Perkins 1204E-E44TA Operation And Maintenance Manual page 14

14
Safety Section
High Pressure Fuel Lines
Illustration 14
(1) High-pressure line
(2) High-pressure line
(3) High-pressure line
The high-pressure fuel lines are the fuel lines that
are between the high-pressure fuel pump and the
high-pressure fuel manifold and the fuel lines that are
between the fuel manifold and cylinder head. These
fuel lines are different from fuel lines on other fuel
systems.
These differences are because of the following items:
•
The high-pressure fuel lines are constantly charged
with high pressure.
•
The internal pressures of the high-pressure fuel
lines are higher than other types of fuel system.
•
The high-pressure fuel lines are formed to shape
and then strengthened by a special process.
Do not step on the high-pressure fuel lines. Do not
deflect the high-pressure fuel lines. Do not bend or
strike the high-pressure fuel lines. Deformation or
damage of the high-pressure fuel lines may cause a
point of weakness and potential failure.
Do not check the high-pressure fuel lines with the
engine or the starting motor in operation. After the
engine has stopped wait 10 minutes in order to allow
the fuel pressure to be purged from the high-pressure
fuel lines. before any service or repair is performed.
(4) High-pressure line
(5) High-pressure fuel manifold (rail)
(6) High-pressure line
Do not loosen the high-pressure fuel lines in order
to remove air from the fuel system. This procedure
is not required.
Visually inspect the high-pressure fuel lines before
the engine is started. This inspection should be each
day.
If you inspect the engine in operation, always use
the proper inspection procedure in order to avoid
a fluid penetration hazard. Refer to Operation and
Maintenance Manual, "General hazard Information".
•
Inspect the high-pressure fuel lines for damage,
deformation, a nick, a cut, a crease, or a dent.
•
Do not operate the engine with a fuel leak. If there
is a leak, do not tighten the connection in order
to stop the leak. The connection must only be
tightened to the recommended torque. Refer to
Disassembly and Assembly, "Fuel injection lines -
Remove and Fuel injection lines - Install".
• If the high-pressure fuel lines are torqued correctly,
and the high-pressure fuel lines are leaking the
high-pressure fuel lines must be replaced.
SEBU8605-01
(7) Fuel transfer line that is high pressure
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