Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-11
SY115C9/135C/155H Crawler Hydraulic Excavator
●
Flush the fuel tank and the fuel system
in case of any impurities found in the fuel
tank.
●
The air in fuel path must be eliminated in
case that the engine runs out of fuel or the
fi
lter cartridge has been replaced.
●
Always use the type of fuel speci
fi
ed in the
"Maintenance Section."
●
The fuel can freeze below the speci-
fi
ed temperature (especially lower than
-15°C (5°F)).
●
When the fuel is used above the speci-
fied temperature, its viscosity and out-
put power will decrease .
●
Pay special attention to prevention of
impurities when storing or refilling the
fuel.
Note:
Always use diesel oil as the fuel.
To ensure favorable consumption and exhaust
of the fuel, the engine installed to your ma-
chine uses high-pressure oil injection unit with
mechanical control. The unit contains high-
precision components that require high-quality
lubrication. Therefore, the use of low-viscosity
fuel with low lubricating capability will consid-
erably reduce the service life of the unit.
5.2.1.3
Coolant
●
The coolant is also an important fluid
against corrosion and freezing.
Anti-freezing coolant is also necessary in
regions where freezing prevention is un-
necessary.
Sany machines are prefilled with TEEC-
L35 antifreeze, which has excellent perfor-
mance in anticorrosion, anti-freezing and
cooling, and can last for 1 year or 2000
