. SAFETY PRECAUTIONS FOR MAINTENANCE 2 - 32 PRECAUTION WITH HIGH-PRESS URE OIL under internal pressure. When inspecting or replacing piping or hoses, always The hydraulic system is always check that the pressure in the hy draulic circuit has been released. If the cir cuit is still unde r pressure, it will lead to serious personal injury, so alway s do as follows. replacement work when the hydraulic system is under pressure. Do not carry out inspection or replacement work when the hydraulic system is under pre If there is any leakage from the piping or hoses, the surrounding area will be wet, so check for cracks in the piping and hoses and for swelling in t he hoses.
ar safety glasses and leather gloves. ssure oil leaking from small holes use blindness if it contacts your jet of high-pressureoil and suffer h the place with clean water, and or medical attention. When carry out inspection, we ar safety glasses and leather gloves. There is a hazard that high-pre may penetrate your skin or ca eyes directly. If you are hit by a injury to your skin or eyes, was consult a doctor immediately f may penetrate your skin or ca eyes directly. If you are hit by a injury to your skin or eyes, was consult a doctor immediately f PRECAUTION FOR HIGH FUEL P RESSURE High pressure is generated inside the engine fuel piping when the engine is running.
When carrying out inspection or maintenance of the fuel piping system, wait for at least 30 seconds afte r stopping the e pressure go down before starting HANDLING HIGH-PRESSURE HO SES If oil or fuel leaks from high-pr essure hoses, it may cause fire or defectiv e operation, wh ich may lead to serious injury. If any loose bolts are fou nd, stop work and tighten to the specified t orque. If any da maged hoses are found, stop operations immediately a nd contact your Komatsu distributor. lowing problems are found. fitting. osed reinforcement wire layer. ortion. covering. Replace the hose if any of the fol Damaged or leaking hydraulic Frayed or cut covering or exp Covering swollen in places.
Twisted or crushed movable p Foreign material embedded in PRECAUTION FOR HIGH VOLTAG E nd immediately after it is stopped, high voltage is generated inside the engine When the engine is running a controller and the engine injec tor, 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 in side of the controller or the engine injecto r portion, pleas e contact your Komatsu distributor.