140M and 150 Motor Graders Engine Supplement Refrigerant Compressor - Remove and Install Caterpillar


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

Removal Procedure


NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "AVSpare Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on AVSpare products.

Dispose of all fluids according to local regulations and mandates.


------ 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, NENG2500, "Air Conditioning Tools" for the correct tools.



    Illustration 1g01374496

  1. Remove bolts (1). Remove panel (2) .



    Illustration 2g01408925

  1. Remove belt (3). Refer to Operation and Maintenance Manual, "Belts - Inspect/Replace".



    Illustration 3g01408931

  1. Remove bolts (4). Remove guard assembly (5) .



    Illustration 4g01409255

  1. Disconnect harness assemblies (6). Remove bolt (8) and the plate in order to disconnect tube assemblies (7). Remove the O-ring seals.



    Illustration 5g01409400

  1. Remove bolts (9) and (11). Remove bracket (10) .



    Illustration 6g01409401

  1. Remove bolts (13). Remove refrigerant compressor (11) .

Installation Procedure

Note: Cleanliness is an important factor. Before you begin the installation procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.




    Illustration 7g01409401

  1. Position refrigerant compressor (12). Install bolts (13) .



    Illustration 8g01409400

  1. Install bracket (10). Install bolts (9) and (11) .



    Illustration 9g01409255

  1. Install the O-ring seals into tube assemblies (7). Connect tube assemblies (7). Position the plate and install bolt (8). Tighten bolt (8) to a torque of 22 ± 2 N·m (16 ± 2 lb ft).

  1. Connect harness assemblies (6) .



    Illustration 10g01408931

  1. Position guard assembly (5) and install bolts (4) .



    Illustration 11g01408925

  1. Install belt (3). Refer to Operation and Maintenance Manual, "Belts - Inspect/Replace".



    Illustration 12g01374496

  1. Install panel (2) and install bolts (1) .

  1. Charge 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, NENG2500, "Air Conditioning Tools" for the correct tools.

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