CAMSHAFT AS 1878648 - Caterpillar

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Remove the hood. Refer to Disassembly and Assembly, "Hood - Remove and Install".
Release the system pressure for the brakes and the hydraulics. Refer to Disassembly and Assembly, "System Pressure - Release".
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.
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.
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.
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, NEDG5065, "Air Conditioning Tools" for the correct tools.
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Remove bolts (2) and cover assembly (1).
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Remove bolts (3) and reposition metering pump (4) out of the way.
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Turn valves (5) to the OFF position.
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Disconnect hose assemblies (6).
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Disconnect cable assembly (7) and harness assemblies (8). Remove bolts (9).
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Disconnect hose assemblies (10) and hoses (12). Disconnect clamps (11).
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Disconnect ground strap (14). Remove four pin assemblies (13) from the cab.
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Attach Tooling (A) and a suitable lifting device to cab (15). The weight of cab (15) is approximately 1315 kg (2900 lb).
Remove bolts (16). Remove cab (15).