Nissan Pathfinder (2005 year). Instruction — part 63
REFRIGERANT LINES
ATC-151
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2005 Pathfinder
REFRIGERANT LINES
PFP:92600
HFC-134a (R-134a) Service Procedure
EJS002Y6
SETTING OF SERVICE TOOLS AND EQUIPMENT
Discharging Refrigerant
WARNING:
Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Remove HFC-134a (R-134a) refrigerant from the A/C system using certified service equipment
meeting requirements of SAE J2210 HFC-134a (R-134a) recycling equipment or SAE J2201 HFC-134a
(R-134a) recovery equipment. If an accidental system discharge occurs, ventilate the work area before
resuming service. Additional health and safety information may be obtained from the refrigerant and
lubricant manufacturers.
Evacuating System and Charging Refrigerant
1.
Shut-off valve
2.
A/C service valve
3.
Recovery/Recycling equipment ACR 2000
(J-43600) with refrigerant identifier
WJIA1160E
1.
Shut-off valve
2.
A/C service valve
3.
Recovery/Recycling equipment ACR
2000 (J-43600) with refrigerant identifier
WJIA1161E
ATC-152
REFRIGERANT LINES
2005 Pathfinder
4.
Refrigerant container (HFC-134a)
5.
Refrigerant weight scale (J-39699)
6.
Vacuum pump (J-39649)
7.
Manifold gauge set with hoses and
couplers (J-39183-C)
*1
.
*3
ATC-167, "Checking for Refrigerant
Leaks"
.
*5
ATC-5, "Contaminated Refrigerant"
*2
ATC-167, "Checking for Refrigerant
Leaks"
*4
ATC-103, "PERFORMANCE TEST
DIAGNOSES"
.
WJIA0530E
REFRIGERANT LINES
ATC-153
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2005 Pathfinder
Components
EJS002Y7
Front A/C Compressor and Condenser
WJIA1399E
ATC-154
REFRIGERANT LINES
2005 Pathfinder
Rear A/C
NOTE:
Refer to
ATC-7, "Precautions for Refrigerant Connection"
.
1.
High-pressure service valve
2.
Clip
3.
Front high-pressure A/C pipe
4.
Refrigerant pressure sensor
5.
Condenser
6.
Compressor shaft seal
7.
Front high-pressure flexible A/C hose
8.
Front low-pressure flexible A/C hose
9.
Low-pressure service valve
10. Front low-pressure A/C pipe
11.
Front expansion valve
12. Front A/C drain hose
WJIA1400E
1.
Rear high- and low-pressure A/C pipes
2.
Rear heater core hoses
3.
Underfloor rear high- and low-pres-
sure A/C and heater core pipes
4.
Rear expansion valve
REFRIGERANT LINES
ATC-155
C
D
E
F
G
H
I
K
L
M
A
B
ATC
2005 Pathfinder
Removal and Installation for Compressor
EJS002Y8
A/C Compressor Mounting
REMOVAL
1.
Discharge the A/C refrigerant. Refer to
ATC-151, "HFC-134a (R-134a) Service Procedure"
.
2.
Remove the front left wheel and tire assembly. Refer to
.
3.
Remove the engine cover.
4.
Remove the front left mud guard.
5.
Remove the front left splash shield.
6.
Remove the engine air cleaner and air ducts. Refer to
EM-15, "AIR CLEANER AND AIR DUCT"
.
7.
Remove the drive belt. Refer to
.
8.
Disconnect the compressor harness connector.
9.
Disconnect both the front high-pressure flexible A/C hose and front low-pressure flexible A/C hose from
the compressor.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
10. Remove the A/C compressor bolts using power tools.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
●
Replace the O-ring of the front low-pressure flexible A/C hose and front high-pressure flexible A/C
hose with a new one, apply compressor oil to the O-rings before installation.
●
After recharging the A/C system with refrigerant, check for leaks. Refer to
.
LJIA0176E
1.
Compressor
2.
Front timing chain case
3.
Rear timing chain case
4.
Cylinder block
ATC-156
REFRIGERANT LINES
2005 Pathfinder
Removal and Installation for Compressor Clutch
EJS002Y9
Magnet Clutch Assembly
REMOVAL
1.
Remove the compressor. Refer to
ATC-155, "Removal and Installation for Compressor"
.
2.
Remove the center bolt while holding the clutch disc stationary
using Tool as shown.
3.
Remove the clutch disc.
4.
Remove the snap ring using external snap ring pliers or suitable
tool.
WJIA1162E
1.
Magnet clutch assembly
2.
Magnet coil
3.
Pulley
4.
Clutch disc
5.
Snap ring
6.
Thermal protector (built in)
7.
Compressor
Tool number
: J-44614
WHA228
RHA072C
REFRIGERANT LINES
ATC-157
C
D
E
F
G
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I
K
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M
A
B
ATC
2005 Pathfinder
5.
Remove the pulley using Tool with a small adapter. Position the
small adapter on the end of the drive shaft and the center of the
puller on the small adapter.
CAUTION:
To prevent deformation of the pulley groove, the puller
claws should be hooked under the pulley groove and not
into the pulley groove.
6.
Remove the magnet coil harness clip using a screwdriver,
remove the three magnet coil fixing screws and remove the
magnet coil.
INSPECTION
Clutch Disc
If the contact surface shows signs of damage due to excessive heat,
replace clutch disc and pulley.
Pulley
Check the appearance of the pulley assembly. If contact surface of pulley shows signs of excessive grooving,
replace clutch disc and pulley. The contact surfaces of the pulley assembly should be cleaned with a suitable
solvent before reinstallation.
Coil
Check magnet coil for loose connections or any cracked insulation.
INSTALLATION
1.
Install the magnet coil.
CAUTION:
Be sure to align the magnet coil pin with the hole in the
compressor front head.
Tool number
: KV99233130 (J-29884)
WJIA1017E
WHA212
WHA183
WHA213
ATC-158
REFRIGERANT LINES
2005 Pathfinder
2.
Install the magnet coil harness clip using a screwdriver.
3.
Install the pulley assembly using Tool and a wrench, then install
the snap ring using snap ring pliers.
4.
Install the clutch disc on the compressor shaft, together with the
original shim(s). Press the clutch disc down by hand.
5.
Install the clutch pulley bolt using Tool, to prevent the clutch disc
from turning and tighten the bolt to specification. Refer to
.
CAUTION:
After tightening the clutch pulley bolt, check that the clutch
pulley rotates smoothly.
6.
Check the pulley clearance all the way around the clutch disc as
shown.
7.
If the specified clearance is not obtained, replace the adjusting
spacer to readjust.
8.
Install the compressor. Refer to
.
Tool number
:
—
(J-38873-A)
WJIA1016E
WHA184
Tool number
: J-44614
WHA229
Clutch disc-to-pulley clearance
: 0.3 - 0.6 mm
(0.012 - 0.024 in)
WHA194
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