Compressor Installation - Jeep J-10 Series 1982 Technical & Service Manual

COMPRESSOR
MOUNTING
BRACKET
COMPRESSOR-
TO-MANIFOLD
BRACKET
60496
Rg. 3E-31 Compressor Mounting—Eight-Cylinder Engine
, (3) Discharge refrigerant remaining in compressor
by opening suction gauge hand valve slowly.
(4) Open suction gauge hand valve and close the
high pressure gauge hand valve.
(5) Start engine and operate compressor. Pressure
will build up rapidly. Stop engine/compressor at 150 to
200 pounds pressure.
NOTE: Pressure should hold if the discharge valve is
operating properly. Loss ofpressure indicates a leaking
compressor discharge valve or head gasket.
COMPRESSOR RELT TENSION
Belt tensions are important and should be inspected at
the time of new vehicle predelivery and at subsequent
scheduled maintenance intervals. Refer to Section 1C
for belt tightening specifications and procedures.
ISOLATING THE COMPRESSOR
It is not necessary to discharge the system for com
pressor removal. The compressor can be isolated from
the remainder of the system, eliminating the need for
recharging when performing compressor service.
(1) Connect pressure gauge and Manifold Assembly
J-23575.
(2) Close both gauge hand valves and mid-position
(crack) both service valves.
(3) Start engine and operate air conditioning.
(4) Turn suction service valve slowly clockwise to
ward front-seated position. When suction pressure is
reduced to zero or less, stop engine and compressor and
quickly finish front-seating suction service valve.
(5) Front-seat discharge service valve.
AIR CONDITIONING 3E-29
(6) Loosen oil check plug slowly to release any inter
nal pressure in compressor. The compressor is now iso
lated from the remainder of the system. Service valves
can be removed from compressor.
COMPRESSOR REMOVAL
(1) Isolate compressor.
(2) Remove both service valves and place protective
caps over compressor head fittings and service valve
openings.
(3) Loosen and remove compressor belt(s).
(4) Disconnect clutch wire.
NOTE: Remove the alternator mounting bracket to ob
tain working clearance for removing the compressor
mounting bracket attaching bolts and nuts.
(5) Remove compressor and mounting bracket as an
assembly and place on workbench.
(6) Remove bracket, bracket attaching nuts and
studs.
COMPRESSOR INSTALLATION
(1) Install mounting bracket to compressor.
(2) Install compressor and bracket assembly to
engine.
(3) Install alternator mounting bracket, if removed.
(4) Install compressor drive belt(s) and adjust to
proper tension.
(5) Attach compressor service valves and lines.
(6) Purge compressor of air and open service valves.
(7) Connect clutch wire.
COMPRESSOR FRONT SEAL REPLACEMENT
The compressor front seal is serviced in kit form. Kit
components are shown in figure 3E-32. All seal parts
must be replaced if a leak has been detected at the seal.
NOTE: A small amount of oil around the shaft seal is
normal and does not indicate a seal leak. All seal parts
were dipped in oil at the time ofassembly and operation
may force out surplus oil.
(1) Isolate compressor.
(2) Remove belt.
(3) Remove clutch and woodruff key from com
pressor shaft.
(4) Remove seal plate capscrews. Pry seal plate
loose and remove.
(5) Carefully pry behind spring holder (that part of
the seal assembly farthest back on the shaft) and re
move seal assembly.
(6) Lubricate new seal assembly with clean refrig
eration oil.
NOTE: Cleanliness, careful handling, and clean refrig
eration oil are important for successful seal
replacement.