In addition to main hydraulics, they also deliver flow
for operation of the secondary hydraulic
systems
which controls jack gripping mechanisms.From this fleet, we are able to select power
pack
and jack combinations to meet all functional
requirements of synchronized lifting by
multiples
jacks at appropriate lifting speeds. Monitoring and Control Systems
All power packs have direct, panel mounted,
monitoring and control systems. It would be typical that an operator might control a
multi-jack lift or lower by means of two
functional
control levers on the power pack with the option of
opening or closing hydraulic
flow to all or any of the
jacks at any stage by means of line valves. Maximum pumping pressure, hence jack lifting force,
can be pre-set or altered at will by
pressure control
valves on the panel. All pumping pressures to each jack, and each jack's
secondary hydraulics pressure, are
displayed on
panel gauges. Further electronic monitoring can display number of
lift strokes completed and individual
stroke positions
on each jack. Similar control and monitoring facilities can also
be positioned remote from the power
pack to fully
computerized systems, including automatic lifting
and lowering capabilities. |