SENSOR-PRESSURE 3866469 - Caterpillar

Removal Procedure
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.
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, NEDG2500, "Air Conditioning Tools" for the correct tools.
Open the engine hood.
Illustration 1 g01441433
Open access door (1) on the left side of the machine.
Illustration 2 g01442842
Disconnect tube assemblies (2) and (3) .
Remove clamps (4) and (6). Remove refrigerant receiver-dryer (5) .Installation Procedure
Illustration 3 g01442842
Position refrigerant receiver-dryer (5) and install clamps (4) and (6) .
Connect tube assemblies (2) and (3) .
Illustration 4 g01441433
Close access door (1) on the left side of the machine.
Close the engine hood.,, End By: Charge the air conditioner system. Refer to Service ManualSENR5664"Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct procedure. Refer to Special PublicationNEDG2500"Air Conditioning Tools" for the correct tools.