RAIL AS-LH 4712188 - Caterpillar

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Remove the right side engine side guard.Removal Procedure
Personal injury can result from contact with refrigerant.Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury.Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant.Always use precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area.Personal injury or death can result from inhaling refrigerant through a lit cigarette.Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas, can cause bodily harm or death.Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system.
Turn the battery disconnect switch to the OFF position.
Recover the refrigerant. Refer to Service Manual, SENR5664, "All Products Air Conditioning and Heating Systems with R-134a for all Caterpillar Machines" for the recovery and the charging procedure. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the correct tools.
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Remove belt (3). Refer to Operation and Maintenance Manual, "Belt - Inspect/Replace" to remove and install the belt.
Disconnect hose assemblies (1) and (5). Disconnect harness assembly (4).
Remove bolts (2) and position the harness assembly out of the way. Remove refrigerant compressor (6).Installation Procedure
Install refrigerant compressor (6) in the reverse order of removal.
Tighten bolts (2) to a torque of 22 N m (195 lb in).