THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 14
Jun 1/03
2D2
21-50-00
(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:
1 Wait 5 minutes. Observe pressure gauges for a rise above zero.
2 If a rise occurs, press the HOLD/CONT key.
3
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.
(o) Measure the amount of oil in the catch bottle. The same amount of new oil must be added
to the system before charging the system.
(p) To enter diagnostic mode, simultaneously press the SHIFT/RESET and ENTER keys. To
display amount of refrigerant recovered by the unit, press the 3 key. The panel display will
read the amount of recovered refrigerant in pounds or kilograms.
(q) Simultaneously press the SHIFT/RESET and ENTER keys to clear internal counter. Press
SHIFT/RESET to return to the main menu.
Robinair 34700 Charging Stand
Figure 2
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