90588 Mercury SCREW (INCLUDES O-RING)

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.
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.
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 Dealer Service Tool Catalog, NENG2500, "Air Conditioning Tools" for the correct tools.
Illustration 1 g01302693
Remove belt (1) . Refer to Operation and Maintenance Manual, "Belt - Inspect/Replace".
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Remove bolt (3) and plate (2) .
Disconnect harness assembly (4) .
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Disconnect harness assemblies (5) .
Remove bolts (6) .
Remove refrigerant compressor (7) .Installation Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     4C-2959     Air Conditioner Oil     1    
B     206-1990     Air Conditioner Oil (1)     1    
( 1 ) This is used for EAME only.
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.
Note: Check the O-ring seals, and the seals for wear or for damage. Replace the components, if necessary.Note: Apply Tooling (A) or Tooling (B) to all O-ring seals prior to installation.
Illustration 4 g01303008
Position refrigerant compressor (7) . Install bolts (6) .
Connect harness assemblies (5) .
Illustration 5 g01302987
Position plate (2) . Install bolt (3) . Tighten bolt (3) to a torque of 25 7 N m (18 5 lb ft).
Connect harness assembly (4) .
Illustration 6 g01302693
Install belt (1) . Refer to Operation and Maintenance Manual, "Belt - Inspect/Replace".
Recharge the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct procedure. Refer to Dealer Service Tool Catalog, NENG2500, "Air Conditioning Tools" for the correct tools.End By: Install the engine side guard on the right side of the machine. Refer to Disassembly and Assembly, "Engine Side Guards - Remove and Install".