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

Page: 349 / 1956

PAGE 31
Feb 28/07 2E23
21-50-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
Fabricated Dipstick for Sanden Compressor Oil Check
Figure 12
30˚
4.115 "
0.118 " (3mm) INCREMENTS
TYPICAL FOR
20 NOTCHES
(e) Remove the suction and discharge lines from the connections on the compressor.
NOTE: All open lines should be capped immediately to prevent dirt and moisture from
entering the system.
(f) Remove forward, left hand engine baffles as required.
(g) Loosen compressor attach bolts to relieve belt tension.
(h) Remove belt.
(i) Support compressor and remove the attachment bolts.
(3) Installation
Install the compressor as follows:
(a) Place compressor in mounting brackets and install attach bolts.
(b) Install compressor drive belt. Rotate compressor drive belt. Adjust belt tension (see
below).
(c) Check oil level in compressor. (See Checking Compressor Oil Level, below.)
(d) Connect the discharge and suction lines to their respective fittings.
(e) Install engine baffles.
(f) Evacuate and charge the system per instructions given above.
(4) Checking Compressor Oil Level
Whenever a system component has been replaced or there is an obvious leak, use the
following procedure to check the compressor oil level (after making necessary repairs):
(a) Run compressor for 10 minutes at engine idle rpm.
(b) Recover all refrigerant from the system. See Servicing the System, Discharging, above.
Be careful not to lose oil.
(c) Determine the compressor mounting angle by positioning the angle gauge (Sanden P/N
32448 or a propeller protractor) across the flat surfaces of the two front mounting ears.
(d) Center the bubble and read the mounting angle to the closest degree.
(e) Remove the oil filler plug.
(f) While looking through the oil filler plug hole and observing the internal parts (see Figure
11), rotate the counterweight. Stop the counterweight in the position shown in Figure 13
as the internal parts are moving to the rear of the compressor (discharge stroke).
NOTE: This step clears the internal parts to allow the dipstick to be inserted to full depth.