Nissan Teana J32. Manual - part 650

 

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Nissan Teana J32. Manual - part 650

 

 

HA-28

< ON-VEHICLE MAINTENANCE >

LUBRICANT

LUBRICANT

Maintenance of Lubricant Quantity

INFOID:0000000003795916

The lubricant in the compressor circulates through the system the refrigerant. Add lubricant to compressor
when replacing any component or after a large refrigerant leakage occurred. It is important to maintain the
specified amount.
If lubricant quantity is not maintained properly, the following malfunctions may result:
• Lack of lubricant: May lead to a seized compressor.
• Excessive lubricant: Inadequate cooling (thermal exchange interference)

LUBRICANT

LUBRICANT RETURN OPERATION

Adjust the lubricant quantity according to the test group shown below.

1.

CHECK LUBRICANT RETURN OPERATION

Can lubricant return operation be performed?
• A/C system works normally.
• There is no evidence of a large amount of lubricant leakage.

CAUTION:

Never perform the lubricant return operation if excessive lubricant leakage is detected.

Is it successful?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

PERFORM LUBRICANT RETURN OPERATION

1.

Start the engine, and set to the following conditions:

-

Engine speed: Idling to 1,200 rpm

-

A/C switch: ON

-

Blower speed: Max. 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 REPLACEMENT PART

Should the compressor be replaced?

YES

>> Refer to 

HA-29, "Lubricant Adjusting Procedure for Compressor Replacement"

.

NO

>> Refer to 

HA-28, "Lubricant Adjusting Procedure for Components Replacement Except Compres-

sor"

.

Lubricant Adjusting Procedure for Components Replacement Except Compressor

INFOID:0000000003795917

Add the correct amount of lubricant to the system after replacing any of the following major components.
Amount of lubricant to be added:

Name

: NISSAN A/C System Oil Type S

Part replaced

Lubricant to be added to system

Remarks

Amount of lubricant

m

 (Imp fl oz.)

Evaporator

75 (2.6)

—

Condenser

35 (1.2)

—

Liquid tank

10 (0.4)

—

LUBRICANT

HA-29

< ON-VEHICLE MAINTENANCE >

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*: No addition of lubricant is needed if the refrigerant leakage is small.

Lubricant Adjusting Procedure for Compressor Replacement

INFOID:0000000003795918

1.

Check recovery/recycling recharging equipment gauges before connecting recovery/recycling recharging
equipment to vehicle. No refrigerant pressure should be displayed. Recover refrigerant from the equip-
ment lines if NG.

2.

Discharge refrigerant into the recovery/recycling recharging equipment. Measure lubricant discharged into
the recovery/recycling recharging equipment.

3.

Drain the lubricant from the old (removed) compressor into a graduated container and recover the amount
of lubricant drained.

4.

Drain the lubricant from the new compressor into a separate. Then clean container.

5.

Measure an amount of new lubricant installed equal to amount drained from old compressor. Add this
lubricant to new compressor through the suction port opening.

6.

Measure an amount of new lubricant equal to the amount recovered during discharging. Add this lubricant
to new compressor through the suction port opening.

7.

Add another 5 m  (0.2 Imp fl oz.) of lubricant at this time if the liquid tank also needs to be replaced.
Do not add this 5 m  (0.2 Imp fl oz.) of lubricant when replacing the compressor only.

In case of refrigerant leakage

30 (1.1)

Large leakage

—

Small leakage

 *

Part replaced

Lubricant to be added to system

Remarks

Amount of lubricant

m

 (Imp fl oz.)

SJIA0596E

HA-30

< ON-VEHICLE MAINTENANCE >

REFRIGERATION SYSTEM

REFRIGERATION SYSTEM

Inspection

INFOID:0000000003795977

1.

CHECK BLOWER MOTOR OPERATION

Check blower motor operation. Refer to the following. 
•

HAC-68, "Component Function Check"

 (WITHOUT 7 INCH DISPLAY) 

•

HAC-193, "Component Function Check"

 (WITH 7 INCH DISPLAY)

Is the inspection result normal?

