335F CR Excavator Machine Systems Caterpillar

Refrigerant Receiver-Dryer - Remove and Install

Usage:

335F FEP

Removal Procedure

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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 refrigerant. Refer to Service Manual, SENR5664, "All Products Air Conditioning and Heating R-134a for All Caterpillar Machines" for the recovery and the charging procedure. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the correct tools.
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Illustration 1 g03752336
Open the left side access door (1).
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Illustration 2 g03752337
Remove bolt (2) and disconnect hose assembly (4).
Remove bolts (3) and pipe assembly (5).
Remove bolts (6) and refrigerant receiver-dryer (7)