PIPER CHEROKEE SIX / LANCE SERVICE MANUAL
07/15/06
XIII - ACCESSORIES AND UTILITIES
3H3
13-19. COMPRESSOR REMOVAL. The removal of the compressor requires a complete system discharge.
a.
Be certain the circuit protector is off for the air conditioning system.
b.
Remove the engine cowling and right front baffles.
c.
Disconnect the electrical leads to the magnetic clutch on the compressor.
d.
Depressurize the air conditioning system.
e.
Remove the suction and discharge lines from the service valves on the compressor.
NOTE: All open lines should be capped immediately to prevent dirt and moisture from entering the
system.
f.
Loosen the bolt securing the compressor idler pulley to release the belt tension and remove belt
from compressor pulley. (Do not force belt over the pulleys.)
g.
Support the compressor and remove the 6 bolts securing the compressor to the engine mounting
brackets.
13-20. COMPRESSOR INSTALLATION.
a.
Place the compressor to the mounting brackets. Install the six bolts and progressively torque to 13-
17 ft. pounds. (Safety all bolts with .032 safety wire.)
b.
Check the oil level in the compressor in accordance with instructions given in paragraph 13-21.
c.
Place drive belt over clutch pulley and adjust the alignment of the pulleys and belt in accordance
with instructions given in paragraph 13-22.
CAUTION: DO NOT FORCE THE BELT INTO THE PULLEY SHEAVE. IF NECESSARY,
REMOVE THE IDLER ASSEMBLY.
d.
Connect the discharge and suction lines to their respective service valve fittings.
e.
Evacuate and charge the system per paragraphs 13-13 and 13-14.
WARNING: IF THE AIR CONDITIONER IS TO BE OPERATED ON THE GROUND FOR
SERVICING, THE TEST AREA SHOULD BE CLEAN AND FREE OF ANY
LOOSE OBJECTS LYING ON THE RAMP. ONLY THE SERVICE VALVES
LOCATED ON THE EVAPORATOR ASSEMBLY SHOULD BE USED FOR
TESTING.
13-20a. COMPRESSOR MOUNTING BRACKETS.
If compressor mounting brackets (P/N’s 99630-0 and 79584-2) are removed, and a gap condition is
apparent upon reinstallation: one each NAS1149F0663P and/or NAS1149F0632P washer(s), singularly
or in combination, may be installed between the mounting bracket and the compressor and between the
mounting bracket and engine to reduce the gap to no more than 0.030 inch before tightening fasteners.
Summary of Contents for Cherokee LANCE
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