SUPPLEMENT FOR 3116 & 3126 MARINE ENGINE Caterpillar

1. Drain the coolant from the engine into a suitable container for storage or disposal.

2. Remove hose clamp (1). Disconnect the hose from the fitting.

3. Remove four bolts (3).

4. Loosen the hose clamp under expansion tank (2) and remove the hose from the expansion tank. Remove the expansion tank.

NOTE: The following steps are for the installation of the expansion tank.

5. Install the hose to the bottom of expansion tank (2), then position and tighten hose clamp.

6. Position expansion tank (2), then install four bolts (3).

7. Connect the hose end to the fitting. Tighten hose clamp (1).

8. Fill the cooling system with coolant to the correct level. See the Operation & Maintenance Manual.