Yanmar L48N Operation Manual page 54

ENGINE OPERATION
1. After the engine has reached operating
temperature, all of the indicators (if equipped)
should be Off. If any of the indicators are On,
shut down the engine and have the necessary
repairs performed.
A
WARNING
HIGH PRESSURE HAZARD!
• Avoid skin contact with the high
pressure diesel fuel spray caused by a
fuel system leak such as a broken fuel
injection line. High pressure fuel can
penetrate your skin and result in
serious injury. If you are exposed to
high pressure fuel spray, obtain
prompt medical treatment.
• NEVER check for a fuel leak with your
hands. ALWAYS use a piece of wood
or cardboard. Have your authorized
Yanmar industrial engine dealer or
distributor repair the damage.
• Failure to comply could result in death
or serious injury.
2. Check for any fuel or engine oil leaks. If any
leaks are found shut down the engine and
have the necessary repairs performed.
3. Check for abnormal sounds or vibration. In
some applications the engine and its
mounting may start to resonate and cause
unusual vibrations at certain engine speeds.
Avoid running the engine at these speeds. If
the abnormal sounds or vibration cannot be
resolved, shut down the engine and have the
necessary repairs performed.
42
4. Check for white or black smoke from the
exhaust system. A small amount of white
exhaust smoke is normal on start-up of a cold
engine. Black exhaust smoke could mean the
engine is overloaded or being over-fueled. If
either of these conditions persists, contact
your authorized Yanmar industrial engine
dealer or distributor.
5. Check the fuel level during operation. If the
fuel level runs low, stop the engine and refuel.
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L-N Operation Manual