Infiniti M35/M45 Y50. Manual - part 152

 

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Infiniti M35/M45 Y50. Manual - part 152

 

 

REFRIGERANT LINES

ATC-159

C

D

E

F

G

H

I

K

L

M

A

B

ATC

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

Replace O-rings of high-pressure flexible hose with new ones, and then apply compressor oil to it
when installing it.

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.

When recharging refrigerant, check for leaks.

Removal and Installation of High-pressure Pipe 1 (Engine Compartment)

NJS000HR

REMOVAL

1.

Remove low-pressure flexible hose. Refer to 

ATC-157, "Removal and Installation of Low-pressure Flexi-

ble Hose and Pipe"

 .

2.

Remove mounting bolt from high-pressure flexible hose bracket.

3.

Remove high-pressure pipe 1 from vehicle clips.

4.

Disconnect one-touch joints of high-pressure pipe 1.

a.

Set a disconnector (SST: 9253089908) on A/C piping.

RJIA4165E

High-pressure flexible hose bracket mounting bolt

: 4.2 N·m (0.43 kg-m, 37 in-lb)

RJIA4163E

RJIA4167E

ATC-160

REFRIGERANT LINES

b.

Slide a disconnector toward (or upward) vehicle front until it clicks.

c.

Slide A/C piping toward (or upward) vehicle front and disconnect it.

CAUTION:

Cap or wrap the joint of condenser, evaporator and high-pressure pipe 1 with suitable material
such as vinyl tape to avoid the entry of air.

5.

Remove high-pressure pipe 1.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

Replace O-rings of high-pressure pipe 1 with new ones, and then apply compressor oil to it when
installing it.

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.

When recharging refrigerant, check for leaks.

RJIA4168E

High-pressure flexible hose bracket mounting bolt

: 4.2 N·m (0.43 kg-m, 37 in-lb)

REFRIGERANT LINES

ATC-161

C

D

E

F

G

H

I

K

L

M

A

B

ATC

Removal and Installation of Low-pressure Pipe 1 and High-pressure Pipe 2

NJS000HS

REMOVAL

1.

Set the temperature control switch (passenger side) at 18

°

C (60

°

F), and then disconnect the battery cable

from the negative terminal.

2.

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

3.

Remove cowl top cover. Refer to 

EI-18, "COWL TOP"

 .

4.

Remove mounting bolt from low-pressure flexible hose bracket.

5.

Remove high-pressure pipe 1 from vehicle clip.

6.

Disconnect one-touch joints.

a.

Set a disconnector [high-pressure side (SST: 9253089908), low-
pressure side (SST: 9253089916)] on A/C piping.

b.

Slide a disconnector toward vehicle front until it clicks.

c.

Slide A/C piping toward vehicle front and disconnect it.

CAUTION:

Cap or wrap the joint of low-pressure flexible hose, low-
pressure pipe 1 and high-pressure pipe 1, 2 with suitable
material such as vinyl tape to avoid the entry of air.

7.

Remove instrument passenger lower panel and glove box. Refer
to 

IP-10, "INSTRUMENT PANEL ASSEMBLY"

 .

8.

Remove foot grille (right). Refer to 

ATC-148, "Removal of Foot Grilles"

 .

9.

Remove air mix door motor (passenger side). Refer to 

ATC-140, "AIR MIX DOOR MOTOR"

 .

10. Remove mode door motor (passenger side). Refer to 

ATC-139, "MODE DOOR MOTOR"

 .

11. Remove main link (right) and max. cool door link (right). Refer to 

ATC-134, "HEATER & COOLING UNIT

ASSEMBLY"

 .

12. Remove mounting screws, and then remove evaporator cover.

RJIA4169E

RJIA4117E

RJIA4170E

ATC-162

REFRIGERANT LINES

13. Remove mounting bolt, and then remove low-pressure pipe 1

and high-pressure pipe 2.

CAUTION:

Cap or wrap the joint of expansion valve with suitable mate-
rial such as vinyl tape to avoid the entry of air.

INSTALLATION

Installation is basically the reverse order of removal.

CAUTION:

Replace O-rings of low-pressure flexible hose, low-pressure pipe 1 and high-pressure pipe 1, 2
with new ones, and then apply compressor oil to it when installing it.

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.

When recharging refrigerant, check for leaks.

RJIA4171E

Low-pressure flexible hose bracket mounting bolt

: 4.2 N·m (0.43 kg-m, 37 in-lb)

 

 

 

 

 

 

 

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