Cornelius R-404A REFRIGERANT Servicing Carbonator Water Pump Double Liquid Check Valve

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Index	Part
No	No	Name
1	317965000	Retainer
2	312196000	Spring
3	312419000	Ball
4	312415000	Washer, .300 I.D.
5	312418000	Quad Ring
6	317963000	Body

*Install new ball seat each servicing.

FIGURE 11. LIQUID CHECK VALVE ASSEMBLY

SERVICING CARBONATOR WATER PUMP DOUBLE LIQUID CHECK VALVE

(see Figures 2 and 12)

1.Service water pump water strainer screen before servicing the water pump double liquid check valve.

2.Disconnet carbonator water line from double liquid check valve assembly outlet.

3.Remove double liquid check valve assembly from elbow in water pump outlet port. Retain white tapered gasket inside (female) end of double liquid check valve.

4.Disassemble each check valve as shown in Figure 11.

5.Wipe each part with a clean lint-free cloth. Inspect each part, especially ball for burrs, nicks, corrosion, deterioration, and other damage. Discard ball seat and any damaged or suspicious parts and replace with new parts during reassemble.

6.Reassemble liquid check valves as shown in Figure 11. ALWAYS INSTALL NEW BALL SEAT (QUAD RING) P/N 312418000.

NOTE: Make sure when assembling check valves together, check to ensure the valve female end (with white tapered gasket inside) is on inlet side of double liquid check valve assembly.

7.Assemble check valves together. DO NOT OVERTIGHTEN.

8.Make sure white tapered gasket is in place inside female end of double liquid check valve assembly, then install check valve assembly on elbow in water pump outlet port.

9.Connect carbonator tank water line to double liquid check valve assembly outlet. DO NOT OVERTIGH- TEN.

53 312028000