3406 DIESEL TRUCK ENGINE Caterpillar

Fuel Transfer Pump (Later)

Usage:

Disassemble Fuel Transfer Pump (Later)

start by:

a) remove fuel transfer pump

1. Remove bolts (1). Remove cover (2) from the fuel transfer pump.

2. Remove bolt (3). Remove gasket, spring and plunger from under bolt.

3. Remove gear (4).

4. Remove shaft assembly (5).

5. Remove O-ring seal (7) from body assembly.

6. Install a 5/16"-18 NC forged eyebolt (6) in the plug. Remove plug (8) and O-ring seal. Remove the O-ring seal from the plug.

7. Remove valve assembly (9).

8. Remove two lip seals (10) from the body assembly.

9. Remove two bearings (11) from the body assembly with tooling (A).

Assemble Fuel Transfer Pump (Later)

1. Install bearings in body (1) with tooling (A). Install bearing on gear end of body to a depth of .03 ± .02 in. (0.76 ± 0.51 mm) below the surface of the body. Install the bearing on the opposite end of the body even with the body surface.

2. Put 4H5363 Sealant on the outside diameters of the seals. Install the lip seals in the body assembly with tooling (A). Install the first seal with lip toward bearing. Install the lip seal to a depth of .406 ± .010 (10.31 ± 0.25 mm). Install the second seal with lip away from bearing. Make sure the second lip seal is even with the surface of the body assembly.

3. Install the valve assembly in the body assembly with tooling (A) to a depth of .57 ± .02 in. (14.5 ± 0.5 mm).

4. Install O-ring seal (3) on the plug. Install a 5/16"-18 NC forged eyebolt (2) in the plug. Put a small amount of clean diesel fuel on the O-ring seal and install plug (4) in the body assembly. Make sure plug is even with the surface of the body.

5. Install O-ring seal on the body assembly.

6. Put a small amount of clean diesel fuel on the lip seals. Put tool (B) in position on shaft assembly. Install shaft assembly (5) in the body assembly.