Waste Materials; Compressed Air; Periodic Replacement Of Safety Critical Parts; Battery Main Switch Precautions - Komatsu PC22MR-3 Operation & Maintenance Manual

Hydraulic excavator
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SAFETY

WASTE MATERIALS

To prevent pollution, pay careful attention to the method of disposing of waste materials.
q Always put oil drained from your machine in containers.
Never drain oil directly onto the ground or dump into the
sewage system, rivers, the sea, or lakes.
q Obey appropriate laws and regulations when disposing of
harmful objects such as oil, fuel, coolant, solvent, filters,
and batteries.

COMPRESSED AIR

q When carrying out cleaning with compressed air, there is a hazard of serious injury caused by flying particles.
q When using compressed air to clean elements or the radiator, always wear safety glasses, dust mask, gloves,
and other protective equipment.

PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS

q For using the machine safely for an extended period of time, replace safety-critical parts like hoses and seat
belts periodically.
Replacement of safety-critical parts: (See "SAFETY-RELATED PARTS (4-20)").
q The material of these components naturally changes over time, and repeated use causes deterioration, wear,
and fatigue. As a result, there is a hazard that these components may fail and cause serious injury or death.
It is difficult to judge the remaining life of these components from external inspection or the feeling when
operating, so always replace them at the specified interval.
q Replace or repair safety-critical parts if any defect is found, even when they have not reached the specified
replacement time.

BATTERY MAIN SWITCH PRECAUTIONS

q Should the electric circuits need to be checked or serviced, stop the engine, wait at least one minute, and
afterwards turn the battery main switch to OFF and extract the specific key.
q The switch must be always turned to OFF:
q When the machine is not going to be used for a long period or when the machine is prepared for
prolonged inactivity.
q When the electric circuits need to be fixed.
q Before arc welding.
q Before removing the battery.
q Before replacing a fuse.
WEAM014500
SAFETY MAINTENANCE INFORMATION
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