I NEED TO KNOW HOW TO REMOVE THE COOLING FAN PUMP ON A KOMATSU WA380-5 PLEASE. A MANUAL MAYBE?

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KOMATSU D65EX 12 D65PX 12 DOZER OPERATION MAINTENANCE MANUAL Download...

5.7L Engines

1. Before servicing the vehicle, refer to the Precautions section.
2. Disconnect negative battery cable.
3. Drain the cooling system.
4. Disconnect negative battery cable.
5. Remove the upper radiator hose.
6. Disconnect cooling fan electrical connector.
7. Remove cooling fan mounting bolts.
8. Remove the radiator cooling fan assembly from vehicle.
9. Remove the radiator fan assembly.
10. Remove accessory drive belt.
11. Remove thermostat.
    NOTE The water pump mounting bolts are different lengths. Note the location of the water pump mounting bolts.
    

To install:

1. Install water pump and mounting bolts. Tighten mounting bolts to 20 ft. lbs. (28 Nm).
2. Make sure double ended bolt is in the proper location. Tighten double ended bolt to 20 ft. lbs. (28 Nm).
3. Position the radiator cooling fan assembly in vehicle.
4. Install cooling fan mounting bolts. Tighten to 50 inch lbs. (6 Nm)
5. Connect the cooling fan electrical connector.
6. Install the upper radiator hose.
7. Install thermostat.
8. Install the accessory drive belt.
9. Install the radiator fan assembly.
10. Connect negative battery cable.
11. Fill the cooling system.
12. Pressure test cooling system.

Download Komatsu CK30-1 Compact Track Loader Workshop Service Repair Manual Download A30001 and up

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Komatsu D20PL,PLL,AG-7,D20P,PG-7A,D21A,S,AG,QG-7,D21PG-7A Dozer Bulldozer Service Repair Manual
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contact a service dealer spares department for the manual or cd
bet your life it won't be cheap but is probably the only place you will get one

The text below is from the GM Service manual 4.3L V6 Engine
Water Pump Replacement (4.3L)
Removal Procedure
Drain the cooling system. Refer to Draining and Filling Cooling System .
Loosen the water pump pulley bolts.
Remove the cooling fan and clutch assembly.

Tools Required
J 46406 Fan Clutch Wrench

Removal Procedure
Remove the upper fan shroud.
Remove the fan clutch from the water pump in a counterclockwise direction using the J 46406 .
Remove the fan clutch assembly.
Remove the drive belt. Refer to Drive Belt Replacement Remove the water pump pulley mounting bolts.
Remove the water pump pulley.
Remove the radiator outlet hose clamp from the water pump.
Remove radiator outlet hose from the water pump.
Remove the water pump mounting bolts.
Remove the water pump from the engine.
Remove the water pump gaskets.
Clean the water pump gasket mating surfaces.
Installation Procedure
Install the water pump gaskets.
Install the water pump to the engine.
Apply a sealer (GM P/N 12346004) to the bolt threads.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Install the water pump mounting bolts.
Tighten
Tighten the mounting bolts to 41 N·m (30 lb ft).
Install the radiator outlet hose to the water pump.
Install the water pump pulley.
Install the water pump pulley bolts.
Tighten
Tighten the water pump pulley bolts to 25 N·m (18 lb ft).
Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.3L.
Install the fan clutch assembly.
Fill the radiator cooling system. Refer to Draining and Filling Cooling System .
Inspect the cooling system for leaks.

This is for an 82 Inline 6 Aldata doesnt go back that far, if you need further info Hit Me Back

1. Disconnect battery ground cable.
2. Drain cooling system.
3. Disconnect radiator and heater hoses from water pump, Fig. 21.
4. Remove drive belts.
5. Remove fan shroud and fan.
6. Remove water pump attaching bolts, then the water pump and gasket.
7. Reverse procedure to install.

Drain the cooling system & remove cooling fan. Loosen the pump pulley bolts & remove aux. drive belt. Remove the pulley bolts/nuts & pulley. Remove pump bolts. If pump is tight, install 2 M6 bolts into jacking holes and push pump out. Save the seal O-ring for new pump. Reverse for install.

If you have any questions feel free to ask. Let me know if you dont get diagrams(happens sometimes)

Reverse rotation water pump—2.5L and 4.0L engines

1. Before servicing the vehicle, refer to the precautions in the beginning of this manual.
2. Drain the cooling system.
3. Remove or disconnect the following: NOTESome 4.0L engines are equipped with a fan clutch that threads Directly on to the water pump shaft. This fan clutch is equipped with right-hand threads. NOTEDo not store the fan clutch assembly horizontally, silicone may leak into the bearing grease and cause contamination. NOTEOne of the water pump bolts is longer than the others. Note the location for reassembly.
   • Negative battery cable
   • Electric cooling fan connector
   • Accessory drive belt
   • Engine cooling fan and pulley
   • Water pump pulley
   • Power steering pump
   • Lower radiator hose from the water pump
   • Heater hose
   • Water pump and discard the gasket

To install:

1. Clean the mating surfaces of all gasket material.
2. Install or connect the following:
   • Water pump using a new gasket. Torque the bolts to 17 ft. lbs. (23 Nm).
   • Heater hose
   • Lower radiator hose
   • Water pump pulley. Torque the bolts to 20 ft. lbs. (27 Nm).
   • Power steering pump
   • Engine cooling fan and shroud. Torque the bolts to 31 inch lbs. (3 Nm).
   • Accessory drive belt
   • Electric cooling fan connector
   • Negative battery cable
3. Fill and bleed the cooling system.
4. Start the engine, check for leaks and repair if necessary.

3.7L Engine

1. Before servicing the vehicle, refer to the precautions in the beginning of this manual.
2. Drain the cooling system.
3. Remove or disconnect the following:
   • Negative battery cable
   • Fan and clutch assembly from the pump
   • Fan shroud and fan assembly. If you’re reusing the fan clutch, keep it upright to avoid silicone fluid loss!
   • Lower hose
   • Water pump (8 bolts)
4. Installation is the reverse of removal. Tighten the bolts, in sequence, to 40 ft. lbs. (54 Nm). Water pump tightening sequence—3.7L