Service manual

569000203E

Vanguard 245 Service Manual

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4. Pull up on the carbonated water tank relief valve ring protruding up through the drop-in

refrigeration deck to bleed off all CO2 pressure from the water tank.

5. Loosen screen retainer, then pull screen retainer and strainer screen from the water

pump.

6. Pull screen from screen retainer. Clean any sediment from the screen retainer and the

water pump screen.

7. Inspect screen for holes, restrictions, corrosion, and other damage. Discard damaged

screen.

8. Check O-Ring on the screen retainer. Replace worn or damaged O-Ring.

NOTE: A screen should always be used, otherwise particles could foul the double

liquid check valve.

9. Install screen in screen retainer, then screw retainer into the water pump and tighten

securely.

10. Proceed to Servicing Double Liquid Check Valve and service the double liquid check

valve as instructed.

SERVICING DOUBLE LIQUID CHECK VALVE

1. Service water inlet strainer screen as instructed in previous paragraph before servicing

the double liquid check valve.

2. Disconnect plain water outlet line from double liquid check valve outlet, then remove

double liquid check valve from the water pump outlet port.

3. Disassemble each check valve as shown in Figure CHECK VALVE ASSEMBLY.

4. Wipe each part with clean lint–free cloth. Inspect each part, especially the ball for burrs,

nicks, corrosion, deterioration, and other damage. Discard ball seat and any damaged

or suspicious parts and replace with new parts during reassembly.

WATER STRAINER SCREN AND DOUBLE LIQUID CHECK VALVE