Checking Compressor Oil - Piper PA-32R-301 SARATOGA SP Maintenance Manual

COOLING (cont.)
O. Component Service (cont.)

(4) Checking Compressor Oil

Compressor oil level should be checked any time the system is discharged. Compressor must be
in installed position.
(a) Discharge system. (Refer to Discharging System).
(b) Fabricate an oil dipstick. (Refer to Figure 10.)
The oil plug should not be removed with pressure in the sys-
tem.
(c) Remove 0.375 inch oil plug in top side of compressor crankcase.
(d) Place Woodruff key in the up position before inserting dipstick into crankshaft . (Front face
of compressor clutch is marked with a stamped "K" indicating key location.)
(e) Use long end of dipstick to measure oil level from lowest point in crankcase.(See Figure 10.)
(f) Use Chart 5 to determine the amount of oil in the crankcase.
A 10 ounce oil level is required in compressors installed on
new systems. Some oil is distributed in the system during
operation. Replacement compressors should be charged with
10 ounces of oil.
(f) Do not operate compressor with less than 6 ounces of oil. When adding oil level must not go
above 10 ounces. Piper refrigerant oil PMS-L2000 or equivalent 500 viscosity refrigerant oil
must be used.
(g) Evacuate and charge system. (Refer to Evacuating the System and Charging the System.)
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
— CAUTION —
— CAUTION—
TORQUE
16-23 FT. LBS
THIS END FOR
4 PLCS
HORIZONTAL
NOTE: 12 NOTCHES 1/8 INCH APART
STARTING AT EACH END
OIL CHECK PLUG
(TYPICAL TWO SIDES
Compressor and Fabricated Oil Stick
Figure 10
1I15
4.6 8
1.50
MOUNT
1 0 8 °
1.50R
1.7 5
1 .50
THIS END FOR
VERTICAL MOUNT
21-50-00
Page 21-32
Reissued: July 1, 1993