789D and 789D XQ Off-Highway Trucks Engine Supplement Caterpillar


Refrigerant Condenser - Remove and Install

Usage:

789D SHH

Removal Procedure

Start By:

  1. Remove the ladder.

  2. If equipped, remove the radiator grill.

------ WARNING! ------

Personal injury can result from contact with refrigerant.

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 precaution 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.

Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system.


  1. Recover the air conditioner refrigerant from the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant". Refer to Special Publication, NEDG2500, "Air Conditioning Tools" for the correct procedure.


    Illustration 1g03112803

  2. Use a suitable lifting device in order to remove guard (1). The weight of guard (1) is approximately 50 kg (110 lb).


    Illustration 2g03112805

  3. Disconnect hose (3). Remove bolts (2). Repeat this step for the opposite side.

  4. Remove refrigerant condenser (4).

Installation Procedure

  1. Install refrigerant condenser (4) in the reverse order of removal.

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