LINES GP-COUPLER 2356920 - Caterpillar

Recover the air conditioner refrigerant from the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct procedure. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the correct tools.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Drain the engine coolant into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change".
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Remove screws (1) and cover (2) .
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Remove screws (4) and cover (3) .
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Remove louver (5) .
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Remove screw (6) .
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Remove louvers (7) .
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Remove screws (8) and duct (9) .
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Remove screw (10) and cover (11) .
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Disconnect harness assembly (12) .
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Disconnect hose assemblies (13) and (14). Disconnect harness assemblies (15) and (16) .
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Disconnect hoses (18) and (19). Disconnect cable assembly (17) .
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Disconnect cable assembly (20) .
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Remove bolts (21). Remove the heater and air conditioning unit (22) .