Nissan GT-R. Manual - part 157

 

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Nissan GT-R. Manual - part 157

 

 

PREPARATION

HA-21

< PREPARATION >

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PREPARATION

PREPARATION

Commercial Service Tool

INFOID:0000000009160184

Sealant or/and Lubricant

INFOID:0000000009160185

HFC-134a (R-134a) Service Tool and Equipment

• Never mix HFC-134a (R-134a) refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/

or its lubricant.

• Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/

lubricant.

• Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles

refrigerant and/or lubricant) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid
mixed use of the refrigerants/lubricant.

• Never use adapters that convert one size fitting to another: refrigerant/lubricant contamination occurs and

compressor malfunction may result.

Tool name

Description

Refrigerant identifier equipment

Checking for refrigerant purity and 
system contamination

Power tool

For loosening bolts and nuts

RJIA0197E

PBIC0190E

Tool name

Description

HFC-134a (R-134a) refrigerant

Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size

• Large container 1/2

-16 ACME

NISSAN A/C System Oil Type S 
(DH-PS)

Type: Polyalkylene glycol oil (PAG), 
type S (DH-PS)
Application:
HFC-134a (R-134a) swash plate com-
pressors (NISSAN only)

Capacity: 40 m

 (1.4 US fl oz., 1.4 

Imp fl oz.) 

S-NT196

S-NT197

HA-22

< PERIODIC MAINTENANCE >

REFRIGERANT

PERIODIC MAINTENANCE

REFRIGERANT

Collection and Charge

INFOID:0000000009160186

SETTING OF SERVICE TOOLS AND EQUIPMENT

Discharging Refrigerant

Evacuating System and Charging Refrigerant

Procedure

1.

Shut-off valve

2.

A/C service valve

3.

Recovery/recycling recharging 
equipment

JSIIA0238ZZ

1.

Shut-off valve

2.

A/C service valve

3.

Recovery/recycling recharging 
equipment

4.

Refrigerant container (HFC-134a)

5.

Weight scale (J-39650)

6.

Vacuum pump (J-39649)

7.

Manifold gauge set (J-39183)

A.

Preferred (best) method

B.

Alternative method

C.

For charging

JSIIA0239ZZ

REFRIGERANT

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WARNING:

Never breathe 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 J-2210 [HFC-134a (R-134a) recycling equipment] or J-2209 [HFC-134a (R-134a) recovery equip-
ment]. Ventilate work area before resuming service if accidental system discharge occurs. Additional
health and safety information may be obtained from refrigerant and lubricant manufacturers.

1.

CHECK A/C SYSTEM

1.

Check that A/C system operates normally. (This work should be performed by GT-R certified NISSAN
dealer.)

2.

Check if there is a large amount of leakage of refrigerant or lubricant. 

CAUTION:

Never perform the lubricant return operation if a large amount of leakage of lubricant is detected.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Check for refrigerant leakage. Refer to 

HA-28, "Inspection"

.

2.

LUBRICANT RETURN OPERATION

1.

Start the engine and run it as follows. 

-

Engine speed: Idle – 1,200 rpm

-

A/C switch: ON

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Fan speed: Maximum position

-

Set temperature: Full hot

-

Intake position: Recirculation (REC)

2.

Perform lubricant return operation for approximately 10 minutes. 

3.

Stop the engine.

>> GO TO 3.

3.

CHECK RECOVERY/RECYCLING RECHARGING EQUIPMENT

1.

Operate recovery/recycling recharging equipment. 

CAUTION:

• Follow the instructions of the manufacturer for the handling or maintenance of the equipment. 
• Never fill the equipment with undesignated refrigerant.

2.

Check the gauge pressure of recovery/recycling recharging equipment. 

Is there pressure?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

DISCHARGE REFRIGERANT INSIDE PIPES

Discharge the refrigerant from the high-pressure hose and low-pressure hose of recovery/recycling recharging
equipment. 

>> GO TO 5.

5.

CONNECT RECOVERY/RECYCLING RECHARGING EQUIPMENT

1.

Remove the service valve caps from the vehicle. 

2.

Connect recovery/recycling recharging equipment to the service valves. 

>> GO TO 6.

6.

DISCHARGE REFRIGERANT FROM THE VEHICLE

Operate recovery/recycling recharging equipment to discharge the refrigerant from the vehicle. 

>> GO TO 7.

7.

REMOVE ANY REMAINING REFRIGERANT

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REFRIGERANT

Evacuate air for approximately 10 minutes or more to remove any remaining refrigerant integrated to the com-
pressor oil, etc. 

>> GO TO 8.

8.

REPLACE OR REPAIR REFRIGERANT SYSTEM PARTS

1.

Replace or repair the malfunctioning part. 

CAUTION:

• Always use a new O-ring for the parts that the cooler system was removed. 
• Apply compressor oil to the O-rings of piping when installing the piping. However, never apply it

to the threads. 

2.

Adjust the compressor oil amount according to the replaced parts. (This work should be performed by GT-
R certified NISSAN dealer.)

>> GO TO 9.

9.

EVACUATE AIR FROM THE REFRIGERANT SYSTEM

Evacuate air from the refrigerant system for approximately 25 minutes or more. 

CAUTION:

Evacuate air for at least approximately 15 minutes or more if the parts are replaced. 

>> GO TO 10.

10.

CHECK AIRTIGHTNESS OF REFRIGERANT SYSTEM

Check the airtightness of the refrigerant system for approximately 25 minutes or more. 

CAUTION:

Check the airtightness for at least approximately 15 minutes or more if the parts are replaced. 

Does the pressure decrease?

YES

>> GO TO 11.

NO

>> GO TO 8.

11.

CHECK REFRIGERANT LEAKAGE

1.

Connect refrigerant recovery/recycling recharging equipment or manifold gauge set (SST: J-39183). 

2.

Charge the refrigerant of approximately 200 g (7.05 oz) to the refrigerant system. 

3.

Check for refrigerant leakage. Refer to 

HA-28, "Inspection"

.

NOTE:
When using electrical leak detector (SST: J-41995). Refer to 

HA-29, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> Repair or replace parts according to the inspection results.

12.

CHARGE REFRIGERANT

1.

Connect recovery/recycling recharging equipment or manifold gauge set (SST: J-39183). 

2.

Evacuate air again. 

3.

Charge the specified amount of refrigerant to the refrigerant system. 

>> GO TO 13.

13.

CHECK REFRIGERANT LEAKAGE

Check for refrigerant leakage again. Refer to 

HA-28, "Inspection"

.

NOTE:
When using electrical leak detector (SST: J-41995). Refer to 

HA-29, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> GO TO 6.

14.

CHECK OPERATION

Check the A/C system for normal operation. Refer to 

HA-26, "Inspection"

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