303.5D, 304D, 305.5D and 305D Mini Hydraulic Excavators Engine Supplement Refrigerant Condenser - Remove and Install Caterpillar


Refrigerant Condenser - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

    ------ 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" for the correct procedure. Refer to Special Publication, NEDG2500, "Air Conditioning Tools" for the correct tools.



    Illustration 1g01222655

  1. Disconnect clamps (1) and position receiver-dryer (2) to the side.



    Illustration 2g01222656

  1. Remove bolts (4) and remove bracket (3) .



    Illustration 3g01222660

  1. Disconnect hose assemblies (5) from the top and the bottom of refrigerant condenser (6). Remove bolts (7) and remove refrigerant condenser (6) .

Installation Procedure




    Illustration 4g01222660

  1. Position refrigerant condenser (6) and install bolts (7). Connect hose assemblies (5) to the top and the bottom of refrigerant condenser (6) .



    Illustration 5g01222656

  1. Position bracket (3) and install bolts (4) .



    Illustration 6g01222655

  1. Position receiver-dryer (2) and connect clamps (1) .

  1. Charge 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.

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