Infiniti G37 Coupe. Manual — part 748
HA-38
< ON-VEHICLE REPAIR >
COMPRESSOR
COMPRESSOR
Exploded View
INFOID:0000000001675634
Removal and Installation
INFOID:0000000001675635
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2.
Remove air cleaner case (LH) and air duct (LH). Refer to
.
3.
Remove engine undercover, using power tools.
4.
Drain engine coolant from radiator. Refer to
.
5.
Remove cooling fan assembly. Refer to
6.
Remove drive belt. Refer to
.
7.
Remove radiator hose (lower). Refer to
.
8.
Remove mounting nuts (A) from low-pressure flexible hose (1)
and high-pressure flexible hose (2).
CAUTION:
Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.
9.
Disconnect compressor (ECV) connector (A).
10. Disconnect compressor (magnet clutch) connector (B).
1.
Compressor
Refer to
for symbols in the figure.
JSIIA0011GB
JSIIA0090ZZ
JSIIA0021ZZ
COMPRESSOR
HA-39
< ON-VEHICLE REPAIR >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
11. Remove mounting bolts (A) from compressor (1), using power
tools.
12. Remove the compressor from top of the vehicle.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Check for leakages when recharging refrigerant.
Inspection
INFOID:0000000001675636
CHECK DISC TO PULLEY CLEARANCE
Check the clearance (B) between pulley assembly (1) and clutch
disc (2) along the entire periphery with a feeler gauge (A).
Replace compressor if specified clearance is not obtained.
JSIIA0022ZZ
Standard
: Refer to
JSIIA0087ZZ
HA-40
< ON-VEHICLE REPAIR >
LOW-PRESSURE FLEXIBLE HOSE AND PIPE 2
LOW-PRESSURE FLEXIBLE HOSE AND PIPE 2
Exploded View
INFOID:0000000001713747
HA-13, "Refrigerant Connection"
.
Removal and Installation
INFOID:0000000001675638
REMOVAL
1.
Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2.
Remove engine cover. Refer to
3.
Remove air cleaner case (LH) and air duct (LH). Refer to
.
4.
Remove cowl top cover. Refer to
.
1.
Blower unit
2.
O-ring
3.
Low-pressure pipe 2
4.
Low-pressure flexible hose
5.
Compressor
6.
Radiator & condenser assembly
7.
High-pressure flexible hose
8.
High-pressure pipe 1
9.
Heater & cooling unit assembly
10. Expansion valve
11.
Evaporator
12. High-pressure pipe 2
13. Low-pressure pipe 1
Refer to
for symbols in the figure.
JSIIA0109GB
LOW-PRESSURE FLEXIBLE HOSE AND PIPE 2
HA-41
< ON-VEHICLE REPAIR >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
5.
Remove mounting bolt (A) from low-pressure flexible hose
bracket (1).
6.
Disconnect one-touch joint between low-pressure pipe 1 (1) and
low-pressure pipe 2 (2) with disconnector (A) (SST:
9253089916).
CAUTION:
Cap or wrap the joint of the A/C piping with suitable mate-
rial such as vinyl tape to avoid the entry of air.
7.
Disconnect one-touch joint between low-pressure pipe 2 (1) and
low-pressure flexible hose (2) with disconnector (A) (SST:
9253089916).
CAUTION:
Cap or wrap the joint of the A/C piping with suitable mate-
rial such as vinyl tape to avoid the entry of air.
8.
Remove low-pressure pipe 2 clip (B).
9.
Remove low-pressure pipe 2.
10. Remove mounting nut (A) from low-pressure flexible hose (1).
CAUTION:
Cap or wrap the joint of the A/C piping and compressor with
suitable material such as vinyl tape to avoid the entry of air.
11. Remove low-pressure flexible hose.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
• Replace O-rings with new ones. Then apply compressor oil to them when installing.
• Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
• Insert piping securely until a click is heard.
• After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.
• Check for leakages when recharging refrigerant.
JSIIA0023ZZ
JSIIA0091ZZ
JSIIA0024ZZ
JSIIA0025ZZ
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