Owner's Manual

MTC-16

LUBRICANT

PFP:KLG00

Maintenance of Lubricant Quantity in Compressor

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The lubricant in the compressor circulates through the system with the refrigerant. Add lubricant to compres-

sor when replacing any component or after a large refrigerant leakage has 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

Name: Genuine Nissan A/C System Lubricant Type R or equivalent

Part number: KLH00-PAGR0

CHECKING AND ADJUSTING

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

1. LUBRICANT RETURN OPERATION

Can lubricant return operation be performed?

● A/C system works properly.

● There is no evidence of a large amount of lubricant leakage.

Yes or No

Yes >> GO TO 2.

No >> GO TO 3.

2. PERFORM LUBRICANT RETURN OPERATION

1. Start engine, and set the following conditions:

– Test condition

Engine speed: Idling to 1,200 rpm

A/C switch: ON

Blower speed: Max. position

2. Perform lubricant return operation for about 10 minutes.

3. Stop engine.

CAUTION:

If excessive lubricant leakage is noted, do not perform the lubricant return operation.

>> GO TO 3.

3. CHECK COMPRESSOR

Should the compressor be replaced?

Yes or No

Yes >> GO TO MTC-68, "Removal and Installation" .

No >> GO TO 4.

4. CHECK ANY PART

Is there any part to be replaced? (Evaporator, condenser, liquid tank or in case there is evidence of a large

amount of lubricant leakage.)

Yes or No

Yes >> GO TO MTC-17, "Lubricant Adjusting Procedure for Components Replacement Except Compres-

sor" .

No >> Carry out the A/C performance test.