Prohibited Operations; Traveling On Snow-Covered Or Frozen Surfaces - Komatsu WA380-6 Operation & Maintenance Manual

PRECAUTIONS FOR OPERATION

PROHIBITED OPERATIONS

If the machine rolls over or falls, or the ground at the working point collapses, it may lead to serious personal injury
or death. Always observe the following precautions.
Do not excavate the work face under an overhangs. There is
danger that the work face will collapse.
When digging, never thrust the bucket into a load at an angle.
This will bring an excessive load to bear on the machine and will
reduce the service life of the machine.
It is dangerous to apply drive force when excavating a rock face.
In addition, an excessive load will be brought to bear on the
machine and this will cause damage to the machine.
Never carry out digging operations on a downhill slope. An
excessive load will be brought to bear on the machine and this
will cause damage to the machine.
Do not use the bucket or lift arm for crane operations. There is
danger that the machine will tip over and that the load will fall.
Do not pass the bucket over the head of other workers or over
the operator's seat of dump trucks or other hauling equipment.
The load may spill or the bucket may hit the dump truck and
cause serious personal injury or death.

TRAVELING ON SNOW-COVERED OR FROZEN SURFACES

Snow-covered or frozen surfaces are slippery, so be extremely careful when traveling or operating the machine,
and do not operate the levers suddenly. Even a slight slope may cause the machine to slip, so be particularly
careful when working on slopes.
With frozen ground surfaces, the ground becomes soft when the temperature rises, and this may cause the
machine to tip over or make it impossible for the machine to escape.
When traveling on snow-covered roads, always fit tire chains.
If the machine enters deep snow, there is a hazard that it may tip over or become buried in the snow. Be careful
not to leave the road shoulder or to get trapped in a snow drift.
When clearing snow, the road shoulder and objects placed beside the road are buried in the snow and cannot be
seen. There is a hazard of the machine tipping over or hitting covered objects, so always carry out operations
carefully.
When traveling on snow-covered slopes, never apply the foot brake suddenly. Reduce the speed and use the
engine as a brake while applying the foot brake intermittently (depress the brake intermittently several times). If
necessary, lower the work equipment to the ground to stop the machine.
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SAFETY