Infiniti F50. Manual - part 154

REFRIGERANT LINES

ATC-141

C

D

E

F

G

H

I

K

L

M

A

B

ATC

REFRIGERANT LINES

PFP:92600

HFC-134a (R-134a) Service Procedure

EJS000KE

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) from A/C system using certified service equipment meeting
requirements of SAE J2210 HFC-134a (R-134a) recycling equipment or J2201 HFC-134a (R-134a)
recovery equipment. If accidental system discharge occurs, ventilate work area before resuming ser-
vice. Additional health and safety information may be obtained from refrigerant and lubricant manu-
facturers.

Evacuating System and Charging Refrigerant

SHA179FD

SHA180FD

ATC-142

REFRIGERANT LINES

*1

ATC-23, "LUBRICANT RETURN 
OPERATION"

*2

ATC-155, "Checking for Refrigerant 
Leaks"

*3

ATC-157, "CHECKING PROCE-
DURE"

*4

ATC-93, "PERFORMANCE TEST 
DIAGNOSES"

*5

ATC-5, "CONTAMINATED REFRIG-
ERANT"

RJIA1878E

REFRIGERANT LINES

ATC-143

C

D

E

F

G

H

I

K

L

M

A

B

ATC

Components

EJS0026Y

Refer to 

ATC-6, "Precautions for Refrigerant Connection"

 .

RJIA1318E

ATC-144

REFRIGERANT LINES

Compressor

EJS0026Z

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 dis-
charge the refrigerant. 

3.

Remove engine under cover, using power tools.

4.

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

EM-15, "AIR CLEANER AND AIR DUCT"

 .

5.

Remove compressor-alternator belt.
Refer to 

MA-13, "Checking Drive Belts"

 .

6.

Remove mounting nuts from both high-pressure flexible hose
and low-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.

Disconnect compressor connectors (magnet clutch and ECV).

8.

Remove mounting bolt from radiator hose bracket.

9.

Remove mounting bolts from compressor, using power tools.

10. Move radiator hose to right side of the vehicle.
11. Remove compressor from the upper side of the vehicle.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

●

Replace low-pressure flexible hose and high-pressure flexible hose O-rings with new ones. Apply
compressor oil prior to installation.

●

When pouring refrigerant, check for leaks.

RJIA1319E

RJIA0327E

RJIA0133E

Bolts mounting the compressor

Tightening torque

: 57 - 65 N· m (5.8 - 6.7 kg·m, 42 - 48 ft-lb)

Bolts mounting the compressor bracket

Tightening torque

: 57 - 65 N·m (5.8 - 6.7 kg·m, 43 - 48 ft-lb)