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PRECAUTIONS FOR MAINTENENCE
HANDLING HIGH-PRESSURE HOSES
If oil or fuel leaks from high-pressure hoses, it may cause fire or defective operation, which may lead to serious
injury. If any loose bolts are found, stop work and tighten to the specified torque. If any damaged hoses are found,
stop operations immediately and contact your Komatsu distributor.
Replace the hose if any of the following problems are found.
Damaged or leaking hydraulic fitting.
Frayed or cut covering or exposed reinforcement wire layer.
Covering swollen in places.
Twisted or crushed movable portion.
Foreign material embedded in covering.
PRECAUTION FOR HIGH VOLTAGE
When the engine is running and immediately after it is stopped, high voltage is generated inside the engine
controller and the engine injector, and there is danger of electrocution. Never touch the inside of the controller
or the engine injector portion.
If it is necessary to touch the inside of the controller or the engine injector portion, please contact your Komatsu
distributor.
To prevent pollution, pay careful attention to the method of disposing of waste materials.
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.
Obey appropriate laws and regulations when disposing of
harmful objects such as oil, fuel, coolant, solvent, filters, and
batteries.
MAINTENANCE FOR AIR CONDITIONER
If air conditioner refrigerant gets into your eyes, it may cause blindness; if it touches your skin, it may cause frostbite.
Never touch refrigerant.
When carrying out cleaning with compressed air, there is a hazard of serious injury caused by flying particles.
When using compressed air to clean elements or the radiator, always wear safety goggles, dust mask, gloves,
and other protective equipment.
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