Milton CAT 345D L - Manual (Page 5)

Pilot System. The pilot pump is
independent from the main pumps
and controls the front linkage, swing
and travel operations. The pilot control
valve operation is proportional to control
lever movement, delivering outstanding
controllability.
Component Layout. The component
location and hydraulic system design
provide the highest level of system
efficiency. The main pumps, control
valve and hydraulic tank are located
as close to each other as possible.
This design makes it possible to
use shorter tubes and lines between
components, reducing friction losses
and pressure drops.
Heavy Lift Standard. The operator can
select the heavy lift mode at the push
of a button to boost lifting capability
and provide improved controllability
of heavy loads.
Hydraulic Cross-Sensing System.
The hydraulic cross sensing system
utilizes each of two hydraulic pumps
to 100 percent of engine power under
all operating conditions. This improves
productivity with faster implement
speeds and quicker, stronger pivot turns.
Boom and Stick Regeneration Circuits.
A hydraulically operated stick
regeneration circuit saves energy and
improves multi-function performance
during the stick-in operation. New on
the 345D L, the boom regeneration
circuit is operated electrically, and this
system is managed by the machine ECM.
The system improves cycle times and fuel
efficiency, increasing your productivity
and reducing operating costs. Boom and Swing Priority. The hydraulic
system on the 345D L provides automatic
priority function for boom-up and swing
operations eliminating the need for
work mode buttons. When the boom
or swing lever is activated, the system
automatically assigns priority based
on operator demand. Hydraulic Cylinder Snubbers.
Snubbers are located at the rod-end
of the boom cylinders and both ends
of the stick cylinders to cushion shocks
while reducing sound levels and
extending component life.
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Hydraulics
Cat ® hydraulics deliver power and precise control to keep material moving.