3304B & 3306B MARINE ENGINES Caterpillar


Sea Water Pump

Usage:

Remove And Install Sea Water Pump

1. Drain the expansion tank.

2. Loosen clamp (1), and remove tube assembly (2). Loosen the clamp, and remove tube assembly (4).

3. Disconnect oil line (3) from the sea water pump.

4. Remove bolts (5) and the sea water pump. Remove the gasket.

5. Put the gasket and sea water pump in position, and install bolts (5) that hold it.

6. Connect oil line (3) to the sea water pump.

7. Install the gaskets and tube assemblies (2) and (4). Tighten the clamps that hold the hoses to the tube assemblies.

Disassemble Sea Water Pump

START BY:

a. remove sea water pump

1. Make a separation between the bearing housing (4) and pump body (3) after removing bolts (2).

2. Remove the shaft (5) and bearing from the housing after removing the snap ring (6).

3. Remove the snap ring (8), and remove the bearing (7). Remove the lip-type seal from the bearing housing.

4. Remove the end cover from the pump body. Remove the cam screw (1). Remove cam (9) from the pump body. Remove the impeller (10) and spline seal from the body. Remove the wear plate and the seal assembly from the pump body.

Assemble Sea Water Pump

1. Install bearing on shaft. Install the snap ring that holds it.

2. Install seal in bearing housing with tool (A). The lip of the seal must be toward the bearing.

3. Put the shaft and bearing in position in the housing, and install the snap ring (7).

4. Install the ceramic ring (11) and rubber seal (5) as follows:

a. Put water on the ceramic ring, rubber cup and bore of the pump body.

b. Install the rubber seal in the pump body.

c. Install ceramic ring (finger pressure only) inside of the rubber cap with the shiny surface toward the impeller end of the pump body.

5. Install wear plate (3) in body. Install cam (1) in body, and install the cam screw (2).

6. Install slinger (6) on shaft. Put the pump housing in position on the bearing housing, and install the bolts that hold them together.

7. Install remainder of seal assembly as follows:

a. Put water on inside of seal assembly (4) and pump shaft.

b. Push the seal assembly (finger pressure only) on the shaft until shiny surface of carbon seal (10) makes contact with shiny surface of carbon seal (10) makes contact with shiny surface of the ceramic ring (11).

8. Install the O-ring seal (9) on shaft.

9. Install the impeller in the pump with tool (B). Install cover (8) and the screws that hold it.

END BY:

a. install sea water pump

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