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OPERATOR’S COMPARTMENT
D85ESS
CRAWLER DOZER
D85ESS-2A C RAWLER D OZER
Electronic monitoring
system (optional)
An electronic monitoring
system prevents minor
problems from developing
into major ones. All meters
and gauges are controlled by
a microcomputer, which
provides a wide indication
range for an easier, more precise reading.
Hexagonal pressurized cab (optional)
Air filters and a higher internal air pressure combine to
prevent external dust from entering the cab. In addition, the
cab’s hexagonal design provides excellent front, side, and
rear visibility. The viscous damper cab suspension softens
shocks for operator comfort and extends component life.
Low-noise design
For smoother riding comfort, power train components and
hydraulic control valves are mounted to the frame with
rubber pads to soften vibration and shut out noise.
Since the D85ESS employs joysticks, the walk-through
operator compartment is uncluttered for smooth entry
and exit. An adjustable seat with backrest is standard
equipment.
Three-stage height adjustable armrests
Three-stage height adjustable armrests and relocated fuel
control lever provide
comfortable operation and
increased leg space.
Easy-to-operate work equipment control lever
With the Closed-center Load Sensing (CLSS) hydraulic
system, blade lever stroke is directly proportional with blade
speed, regardless of the load and travel speed. This results
in superb, fine controllability.
Benefits of CLSS
● More precise and responsive operation due to the
pressure compensation valve.
● Reduced fuel consumption by discharging only the
required amount of oil from the pump.
● The work equipment moves smoothly for operations such
as side-cutting even when priority is given to steering.
All steering, direction, and speed changes are made by a left-hand single joystick control. If the operator wants to
move the machine forward and to the left, he simply moves the joystick forward and to the left. If he desires a gear change,
he merely twists his wrist. The machine responds to the movement of the lever providing the operator with the feeling of
natural control with Komatsu’s joystick.
CLSS for D85ESS-2A
Steering
functions
Forward and
reverse
Right and left
steering
First, to second,
to third shifting
Left Hand
Right Hand
Blade
functions
Lifting and
lowering
Tilting
RELIABILITY FEATURES
E
ASY
M
AINTENANCE
Field-proven engine
Powerful S6D125E-2 diesel engine provides a massive
output of
149 kW 200 HP. The engine power is transmitted
smoothly to the final drives via a high-efficiency torque
converter.
Modular designed power train units
The modular design allows easy removal and installation of
any individual unit for shorter downtime.
Flat bottom frame
A flat bottom frame, the monocoque track frames and
forward-mounted pivot shafts provide good maneuverability
in muddy terrain by preventing mud from building up under
the frame.
Sturdy design
Because fewer components mean greater reliability, we’ve
designed a simple hull frame made of a thick, single plate.
Tr ack frames have a large-section construction for maximum
rigidity. Even the box-section construction of the blade back
beam is reinforced, all with durability in mind.
Wet, multiple-disc brakes
Eliminate brake-band
adjustments for
maintenance-free operation.
Coolant reservoir
A radiator coolant reservoir makes it easier to
check the coolant level and eliminates
frequent refilling.
Oil pressure check ports
(optional)
Oil pressure check ports for the
power train are centralized on the
right hand side of the operator
platform for easy access.
Gull-wing engine side covers (optional)
A gas-spring cylinder opens the gull-wing engine side covers
widely, allowing the engine and auxiliary components to be
easily checked.
Tough undercarriage
Large-diameter bushings, increased track link heights, and
improved oil-seals help to increase undercarriage durability.
Serviceability has also been improved with the addition of
remote greasing of the equalizer bar center pin.
Low drive and long track undercarriage
Komatsu’s design is extraordinarily tough and offers excellent
grading ability and stability.
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