4
⚫
Pay attention to that whether other people stay in work range or not. Ring horn or use other
signals to warn before moving the machine.
⚫
If the operator’s vision is blocked when the machine
backs, a signalman is needed and the signalman
should always be seen.
⚫
If signalman is needed, he or she should use hand
signal. Only when both signalman and operator
understand the meaning of signal, the operator can
operate the machine traveling and swinging.
⚫
Understand all the meanings of flag, mark, and signal,
and determine the person who is in charge of
signaling.
⚫
Keep the cleanness of window, mirror, and lamp.
⚫
When the visibility is weakened by dust, rain, and
fog, etc, lamplight should be used.
⚫
Please read carefully and understand well the
contents of this manual book.
1.14 OPERATE DIGGING WORK SAFELY
⚫
Before digging, operator should be aware of the
position of the embedded lines, such as cable, gas
pipe, water supply pipe, and operate the machine
carefully to prevent accident.
⚫
All the non-working people should be away from the
working range of machine.
⚫
Make sure the ground of working site is hard enough
to support machine.
⚫
When the machine works at pithead, the tension
wheel end should be outward pithead, keeping the
traveling orientation vertical with pit cliff. In this
way, the machine can move away easily when the
cliff collapses.
⚫
When the machine works in deep spot, you should
prevent the boom bottom and cylinder from colliding
with high objects.
⚫
Turn over prevention
When the machine works on slope, the track should
be parked along the slope, retract the bucket as much
as possible, keep the bucket close to ground and
machine to avoid turning over.
When swinging with load, decrease swing speed to avoid turning over. When work on frozen
ground, you should prevent the ascending temperature from causing the ground to soften,
otherwise it will affect the stability of machine.
