The hydraulic power packs type HC... are completed with
a tank, a gear pump, a DC electric motor and some special hydraulic elements.
These power packs can be used for driving hydraulic motor of the vehicles.
There are no special requirements regarding the location
of the tank assembly to the vehicles, because of its cover, which protects
it againts external contaminans.
In hydraulic power packs type HC... there are some
special hydraulic elements used, such as poppet valves, which provide
an excelent oil-tightness.
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The construction of the hydraulic power packs type HC...
makes it possible to connect elements without pipelines. Due to this,
the power packs type HC... are compact and easily operated.
The energy supply of the electric motor is provided
by storage batery. It is not necessary for the internal combustion engine
to function during hydraulic system operation, which leads to a lower
level of fuel consumption, as well as less contamination of the environment.
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Recomendations for making of a suitable choice:
The selection of the main elements of the power packs
type HC... should be done after careful acquintance with the diagrams
and catalague data.
It is very important to observe recommendated operation
modes S1, S2 and S3 for DC electric motors.
At assembly of the power packs type HC... in machines
and equipment, that are exposed to vibration, so damping elements have
to be placed in the points of fixing.
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The capacity of the tank should secure minimum operating
time of the gear pump for 1 minute.
After initial start-up of the power pack type HC...
it is necessary to top up the oil in the tank to the indicated level.
The normal functioning of the power packs type HC... requires a hydraulic
oil with viscosity of 10-60 mm²/s, depending on ambient temperature
and working liquid in operation mode. The optimum viscosity of the operating
liguid is 30-50 mm²/s.
On the suction pipeline of the power packs type HC...
a filter with degree of filtration of 63 micron is situated.
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