3054, 3054B and 3056 Marine Engines Caterpillar

The sea water strainer must be clean in order to allow proper engine cooling. Check the sea water strainer for plugging. Inspect the sea water strainer more frequently if the vessel is being operated in water which is shallow or dirty. The sea water strainer protects the aftercooler from debris. The sea water strainer will catch pieces of the rubber impeller from the raw water pump due to a failure from debris. The sea water strainer is installed on turbocharged engines only.

Drain the Sea Water Cooling System

Turbocharged Engines

1. Close the valve for the sea water.

Show/hide table



Illustration 1	g00751785

2. Disconnect both hoses (2) from the sea water pump (1) .

Show/hide table



Illustration 2	g00751786

3. Remove the drain plug (3) from the front cover of the heat exchanger (4). Ensure that the drain hole is not plugged.

4. Use the turning tool on the front of the crankshaft in order to rotate the engine. This will ensure that all of the water has drained from the sea water pump.

Clean the Sea Water Strainer

Turbocharged Engines

1. Ensure that the sea water cooling system is drained. Refer to "Drain the Sea Water Cooling System" for the procedure.

Show/hide table



Illustration 3	g00752040

2. Remove the hose clamp (2) for the sea water strainer. Remove the sea water strainer (1) and clean the screen. Use clean water to clean the screen. Remove any dirt and debris.

3. Install the sea water strainer (1). Install the hose and the hose clamp (2). Fill the sea water strainer and the suction line for the auxiliary water pump with water.

Filling the Sea Water Cooling System

Turbocharged Engines

Show/hide table



Illustration 4	g00751785

1. Connect the hoses (2) at the sea water pump (1) .

Show/hide table



Illustration 5	g00751786

2. Install the drain plug (3) in the front cover of the heat exchanger (4) .

3. Open the valve for the sea water.

Sea Water Cooling System for Naturally Aspirated Engines

Naturally aspirated engines do not have a sea water strainer. However, if the sea water cooling system needs to be drained, then use the following procedure:

Drain

1. Close the valve for the sea water.

Show/hide table



Illustration 6	g00751785

2. Disconnect both hoses (2) from the sea water pump (1) .

Show/hide table



Illustration 7	g00751788

3. Remove hose clamp (3) and hose (4) for the marine gear oil cooler.

4. Use the turning tool on the front of the crankshaft to rotate the engine. This will ensure that all of the water has drained from the sea water pump.

Fill

Show/hide table



Illustration 8	g00751785

1. Connect the hoses (2) at the sea water pump (1) .

Show/hide table



Illustration 9	g00751788

2. Install hose (4) for the marine gear oil cooler and hose clamp (3) .

3. Open the valve for the sea water.