853091 Mercruiser NUT

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, "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.
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 System with R-134a Refrigerant, SENR5664, "Machine Preparation for Troubleshooting".
Recover the refrigerant from the air conditioning system. Refer to Air Conditioning and Heating System with R-134a Refrigerant, SENR5664, "Refrigerant Recovery".
Illustration 1 g00515757
Disconnect harness assembly (5) at the electrical connection.
Remove two cable straps (3) and (4) that hold the electrical connectors to clutch and refrigerant compressor (1).
Disconnect harness assembly (2) at the electrical connection. Position harness assembly (2) out of the way.
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Disconnect two hose assemblies (6) from clutch and refrigerant compressor (1). Install caps and plugs to all openings in order to avoid system contamination.
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Put identification on bolts (7) for installation purposes. Remove three bolts (7), the hard washers, and the spacer that holds guard assembly (8) to clutch and refrigerant compressor (1).
Remove guard assembly (8) from clutch and refrigerant compressor (1).
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Loosen two bolts (9) and the hard washers.
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Loosen two nuts (10) on the rod until the V-belt is loosened.
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Remove nut (11), the hard washers, and the bolt. Remove the V-belt from clutch and refrigerant compressor (1).
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Remove two bolts (9) and the hard washers that hold clutch and refrigerant compressor (1) to the compressor bracket. Remove clutch and refrigerant compressor (1) from the machine. Installation Procedure
Check all of the O-ring seals and the components for wear or damage. Replace the components, if necessary.
Lubricate all of the O-ring seals lightly with the lubricant that is being sealed.
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Check the amount and condition of the oil in clutch and refrigerant compressor (1). Refer to Air Conditioning and Heating System with R-134a Refrigerant, SENR5664, "Refrigerant Compressor Oil - Check".
Position clutch and refrigerant compressor (1) to the machine. Install two bolts (9) and the hard washers that hold clutch and refrigerant compressor (1) to the compressor bracket. Note: Do not tighten bolts (9) at this time.
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Install the V-belt to clutch and refrigerant compressor (1). Install nut (11), the hard washers, and the bolt. Tighten nut (11)