Infiniti F50. Manual - part 156

REFRIGERANT LINES

ATC-149

C

D

E

F

G

H

I

K

L

M

A

B

ATC

High-Pressure Flexible Hose

EJS000A8

REMOVAL

1.

Remove engine cover and air cleaner cover. Refer to 

EM-11, "ENGINE ROOM COVER"

 .

2.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

3.

Remove air cleaner assembly, air duct and air inlet pipe. Refer to 

EM-15, "AIR CLEANER AND AIR

DUCT"

 .

4.

Remove mounting bolt and nut from the high-pressure flexible
hose, then remove it.

CAUTION:

Cap or wrap the open ends of the pipe with a suitable material
such as vinyl tape to avoid the entry of air.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Replace high-pressure flexible hose O-ring with a new one. Apply compressor oil prior to installa-
tion.

●

When pouring refrigerant, check for leaks.

High-Pressure Pipe

EJS000A9

REMOVAL

1.

Remove engine cover and air cleaner cover. Refer to 

EM-11, "ENGINE ROOM COVER"

 .

2.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

3.

Drain coolant from cooling system and disconnect heater hoses.
Refer to 

CO-9, "Changing Engine Coolant"

 .

4.

Remove tower bar, air cleaner assembly, air duct and air inlet
pipe. Refer to 

FSU-5, "FRONT SUSPENSION ASSEMBLY"

and 

EM-15, "AIR CLEANER AND AIR DUCT"

 .

5.

Remove vehicle harness from the clip.

6.

Remove low-pressure flexible hose and high-pressure flexible
hose. Refer to 

ATC-148, "Low-Pressure Flexible Hose"

    and

ATC-149, "High-Pressure Flexible Hose"

 .

CAUTION:

Cap or wrap the open ends of the pipe with a suitable mate-
rial such as vinyl tape to avoid the entry of air.

7.

Remove front grille, battery, battery tray and radiator mounting
bracket. Refer to 

EI-19, "FRONT GRILLE"

 , 

SC-4, "BATTERY"

and 

CO-12, "RADIATOR"

 .

8.

Slide the radiator assembly to the right side of vehicle.

RJIA0138E

Bolt and nut mounting high-pressure flexible hose

Tightening torque

: 7.8 - 19.6 N·m (0.8 - 1.9 kg·m, 69 - 173 in-lb)

RJIA0318E

RJIA0328E

ATC-150

REFRIGERANT LINES

9.

Remove mounting bolt from the high-pressure pipe.

10. Remove clips from the high-pressure pipe, then remove high-

pressure pipe.

CAUTION:

Cap or wrap the open ends of the pipe with a suitable material
such as vinyl tape to avoid the entry of air.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Replace high-pressure pipe O-ring with a new one. Apply compressor oil prior to installation.

●

When pouring refrigerant, check for leaks.

Refrigerant Pressure Sensor

EJS001YN

REMOVAL

1.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

2.

Remove front grille. Refer to 

EI-19, "FRONT GRILLE"

 .

3.

Disconnect connector and remove refrigerant pressure sensor.

CAUTION:

●

Secure refrigerant pressure sensor installation pipe with an
open-end wrench. Be careful not to deform pipe during the
operation.

●

Be careful not to damage the core surface of the condenser
during the operation.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

Replace refrigerant pressure sensor O-ring with a new one. Apply compressor oil prior to installation.

RJIA0329E

Bolts mounting the high-pressure pipe (condenser side, evaporator 
side)

Tightening torque

: 2.9 - 5.9 N·m (0.29 - 0.6 kg·m, 26 - 52 in-lb)

Nut mounting the low-pressure flexible hose (compressor side)

Tightening torque

: 7.8 - 19.6 N·m (0.8 - 1.9 kg·m, 69 - 173 in-lb)

Bolt and nut mounting the high-pressure flexible hose

Tightening torque

: 7.8 - 19.6 N·m (0.8 - 1.9 kg·m, 69 - 173 in-lb)

SJIA0134E

Refrigerant pressure sensor

Tightening torque

: 9.8 - 11.7 N·m (1.0 - 1.2 kg·m, 87 - 104 in-lb)

REFRIGERANT LINES

ATC-151

C

D

E

F

G

H

I

K

L

M

A

B

ATC

Condenser

EJS000AC

REMOVAL

1.

Remove engine cover and air cleaner cover. Refer to 

EM-11, "ENGINE ROOM COVER"

 .

2.

Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.

3.

Remove tower bar, air cleaner assembly, air duct and air inlet pipe. Refer to 

FSU-5, "FRONT SUSPEN-

SION ASSEMBLY"

  and 

EM-15, "AIR CLEANER AND AIR DUCT"

 .

4.

Disconnect high-pressure flexible hose and high-pressure pipe
from the condenser.

CAUTION:

Cap or wrap the open ends of the pipe with a suitable mate-
rial such as vinyl tape to avoid the entry of air.

5.

 Remove oil cooler pipe clips from left and right sides of the con-
denser.

6.

 Slide condenser up and remove it from the radiator clip.

7.

Remove oil cooler from the condenser.

8.

Remove cooling fan shroud. Refer to 

CO-18, "COOLING FAN"

 .

9.

Remove front grille, battery, battery tray and radiator mounting
bracket. Refer to 

EI-19, "FRONT GRILLE"

 , 

SC-4, "BATTERY"

and 

CO-12, "RADIATOR"

 .

10. Remove power steering oil tank and canister.

11. Remove mounting bolts from condenser.

12. Slide condenser up and remove it from the radiator clip.

13. Remove radiator from the lower mount, move it to the engine

side, then remove condenser between the radiator and the radi-
ator core support.

CAUTION:

Be careful not to damage the core surface of the condenser
and the radiator.

RJIA0141E

RJIA0142E

RJIA0331E

RJIA0332E

ATC-152

REFRIGERANT LINES

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Replace high-pressure pipe and high-pressure flexible hose
O-rings with new ones. Apply compressor oil prior to instal-
lation.

●

When pouring refrigerant, check for leaks.

Liquid Tank

EJS001JS

RJIA0333E

Bolts mounting the high-pressure flexible hose

Tightening torque

: 7.8 - 19.6 N·m (0.8 - 1.9 kg·m, 69 - 173 in-lb)

Bolts mounting the high-pressure pipe

Tightening torque

: 2.9 - 5.9 N·m (0.29 - 0.6 kg·m, 26 - 52 in-lb)

Bolts mounting the condenser

Tightening torque

: 3.82 - 4.51 N·m (0.39 - 0.46 kg·m, 34 - 39 in-lb)

SJIA0132J

1.

Liquid tank

2.

Liquid tank securing bands

3.

Screw

4.

Securing bracket piping

5.

Screw

6.

O-ring

7.

Condenser

8.

Refrigerant pressure sensor