Komatsu D475A-5E0, Operation & Maintenance Manual

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SAFETY
PRECAUTIONS FOR OPERATION
PRECAUTIONS WHEN TRAVELING
Never turn the starting switch key to OFF position when the machine is traveling. If the engine stops when the
machine is traveling, it may become impossible to operate the steering, and this may cause serious personal
injury or death. If the engine stops, depress the brake pedal immediately to stop the machine.
When traveling or performing operations, always keep a safe distance from people, structures, or other machines
to avoid coming into contact with them.
When traveling on the level ground, keep the work equipment
approximately 40 to 50 cm {16 to 20 in} above the ground.
Otherwise, the work equipment may contact to the ground and
the machine may be turned over.
Avoid traveling over obstacles when possible. If the machine
has to travel over an obstacle, keep the work equipment close
to the ground and travel at low speed. There is more danger of
the machine tipping over to the left or right than tipping over to
the front or rear, so do not travel over obstacles which make the
machine tilt strongly to the left or right sides.
When traveling on rough ground, travel at low speed and do not
operate the steering suddenly. There is danger that the machine
may turn over. The work equipment may hit the ground surface
and cause the machine to lose its balance, or may damage the
machine or structures in the area.
When passing over bridges or structures, check first that the structure is strong enough to support the weight of
the machine.
When operating in tunnels, under bridges, under electric wires, or other places where the height is limited, operate
slowly and be extremely careful not to let the machine or work equipment hit anything.
TRAVELING ON SLOPES
To prevent the machine from tipping over or slipping to the side, always observe the following.
Keep the work equipment approximately 20 to 30 cm {8 to 12 in}
above the ground. In case of emergency, lower the work
equipment to the ground immediately to help stop the machine.
Always travel straight up or down a slope. Traveling at an angle
or across the slope is extremely dangerous.
Do not turn on slopes or travel across slopes. Always go down
to a flat place to change the position of the machine, then travel
on to the slope again.
Travel on grass, fallen leaves, or wet steel plates with low
speed. Even with slight slopes there is a hazard that the
machine may slip.
When traveling downhill, never shift gear or place the
transmission at NEUTRAL. It is dangerous not to use the
braking force of the engine. Always place the transmission in a
low gear before starting to travel downhill.
Apply the brake and use the engine as a brake, if necessary.
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