SUPPLEMENT FOR 793B TRUCK ENGINE Caterpillar

1. Turn off the fuel supply to the fuel transfer pump.

2. Disconnect fuel supply hose (2) from the fuel transfer pump.

3. Disconnect two fuel lines (3).

4. Remove the bolts that hold fuel transfer pump (1) to the oil pump, and remove the fuel transfer pump.

5. Remove the O-ring seal from the fuel transfer pump.

NOTE: The following steps are for installation of the fuel transfer pump.

6. Install the O-ring seal on the front of the fuel transfer pump. Put clean oil on the O-ring seal and the drive coupling spline.

7. Put fuel transfer pump (1) in position on the oil pump, and install the four bolts that hold it.

8. Connect two fuel lines (3).

9. Connect fuel supply hose (2).

10. Turn on the fuel supply to the fuel transfer pump.