Yanmar 2TNV70, Operation Manual

Page: 75 / 142

ENGINE OPERATION
TNV Operation Manual 57
3. Check for any fuel, engine coolant or engine
oil leaks. If any leaks are found shut down the
engine and have the necessary repairs
performed.
4. 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. Contact your
authorized Yanmar industrial engine dealer or
distributor.
5. 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.
6. Check the fuel level during operation. If the
fuel level runs low, stop the engine and refuel.
ADJUST ENGINE SPEED
Use the engine speed control to adjust the engine
speed for the task that will be performed.
A
WARNING
0000008en
HIGH PRESSURE HAZARD!
• Avoid skin contact with 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.
CAUTION
0000011en
New Engine Break In:
• On the initial engine start-up, allow the
engine to idle for approximately 15
minutes while you check for proper
engine oil pressure, diesel fuel leaks,
engine oil leaks, coolant leaks, and for
proper operation of the indicators
and / or gauges.
• During the first hour of operation, vary
the engine speed and load on the
engine. Short periods of maximum
engine speed and load are desirable.
Avoid prolonged operation at
minimum or maximum engine speeds
and loads for the next 4 to 5 hours.
• During the break-in period, carefully
observe the engine oil pressure and
engine temperature.
• During the break-in period, check the
engine oil and coolant levels
frequently.