11
Comfortable
Operator’s Seat
An air suspension operator’s
seat is supplied as standard
equipment. With a retractable
seat belt, the six-way adjust-
able seat provides a comfortable
working position for any sized
operator.
Hi-Cab
The operator’s cab has been
designed exclusively for the WA1200-3
to provide extra space in the operator’s work
area for both increased comfort and enhanced productivity.
This cab is equipped with state-of-the-art features including
Advanced Joystick Steering System (AJSS) and the Color
Graphics Console (CGC) all in easy reach of the seated
operator. The obstruction-free front, side, and rear
windows offer full panoramic view of working area.
Overhead Panel
Controls for the AM/FM cassette
radio, window wiper and washer,
cab lights, and air conditioner are
all neatly arranged in an overhead
console easily within the seated operator’s reach.
Special
Viscous Mounts
Cab is mounted using
viscous dampening
hydro-mounts for low
vibration and noise
(interior noise level
73 dB(A)).
Cab Air
Conditioning
Large capacity air
conditioning system
combined with carefully placed vents provide optimum
cool air flow. Defroster vents are designed to keep the
rear window frost-free during cold weather operation.
With a simple touch
of his hand the
operator can easily
select from the five
operating modes
and four fan speeds
on the overhead
control panel.
Floor
Rear
Frame
Rubber
Silicon Oil
Damper plate
WA1200-3
WHEEL LOADER
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O
PERATOR
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OMPARTMENT
O
PERATOR
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OMPARTMENT
Operator’s Cab Interior
The operator’s environment employs a simple open design
concept. The front instrument panel and door panels are
molded plastic along with the left and right console boxes.
There are no obstacles protruding from these panels leading
to an open, uncluttered feeling, and making cleaning the
cab interior a simple matter of wiping down these panels
with a wet cloth.
Advanced Joystick Steering System (AJSS)
The most suitable steering
system for wheel loader
operation should be both
smooth and effortless to
operate. With this in mind,
using its hydraulic and
electronic control technology,
Komatsu has created AJSS.
This system allows the
machine operator to
articulate the machine
proportionally with the
angle of the control joystick. He can actually develop a
“feel” for the steering articulation and thus increase
his operation efficiency.
Transmission forward/reverse and shift control switches
are mounted on the joysticks.
Automatic Transmission Allows Load and
Carry Operations Without Shifting Gears
This system automatically selects the optimum gear
in accordance with the conditions, travel speed, engine
speed, etc. The transmission is controlled by the Komatsu
Electronic Control Modulation Valve (ECMV) system.
The operation is made much easier as the operator no
longer has to shift from gear to gear while carrying loads
during the work cycle.
Engine Speed
Controls
RPM Set System
Engine rpm can be easily
preset using a push-
button switch.
Electronic-type Throttle Pedal and
Electronically Governed Engine
The use of an electronic control governor coupled with an
electronic foot pedal enable smooth engine speeds to be
achieved with minimum foot pressure.
Main Monitor EDIMOS II
(Electronic Display Monitoring System)
This simple functional monitor panel is well-received by
operators worldwide. It displays on-line travel speed, gear
position, and other important travel-related information.
It also has diagnostic functions.
Multi Monitor
On the right of the panel is the color graphic system. Through
this system remote boom positioning is set.
Gauges displayed on the monitor include: engine water
temperature, oil pressure, fuel level, and payload meter.
Maintenance diagnostic information is also available
on the monitor.
Designed with the operator in mind, the operator’s compartment promotes comfort
and efficient operation for both experienced and inexperienced operators alike.
