SAFETY PRECAUTIONS DURING OPERATION
2-17
PRECAUTIONS DURING OPERATION 2
EXAMINATION AND CONFIRMATION OF WORKSITE
Before starting operations, check first if there is any danger on the jobsite. If you do not understand the dangers of
the jobsite before starting operations, the machine may tip over, or the ground may collapse, or rocks may fall,
causing injury to the operator. Always:
q Check the terrain and condition of the ground at the worksite, and determine the safest method of operation.
Do not operate where there is a hazard of landslides or falling rocks.
q Prevent any unauthorized person from entering the operating area.
q Before operating in shallow water or on soft ground, check the depth of the water, speed of the current, and
the firmness and shape of the ground. Avoid any area where there is any obstruction to travel operations.
q Maintain the travel path on the jobsite so that there is no obstruction to travel operations.
WORKING ON LOOSE GROUND
q Do not operate close to cliffs, road shoulders, or deep ditches where the ground may be soft. There is danger
that the ground may collapse under the weight or vibration of the machine, causing the machine to tip over or
fall, and resulting in injury to the operator. In particular, be careful when carrying out operations after rain, after
explosives have been used, after earthquakes, or in other cases where the ground may easily collapse.
q The ground on embankments or close to ditches may collapse under the weight or vibration of the machine,
causing the machine to tip over or fall, and resulting in injury to the operator. Take action to ensure that the
ground is safe before starting operations.
DO NOT GO NEAR HIGH-VOLTAGE CABLES
Electrocution can result from contacting or approaching underground or overhead power cables. Never approach
overhead power lines with any part of your machine. Use extreme caution.
q Before starting work in the vicinity of electric cables, inform the local power company of the work to be per-
formed, and ask them to take the necessary steps to ensure safety.
q Know your margin of safety. If possible, have power to the
lines disconnected. If not possible, request a signal person
for guidance to maintain at least minimum distance
required by law from the overhead lines.
q To prepare for any possible emergencies, wear rubber
shoes and gloves. Lay a rubber sheet on top of the seat,
and be careful not to touch the chassis with any exposed
part of your body.
q When carrying out operations near high voltage cables, do
not let anyone near the machine.
q If the machine should come too close or touch the electric
cable, to prevent electric shock, the operator should not
leave the operator's compartment until it has been con-
firmed that the electricity has been shut off.
Also, do not let anyone near the machine.
Voltage of Cables Safety Distance
100V - 200V Over 2 m
6,600V Over 2 m
22,000V Over 3 m
66,000V Over 4 m
154,000V Over 5 m
187,000V Over 6 m
275,000V Over 7 m
500,000V Over 11 m
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