Precautions When Operating; Prohibited Operations; Method Of Using Brakes; Traveling On Snow-Covered Or Frozen Surfaces - Komatsu D155A-6 Operation & Maintenance Manual

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SAFETY

PRECAUTIONS WHEN OPERATING

Be careful not to approach too close to the edge of cliffs. When making embankments or landfills, or when
dropping soil over a cliff, dump one pile, then use the next pile of soil to push the first pile.
The load suddenly becomes lighter when the soil is pushed over a cliff or when the machine reaches the top of
a slope. When this happens, there is danger that the travel speed will suddenly increase, so be sure to reduce
the speed.
If the machine moves with only either side of the blade loaded, its tail may swing. Take care.

PROHIBITED OPERATIONS

To make it easier to escape if there is any problem, set the tracks at right angles to the road shoulder or cliff with
the sprocket at the rear when carrying out operations.
When using the machine, to prevent personal injury caused by damage to the work equipment or by the machine
overturning due to overloading, do not exceed the permitted performance of the machine or the maximum
permitted load for the structure of the machine.

METHOD OF USING BRAKES

When the machine is traveling, do not rest your foot on the brake pedal. If you travel with your foot resting on the
pedal, the brake will always be applied, and this will cause the brakes to overheat and fail.
Do not depress the brake pedal repeatedly if not necessary.
When traveling downhill, use the braking force of the engine.

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.
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.
PRECAUTIONS FOR OPERATION
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