GENERATOR OPERATION
YDG Operation Manual
75
1. Check for any fuel or engine oil leaks. If any
leaks are found, shut down the engine and have
the necessary repairs performed.
2. Check for abnormal sounds or vibration. If the
abnormal sounds or vibration cannot be
resolved, shut down the engine and have the
necessary repairs performed. Contact your
authorized Yanmar industrial engine dealer or
distributor.
3. 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 is being over-fueled. If
either of these conditions persists, contact your
authorized Yanmar industrial engine dealer or
distributor.
4. Check the fuel level during operation. If the fuel
level runs low, stop the engine and refuel. See
Filling The Fuel Tank on page 46.
5. If the oil pressure falls below the specified
minimum, the low oil pressure shutdown will
automatically stop the engine. Check the oil
level and refill. See Adding Engine Oil on
page 49.
Low Load Operation
Avoid low load operation as much as possible.
Always operate at 1/4 load or greater when
possible.
Operating is at 1/4 load or less for extended periods
will cause, if it continues for a long time, carbon to
mix with unburned fuel, clogging the head of the
injection nozzle and piston head and fouling the
muffler. Carbon buildup can be recognized by
bluish white smoke being emitted from the engine.
To avoid this, run the engine at 3/4 load or greater
for 30 minutes or longer every 50 hours.
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.
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