Maeda CC423S-1, Operation Manual

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2. OPERATION RELATED PRECAUTIONS
2.1 PRECAUTIONS ON WORK SITE
SURVEY AND SAFETY ASSURANCE OF WORK SITE
A number of risks that may cause serious injury are imbedded in a work site. Before starting work, check
the following matters beforehand to ensure that no danger is present at the work site:
• When working near straw-thatched roofs, dead leaves or dead grass, beware of those fire-catching
object.
• Investigate the ground and road surface condition of the work site and decide the best working
method. Do not operate the machine at a site where risk of landslide or rock fall exists.
• Flatten the inclination of the work site before starting work.
• When working over the roadway, enforce “keep out” by, for instance, assigning guides or surrounding
the site by barriers, and ensure the safety of the traffic vehicles and pedestrians.
• Enforce “keep out” to prevent people from entering the work site and apply measures to prevent
people from approaching. Attempt to approach the moving machine may result in pinching or hard
collision by contact, and may result in serious accidents and deaths.
• When running on a shallow bottom stream or weak ground, examine the water depth, water flow
velocity as well as ground condition and land features in advance in order to avoid hazardous place for
travelling and operation.
• The ground of a zone adjacent to a cliff, road shoulder, and deep ditch is likely to be loosened, and
thus it should be avoided for running and performing operation. The ground in such a zone may be
collapsed by the mass and/or vibration of the machine, which may trip or fall. Be especially careful
after rain, use of dynamite, or earthquakes, as the ground will be unstable.
• The ground of an area near an earth fill or in the vicinity of a dug gutter may be collapsed by the mass
and/or vibration of the machine, resulting in the trip or fall of the machine. Before starting operation,
take necessary measures to make the ground intact and safe.
SECURING VISION
Running and operating in places with poor visibility prevent the operator from detecting hazards around
the machine and recognizing work site status, and thus may cause serious injury.
When running and operating the machine in place with poor visibility, strictly observe the following:
• If adequate view cannot be secured, deploy personnel as a marshaller as required. In that case, limit
the number of signaling marshaller to one person.
• In a dark place, turn on the working light and head lamps equipped with the machine, and use
additional lighting devices as required to light up the work site.
• When visibility is spoiled by fog, snow, rain or sand dust, stop the operation.
• If the mirrors mounted on the machine are contaminated, clean them and adjust the field of view to
secure visibility.
RECOGNISING THE SIGNAL OF MARSHALLERS AND STREET SIGNS
• To ensure the identification of weak road shoulder and ground, install sign boards. Further, for a place
with poor visibility, appoint marshaller as required. In that case, limit the number of signaling
marshaller to one person.
The operator should pay attention to sign boards and follow the marshaller’s instructions.
• All the personnel involved should understand the meaning of every signal, sign and sign board.