Priming The Fuel System - Yanmar 2TNV70 Operation Manual

BEFORE YOU OPERATE
Note that a typical fuel tank is shown. The fuel
tank on your equipment may be different.
1. Clean the area around the fuel cap
(Figure 1, (1)).
2. Remove the fuel cap (Figure 1, (1)) from the
fuel tank (Figure 1, (2)).
3. Observe the fuel level sight gauge
(Figure 1, (3)) and stop fueling when gauge
shows fuel tank is full. NEVER overfill the fuel
tank.
4. Replace the fuel cap (Figure 1, (1)) and hand
tighten. Over-tightening the fuel cap will
damage it.
(1)
(2)
Figure 1
36

Priming The Fuel System

(3)
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• 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 if an electric fuel pump
is installed:
1. Turn the key to the ON position for 10 to 15
A
DANGER
FIRE AND EXPLOSION HAZARD!
• Diesel fuel is extremely flammable and
explosive under certain conditions.
• If the unit has an electric fuel pump,
when you prime the fuel system, turn
the key switch to the ON position for
10 to 15 seconds to allow the electric
fuel pump to prime the system.
• If the unit has a mechanical fuel pump,
when you prime the fuel system,
operate the fuel priming lever of the
mechanical fuel pump several times
until the fuel filter cup is filled with
fuel.
• NEVER open the air vent valve while
the fuel system is being primed. The
fuel filter has an internal air bleed port.
• Failure to comply will result in death or
serious injury.
The fuel system needs to be primed
under certain conditions.
seconds. This will allow the electric fuel pump
to prime the fuel system.
TNV Operation Manual
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