2. Evacuate the system.
- a) Install the adapter on the vacuum pump.
- b) Connect the central hose of the pressure gauge block to the vacuum pump adapter.
- c) Open both valves of the pressure gauge block and turn on the vacuum pump.
- d) After at least 10 minutes, check that the low pressure gauge shows 100 kPa or more.
Note: If the pressure is lower, close both gauge block valves and turn off the vacuum pump.
Check the system for leaks and troubleshoot.
(The original can be viewed on the website: Toyotaman.ru)
- d) Close both gauge block valves and turn off the vacuum pump.
- e) Leave the system in this state for at least 5 minutes, check that the instrument readings do not change.
3. Install the charging cylinder.
Note: When working with the charging cylinder, always follow the requirements described in its instructions.
- a) Fill the charging cylinder with the required amount of refrigerant.
- b) Connect the central hose to the charging cylinder.
Caution, do not open the valves on the pressure gauge block!
- c) Open the valve on the charging cylinder
- d) Press the valve core located on the side of the gauge block and release air from the central hose.
4. Check the tightness of the system.
- a) Open the high pressure valve on the gauge block and fill the system with refrigerant.
- b) When the pressure on the low pressure side reaches 98 kPa, close the high pressure valve.
- c) Check the tightness of the system with a leak detector.
- d) If leaks are detected after repair, repeat the vacuuming procedure.
5. Top up the system with refrigerant. After checking for leaks, bring the amount of refrigerant to the standard
Attention!
- Never charge the system through the high pressure side while the engine is running.
- Do not open the low pressure valve when the system is being charged with liquid refrigerant.
- a) Open the high pressure valve of the pressure gauge block completely.
- b) Fill the system completely, then close the high pressure valve.
Note: A fully charged system is indicated by the absence of bubbles in the service window.
6. Disconnect the pressure gauge block from the service valves.
Note: Close the pressure gauge block valves first!
7. Install the plugs on the cooling system service valves.