Cummins ISX11.9 CM2250 – Service Manual 009-051   Refrigerant Compressor

WARNING  To protect the environment, liquid refrigerant systems must be properly emptied and filled using equipment that prevents the release of refrigerant gas into the atmosphere. Federal law requires capturing and recycling the refrigerant.

NOTE: If the refrigerant compressor is only being removed to access other components, refrigerant system depressurization is not required. Leave the hoses connected and properly support the refrigerant compressor to other vehicle components.

• Depressurize the refrigerant system only if complete removal of the refrigerant compressor is required. Refer to the OEM service manual.
• Remove the cooling fan drive belt. Refer to Procedure 008-002 in Section 8.
• Remove the refrigerant compressor belt. Refer to Procedure 009-052 in Section 9.

Remove the four refrigerant compressor mounting capscrews.

Remove the refrigerant compressor.

Inspect the refrigerant compressor pulley for cracks or broken grooves. Replace the refrigerant compressor if it is damaged.

Refer to the OEM service manual for proper compressor inspection on the various types and configurations available.

Install the four mounting capscrews through the refrigerant compressor and refrigerant compressor bracket.

Refer to the OEM service manual for torque specifications.

• Install the refrigerant compressor belt. Refer to Procedure 009-052 in Section 9.
• Install the fan drive belt. Refer to Procedure 008-002 in Section 8.
• Fill the refrigerant system, if depressurized. Refer to the OEM service manual.
• Operate the engine and check for leaks.