Komatsu PC490-11, Installation And Instruction Manual

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slopes. If the machine is operated with the auto-deceleration system ON (activated), the engine speed will
rise and the machine travel speed may suddenly become faster.
• Try to avoid travelling over obstacles. If the machine has to
travel over an obstacle, keep the work equipment close to
the ground and travel at low speed. The machine tips over
easily to the right or left. Do not drive it over obstacles
which make the machine tilt largely to the right or left.
• When driving the machine on the rough ground, drive it at
low speed and do not operate the steering suddenly. There
is a danger that the machine may tip over. The work equip-
ment may hit the ground, and the machine may lose its
balance, or it may damage the machine or structures in the
area.
• When using the machine, to prevent serious personal injury or death caused by the work equipment or by
the machine tipping over due to overloading, do not use the machine beyond the permitted performance of
the machine such as the maximum permitted load for the structure of the machine.
• When passing over bridges or structures, check first that the structure is strong enough to support the
weight of the machine. When passing on a public road, check with authorities concerned and observe their
instruction.
• 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 body or work equipment hit anything.
PRECAUTIONS WHEN TRAVELLING 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
above the ground. In case of emergency, lower the work
equipment to the ground immediately to help stop the ma-
chine.
• When driving the machine up slopes, set the operator's
cab facing uphill, when driving downhill , set the operator's
cab facing downhill. Always be sure of the safety of the
ground under the front of the machine when driving.
PRECAUTIONS FOR OPERATION SAFETY
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