SPRING 2255638 - Caterpillar

Remove Expansion Tank
1. Drain the coolant from the expansion tank.2. Disconnect two water lines (1) from the expansion tank.3. Remove the bolts that hold elbows (2) to the water temperature regulator housings. 4. Remove two bolts (3) and the four bolts that hold elbow (4) in position against the expansion tank. 5. Fasten two straps and a hoist to the expansion tank as shown. Remove two bolts (6) and expansion tank (5). The weight of the expansion tank is approximately 79 kg (175 lb.). 6. Remove six bolts (7) and neck assembly (8) from the expansion tank. 7. Remove the bolts and two supports (9) from the expansion tank.8. Disconnect water line (10) from the expansion tank.9. Remove the bolts that hold water temperature regulator housing (11) in position on the expansion tank. Remove housings (11), elbows (13) and tube (12) from the expansion tank as a unit.Install Expansion Tank
1. Install two supports (1) and the four bolts that hold the supports in position on the expansion tank.2. Make sure the gasket is in position between water temperature regulator housings (3) and the expansion tank. Install housings (3), elbows (4) and tube (5) as a unit on the expansion tank.3. Connect water line (2) to the expansion tank. 4. Install the gasket and neck assembly (7) on the expansion tank. Install six bolts (6) that hold it in place. 5. Fasten two straps and a hoist to the expansion tank as shown. Put expansion tank (8) in position on the engine. The weight of the expansion tank is approximately 79 kg (175 lb.). 6. Install two bolts (9) that hold the expansion tank in position on the engine. 7. Install two bolts (10) that go through supports (1) into the automatic timing advance cover.8. Make sure the gasket is in position between elbow (11) and the expansion tank. Install the four bolts that hold elbow (11) to the expansion tank. 9. Make sure the gaskets are in position between elbows (13) and the water temperature regulator housings. Connect elbows (13) to the water temperature regulator housings.10. Connect two water lines (12) to the expansion tank.11. Fill the cooling system with coolant to the correct level.