140M and 150 Motor Graders Engine Supplement Water Pump - Remove and Install Caterpillar


Water Pump - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Start By:

  1. Remove the refrigerant compressor. Refer to Disassembly and Assembly, "Refrigerant Compressor - Remove and Install".

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


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.



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! ------

At operating temperature, the engine coolant is hot and under pressure.

Steam can cause personal injury.

Check the coolant level only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand.

Remove the fill cap slowly to relieve pressure.

Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to prevent personal injury.


  1. Drain the engine coolant into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Extended Life Coolant - Change".


    Illustration 1g01413409

  2. Remove belt tensioner (1) and remove refrigerant compressor support (2).

  3. Disconnect hoses (3) and (4).


    Illustration 2g01413415

  4. Disconnect hose (5) and disconnect hose assembly (6).


    Illustration 3g01413418

  5. Disconnect clamp assembly (7).

  6. Remove four bolts (8) and remove water pump (9).


    Illustration 4g01413446

  7. Remove O-ring seals (10).

Installation Procedure

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.



    Illustration 5g01413446

  1. Install new O-ring seals (10).


    Illustration 6g01413418

  2. Position water pump (9) and install four bolts (8).

  3. Tighten clamp assembly (7) to a torque of 10 ± 1 N·m (88 ± 9 lb in).


    Illustration 7g01413415

  4. Connect hose (5) and connect hose assembly (6).


    Illustration 8g01413409

  5. Connect hoses (3) and (4).

  6. Install refrigerant compressor support (2).

  7. Install belt tensioner (1).

  8. Fill the engine with coolant. Refer to Operation and Maintenance Manual, "Cooling System Extended Life Coolant - Change".

End By:

  1. Install the refrigerant compressor. Refer to Disassembly and Assembly, "Refrigerant Compressor - Remove and Install".

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