Charging The System; Charging Stand Method - Piper PA-32R-301 SARATOGA SP Maintenance Manual

COOLING (cont.)
M. Charging The System
Use one of the following procedures to charge the system:

(1) Charging stand method.

1. CYLINDER PRESSURE GAUGE
2. COMPOUND GAUGE
3. VALVE, LOW PRESSURE CONTROL
4. VALVE, VACUUM CONTROL
5. CHARGING CYLINDER
6. BRACKET
7. SIGHT GLASS
8. CYLINDER BASE VALVE
9. HIGH PRESSURE GUAGE
10. VALVE, HIGH PRESSURE CONTROL
11. VALVE, REFRIG. CONTROL
12. CHARGING LINE HOSE HOLDER
13. BRACKET
14. LOW PRESURE CHARGING LINE
15. HIGH PRESSURE CHARGING LINE
16. HEATING ELEMENT PLUG
17. VACUUM PUMP
18. OIL FILL LOCATION
19. NECK ASSEMBLY
20. REFRIGERANT DRUM SUPPORT
21. REFRIGERANT DRUM VALVE
22. VACUUM PUMP VALVE
23. VACUUM PUMP EXHAUST PORT
24. TOP CYLINDER VALVE
25. REFRIGERANT DRUM
26. WEB STRAP
27. REFRIGERANT DRUM REDUCER
28. CHARGING CYLINDER HOSE
29. VACUUM PUMP INTAKE HOSE
30. VACUUM PUMP SWITCH
31. VACUUM PUMP POWER CORD
Applies to Kent Moore J23500 or similar charging stand.
(Refer to Figure 8.)
(a) Connect charging stand to system. (Refer to Figure 9.)
(b) Fill charging cylinder by opening valve at the base of charging cylinder. Fill sight glass with
two pounds of liquid refrigerant.
(c) If refrigerant stops filling sight glass, intermittently open valve at top of the gauge neck assem-
bly to relieve head pressure. Allow refrigerant to continue filling sight glass to the required
amount.
(d) When refrigerant reaches required level in sight glass, close valve at the base of the cylinder
and valve at bottom of refrigerant tank. Be sure top valve is fully closed.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
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Charging Stand
Figure 8
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Reissued: July 1, 1993
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