With A Charging Stand; Charging Stand - Piper Dakota Maintenance Manual

WITH A CHARGING STAND

This is the preferred method for system charging.
The following instructions apply to Kent Moore, J23500 charging
stand. (Refer to figure 21-8.)
1. With system discharged and evacuated, hook-up charging stand. (Refer to figure 21-9.)
2. Fill charging cylinder by opening valve at base of charging cylinder and filling sight glass with two
pounds of liquid refrigerant.
3. If refrigerant stops filling sight glass, open valve at top of gauge neck assembly intermittently to
relieve head pressure and allow refrigerant to continue filling sight glass to required amount.
4. When refrigerant reaches required level in sight glass, close both valve at base of cylinder and valve at
bottom of refrigerant tank. Be sure top valve is fully closed.
If bubbling occurs in sight glass, reopen the cylinder base valve
momentarily to equalize drum and cylinder pressure.
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
Figure 21-8. Charging Stand
—NOTE—
—NOTE—
1G12
21 - 52 - 00
Page - 21 - 22
Reissued: August 1, 1986