Jeep Grand Cherokee WK. Manual — part 1780
1. Position the A/C compressor (5) into the engine
compartment.
2. Install the bolts (4) that secure the A/C compressor
to the engine. Tighten the bolts to 55 N·m (41 ft.
lbs.).
3. Connect the wire harness connector (3) to the A/C
compressor.
4. Position the power steering pump (2) onto the
engine.
5. Install the three bolts (1) that secure the power
steering pump to the engine. Tighten the bolts
securely.
6. Remove the tape or plugs from the opened refrig-
erant line fittings and the compressor ports.
7. Lubricate new seals with clean refrigerant oil and
install them onto the refrigerant line fittings. Use
only the specified seals as they are made of a spe-
cial material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.
8. Install the A/C suction line (3) and the A/C dis-
charge line (1) onto the A/C compressor (4).
9. Install the nuts (2) that secure the refrigerant lines
to the A/C compressor. Tighten the nuts to 20 N·m
(15 ft. lbs.).
10. Install the accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/BELTS-DRIVE -
INSTALLATION).
11. Install the resonator onto the engine and the air
cleaner
housing
(Refer
to
9
-
ENGINE/AIR
INTAKE
SYSTEM/HOUSING-AIR
CLEANER
-
INSTALLATION).
12. Reconnect the negative battery cable.
13. Evacuate the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD
PROCEDURE - REFRIGERANT SYSTEM EVACUATE).
14. Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM CHARGE).
24 - 468
PLUMBING
WK
CONDENSER-A/C
DESCRIPTION
The A/C condenser (1) is located in the front of the
engine compartment behind the grille. The A/C con-
denser is a heat exchanger that allows the high-pres-
sure refrigerant gas being discharged by the A/C
compressor to give up its heat to the air passing over
the condenser fins, which causes the refrigerant to
cool and change to a liquid state.
The A/C condenser is equipped with an integral auto-
matic transmission cooler and tapping block (2),
mounting provisions for the power steering cooler (3)
and a tapping block for the A/C discharge line and the
receiver/drier (4).
OPERATION
When air passes through the fins of the A/C condenser, the high-pressure refrigerant gas within the A/C condenser
gives up its heat. The refrigerant then condenses as it leaves the A/C condenser and becomes a high-pressure
liquid. The volume of air flowing over the condenser fins is critical to the proper cooling performance of the A/C
system. Therefore, it is important that there are no objects placed in front of the radiator grille openings at the front
of the vehicle or foreign material on the condenser fins that might obstruct proper air flow. Also, any factory-installed
air seals or shrouds must be properly reinstalled following radiator or A/C condenser service.
The A/C condenser cannot be repaired and, if faulty or damaged, it must be replaced.
REMOVAL
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
WK
PLUMBING
24 - 469
1. Recover the refrigerant from the refrigerant system
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING
-
STANDARD
PROCEDURE
-
REFRIGERANT SYSTEM RECOVERY).
2. Disconnect and isolate the negative battery cable.
3. Remove the grille (Refer to 23 - BODY/EXTERIOR/
GRILLE - REMOVAL).
4. Remove the air filter housing and air inlet tube
(Refer to 9 - ENGINE/AIR INTAKE SYSTEM/
HOUSING-AIR CLEANER - REMOVAL).
NOTE: It is not necessary to remove the hood
latch from the radiator crossmember when servic-
ing the A/C condenser.
5. Remove the upper radiator crossmember and sup-
port bracket and position them out of the way
(Refer to 23 - BODY/EXTERIOR/CROSSMEMBER-
RADIATOR - REMOVAL).
6. Remove the power steering fluid cooler or position it out of the way (depending on application) (Refer to 19 -
STEERING/PUMP/COOLER-FLUID - REMOVAL).
7. Disconnect the automatic transmission cooler lines (1) from the transmission fluid cooler (2) (Refer to 7 - COOL-
ING/TRANSMISSION - STANDARD PROCEDURE - TRANSMISSION COOLER LINE QUICK CONNECT FIT-
TING).
8. Install plugs in, or tape over the automatic transmission cooler line fittings and the fluid cooler ports.
9. Disconnect the A/C discharge line (1) from the A/C
condenser (2) (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING/LINE-A/C DISCHARGE -
REMOVAL).
10. Loosen the screw (3) that secures the receiver/
drier (4) to the radiator and fan shroud (5).
11. Disconnect the receiver drier inlet tube (6) from
the A/C condenser (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING/RECEIVER/DRIER -
REMOVAL).
24 - 470
PLUMBING
WK
12. Remove the four bolts (1) that secure A/C con-
denser (2) to the radiator (3).
13. Carefully lift the A/C condenser straight up and
out of the engine compartment.
INSTALLATION
NOTE: If the A/C condenser is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrig-
erant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
1. Carefully position the A/C condenser (2) onto the
radiator (3).
2. Install the four bolts (1) that secure the A/C con-
denser to the radiator. Tighten the bolts to 5 N·m
(45 in. lbs.).
WK
PLUMBING
24 - 471
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст