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


Refrigerant Condenser - Remove and Install
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140M and 150 Motor Graders Engine Supplement [KENR6423]
OPERATOR STATION
AIR CONDITIONER GP
140M and 150 Motor Graders Engine Supplement Refrigerant Condenser - Remove and Install
140M and 150 Motor Graders Engine Supplement Refrigerant Compressor - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
311-1362  Vacuum Cap 

Start By:

  1. Remove the engine enclosure. Refer to Disassembly and Assembly, "Engine Enclosure (Hood) - Remove".

Note: Put identification marks on all hoses, on all hose assemblies, on all harness assemblies, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.


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 Operation and Maintenance Manual, "Capacities (Refill)" for the correct charge that is used in the machine that is being serviced. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the procedure. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the tools.


    Illustration 1g01374019

  2. Install Tooling (A) onto the hydraulic tank . Attach an air supply hose onto Tooling (A). Apply 138 kPa (20 psi) of air. This procedure will pull a vacuum on the hydraulic system.


    Illustration 2g01408687


    Illustration 3g01408696

  3. Remove bolts (1). Disconnect hose assemblies (2). Disconnect hose assemblies (3).

  4. Remove bolts (5). Remove refrigerant condenser (4).

Installation Procedure

Table 2
Required Tools 
Tool  Part Number  Part Description  Qty 
311-1362  Vacuum Transducer 

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


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.




    Illustration 4g01408696

  1. Position refrigerant condenser (4). Install bolts (5).


    Illustration 5g01408687

  2. Check condition of the O-ring seals. If necessary, replace the O-ring seals. Connect hose assembly (3).

  3. Check condition of the O-ring seals. If necessary, replace the O-ring seals. Connect hose assemblies (2). Install bolts (1).


    Illustration 6g01374019

  4. Remove Tooling (A).

  5. 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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