Focus L4-2.0L DOHC VIN 3 (2002)
Refrigerant: Testing and Inspection
Vacuum Leak Detection
R-134a Refrigerant Station & Refrigerant Identifier
SPECIAL TOOL(S)
WARNING: OBSERVE "HEALTH AND SAFETY PRECAUTIONS".
CAUTION: The refrigerant identifier must be used before the system is evacuated, otherwise the service station may become contaminated.
Contaminated refrigerant must be disposed of as special waste. The manufacturer's instructions must be followed when dealing with the service station.
1. Empty the air conditioning system under suction and evacuate it.
2. Carry out the leak test.
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Close the gauge head manual valves.
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Switch off the service station vacuum pump.
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Watch the low pressure gauge on the service station. If the gauge reading increases by more than 20 mbar (2 kPa or 0,29 psi), the system is
leaking.
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If there are leaks, fill the air conditioning system with approx. 300 g of refrigerant and check it using leak testing equipment.
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If the system is free of leaks, continue with the filling procedure.
NOTE: If an air conditioning system that was filled with refrigerant is being evacuated, then some refrigerant will still be in the refrigerant oil in
the compressor. This residual amount of refrigerant may still evaporate and during the leak test may result in a minor increase on the pressure
gauge (max. two sub-divisions). However, despite this pressure increase the air conditioning system is free from leaks.
