BOLT- 4754282 - Caterpillar

The radiator, radiator guard and fan assembly are removed for better photo illustration.1. Drain the coolant from the cooling system. 2. Loosen the tension on belt tightener spring (1). Remove fan drive vee belts (2). 3. Remove four bolts (4). Remove elbow (3).4. Disconnect heater hose (5). 5. Remove five bolts (6). Remove water pump cover (7). 6. Remove water pump adapter (8). Remove the two O-ring seals from the adapter. 7. Loosen the bolt that holds the impeller on the water pump shaft approximately 1/8 in. (3.2 mm). Install tooling (A) and loosen impeller (9) from the shaft.8. Remove tooling (A). Remove the bolt and the impeller from the water pump shaft. 9. Remove seal assembly (11). Remove ring (10) and the seal.Install Water Pump Seal
1. Check seals and O-rings for damage. If damaged, use new parts for replacement. Use clean water only as a lubricant for assembly of parts. Put seal ring (2) in seal (1) and install the assembly in the housing with the shiny face toward the seal assembly. Use finger pressure only. 2. Install spring (4) on carbon seal (3) and install the assembly on the water pump shaft with the carbon seal against the seal ring. Use finger pressure only. 3. Install impeller (5) on the water pump shaft. Install the washer and bolt that holds the impeller in position. Tighten the bolt to a torque of 28 2 lb.ft. (39 3 N m). 4. Install O-ring seals (6) and (8) in the adapter. Put adapter (7) in position on the water pump. Make sure notch in adapter is in alignment with the dowel in the water pump housing. 5. Install cover (9) on the water pump. Install the five bolts that hold the water pump cover to the water pump. 6. Install elbow (10) to the water pump. Install the four bolts that hold the elbow in position. Connect heater hose (11) to the water pump.7. Install the fan drive vee belts.8. Fill the cooling system with coolant to the correct level. See Lubrication and Maintenance Guide for belt tension and correct level of coolant.