
58
KENR6933
Troubleshooting Section
Recommended Actions
Diagnostic Codes
1.
Use the electronic service tool to check for any
diagnostic codes that may be related to high fuel
consumption.
Misreading of Fuel Level
1.
Monitor the fuel consumption over a period of 50
engine hours. If the fuel consumption is excessive,
perform the following procedure.
Fuel Quality
1.
The quality of the fuel that is used in the engine
will affect the rate of fuel consumption. Refer to
“General Fuel Information” in the Operation and
Maintenance Manual, “Re
fi
ll Capacities”.
2.
If the fuel is not of an acceptable quality, drain
the fuel system and replace the fuel
fi
lters. Re
fi
ll
the fuel system with fuel of an acceptable quality.
Refer to the applicable sections in the Operation
and Maintenance Manual.
3.
If the fuel is of an acceptable quality, refer to
“Quality of Oil”.
Quality of Oil
1.
The nominal viscosity of the lubricating oil that
is used in the engine will affect the rate of fuel
consumption. The viscosity of lubricating oil is
de
fi
ned by the SAE grade of the lubricating oil.
The grade of the lubricating oil must be correct
for the ambient conditions. Lubricating oil that is
intended for use in high ambient temperatures
will have a negative effect upon the rate of fuel
consumption in cold ambient temperatures. Refer
to “Engine Oil” in the Operation and Maintenance
Manual, “Re
fi
ll Capacities”.
2.
The actual viscosity of the lubricating oil that is
used in the engine will change throughout the
service life of the oil. Lubricating oil that is heavily
contaminated will have a negative effect upon the
rate of fuel consumption.
3.
If the oil is not of an acceptable quality or if the
oil has exceeded the service life, drain the oil
system and replace the oil
fi
lters. Re
fi
ll the oil
system with oil of an acceptable quality. Refer
to the applicable sections in the Operation and
Maintenance Manual.
4.
If the oil is of an acceptable quality, refer to
“Operation in Cold Conditions”.
Low Engine Temperature
1.
The operating temperature of the engine will affect
the rate of fuel consumption. Operation of the
engine below the correct temperature will increase
fuel consumption. Failure of the water temperature
regulator can prevent the engine from operating at
the correct temperature.
2.
If the engine operating temperature is low, check
the operation of the water temperature regulator. If
the water temperature regulator does not operate
correctly, a new water temperature regulator must
be installed. Refer to Disassembly and Assembly,
“Water Temperature Regulator - Remove and
Install”.
Prolonged Operation at Idle Speed
Prolonged operation of the engine at idle speed
increases fuel consumption.
When the engine is operated at idle speed, the fuel
that is consumed provides no useful work. Prolonged
operation at idle speed will cause a measurable
deterioration in the overall fuel consumption of the
engine.
Operation of the engine for long periods at idle
speed will cause a deterioration of the internal
components of the engine. A deterioration of the
internal components of the engine will increase fuel
consumption.
Engine Operating Speed
The operating speed of the engine will affect the rate
of fuel consumption.
High engine speed will increase fuel consumption.
At high engine speeds, internal power losses in
the engine increase and more power is required to
drive the alternator and the fan. These power losses
increase fuel consumption.
Lugging down the engine to a low engine speed will
increase fuel consumption. At low engine speeds, the
combustion ef
fi
ciency of the engine is reduced. This
will require more fuel to be used.
Air Inlet and Exhaust System
Leakage of gas or an increased restriction in either
the air intake or the exhaust system can reduce
the
fl
ow of combustion gas through the engine. A
change in the
fl
ow of combustion air into the engine
adversely affects combustion ef
fi
ciency and the rate
of fuel consumption.
Содержание 1106C Genset
Страница 1: ...May 2007 Troubleshooting 1106C Genset PK Engine KENR6933 00 ...
Страница 19: ...KENR6933 19 Troubleshooting Section g01178875 Illustration 6 ...
Страница 119: ...KENR6933 119 Troubleshooting Section g01244183 Illustration 31 Schematic of the bypass harness connector ...
Страница 186: ...186 KENR6933 Index Section ...
Страница 187: ...KENR6933 187 Index Section ...
Страница 188: ...Copyright 2007 Perkins Engines Company Limited All Rights Reserved Printed in U K ...