NUT SPEED 5P5208 - Caterpillar

At operating temperature, the engine coolant is hot and under pressure. Steam can cause personal injury. Drain the coolant only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand. Remove the fill cap from the radiator slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to avoid personal injury.
1. Drain the coolant from the cooling system.
Typical Example. Bolts (6) can not be seen from this angle.2. Loosen the clamp and remove hose (4) from elbow (2).3. Remove the bolts and retainers that hold tube (1) to elbow (2).4. Disconnect any remaining hoses and sensors from elbow (2).5. Remove bolts (3) and elbow (2) from water pump housing (5). Check the condition of the O-ring seal beneath elbow (2). If the O-ring seal appears worn or damaged, use a new part for replacement.6. Fasten a hoist to water pump housing (5).7. Remove bolts (6) from the back side of water pump housing (5) and the front drive housing. Remove the water pump assembly. The weight of the water pump is assembly is 29 kg (64 lb).8. Check the condition of the O-ring seal located between water pump housing (5) and the front drive housing. If the O-ring seal appears worn or damaged, use a new part for replacement. The following steps are for installation of the water pump. Check the condition of all O-ring seals and components. If any seals or components are worn or damaged use new parts for replacement.9. Put clean engine oil on the O-ring seal that fits between water pump housing (5) and the front drive housing. Install the O-ring seal onto water pump housing (5).10. Fasten a hoist to water pump housing (5). Put the water pump assembly in position and install bolts (6) through the back of the front drive housing and into water pump housing (5).11. Put clean engine oil on the O-ring seal for tube (1).12. Put clean engine oil on the seal for elbow (2). Install the O-ring seal onto elbow (2).13. Put elbow (2) in position onto tube (1) and water pump housing (5). Install bolts (3).14. Install the retainers and bolts that hold tube (1) in position in elbow (2).15. Put hose (4) in position on elbow (4), and tighten the clamps that hold it in place.16. Connect the remaining hoses and sensors in their original positions to elbow (2).17. Fill the cooling system with coolant to the correct level. See the Operation & Maintenance module for further information.Disassemble Water Pump
Start By:a. remove water pump 1. Remove O-ring seal (4) from the back of housing assembly (3).2. Remove washer (1) that holds shaft assembly (2) in housing assembly (3).
Typical Example3. Remove cover (5) from housing assembly (3). Remove the O-ring seal from cover (5).
Typical Example4. Loosen bolt (7) holding impeller (6) to the pump shaft. Use tooling (A) to loosen impeller (6) from the end of the pump shaft. Remove tooling