Chapter 1
BASIC SAFETY PRECAUTIONS
1-7
Properly maintain the air
cleaner and pre-cleaner
The major cause of abnormal wear on engine parts is
dust from intake air. Worn parts produce many prob-
lems such as an increase of oil consumption,
decrease of output, and starting difficulties. For effec-
tive removal of dust from intake air, maintain the air
cleaner or pre-cleaner according to the following
instructions.
• Do not maintain the air cleaner/pre-cleaner while the
engine is operating. Operating the engine without
the air cleaner/pre-cleaner allows foreign matters to
enter the turbocharger and could result in serious
damage.
• Remove the air cleaner/pre-cleaner slowly to pre-
vent dust accumulated on the element from falling
off. After removing the air cleaner or pre-cleaner,
immediately cover the opening (inlet port of air
cleaner; port in body for pre-cleaner) with plastic
sheet or similar means to prevent dust from entering
the engine.
• Air cleaners equipped with a dust indicator will issue
an alarm if the element gets clogged. Service the
cleaner as soon as possible if an alarm is issued.
Observe safety rules at work
site
Observe the safety rules established at your work-
place when operating and maintaining the engine.
Do not operate the engine if you are feeling ill, inform
your supervisor of your condition.
Operation of the engine with reduced awareness may
cause improper operation that could result in acci-
dents.
When working in a team fo two or more people, use
specified hand signals to communicate among work-
ers.
Work clothing and protective
gear
Wear a hardhat, face shield, safety shoes, dust mask,
gloves and other protective gear as needed.
When handling compressed air, wear safety goggles,
a hardhat, gloves and other necessary protective
gear. Works without wearing proper protective gear
could result in serious injuries.
Use of tools optimum for each
work
Always keep in mind to select most appropriate tools
for the work to be performed and use them correctly. If
tools are damaged, replace them with new tools.
Do not operate the starter for a
prolonged time
Do not operate the starter for more than 10 seconds at
a time even if the engine does not start. Wait for at
least 30 seconds before next engine cranking.
Continuous operation of the starter will drain the bat-
tery power and cause seizing of the starter.
Do not turn off the battery
switch during operation
If the battery switch is turned OFF when the engine is
running, not only various meters will stop working but
also the alternator may have its diode and transistor
deteriorated.
Cautionary instructions for
transporting the engine
When transporting the engine on a truck, consider the
engine weight, width and height to ensure safety.
Abide by road traffic law, road vehicles act, vehicle
restriction ordinance and other pertinent laws.
Do not touch high-pressure
injection fuel
If fuel leaks or sprays out from the high pressure injec-
tion pipe, do not touch the fuel.
Fuel in the fuel injection pipes is under high pressure
and if the fuel contact your skin, it goes into deep tis-
sues and may result in gangrene.
