COVER 2025347 - Caterpillar

Removal Procedure
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.
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.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
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, NENG2500, "Air Conditioning Tools" for the correct tools.
Remove the belt. Refer to Operation and Maintenance Manual, "Belts - Inspect/Replace".
Illustration 1 g01418949
Disconnect harness assemblies (1) .
Remove bolts (3) and reposition refrigerant compressor (2) .
Illustration 2 g01418966
Disconnect hose assemblies (4) and remove refrigerant compressor (2) .Installation Procedure
Note: Cleanliness is an important factor. Before you begin the installation procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.
Illustration 3 g01418966
Position refrigerant compressor (2) and connect hose assemblies (4) .
Illustration 4 g01418949
Position refrigerant compressor (2) and install bolts (3) .
Connect harness assemblies (1) .
Install the belt. Refer to Operation and Maintenance Manual, "Belts - Inspect/Replace".
Charge 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, NENG2500, "Air Conditioning Tools" for the correct tools.