. SAFETY PRECAUTIONS FOR MAINTENANCE 2 - 38 PRECAUTIONS WITH HIGH-PRESSURE OIL The hydraulic system is always under internal pre ssure. In addition, the fuel piping is als o under internal pressure when the eng ine is running and immediately a fter the engine is stopped. When ca rrying out insp ection or replacement o f the piping or hoses, check that th e internal pressure in the circuit has be his is not done, it may le ad to serious personal injury or dea Do not carry out inspection or replacement wor If there is an y leakage from the piping or hoses, the surrounding area will be wet, so che ck for cracks in t he piping and hoses a nd for swelling in the hoses. and leather gloves.
rom small holes it contacts your igh-pressure oil place with clean dical attention. When carry out inspection, wear safety glasses There is a h azard that high-pressure oil leaking f may penetrate your skin or cause loss of sight if skin or eyes directly. If you are hit by a jet of h and suffer injury to your skin or eyes, wash the water, and consult a doctor immediately for me may penetra te your skin or cause loss of sight if skin or eyes directly.
If you are hit by a jet of h and suffer in jury to your skin or eyes, wash the water, and c onsult a doctor immediately for me PRECAUTIONS WITH HIGH-PRESSURE FUEL When the engi ne is running, high-pressure is gen erated in the engine fuel piping. When carrying out insp ection or maintenance o f the fuel piping system, stop the en gine 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 AND PIPING If oil or fuel leaks from high-pressure hoses o r piping, it may cause fire or misoperation, and lead to serious If oil or fuel leaks from personal inj ury, or death .
If the hose or piping m ounts are loose or oil or fuel is found to b e leaking from th e mount, stop operati ons and tighten to the specified tor que. e found, please consult your Komatsu distributor. are found. nt wire layer. If any dama ged or deformed hoses or piping ar e found, please consult your Komatsu Replace the h ose if any of the following problems Damaged h ose or deformed hydraulic fitting. Frayed or c ut covering or exposed reinforceme Covering s wollen in places. crushed movable portion. terial embedded in covering.
Twisted or Foreign ma NOISE When carrying out maintenance of the engine and you are exposed to noise for long period s of time, wear e ar covers or ear plugs w hile working If t he noise fro m the machine is too loud, it may c ause temporary or permanent hearing