CYLINDER AS 10R0067 - Caterpillar

Personal injury can result from contact with refrigerant.This system is under pressure at all times, engine running or not. 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, 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.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 either away from the machine or where they can be seen.
Before you do a performance check of the air conditioning system, check the following items:
Check the condenser.
Check for any type of restriction that will obstruct the air flow. Check for dirt, insects, plastic bags, etc.
With condensers that are mounted on the roof, always check that both the fan motors are running. Check for restrictions. A clean condenser will lead to longer life for the compressor.
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Clean the fresh air filters.
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Clean the recirculation filters.
Replace the in-line dryer annually.Reference: Refer to the topics of Service Manual, SENR5664, "Receiver (Refrigerant Dryer) Remove and Install" and of Service Manual, SENR5664, "In-Line Refrigerant Dryer- Remove and Install" in the Service Manual for your machine.