64 50... Leak-testing with leak tester device
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R 134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil.
Restart engine only when A/C system has been correctly filled.
Follow instructions for opening and replacing parts in refrigerant circuit.
If A/C system is opened for more than 24 hours:
Replace desiccant insert for A/C system
Necessary preliminary tasks:
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation
Carry out leak-testing with a leak tester device from the workshop equipment catalogue following the device manufacturer's operating instructions.
If leaks not to be localized are already identified during evacuation, the A/C system must nevertheless be filled . Then test for leaks with leak tester device.
Therefore always conduct the leak test below the lines and components to be tested.
Shield lines and components against strong blasts of air (wind, drawing off).
Tighten down loose lines, mark leaks.
Then draw off A/C system and seal off or repair leakage points.
Then refill A/C system and test for leaks.