Engine Starting; Engine Stopping; Electrical System - Perkins 4008-30 Operation And Maintenance Manual

18
Safety Section

Engine Starting

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.
All protective guards and all protective covers must
be installed if the engine must be started to perform
service procedures.
Start the engine from the operators 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.
Ensure that the jacket water heater (if equipped) is
working correctly, check the water temperature
reading on the control panel of the original engine
manufacture.
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.
Note: The engine may be equipped with a device for
cold starting. If the engine will be operated in cold
conditions, then an extra cold starting aid may be
required. Normally, the engine will be equipped with
the correct type of starting aid for your region of
operation.

Engine Stopping

• Remove the load in increments.
• Open the circuit breaker.
• Allow the engine to run for five minutes to cool.
• Stop the engine.
• Ensure 24V is supplied to the dosing cabinet for at
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least 120 seconds after engine shutdown (engines
equipped with SCR systems only).
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.
Stop the engine if an overspeed condition occurs
during the initial start-up of a new engine or an
engine that has been overhauled. This may be
accomplished by shutting off the fuel supply to the
engine and/or shutting off the air supply to the
engine.
To stop an electronically controlled engine, cut the
power to the engine.

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 "−" jump-start 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 jump-start cable to the engine block.
Check the electrical wires daily for wires that are
loose or frayed. Tighten all loose electrical wires
before the engine is started. Repair all frayed
electrical wires before the engine is started. Refer to
the "Engine Starting" section of this Operation and
Maintenance Manual for specific starting instructions.
Grounding Practices
Proper grounding for the engine electrical system is
necessary for optimum engine performance and
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reliability. Improper grounding will result in
uncontrolled electrical circuit paths and in unreliable
electrical circuit paths.
Uncontrolled electrical circuit paths can result in
damage to main bearings, to crankshaft bearing
journal surfaces, and to aluminum components.
Engines that are installed without engine-to-frame
ground straps can be damaged by electrical
discharge.
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