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9-6. Connecting with External Fuel Tank
CAUTION : FIRE
Always make sure that the engine is stopped when working on the fuel line.
Always be sure to wipe up any spilled Diesel fuel.
After working on the piping, check that there is no Diesel fuel leakage.
Turn the 3way fuel valve lever to the "A" side.
1
( Position for using the internal tank )
Disconnect the R1/2" plugs from both the external
fuel intake and an external fuel return, and
2
connect the hoses from an external fuel tank, as
shown below.
Turn the 3way fuel valve lever to the "B" side.
3
( Position for using the external tank )
Bleed air from the external tank connecting
hose. Fuel can be supplied from the external
4
tank after completing the above procedures.
< NOTE >
If using a hose for the piping, use oil-resistant hose with
an internal diameter of 0.35 to 0.39 in ( 9 to 10 mm ).
Set the fuel level of the external fuel tank 0 to 10 ft ( 3 m )
above from the bottom of this generator. The fuel level of the external fuel tank being lower
than this generator will result in poor engine operation or shut-off.
Turn the 3way fuel valve lever to the "A" side in order to prevent fuel from flowing out from
the external tank fuel inlet/return.
Turn the lever completely as far as possible. If the lever is not completely pressed to either
side, it might not be possible to supply fuel causing
the engine to stop.
Set the supply side so that it is 0.6 to 0.8 in. ( 15 to
20 mm ). above the underside of the tank in order to
prevent foreign material or water from being
suctioned from inside the external fuel tank.
Set the external fuel tank return side at the same
height as the supply side in order to prevent poor
engine operation due to air mixed in with the fuel.
Refer to section "9-3. Procedures during Operation" for air bleeding.
Some air may remain in hoses or pipes immediately after connecting the external fuel tank
resulting in unstable engine speed and engine stoppage.
Do not leave the generator unattended for unmanned operation until you have confirmed
that the engine speed is stable.
3-Way valves
(＜A＞position)
37
3-Way valves
External
Fuel Intake
(Plug：R1/2")
External
Fuel Return
(Plug：R1/2")
3-Way valves
(＜B＞position)
External fuel tank
0.6～0.8 in.
(15～20mm)
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