Bunn Dual TF BrewWISE DBC Guía para resolver problemas descargar pdf (Pagina 19)

Bunn-O-Matic Corporation

Preventive Maintenance

In order to maintain proper operation and long service life BUNN recommends performing the preventive mainte-

nance every 6 months. Individual customers will vary with some customers choosing not to receive preventive main-

tenance.

Tools Required:

• 2 Flat blade screwdrivers (#1 - #2)

• Phillips screwdriver

• 2 adjustable wrenches

• Channel lock pliers

• Needle nose pliers

• Deliming tool BUNN PN: 38227.0000

Prior to servicing the brewer:

• Disconnect the electrical supply

• Shut off the water supply

• Drain the water tank

• Remove the front panel

• Remove the top panel

PM Steps

IfcustomerhasaBUNNwaterltrationsysteminstalledbeforethebrewer,replacethelterorltercartridgeand

purge before installing to the brewer.

Step 1: Rebuild the inlet solenoid

□ Shut off the water supply.

□ Removebothwiresfromtherellvalve.

□ Disconnect both water lines at the valve.

□ Remove the two 1/4”-20 screws securing the valve

to the component mounting bracket.

Step3:Removeandcleanthelltube

□ Usinganadjustablewrenchremovethetubettingfromthelltubeontopofthetank

□ Gentlypullthelltubeoutofthetopofthetank

□ Wipe any mineral deposits from the exterior of the tube

□ Clean any mineral deposits from the bottom of the tube

□ Clean any obstructions from the interior of the tube

□ Reinstallation is the opposite of removal

Step 4: Rebuild the by-pass solenoids

□ Remove the hose clamps that secure the tubing to the valve

□ Remove the two nuts that hold the solenoid bracket to the machine

□ Gently remove the tubing from the valve body

□ Usingaatbladescrewdriver,removethefourscrewsandseparatethevalveassembly

□ Replace plunger, spring, and rubber seat using the rebuild kit.

□ Clean any mineral build-up from the valve

□ Reassembly is the opposite of disassembly

Step 5: Rebuild the dispense solenoids

□ Disconnect the wire leads to the solenoid

□ Unscrew the sprayhead from the bottom of the valve

□ Remove the securing nut from the bottom of the valve

□ Removetheclipfromthetubeonthevalvetting

□ Removethetubefromthebarbedttingontherearofthevalve

□ Remove the valve from the brewer

□ Remove the four Phillips head screws and disassemble the valve

□ Replace plunger, spring, and rubber seat using the rebuild kit. BUNN P/N: 11517.0008

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