Priming The Fuel System - Yanmar 3TNV88F Service Manual

GENERAL SERVICE INFORMATION

Priming the Fuel System

The fuel system needs to be primed under certain
conditions:
• Before starting the engine for the first time.
• After running out of fuel and fuel has been added
to the fuel tank.
• After fuel system maintenance such as changing
the fuel filter and draining the fuel filter/water
separator, or replacing a fuel system component.
To prime the fuel system:
1. Turn the key to the ON position for 10 - 15
seconds. This will allow the electric fuel pump
to prime the fuel system.
2. Never use the starter motor to crank the engine
in order to prime the fuel system. This may
cause the starter motor to overheat and
damage the coils, pinion and/or ring gear.
4-16 3TNV88F Service Manual
Diesel Fuel