DISC 3T5520 - Caterpillar

Removal Procedure
Effective July 1, 1992 regulations prohibit the venting of any refrigerant into the atmosphere. Refer to Caterpillar publications Service Manuals, SENR3334, SENR5664, and NEDG5065 for the proper procedure, the proper equipment, and the proper tools needed in order to reclaim refrigerant from any Caterpillar equipment.
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, hoses, and tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to prevent contaminants from entering the system.
Park the machine on a hard, level surface. Engage the parking brake and chock the wheels. Turn the disconnect switch to the OFF position.
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.
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Remove four bolts (1) and the washers. Remove grill assembly (2) .
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Disconnect two hose assemblies (3) from condenser (4). Remove the O-rings from each of the hose assemblies.
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Remove six bolts (5) and the washers that secure condenser (4) to the machine. Remove the condenser from the machine.Installation Procedure
Clean all parts and inspect all parts. If any parts are worn or damaged, use new Caterpillar parts for replacement.
Lubricate the O-rings with an appropriate lubricant.
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Place condenser (4) into position. Install six bolts (5) and the washers that secure the condenser to the machine.
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Install the O-rings to each of the hose assemblies. Connect two hose assemblies (3) to condenser (4) .
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Place grill assembly (2) into position. Install four bolts (1) and the washers that secure the grill assembly to the machine.
Charge the air conditioning system. See Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant"for the proper procedure.