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. Refer to Refrigerant System Specifications Specifications.

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.