Service Manual

I I
The Basic Principle of Hydraulics
Hydraulics refer to the use of liquids to transmit
energy. In hydrostatic systems, mechanical
energy from an external source is converted into
hydraulic pressure. The pressure is then
transferred through a circuit and re-converted
into mechanical energy.
In our products, the mechanical energy is
supplied by an engine and the liquid used to
transfer energy is oil.
Benefits of Hydraulics
Let's look at some of the benefits of using
hydraulics to transmit power as compared to a
mechanical system.
Hydrostatic transmissions provide for infinite
variation of output speed.
A mechanical
transmission is limited by the number of gear
ratios it has.
around corners.
A mechanical system would
require a complex belt, chain or gear system
to accomplish this.
Hydraulic hoses or lines can be routed
The same fluid that transfers the energy also
provides lubrication for moving parts.
There is a greater need for lubrication
between moving parts under heavy load.
With hydraulics, as the load increases,
so
does the operating pressure. This
automatically provides maximum lubrication
during periods of higher loads.
Productivity Series
4