Precautions When Operating On Slopes; Prohibited Operations - Komatsu PC490LC Installation And Instruction Manual

SAFETY
• 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.
• Drive the machine at low speed on the grass or fallen leaves. Even with slight slopes, there is a hazard that
the machine may slip.
• If the engine stops, move the control levers immediately to NEUTRAL position, set the lock lever to LOCK
position, and then start the engine.

PRECAUTIONS WHEN OPERATING ON SLOPES

• When working on slopes, there is a hazard that the machine may lose its balance and turn over when per-
forming swing or work equipment operations. This may lead to serious personal injury or death. Always pro-
vide a stable place when performing these operations, and operate carefully.
• Do not swing the work equipment from the uphill side to
the downhill side when the bucket is loaded. This opera-
tion is dangerous, and may cause the machine to turn
over.
• If the machine has to be used on a slope, pile the soil to
make a platform (A) that will keep the machine as horizon-
tal as possible.
• Do not work on a slope covered with the steel plates. Even
with slight slopes there is a hazard that the machine may
slip.

PROHIBITED OPERATIONS

If the machine turns 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 FOR OPERATION
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