Cornelius R-404A REFRIGERANT service manual SELF-CLOSING Dispensing Valve

SPRING HOUSING	RETAINING
	SCREW(2)
TORSION SPRING
SPRING FITTING	HOLD-DOWN
	PLATE(2)
DISPENSING
VALVE BODY

CAGED O-RING

VALVE

LEVER

SLEEVE

SPRING

KNOB

FIGURE 7. SELF-CLOSING DISPENSING VALVE

3.Carefully remove large O-RING (item 5) from FACEPLATE (item 8).

4.Unscrew RELIEF VALVE (item 9) from FACEPLATE (item 8).

5.Disassemble dispensing valve (see Figure 7) as follows:

A.Remove two screws and hold-down plates securing spring housing to dispensing valve body, then re- move housing.

B.Remove torsion spring from dispensing valve.

C.Remove knob, spring, sleeve, and lever from dispensing valve.

D.Remove spring fitting from dispensing valve.

E.Press valve, with caged O-ring, down and out of dispensing valve body.

F.Carefully remove caged O-ring from valve.

6.Wash all parts in warm water. Remove all traces of syrup and lubricant, especially from faceplate, O-rings, and dispensing valve. If parts are excessively coated, wipe clean with paper towel to remove syrup and lubricant, especially from caged O-ring and dispensing valve. Use BRUSH (item 3, Table 3) to clean face- plates relief valve passages.

7.Submerge all parts in 4 percent solution of approved sanitizing agent for time recommended by sanitizer manufacturer.

8.Remove parts from sanitizing solution and place on clean paper towels.

NOTE: Use Dow-Corning DC-111 (P/N 321471000) light grade silicone lubricant.

9.Assemble dispensing valve as follows:

A.Lubricate caged O-ring. Carefully install caged O-ring on valve from straight end (opposite tapered end). Lubricate grooves in which O-ring rides to fill in all void areas around O-ring.

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