SANY LATIN AMERICA
1-17
SY195/205/215/225C9 Crawler Hydraulic Excavator
Introduction
Shop Manual - June 2013
4. Do not let any dirt or dust get in during
refi lling operations
Be careful not to let any dirt or dust get
in when refilling with hydraulic oil. Always
keep the oil filler and the area around it
clean, and also use clean pumps and oil
containers. If an oil cleaning device is
used, it is possible to
fi
lter out the dirt that
has collected during storage, so this is an
even more effective method.
ZX215-1000025
5. Change hydraulic oil when the tempera-
ture is high
When hydraulic oil or other oil is warm, it
flows easily. In addition, the sludge can
also be drained out easily from the circuit
together with the oil, so it is best to change
the oil when it is still warm. When changing
the oil, as much as possible of the old
hydraulic oil must be drained out. (Drain
the oil from the hydraulic tank; also drain
the oil from the filter and from the drain
plug in the circuit.) If any old oil is left, the
contaminants and sludge in it will mix with
the new oil and will shorten the life of the
hydraulic oil.
6. Flushing operations
After disassembling and assembling the
equipment, or changing the oil, use
fl
ush-
ing oil to remove the contaminants, sludge,
and old oil from the hydraulic circuit.
Normally, flushing is carried out twice:
primary
fl
ushing is carried out with
fl
ushing
oil, and secondary flushing is carried out
with the speci
fi
ed hydraulic oil.
ZX215-1000026
Flushing oil
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