Cornelius R-134A service manual Liquid Check Valve Assembly

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Item
No.	Part No.		Name
1	5470E	Flat Washer
2	312418000	Ball Seat (Quad Ring)
3	312419000	Ball
4	5470D	Spring

FIGURE 10. LIQUID CHECK VALVE ASSEMBLY

NOTE: When indicator on the CO2 cylinder primary CO2 regulator assembly 1800-psi gage is in the shaded (‘‘change CO2 cylinder’’) portion of the dial, the CO2 cylinder is almost empty and should be changed.

1.Fully close (clockwise) the CO2 cylinder main shutoff valve.

2.Slowly loosen primary the CO2 regulator assembly coupling nut allowing CO2 pressure to escape, then remove the regulator assembly from the empty CO2 cylinder.

3.Unfasten safety chain and remove the empty CO2 cylinder.

WARNING: To avoid personal injury and/or property damage, always secure the CO2 cylinder in an upright position with a safety chain to prevent it from falling over. Should the valve become accidentally damaged or broken off, the CO2 cylinder can cause serious

personal injury.

4.Position full CO2 cylinder in an upright position and secure with a safety chain.

5.Make sure a gasket is in place inside the primary CO2 regulator coupling nut, then install regulator on the CO2 cylinder.

6.Open (counterclockwise) the CO2 cylinder main shutoff valve slightly to allow the lines to slowly fill with gas, then open the valve fully to back-seat the valve. (Back-seating the valve prevents leakage around the valve shaft).

7.Check all CO2 connections for leaks. Tighten any loose connections and repair any leaks.

REPLENISHING SYRUP SUPPLY

NOTE: The following instructions are applicable only when replenishing same flavor syrup. Refer to SYRUP FLAVOR CHANGE when changing syrup flavor.

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