Refrigerant Oil: Service and Repair

Air Conditioning (A/C) System Oil Charge Replenishing

Special Tools

J-41459 - A/C Oil Injector

For equivalent regional tools, refer to Special Tools Tools and Equipment.

Note:
The addition of lubricating oil must be carried out whenever any component is replaced in the A/C system to compensate for oil trapped in the removed component. Carrying out this procedure ensures the A/C system always has the correct amount of oil as specified by the manufacturer.

1. Evacuate the A/C system for a minimum of 30 minutes and to minus 100 kPa negative gauge pressure. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.





Note:
Make sure the valve (3) is in the closed position.

2. Remove the plunger (1) from the J-41459 - injector(2) and pour in the appropriate amount of polyalkylene glycol (PAG) oil specified for the replaced component.

3. Jiggle the plunger (1) to remove any air in the J-41459 - injector(2).





4. With the A/C system still evacuated, connect the J-41459 - injector(1) to the low side charging port (2).

5. Turn the J-41459 - injector shut off valve tap (3) to the open position to depress the low side charging port (2) schrader valve.

The oil should now be drawn into the A/C system due to the low pressure in the A/C system.





6. Once all the oil in the J-41459 - injector(1) has moved into the A/C system, turn the shut off valve tap (3) to the closed position.

7. Remove the J-41459 - injector(1) from the low side charging port (2).

8. Repeat steps 2 to 7 if more oil is required.