Infiniti G35 (V35) Sedan. Manual - part 746

HA-18

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PRECAUTIONS

COMPONENT PARTS

FUNCTIONS OF COMPONENT PARTS

NOTE:
• Garter spring (2) cannot be removed from cage (A) of male-side piping.
• Indicator ring (3) remains near piping connection point, however, this is not a malfunction. (This is to check

piping connection during factory assembly.)

REMOVAL

1.

Clean piping connection point, and set a disconnector.

2.

Slide disconnector in axial direction of piping, and stretch garter spring with tapered point of disconnector.

3.

Slide disconnector farther so that inside diameter of garter spring becomes larger than outside diameter of
female-side piping flare. Then male-side piping can be disconnected.

1

Pipe (Male-side)

• Retains O-rings (4).
• Retains garter spring (2) in cage (A).

2

Garter spring

Anchors female-side piping (5).

3

Indicator ring

When connection is made properly, this is ejected from male-side piping (1). (This part is no longer 
necessary after connection.)

4

O-ring

Seals connection point. (Not reusable)

5

Pipe (Female-side)

• Seals connection by compressing O-rings (4).
• Anchors piping connection using flare (B) and garter spring (2).

RJIA4383J

SJIA0106E

PRECAUTIONS

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INSTALLATION

1.

Clean piping connection points, and insert male-side piping into female-side piping.

2.

Push inserted male-side piping harder so that female-side piping flare stretches garter spring.

3.

If inside diameter of garter spring becomes larger than outside diameter of female-side piping flare, garter
spring seats on flare. Then, it fits in between male-side piping cage and female-side piping flare to anchor
piping connection point.
NOTE:
When garter spring seats on flare, and fits in between male-side piping cage and female-side piping flare,
it clicks.

CAUTION:

• Female-side piping connection point is thin and easy to deform. Slowly insert the male-side pip-

ing 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 connec-

tion does not come loose.

NOTE:

One-touch joint connection is used in points below.

• Low-pressure flexible hose to low-pressure pipe 2 (O-ring size: 16)
• Low-pressure pipe 1 to low-pressure pipe 2 (O-ring size: 16)
• High-pressure flexible hose to condenser pipe assembly (O-ring size: 12)
• High-pressure pipe 1 to high-pressure pipe 2 (O-ring size: 8)
• High-pressure pipe 1 to condenser pipe assembly (O-ring size: 8)

O-RING AND REFRIGERANT CONNECTION

SJIA0107E

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PRECAUTIONS

CAUTION:

The new and former refrigerant connections use different O-ring configurations. Never confuse O-
rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant may leak at the con-
nection.

O-Ring Part Numbers and Specifications

F.

Former type refrigerant connection

N.

New  type refrigerant connection

O.

One-touch joint

: O-ring size

JSIIA0004ZZ

Connection type

Piping connection point

Part number

QTY

O-ring size

New

Low-pressure flexible hose to low-pressure pipe 2 (One-
touch joint)

92473 N8221

2

16

High-pressure pipe 1 to high-pressure pipe 2 (One-touch 
joint)

92471 N8221

2

8

Condenser pipe assembly to high-pressure flexible hose 
(One-touch joint)

92472 N8221

2

12

Condenser pipe assembly to high-pressure pipe 1 (One-
touch joint)

92471 N8221

2

8

Radiator & condenser assembly to condenser 
pipe assembly

Inlet

92472 N8210

1

12

Outlet

92471 N8210

1

8

Low-pressure pipe 1 to low-pressure pipe 2

92473 N8210

1

16

Low-pressure pipe 1 to expansion valve

92473 N8210

1

16

High-pressure pipe 2 to expansion valve

92471 N8210

1

8

Compressor to low-pressure flexible hose

92474 N8210

1

19

Compressor to high-pressure flexible hose

92472 N8210

1

12

Liquid tank to radiator & condenser assembly

Inlet

92471 N8210

1

8

Outlet

1

PRECAUTIONS

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WARNING:

Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is
less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove it.

CAUTION:

When replacing or cleaning refrigerant cycle components, observe the following.
• When the compressor is removed, store it in the same way at it is when mounted on the car. Failure

to do so will cause lubricant to enter the low-pressure chamber.

• When connecting tubes, always use a torque wrench and a back-up wrench.
• After disconnecting tubes, immediately plug all openings to prevent entry of dust and moisture.
• When installing an air conditioner in the vehicle, connect the pipes at the final stage of the operation.

Never remove the seal caps of pipes and other components until just before required for connection.

• Allow components stored in cool areas to warm to working area temperature before removing seal

caps. This prevents condensation from forming inside A/C components.

• Thoroughly remove moisture from the refrigeration system before charging the refrigerant.
• Always replace used O-rings.
• When connecting tube, apply lubricant to circle of the O-rings shown in illustration. Be careful not to

apply lubricant to threaded portion.

• O-ring must be closely attached to the groove portion of tube.
• When replacing the O-ring, be careful not to damage O-ring and tube.
• Connect tube until a click can be heard, then tighten the nut or bolt by hand. Make sure that the O-

ring is installed to tube correctly.

• After connecting line, perform leak test and make sure that there is no leakage from connections.

When the refrigerant leaking point is found, disconnect that line and replace the O-ring. Then tighten
connections of seal seat to the specified torque.

Service Equipment

INFOID:0000000000959855

RECOVERY/RECYCLING EQUIPMENT

Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.

ELECTRICAL LEAK DETECTOR

Be certain to follow the manufacturer’s instructions for tester operation and tester maintenance.

Former

Refrigerant pressure sensor to liquid tank

J2476 89956

1

10

Expansion valve to evaporator

Inlet

92475 71L00

1

12

Outlet

92475 72L00

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16

Name

: Nissan A/C System Oil 
Type S

Connection type

Piping connection point

Part number

QTY

O-ring size

RHA861F