Nissan X-Trail 32. Manual - part 1375

LUBRICANT

HA-159

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[R9M (FOR RUSSIA)]

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LUBRICANT

Description

INFOID:0000000011006161

MAINTENANCE OF LUBRICANT LEVEL

The compressor lubricant is circulating in the system together with the refrigerant. It is necessary to fill com-
pressor with lubricant when replacing A/C system parts or when a large amount of refrigerant leakage is
detected. It is important to always maintain lubricant level within the specified level. Or otherwise, the following
conditions may occur.
• Insufficient lubricant amount: Stuck compressor
• Excessive lubricant amount: Insufficient cooling (caused by insufficient heat exchange)

Inspection

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If a compressor is malfunctioning (internal noise, insufficient cooling), check the compressor oil.

1.

COMPRESSOR OIL JUDGMENT

1.

Remove the compressor. Refer to 

HA-167, "Removal and Installation"

.

2.

Sample a compressor oil and judge on the figure.

Judgement result 1>>Replace compressor only.
Judgement result 2>>Replace compressor and liquid tank.

Perform Lubricant Return Operation

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CAUTION:

If a large amount of refrigerant or lubricant leakage is detected, never perform lubricant return opera-
tion.

1.

Start the engine and set to the following conditions.
• Engine speed: Idling to 1,200 rpm
• A/C switch: ON
• Fan (blower) speed: Maximum speed set
• Intake door position: Recirculation
• Temperature setting: Full cold

2.

Perform lubricant return operation for approximately 10 minutes.

3.

Stop the engine.

4.

Lubricant return operation is complete.

Lubricant Adjusting Procedure for Components Replacement Except Compressor

INFOID:0000000011006164

Fill with lubricant for the amount that is calculated according to the following conditions.
Example: Lubricant amount to be added when replacing evaporator and condenser & liquid tank [m  (Imp fl
oz)] = 35 (1.2) + 15 (0.5) + 

α

Name

: ND-OIL8

JSIIA0927GB

HA-160

< BASIC INSPECTION >

[R9M (FOR RUSSIA)]

LUBRICANT

Lubricant Adjusting Procedure for Compressor Replacement

INFOID:0000000011006165

1.

Drain lubricant from removed compressor and measure lubricant amount.
• Remove drain bolt 

, and then drain lubricant from drain port.

• Measure total amount of lubricant that is drained from

removed compressor.

2.

Drain lubricant from a new compressor that is calculated accord-
ing to the following conditions.

CAUTION:

If lubricant amount that is drained from removed compressor is less than 60 m  (2.1 Imp fl oz),
perform calculation by setting “D” as 40 m  (1.4 Imp fl oz).

Example: Lubricant amount to be drained from a new compressor when replacing compressor and con-
denser & liquid tank [m  (Imp fl oz)] [D = 60 (2.1), 

α

 = 5 (0.2)]

110 (3.9) 

−

 [60 (1.6) + 20 (0.7) +  5 (0.2)] = 15 (0.5)

3.

Tighten drain bolt to the specified torque

Conditions

Lubricant amount to be added to A/C system

m

 (Imp fl oz)

Replace evaporator

35 (1.2) 

Replace condenser & liquid tank

20 (0.7)

Refrigerant leakage is detected

Large amount leakage

30 (1.1)

Small amount leakage

—

Lubricant amount that is recycled together with refrigerant during recycle operation

α

JMIIA3527ZZ

Amount to be drained (A) [m  (Imp fl oz)] = F 

−

 (D + 

S + R + 

α

)

F

: Lubricant amount that a new compressor con-
tains [110 (3.9)]

D

: Lubricant amount that is drained from re-
moved compressor

S

: Lubricant amount that remains inside of re-
moved compressor [20 (0.7)]

R

: Lubricant amount to be added according to 
components that are removed except compres-
sor

α

: Lubricant amount that is recycled together 
with refrigerant during recycle operation

Conditions

Lubricant amount to be added to A/C system

m

 

(Imp  fl  oz)

Replace evaporator

35 (1.2)

Replace condenser & liquid tank

20 (1.1)

JPIIA1455GB

LUBRICANT

HA-161

< BASIC INSPECTION >

[R9M (FOR RUSSIA)]

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4.

Install compressor and check the operation.

Specified torque

: 30 N·m (3.1 kg-m, 22 ft-lb)

HA-162

< BASIC INSPECTION >

[R9M (FOR RUSSIA)]

PERFORMANCE TEST

PERFORMANCE TEST

Inspection

INFOID:0000000011006166

INSPECTION PROCEDURE

1.

Connect recovery/recycling/recharging equipment (for HFC-134a) or manifold gauge.

2.

Start the engine, and set to the following condition.

Test condition

3.

Maintain test condition until A/C system becomes stable. (Approximately 10 minutes)

4.

Check that test results of “recirculating-to-discharge air temperature” and “ambient air temperature-to-
operating pressure” are within the specified value.

5.

When test results are within the specified value, inspection is complete.
If any of test result is out of the specified value, perform diagnosis by gauge pressure. Refer to 

HA-164,

"Symptom Table"

.

RECIRCULATING-TO-DISCHARGE AIR TEMPERATURE TABLE

AMBIENT AIR TEMPERATURE-TO-OPERATING PRESSURE TABLE

Surrounding condition

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

Vehicle condition

Door

Closed

Door glass

Full open

Hood

Open

Engine speed

Idle speed

A/C condition

Temperature control switch or dial

Full cold

A/C switch

ON

Air outlet

VENT (ventilation)

Intake door position

Recirculation

Fan (blower) speed

Maximum speed set

Inside air (Recirculating air) at blower assembly inlet

Discharge air temperature from center ventilator

°

C (

°

F)

Relative humidity

%

Air temperature

°

C (

°

F)

50 – 60

20 (68)

4.9 – 6.9 (41 – 44)

25 (77)

9.1 – 11.6 (48 – 53)

30 (86)

13.2 – 16.2 (56 – 61)

35 (95)

17.6 – 21.1 (64 – 70)

60 – 70

20 (68)

6.9 – 8.9 (44 – 48)

25 (77)

11.6 – 14.1 (53 – 57)

30 (86)

16.2 – 19.2 (61 – 66)

35 (95)

21.1 – 24.6 (70 – 76)