Komatsu put a high priority on the safety of the machine operator while
designing the WA1200-3 Mountain Mover.
Large Cab Design With Safety Protection
The oversized cab is designed with the operator’s safety in
mind. It is equipped with both Roll Over Protection (ROPS)
and Falling Object Protection (FOPS). There are doors to
the operator’s left and right. A right-side emergency ladder
is included for exiting the machine.
Emergency Steering
In emergency situations when the steering pump is disabled
an emergency steering pump is used to provide hydraulic
flow. This pump is transmission-driven, utilizing the machine’s
traveling speed in emergency situations to safely steer
the machine.
Safe Maintenance Accessibility
For safe maintenance operations, all maintenance points
are equipped with a step and safety handrail.
Low Maintenance Safe Brake System
The WA1200-3 utilizes sealed wet disc type service
brakes with an internal wet disc parking brake. Service
brakes are part of an independent dual circuit system.
The parking brake is a spring-actuated and hydraulically-
released design. When brake oil pressure is too low, the
parking brake is automatically engaged to prevent
accidents and promote safe operation.
Safe Boarding and Exiting Machine
In addition to the boarding stairs, a rear step with safety
handrail is provided. The step width, clearance, and the
step angle have been designed for easy climbing both up
and down. A step light provides light for night boarding.
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WA1200-3
WHEEL LOADER
Ultra Wide Base Tire Option
65/65-57 62PR ultra wide base tires have been developed exclusively for the
WA1200-3. With the reduction of ground pressure, increase of rubber material,
and larger air volume, incidents of premature tire wear and tire cutting have been
reduced. The result of this tire technology along with the Tire Saver feature is
longer tire life and reduced vehicle-operating costs.
Vehicle Health Monitoring System
(VHMS)
The VHMS controller functions as a
central information point for all system
components. Maintenance intervals of all
components are displayed as well as
gauge-type information such as tem-
peratures, engine speed, and pressures.
The on-line availability of this information
helps to make the process of maintaining
and troubleshooting the machine much more precise and less time consuming.
Extended Hydraulic and Brake Oil Change Intervals
Hydraulic and brake oil change intervals have been extended to 2,000 hours
of operation with the use of hybrid oil filters and an oversized hydraulic tank.
Oil Sealed Loader Linkage Pins
Sealed and lubricated loader linkage
pins are used which only require
lubrication at 2,000 hour intervals.
Inherent to the Komatsu design are features which help
mine operators reduce machine operational costs.
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Tire Saver
Komatsu answers the call to help
control tire costs with its Tire Saver
features. The Komatsu Tire Saver
feature senses wheel slippage elec-
tronically and sends a signal to the
modulation controller, which in turn
signals the torque converter modulator
and the input horsepower is controlled.
The rim pull of the tire is controlled,
tire slip is stopped, and the tire
life is extended.
