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Switch-A/C Low Pressure: Installation

Fig 1: A/C Low Pressure Switch - Typical
GC0020905Courtesy of DAIMLERCHRYSLER CORP.
  1. Lubricate a new O-ring seal with clean refrigerant oil and install it onto the accumulator fitting. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  2. Install the A/C low pressure switch (2) onto the top of the A/C accumulator (1). Hand-tightened the switch securely.
  3. Connect the wiring harness connector (3) to the A/C low pressure switch.
  4. Reconnect the battery negative cable.
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