Engine Stopping; Electrical System - Perkins 1104D Operation And Maintenance Manual

18
Safety Section

Engine Stopping

Note: The engine is equipped with a device for cold
starting. If the engine will be operated in very 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.
These engines are equipped with a glow plug starting
aid in each individual cylinder that heats the intake air
in order to improve starting.
Engine Stopping
Stop the engine according to the procedure in the
Operation and Maintenance Manual, "Engine
Stopping (Operation Section)" in order to avoid
overheating of the engine and accelerated wear of
the engine components.
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.
To stop an electronically controlled engine, cut the
power to the engine and/or shutting off the air supply
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 "−" 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
i02234873
Illustration 15
Typical example
(1) Starting motor to engine block
(2) Ground to starting motor
(3) Ground to battery
i02234878
Illustration 16
Typical example
(4) Ground to engine
(5) Ground to battery
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.
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