Checking And Adjusting: Notes

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 properly.
   • There is no evidence of a large amount of lubricant leakage.

   Yes or No 

   1. Yes : GO TO 2.
   2. No : GO TO  3.
2. PERFORM LUBRICANT RETURN OPERATION, PROCEEDING AS FOLLOWS: 
   1. Start engine, and set the following conditions:

      Test condition 

      Engine speed: Idling to 1,200 RPM 

      A/C or AUTO switch: ON 

      Blower speed: Max. position 

      Temp. control: Optional [Set so that intake air temperature is 25 to 30°C (77 to 86°F ).] 

   2. Next item is for V-6 compressor. Connect the manifold gauge, and check that the high pressure side pressure is 588 kPa (6 kg/cm ²  , 85 psi) or higher. 

      If less than the reference level, attach a cover to the front face of the condenser to raise the pressure. 

   3. Perform lubricant return operation for about 10 minutes.
   4. Stop engine.
   CAUTION: If excessive lubricant leakage is noted, do not perform the lubricant return operation.
   1. OK : GO TO 3.
3. CHECK COMPRESSOR 

   Should the compressor be replaced?

   Yes or No 

   1. Yes : GO TO , "LUBRICANT ADJUSTING PROCEDURE FOR COMPRESSOR REPLACEMENT ".
   2. 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 

   1. Yes : GO TO , "LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR ",.
   2. No : Carry out the A/C performance test.