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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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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Personal injury can result from contact with refrigerant. This system is under pressure at all times, even if the engine is not running. Heat should never be applied to a charged system. 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 caution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, evacuate the system recovering the refrigerant before removing the fitting. 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. Before any checks of the air conditioning and heating system are made, move the machine to a smooth horizontal surface. Lower all implements to the ground. Make sure the transmission is in neutral or park and that the parking brake is engaged. Keep all other personnel away from the machine or where they can be seen. |
- Before any service work is performed on the air conditioning system, refer to Air Conditioning and Heating Testing and Adjusting, SENR5664, "Machine Preparation for Troubleshooting".
- Recover the refrigerant from the air conditioning system. Refer to Air Conditioning and Heating Testing and Adjusting, SENR5664, "Refrigerant Recovery".
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Illustration 1 g00472257 Show/hide table
Illustration 2 g00472260 - Put identification on two wire harnesses for installation purposes. Disconnect two wire harnesses (2) at the electrical connections.
- Loosen two bolts (7).
- Loosen two adjusting nuts (3). Remove nut (4), the bolt and the washer. Move the air conditioning compressor toward the engine and remove V-belt (1).
- Disconnect two hose assemblies (5) and (6) from the air conditioning compressor. Place protective covers on the air conditioning compressor and the hose assemblies.
- Remove two bolts (7) and the washers. Remove the air conditioning compressor from the bracket assembly.
- Verify that all of the components of the refrigerant compressor are clean and free of foreign material prior to installation.
- Inspect all components for wear and replace the components, if necessary.
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Illustration 3 g00472260 - Position the air conditioner compressor on the bracket assembly, as shown. Install two bolts (7).
- Install O-ring seals on hose assemblies (6) and (7). Lubricate the O-ring seals with refrigerant oil. Connect hose assemblies (6) and (7) onto the air conditioning compressor.
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Illustration 4 g00472257 - Position the V-belt on the pulleys. Install nut (4), the bolt, and the washers. Do not tighten nut (4).
- Connect two wire harnesses (2) at the electrical connections.
- Adjust the tension on V-belt (1). For complete details on V-belt tension, refer to the Operation and Maintenance Manual, "Air Conditioner Belt - Inspect/Adjust/Replace".
- Tighten nut (4). Tighten two nuts (3) after the correct belt tension has been reached.
- Evacuate the air conditioning system. Refer to Air Conditioning and Heating Testing and Adjusting, SENR5664, "Refrigerant System Evacuate".
- Recharge the air conditioning system. Refer to Air Conditioning and Heating Testing and Adjusting, SENR5664, "Refrigerant System - Charge".