SEAL 5D6767 - Caterpillar

REMOVE AFTERCOOLER
start by:a) remove air intake shutoff (3508 and 3512)1. Drain the coolant from the cooling system.2. Remove all of the bolts that hold elbow (2) in position. Remove elbow (2) from adapter (1) and the engine.3. Disconnect tube assembly (3) from adapter (1) and the regulator housing. Remove the tube assembly from the engine.4. Remove the two bolts and remove adapter (1) from the front of the aftercooler housings.5. Remove sleeve (5) from adapter (4) and remove adapter (4) from the front of the aftercooler housings.6. Remove the two bolts and remove elbow (6) from the rear of the aftercooler housings. 7. Remove sleeve (8) from adapter (7) and remove adapter (7) from the rear of the aftercooler housings.8. Fasten a hoist to aftercooler housings (9) with tooling (A). Remove the bolts and remove aftercooler housings (9) from the engine. The weight of the 3512 aftercooler housings is 70 kg (155 lb). The weight of the 3508 aftercooler housings is 28 kg (62 lb).
CAUTION Be careful when the aftercooler core is removed because the lower rear part of the core is held in position by a connector and O-ring seals.
9. Remove the bolts and fasten a hoist to strap (10). Remove aftercooler core (11) from the engine. The weight of the 3512 core (11) is 52 kg (115 lb). The weight of the 3508 core is 29 kg (65 lb).10. Remove O-ring seals (12) from each end of the aftercooler core. Remove ring (13) to remove connector (14) from the aftercooler core. Remove the O-ring seals from the connector. INSTALL AFTERCOOLER
Clean and inspect all of the O-ring seals and gaskets. Make a replacement of any worn or damaged seals and gaskets.1. Install the O-ring seals on connector (2) and put clean engine oil on the seals. Put connector (2) in position and install ring (1) to hold the connector in the aftercooler core.2. Install O-ring seals (3) on the ends of the aftercooler core and put clean engine oil on the seals.3. Fasten a hoist to aftercooler core (4) as shown and put it in position on the engine. Make sure connector (2) is correctly engaged with adapter (5) in the cylinder block. Install the bolts to hold the aftercooler core in position.4. If the aftercooler housings were taken apart and new gaskets installed, cut the gaskets even with the bottom of the housings.5. Fasten a hoist to aftercooler housings (6) with tooling (A). Put housings (6) and the gasket in position and install the bolts to hold the housing in position. Tighten the bolts to a torque of 55 7 N m (40 5 lb.ft.). 6. Put clean engine oil on the O-ring seal and install adapter (7) in the rear of the aftercooler housings.7. Install sleeve (8) in adapter (7) and over the end of the aftercooler core.8. Put clean water on the O-ring seal and put elbow (9) and the gasket in position in the rear of the aftercooler