7
Connection to Hydraulic Power Sources
The rock drill can be connected to various hydraulic power sources, such as excava-
tors, trucks, loaders, tractors etc., and of course HYCON powerpacks, the design of
which ensures your new HYCON rock drill the absolute best working conditions.
It is important that the rock drill is not subjected to an oil flow and a working pres-
sure beyond its design capability.
Check the oil flow and the working pressure by means of test equipment. The test
equipment should comprise a pressure gauge, a flow meter and a valve for adjust-
ment of pressure.
Make sure that:
the oil supply is not too high
the working pressure is not too high
the return pressure is not too high
the pressure relief valve is not set higher than 150 bar
the internal diameter of the hoses is sufficient (min. ½”)
all couplings are clean
the power source is equipped with an oil filter of min. 25 Micron
Hoses with too small internal diameter and/or defect couplings cause the rock drill to
work with incorrect working pressure.
Your dealer can help you check this.
If the output of the power source is too high:
the power source must be adjusted to correct output
or you can choose to mount a HYCON oil flow divider to protect the rock drill
against overload
or you can choose one of our HYCON powerpacks. Your dealer can guide you
in choosing the right powerpack.
In case of doubt, please contact your dealer or HYCON A/S.
