Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 332 / 1956

PAGE 14
Feb 28/07
2E6
21-50-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(e) Check the low side gauge (GAUGE 1) and high side gauge (GAUGE 2) to determine that
there is pressure in the system. If there is no pressure, there is no refrigerant in the
system to recover.
(f) Check that the oil drain valve is closed.
(g) Open both the low side and high side valves on control panel.
(h) Open the red GAS (vapor) valve and the blue LIQUID valve on the charging station's
refrigerant tank.
(i) Slowly open the oil drain valve to see if system oil separator contains oil. If it does, let oil
drain into the oil drain bottle (located at the bottom of the rear side of the charging station)
until separator is empty.
(j) Close the oil drain valve. Dispose of collected oil in an environmentally accepted manner.
Return collection bottle to its place on the charging stand.
(k) Plug unit into a proper voltage outlet. Turn MAIN POWER switch ON.
(l) Press the RECOVER key on charging station keypad.
(m) To assure complete recovery of refrigerant:
(a) Wait 5 minutes. Observe pressure gauges for a rise above zero.
(b) If a rise occurs, press the HOLD/CONT key.
(c) Repeat as necessary until system maintains pressure for two minutes.
(n) Slowly open oil drain valve. Drain oil into the oil catch bottle. When all recovered oil has
been completely drained, close oil drain valve.
NOTE: Drain oil separator after each job. Display will indicate OIL (OUNCES) or OIL
(GRAMS) as a reminder.
Robinair 34700 Charging Stand
Figure 3