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• 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.

• Ensure that all clips on the high-pressure fuel lines

are in place. Do not operate the engine with clips
that are damaged, missing, or loose.

• Do not attach any other item to the high-pressure

fuel lines.

• Loosened high-pressure fuel lines must be

replaced. Also removed high-pressure fuel lines
must be replaced. Refer to Disassembly and
assembly manual, “Fuel Injection Lines - Install”.

NOTICE

The low-pressure fuel system can be pressurized for
a time period after the engine has stopped operating.
The operating pressure of the low-pressure fuel sys-
tem can be 500 kPa (73 psi). The secondary fuel fil-
ters should be drained before any maintenance of the
low-pressure fuel system is carried out.

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Before Starting Engine

Before the initial start-up of an engine that is new,
serviced or repaired, make provision to shut the
engine off, in order to stop an overspeed. This may
be accomplished by shutting off the air and/or fuel
supply to the engine.

Overspeed shutdown should occur automatically for
engines that are controlled electronically. If automatic
shutdown does not occur, press the emergency stop
button in order to cut the fuel and/or air to the engine.

Inspect the engine for potential hazards.

Before starting the engine, ensure that no one is on,
underneath, or close to the engine. Ensure that the
area is free of personnel.

If equipped, ensure that the lighting system for the
engine is suitable for the conditions. Ensure that all
lights work correctly, if equipped.

All protective guards and all protective covers must
be installed if the engine must be started in order to
perform service procedures. To help prevent an
accident that is caused by parts in rotation, work
around the parts carefully.

Do not bypass the automatic shutoff circuits. Do not
disable the automatic shutoff circuits. The circuits are

provided in order to help prevent personal injury. The
circuits are also provided in order to help prevent
engine damage.

See the Service Manual for repairs and for
adjustments.

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Engine Starting

Do not use aerosol types of starting aids such as
ether. Such use could result in an explosion and
personal injury.

If a warning tag is attached to the engine start switch
or to the controls DO NOT start the engine or move
the controls. Consult with the person that attached
the warning tag before the engine is started.

Start the engine from the operator's compartment or
from the engine start switch.

Always start the engine according to the procedure
that is described in the Operation and Maintenance
Manual, “Engine Starting” topic in the Operation
Section. Knowing the correct procedure will help to
prevent major damage to the engine components.
Knowing the procedure will also help to prevent
personal injury.

To ensure that the jacket water heater (if equipped)
and/or the lube oil heater (if equipped) is working
correctly, check the water temperature gauge and/or
the oil temperature gauge during the heater
operation.

Engine exhaust contains products of combustion
which can be harmful to your health. Always start the
engine and operate the engine in a well ventilated
area. If the engine is started in an enclosed area, vent
the engine exhaust to the outside.

SEBU9066

Safety Section

Before Starting Engine