate.
Step 6: Mark the quantity of water dispensed on the total dispense ratio chart.
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