VALVE GP-RELIEF 2042678 - Caterpillar

Remove Sea Water Pump
1. Remove the inlet and outlet water lines to pump (1).2. Remove the oil supply to pump (1). 3. Fasten a hoist to sea water pump (1) as shown. Remove the bolts and nuts, and remove the pump from housing assembly (2). The weight of pump (1) is 32 kg (71 lb.).4. Remove bolts (3) and the washers to remove housing assembly (2) from the front housing. If necessary, remove the bearing from the housing assembly. 5. Remove the bolts, and remove gear (4) from the accessory drive shaft.Install Sea Water Pump
1. Install gear (1) and the bolts to hold it to the accessory drive shaft. 2. If the bearing in housing assembly (2) was removed, lower the temperature of the bearing, and use tooling (A) to install the bearing to a depth of 1.5 0.5 mm (0.06 .02 in.) below the housing surface. Make sure the oil hole in the bearing is in alignment with the oil passage in the housing assembly. Check the bore in the bearing after assembly. The bore in the bearing must be 75.000 0.055 mm (2.9528 .0022 in.).3. Make sure the O-ring seals are in position on housing assembly (2), and put clean engine oil on the O-ring seals and the bearing. Install housing assembly (2) and the bolts and washers to hold it in the front housing. 4. Fasten a hoist to sea water pump (3), and install the pump in the housing assembly. Install the bolts and nuts to hold the pump to the housing assembly.5. Install the oil supply line to the pump.6. Install the inlet and outlet water lines to the pump.Disassemble Sea Water Pump
Start By:a. remove sea water pump 1. Loosen bolt (3) approximately 3.0 mm (0.12 in.), and use tooling (A) to pull gear (2) from the pump shaft. Remove tooling (A), bolt (3), the washer and gear (2) from the end of the pump shaft.2. Remove clamp (1) from the pump. 3. Remove end body (6) from the drive body. Remove port plate (4) from the end body.4. Be careful not to damage the threads in the nut or shaft when removing the cotter pin. Be sure all of the cotter pin is completely removed before removing the nut. Remove the cotter pin. Remove nut (5) and the washer from the end of the pump shaft. 5. Use tooling (B) to remove impeller (7) from the pump shaft. Remove the shims from the pump shaft. 6. Remove O-ring seal (8) and ring (10) from the drive body.7. Remove washer (9) and key (11) from the pump shaft.8. Remove port plate (12) from the drive body. 9. Remove nuts (14) that hold drive body (13) to bearing housing (15).
Do not let bearing housing (15) fall when it is removed from drive body (13).
10. Use a press to remove bearing housing (15) and pump shaft (16) from drive body (13). Remove seal (17). Make a replacement of both seal (17)