Komatsu PC1250-11, Original Instructions Manual

Page: 48 / 452

• Always operate the machine only when seated on the
operator's seat.
• Before starting to move, check again that there is no
people or obstacle in the surrounding area.
• Before moving, sound the horn to warn people in the
surrounding area.
• Check that the travel alarm and other alarms work
properly.
• If there is an area in the rear of the machine which
cannot be seen, position a signalman. Be extremely
careful not to hit any people or object, and drive or
swing slowly.
Always be sure to perform the above precautions even when
the machine is equipped with mirrors and cameras.
PRECAUTIONS WHEN TRAVELING
Serious personal injury or death can result from tipping over of the traveling machine or its accidental contact.
Always observe the following.
• When driving the machine or performing operations, always keep a safe distance from people, structures,
or other machines to avoid coming into contact with them.
• When driving the machine on a level ground, keep the
work equipment at height (A) of 40 to 50 cm above the
ground. If that height is not maintained between the work
equipment and the ground, the work equipment may get
stuck in the ground and the machine may tip over.
• If the view to the right side is poor, raise the boom to en-
sure better visibility.
• Always turn the auto-deceleration switch OFF (cancel)
when driving the machine on rough ground or steep
slopes. If the machine is operated with the auto-decelera-
tion system ON (actuated), the engine speed will rise and
the machine travel speed may suddenly become faster.
• Try to avoid traveling 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 traveling on rough ground, drive the machine at low
speed and avoid sudden changes in direction to prevent
the machine from turning over. The work equipment 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 in-
jury 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.
,&
,&
PRECAUTIONS FOR OPERATION SAFETY
2-24