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.
   1. Yes or No 

   Yes: Go to next step.

   No: Go to step  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 

      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.

   OK: Go to next step.

3. Check Compressor 

   Should the compressor be replaced?

   1. Yes or No 

   Yes: Go to LUBRICANT ADJUSTMENT PROCEDURE FOR COMPRESSOR REPLACEMENT .

   No: Go to next step.

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.)

   1. Yes or No 

   Yes: Go to LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR .

   No: Carry out the A/C performance test.