. SAFETY PRECAUTIONS FOR MAINTENANCE 2 - 41 PRECAUTIONS WITH HIGH-PRESS URE OIL The hydraulic s ystem is always un der internal pressure. In addition, the fuel piping is als o under internal p ressure when the eng ine is running and immediately after the engine is stopped. When ca rrying out inspe ction or replacement of the piping or hose s, check that the internal pressure in the circuit has be is is not done, it may le ad to serious perso nal injury or death.
Alway Do not carry out inspection or re placement work with the Always rele ase the pressure b HYDRAULI C CIRCUIT (PAGE If there is an y leakage from the p iping or hoses, the surrou nding area will be wet, so che ck for cracks in th e piping and hoses a nd for swelling in th When carry out inspection, wea r safety glasses and leat There is a ha zard that high-pres sure oil leaking from smal may penetrate your skin or cause loss of sight if it contact skin or eyes directly.
If you are hit by a jet of high-press and suffer injury to your skin or eyes, wash the place with water, and consult a doctor immediately for medical atte may penetra te your skin or caus e loss of sight if it contact skin or eyes directly. If you are hit by a jet of high-press and suffer in jury to your skin or eyes, wash the place with water, and c onsult a doctor imm ediately for medical atte PRECAUTIONS WITH HIGH-PRESSURE FUEL When the engi ne is running, high-p ressure is generated in t he engine fuel piping.
When carrying out insp ection or maintenance o f the fuel piping syst em, stop the engine and w ait for at least 30 seconds to a llow the internal p ressure to go down bef ore starting the ope ration. HANDLING HIGH-PRESSURE HOSES AND PIPING If oil or fuel leaks from high-pressure hoses or piping, i t may cause fire or misoperation, and lead to serious If oil or fuel leaks from high-pre misopera personal inju ry, or death. If the h ose or piping mounts are loose or oil or fuel is found to b e leaking from th e mount, stop operati ons and tighten to th e specified torque.
If any dama ged or deformed ho ses or piping are found, please consult your Komatsu Replace the ho se if any of the follo wing problems are found Damaged h ose or deformed hy draulic fitting. Frayed or c ut covering or expo sed reinforcement wire la Covering sw ollen in places. Twisted or c rushed movable po Foreign mat erial embedded in c