Infiniti G37 Coupe. Manual — part 749
HA-42
< ON-VEHICLE REPAIR >
HIGH-PRESSURE FLEXIBLE HOSE
HIGH-PRESSURE FLEXIBLE HOSE
Exploded View
INFOID:0000000001713748
HA-13, "Refrigerant Connection"
.
Removal and Installation
INFOID:0000000001675640
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
.
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
HIGH-PRESSURE FLEXIBLE HOSE
HA-43
< ON-VEHICLE REPAIR >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
4.
Remove mounting bolt (A) from high-pressure flexible hose
bracket (1).
5.
Disconnect one-touch joint between high-pressure flexible hose
(1) and condenser pipe assembly (2) with disconnector (A)
(SST: 9253089912).
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.
6.
Remove mounting nut (A) from high-pressure flexible hose (1),
and then remove high-pressure flexible hose.
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.
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.
JSIIA0026ZZ
JSIIA0027ZZ
JSIIA0086ZZ
HA-44
< ON-VEHICLE REPAIR >
HIGH-PRESSURE PIPE 1(ENGINE COMPARTMENT)
HIGH-PRESSURE PIPE 1(ENGINE COMPARTMENT)
Exploded View
INFOID:0000000001713749
HA-13, "Refrigerant Connection"
.
Removal and Installation
INFOID:0000000001675642
REMOVAL
1.
Remove low-pressure flexible hose and pipe 2. Refer to
2.
Remove mounting bolt (A) from high-pressure flexible hose
bracket (1).
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
JSIIA0026ZZ
HIGH-PRESSURE PIPE 1(ENGINE COMPARTMENT)
HA-45
< ON-VEHICLE REPAIR >
C
D
E
F
G
H
J
K
L
M
A
B
HA
N
O
P
3.
Remove high-pressure pipe 1 (1) from vehicle clips (A).
4.
Disconnect one-touch joint between high-pressure pipe 1 (1)
and high-pressure pipe 2 (2) with disconnector (A) (SST:
9253089908).
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.
5.
Disconnect one-touch joint between high-pressure pipe 1 and
condenser pipe assembly with disconnector (A) (SST:
9253089908).
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.
6.
Remove vacuum hose. Refer to
.
7.
Remove high-pressure pipe 1.
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.
JSIIA0028ZZ
JSIIA0092ZZ
JSIIA0188ZZ
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