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Engine Starting
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.
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.
If there is a possibility that unburned gas remains in
the exhaust system, refer to the purge procedure in
this Operation and Maintenance Manual, “Engine
Starting” topic in the Operation Section.
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) is
working properly, check the water temperature and
the oil temperature during 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.
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Engine Stopping
To avoid overheating of the engine and accelerated
wear of the engine components, stop the engine
according to the instructions in this Operation and
Maintenance Manual, “Engine Stopping” .
Use the Emergency Stop Button (if equipped) ONLY
in an emergency situation. Do not use the
Emergency Stop Button for normal engine stopping.
After an emergency stop, DO NOT start the engine
until the problem that caused the emergency stop
has been corrected.
On the initial start-up of a new engine or an engine
that has been serviced, make provisions to stop the
engine if an overspeed occurs. This procedure may
be accomplished by shutting off the fuel supply to the
engine, or shutting off the ignition system.
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Electrical System
Never disconnect any charging unit circuit or battery
circuit cable from the battery when the charging unit
is operating. A spark can cause the combustible
gases that are produced by some batteries to ignite.
To help prevent sparks from igniting combustible
gases that are produced by some batteries, the
negative
“
−
”
cable should be connected last from the
external power source to the negative
“
−
”
terminal of
the starting motor. If the starting motor is not
equipped with a negative
“
−
”
terminal, connect the
cable to the engine block.
Check the electrical wires daily for wires that are
loose or frayed. Tighten all loose electrical
connections before the engine is started. Repair all
frayed electrical wires before the engine is started.
See the Operation and Maintenance Manual for
specific starting instructions.
Grounding Practices
Note:
All ground lines must return to the battery
ground.
Illustration 19
g01217202
Typical example
(1) Starting motor to ground
(2) Battery negative to engine
Correct grounding for the engine electrical system is
necessary for optimum engine performance and
reliability. Incorrect grounding will result in
uncontrolled electrical circuit paths and in unreliable
electrical circuit paths.
SEBU8430-02
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