. SAFETY PRECAUTIONS FOR MAINTENANCE it has stopped, and inside the 2 - 33 PRECAUTION WITH HIGH-PRESSURE OIL l pressure. When inspecting or replacing piping or hoses, always The hydraulic system is always under interna or replacing hoses check that the pressure in the hydraulic circuit has been released. If the c ircuit is still und er pressure, it wi ll lead to serious perso nal injury, so always do as follow s. work when the hydraulic system is under pressure.
Do not carr y out inspection or replacement work when the hydraulic system is under p If there is an y leakage from the piping or hose s, the surrounding area wil l be wet, so che ck for cracks in th e piping and hoses When carry and for swelling in the hoses. ses and leather gloves. ng from small holes s if it contacts your ssureoil and suffer th clean water, and ention. out inspection, wear safety glas There is a h azard that high-pressure oil leaki may penetrate your skin or cause blindnes eyes directly. If you are hit by a jet of high-pre injury to your skin or eyes, wash the place wi consult a doctor immediately for medical att ate your skin or cause blindnes y.
If you are hit by a jet of high-pre r skin or eyes, wash the place wi octor immediately for medical att PRECAUTION FOR HIGH FUEL PRESSURE When the eng ine is running, high-pressure is g enerated in the engine fuel piping. When carrying out i nspection or maintenance o f the fuel piping system, stop the engine and wait for at least 30 seconds to a llow the internal pressure to go down be fore starting the operation. HANDLING HIGH-PRESSURE HOSES If oil or fuel leaks from high-pressure hoses, it may cause fire or defective operation, w hich may lead to serious injury. If an stop operat y loose bolts are found, stop work and tighten to the specified torque.
If any d amaged hoses ar e found, ions immediately and contact yo ur Komatsu distributor. ms are found. ment wire layer. Replace the h ose if any of the following proble Damaged or leaking hydraulic fitting. Frayed or c ut covering or exposed reinforce Covering s wollen in places. crushed movable portion. terial embedded in covering. Twisted or Foreign ma PRECAUTION FOR HIGH VOLTAGE When the engine is running or immediately af When the eng high voltage i s generated at the injector term engine control ler, so there is danger of electroc the injector ter minal or the inside of the engine If it is necessa ry to touch the injector terminal engine control ler, please contact your Komats