ENGINE OPERATION
59
2. After the engine has reached operating
temperature, all of the indicators (Figure 6, (5))
or (Figure 5, (5)) should be off. If any of the
indicators are on, shut down the engine and
have the necessary repairs performed.
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
Isuzu Distributor.
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
Isuzu Distributor.
5. 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.
6. Check the fuel level during operation. If the fuel
level runs low, stop the engine and refuel.
ADJUST ENGINE SPEED
NOTICE
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 the 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
four to five 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.
Use the engine speed control to adjust the engine
speed for the task that will be performed.
TNV_OperationManual_T4(under 19kW).book Page 59 Wednesday, June 17, 2015 11:23 AM
