64 53 521 Replacing Safety Pressure Switch

64 53 521 Replacing Safety Pressure Switch







WARNING:
Risk of injury.
Refrigerant circuit is under high pressure.
Follow safety instructions handling R 134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil.







IMPORTANT:
Risk of damage.
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







Disconnect plug connection (1).
Release safety pressure switch (2).

Installation:
Tightening torque 64 53 14AZ.
Replace sealing ring.







After installation:
- Evacuate and fill A/C system

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