Precautions When Traveling On Slopes - Komatsu PC138US-11 Operation & Maintenance Manual

Hydraulic excavator
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PRECAUTIONS FOR OPERATION
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 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
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.
When driving the machine up a steep slope, extend the
work equipment to the front to improve the balance, keep
the work equipment approximately 20 to 30 cm above the
ground, and drive it at low speed.
When driving the machine downhill, lower the engine speed, keep the travel lever close to NEUTRAL posi-
tion, and drive it at low speed.
Always drive the machine straight up or down a slope. Driving the machine at an angle or across the slope
is extremely dangerous.
Do not turn on slopes or drive across slopes. Always go
down to a flat place to change the position of the machine,
then drive it on to the slope again.
Do not drive the machine on a slope covered with the steel plates. Even with slight slopes there is a hazard
that the machine may slip.
Even with slight slopes, there is a hazard that the machine may slip.
2-32
WENAM00111
SAFETY

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