Jeep 1996 Grand Cherokee Service Manual - page 1420
compressor is replaced, the oil must be drained from
the old compressor and measured. Drain all the oil
from the new compressor, then fill the new compres-
sor with the same amount of oil that was drained out
of the old compressor.
REMOVAL AND INSTALLATION
REFRIGERANT LINE COUPLERS
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS GROUP BEFORE
PERFORMING THE FOLLOWING OPERATION.
REMOVAL
(1) Recover the refrigerant from the refrigerant
system as described in this group.
(2) Remove the secondary clip from the coupling.
Fit the appropriate spring lock coupling tool from the
A/C Tool Kit (Special Tool 6125) (Fig. 17).
(3) Close the tool and push it into the open side of
the cage to expand the garter spring and release the
female fitting.
NOTE: The garter spring may not release if the tool
is cocked while pushing it into the cage opening.
(4) After the garter spring is expanded, pull the
fittings apart within the tool.
(5) Remove the tool from the disconnected cou-
pling.
(6) Separate the two ends of the coupling.
INSTALLATION
(1) Check to ensure that the garter spring is in the
cage of the male fitting. If the garter spring is miss-
ing, install a new spring by pushing it into the cage
opening. If the garter spring is damaged, remove it
from the cage with a small wire hook (DO NOT use a
screwdriver) and install a new garter spring.
(2) Clean any dirt or foreign material from both
halves of the coupling.
(3) Install new O-rings on the male fitting.
CAUTION: Use only the specified O-rings as they
are made of a special material for the R-134a sys-
tem. The use of any other O-ring may allow the con-
nection
to
leak
intermittently
during
vehicle
operation.
(4) Lubricate the male fitting and O-ring, and the
inside of the female fitting with clean R-134a (SP20
PAG) refrigerant oil.
(5) Fit the female fitting to the male fitting and
push together until the garter spring snaps over the
flared end of the female fitting.
(6) Ensure the coupling is fully engaged by pulling
back on the lines on either side of the coupling.
(7) Install the secondary clip on the coupling.
COMPRESSOR
The compressor may be removed and repositioned
without disconnecting the refrigerant lines or dis-
charging the refrigerant system. Discharging is not
necessary if servicing the compressor clutch or clutch
coil, the engine, the cylinder head, or the generator.
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS GROUP BEFORE
PERFORMING THE FOLLOWING OPERATION.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Loosen and remove the serpentine drive belt.
Refer to Group 7 - Cooling System for the procedures.
(3) Disconnect the compressor clutch coil wiring.
Fig. 16 Refrigerant Oil Capacities
Fig. 17 Spring Lock Coupling Disconnect
ZJ
HEATING AND AIR CONDITIONING
24 - 29
SERVICE PROCEDURES (Continued)