High Production And Low Fuel Consumption; Working Mode Selection - Komatsu PC750 Brochure

P
P
RODUCTIVITY
RODUCTIVITY
F
F
EATURES
EATURES

High Production and Low Fuel Consumption

Engine
The PC750-7 gets its exceptional power and work capacity
from its Komatsu SAA6D140E-3 engine. Output is
338 kW 454 HP providing more hydraulic power.
In addition, the fuel consumption is reduced by 12%
when using Economy Mode.
Large Digging Force
Thanks to the high engine output and an excellent hydraulic
system, this machine demonstrates powerful digging force.
Large Drawbar Pull and Steering Force
Since the machine has a large drawbar pull and a high steer-
ing force, it demonstrates excellent mobility even when it is
being used on inclined sites. In addition, this machine is
equipped with an automatic travel speed shifting system,
which makes automatic Hi/Lo shifts.
Excellent Swing Performance
Twin-swing motor system of PC750-7 provides excellent
swing performance on slope.
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Excellent Machine Stability
The rear center of gravity and the 9.8 tonne
10.8 U.S. ton counterweight provides the stability and lifting
capacity needed for maximum productivity.
Large Bucket Capacity
Large capacity bucket has large and shallow contour offers
easy loading.
PC750-7: 2.8 - 3.4 m 3 3.66 - 4.45 yd 3
PC750SE-7: 4.0 - 4.5 m 5.23 - 5.89 yd
3 3
tank capacity (2750
ltr 726.6 U.S. gal)
Photo may include optional equipment.

Working Mode Selection

Hydraulics
Unique two-pump system assures smooth compound movement of the
work equipment. OLSS (Open Center Load Sensing System) controls all
pumps for efficient engine power use. This system also reduces hydraulic
loss during operation.
Active and Economy mode
The PC750-7 excavator is equipped with two working modes. Each mode
is designed to match engine speed, pump speed, and system pressure to
the current application, giving the operator flexibility to match equipment
performance to the job at hand.
Working Mode Application Advantage
● Maximum production/power
Active
A
● Fast cycle times
Mode
● Good cycle times
Economy
E
● Good fuel economy
Mode
Heavy Lift Mode
Gives the operator 10% more lifting force on the boom
when needed for handling rock or heavy lifting applications.
Two Settings for the Boom
Smooth mode provides easy operation for gathering blasted rock and
scraping operations. When maximum digging force is needed, switch to
power mode for more effective excavating.
Boom raise
Power
Smooth
mode
mode
Swing Priority Setting
The swing priority setting allows the
Selection
operator to use the same easy motion for
180˚ loading as 90˚ loading operations.
ON
By altering the oil flow, this setting allows
OFF
you to select either boom or swing as the
priority for increased production.
Shockless Boom Control
The PC750-7 features a shockless
valve (double-check slow return valve)
that automatically reduces the amount
Extend and
of vibration present when operating the
retract
boom. Operator fatigue is reduced
(which can improve safety and
productivity), and spillage caused by
vibration is prevented.
PC750-7
HYDRAULIC EXCAVATOR
Multi-Function
Color Monitor
Two Working Modes
Heavy Lift Mode
Swing Priority Mode
EMMS (Equipment Management
Monitoring System)
1. Monitor Function
Controller monitors engine oil
level, coolant temperature, bat-
tery charge air-filter restriction,
etc.
The controller finds any abnor-
mality and displays it on the
LCD.
2. Maintenance Monitor Function
informs replacement time of oil
and filters on LCD when the
Result
replacement interval is reached.
Oil flow to the swing motor is increased.
3. Trouble Data Memory Function
180˚loading operations are most efficient.
stores machine abnormalities
Oil flow to the boom is increased.
(error codes) in the monitor for
90˚loading operations are most efficient.
effective trouble shooting.
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