Precautions Related To Protective Structures; Protection Against Falling, Flying Or Intruding Objects - Komatsu PC290LC-11 Operation & Maintenance Manual

SAFETY

PRECAUTIONS RELATED TO PROTECTIVE STRUCTURES

The operator's compartment is equipped with a structure (such as ROPS, OPG) to protect the operator by ab-
sorbing the impact energy.
As for the machine equipped with ROPS, if the machine weight
(mass) exceeds the certified value (shown on ROLL-OVER
PROTECTIVE STRUCTURE (ROPS) CERTIFICATION plate),
ROPS will not be able to fulfill its function. Do not increase ma-
chine weight beyond the certified value by modifying the ma-
chine or by installing attachments to the machine.
Also, if the function of the protective equipment is impeded, the
protective equipment will not be able to protect the operator,
and the operator may suffer injury. Always observe the follow-
ing.
• If the machine is equipped with a protective structure, do
not remove the protective structure and perform operations without it.
• If the protective structure is welded, or holes are drilled in it, or it is modified in any other way, its strength
may drop. Any modification is prohibited.
• If the protective structure is damaged or deformed by falling objects or by rolling over, its strength will be
reduced and it will not be able to fulfill its function properly. In such cases, always consult your Komatsu
distributor.
• Even if the protective structure is installed, always fasten your seat belt properly when operating the ma-
chine. If you do not fasten your seatbelt properly, it cannot display its effect.
Always fasten your seat belt while operating the machine.

PROTECTION AGAINST FALLING, FLYING OR INTRUDING OBJECTS

On jobsite where there is a danger of falling objects, scattering
fragments, and things which may intrude into operator's cab, in-
stall the necessary equipment to protect the operator depend-
ing on the working conditions.
• When operating on jobsite, such as mines or quarries
where there is a hazard of falling rocks, install falling object
protective structure (FOPS) and a front guard, and always
keep all the windows and doors closed when operating. In
addition, always check that there is no one except the op-
erator in the surrounding area where there is a danger of
falling objects, scattering fragments.
• When performing demolition or breaker operations, install
a front guard and always keep all the windows closed dur-
ing operation. In addition, always check that there is no
one except the operator in the surrounding area where
there is a danger of falling objects, scattering fragments.
Above precautions are developed for the standard jobsite. De-
pending on the conditions of the jobsite, installation of addition-
al guards is necessary.
Do not operate the machine without the necessary guards. Be
sure to consult with your Komatsu distributor about necessary
guards.
GENERAL PRECAUTIONS COMMON TO OPERATION AND MAINTE-
NANCE
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