YOKE 6D7506 - Caterpillar

Remove And Install Water Pump
1. Drain the coolant from the cooling system. 3. Remove the bolts and retainers from both ends of tube (1) and remove tube (1).4. Remove the bolts and remove damper guard (2). 4. Remove eight bolts (3) and ring (4). 5. Remove three bolts (6) and remove housing (5). 6. Remove four bolts (7) securing the water pump to the water line adapter. 5. Fasten a hoist to water pump (8). Remove four bolts (9) remove and water pump (8). The weight of water pump (8) is 27 kg (60 lb). Pull the water pump straight out of the front housing to disengage the pump drive shaft. Installation of the water pump is accomplished in the exact reverse order from removal.6. Install a new O-ring seal on the rear side of the water pump and lubricate with clean engine oil. Make sure that the gasket is in position on the water line adapter.7. Make sure when installing the water pump that the splines in the pump shaft are correctly engaged with the pump drive splines.8. If necessary, make replacements to the O-ring seals on each end of the pipe (2) and put clean engine oil on the seals.Disassemble Water Pump
Start By:a. remove water pump 1. Remove elbow (1) from housing assembly (2). Remove the O-ring seal from elbow (1). 2. Remove O-ring seal (5) from the back of housing assembly (2).3. Remove washer (4) that holds shaft assembly (3) in housing assembly (2). 4. Remove cover (6) from housing assembly (2) by removing three bolts. Remove the O-ring seal from cover (6). 5. Loosen nut (8) and the washer that hold impeller (7) to the pump shaft. Use tooling (A) to loosen impeller (7) from the end of the pump shaft. Remove tooling (A), nut (8), the washer and impeller (7) from the pump shaft and housing assembly (2). 6. Remove spring (10) from seal assembly (9) and shaft assembly (3).7. Use a soft faced hammer and push shaft assembly (3) out of seal assembly (9) and housing assembly (2). Remove seal assembly (9) from housing assembly (2). 8. Remove ceramic seal (11) from the rubber ring. Remove the rubber ring from housing assembly (2). 9. Remove seal (12) from the back of housing assembly (2).Assemble Water Pump
1. If necessary, make a replacement of the two filters in the pump housing at location (13).2. If necessary, make a replacement of plug (14) and the seal.3. Use tooling (A) to install the seal in the housing assembly. Make sure the lip of the seal is toward the outside as shown. Put clean engine oil on the lip of the seal. 4. Install shaft assembly (3) in housing assembly (2). Install washer (4) and the bolts to hold shaft assembly (3) in position. Install O-ring seal (5) on the back of housing assembly (2).
Clean water only is permitted for use as a lubricant for assembly. Do not damage or put hands on the wear surface of