YES

>> GO TO 2.

NO

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

2.

CHECK COMPRESSOR OPERATION

Check compressor operation. Refer to the following. 
•

HAC-72, "Component Function Check"

 (WITHOUT 7 INCH DISPLAY)

•

HAC-197, "Component Function Check"

 (WITH 7 INCH DISPLAY)

Is the inspection result normal?

YES

>> GO TO 3.

NO

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

3.

CHECK REFRIGERANT CYCLE PRESSURE

Connect recovery/recycling recharging equipment to the vehicle and perform the diagnosis with the gauge
pressure. Refer to 

HA-8, "Trouble Diagnosis For Unusual Pressure"

.

Is the inspection result normal?

YES

>> Perform the performance test. Refer to 

HA-30, "Performance Chart"

.

NO

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

Performance Chart

INFOID:0000000003795978

TEST CONDITION

Testing must be performed as per the following:

TEST READING

Recirculating-to-discharge Air Temperature Table

Vehicle condition

Indoors or in the shade (in a well-ventilated place)

Doors

Closed

Door windows

Open

Hood

Open

Temperature control switch or dial

Max. COLD

Mode switch

 (Ventilation) set

Intake switch

 (Recirculation) set

 Fan (blower) speed

Max. speed set

Engine speed

Idle speed

Operate the air conditioning system for 10 minutes before taking measurements.

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature at center ventilator

°

C (

°

F)

Relative humidity

%

Air temperature

°

C (

°

F)

50 - 60

25 (77)

8.4 - 10.9 (47 - 52)

30 (86)

12.3 - 15.3 (54 - 60)

35 (95)

15.8 - 19.2 (60 - 67)

REFRIGERATION SYSTEM

HA-31

< ON-VEHICLE MAINTENANCE >

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Ambient Air Temperature-to-operating Pressure Table

Refrigerant Leakages

INFOID:0000000003795979

Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage may indicate an area of refrigerant leakage. Allow
extra inspection time in these areas when using either an electrical leak detector or fluorescent dye leak
detector (SST: J-42220).
Confirm the leakage with an electrical leak detector if dye is observed. It is possible a prior leakage was
repaired and not properly cleaned.
Do not stop when one leakage is found but continue checking for additional leakages at all system compo-
nents and connections when searching for leakages.
Move the probe along the suspected leakage area at 1 to 2 inches per second and no further than 1/4 inch
from the component when searching for refrigerant leakages using an electrical leak detector.

CAUTION:

Moving the electrical leak detector probe slower and closer to the suspected leakage area improves
the chances of finding a leakage.

60 - 70

25 (77)

10.9 - 13.4 (52 - 56)

30 (86)

15.3 - 18.3 (60 - 65)

35 (95)

19.2 - 22.7 (67 - 73)

Ambient air

High-pressure (Discharge side)

kPa (bar, kg/cm

2

, psi)

Low-pressure (Suction side)

kPa (bar, kg/cm

2

, psi)

Relative humidity

%

Air temperature

°

C (

°

F)

50 -70

25 (77)

1,065 - 1,295

(10.62 - 12.95, 10.9 - 13.2, 154.4 - 187.8)

215 - 261

(2.15 - 2.61, 2.1 - 2.6, 31.2 - 37.9)

30 (86)

920 - 1,120

(9.20 - 11.20, 9.4 - 11.4, 133.4 - 162.4)

230 - 287

(2.30 - 2.87, 2.3 - 2.9, 33.4 - 41.6)

35 (95)

1,150 - 1,406

(11.50 - 14.06, 11.7 - 14.3, 167.0 - 203.9)

287 - 355

(2.87 - 3.55, 2.9 - 3.6, 41.6 - 51.5)

40 (104)

1,363 - 1,659

(13.63 - 16.59, 13.9 - 16.9, 197.7 - 240.6)

320 - 392

(3.20 - 3.92, 3.3 - 3.9, 46.4 - 56.9)

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature at center ventilator

°

C (

°

F)

Relative humidity

%

Air temperature

°

C (

°

F)

 

 

 

 

 

 

 

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