Ku-Komatsu PC200-8 Ivalvu yokukhulula i-Boom Main valve yokusiza isibhamu

Lokhu esikhuluma ngakho kuvalvu yokusiza enkulu yilapho umfutho wesistimu ukhuphuka kancane, imodeli yesithupha
Lapho umehluko wengcindezi phakathi kweziphetho ezimbili ze-valve eyinhloko ye-plunger udlula umsebenzi we-splunger ethambile ye-valve eyinhloko, i-valve enkulu ye-plunger iyaphakanyiswa, i-valve eyinhloko ivuliwe, isiphethu sixhunywe ethangini likawoyela, inani elikhulu. kawoyela iphonswa ngembobo ye-valve enkulu, bese igeleza ibuyele ethangini likawoyela ngembobo yokubuya kawoyela, okuyinqubo yokulawula ukuchichima kwengcindezi. Ukuqonda lesi simiso kungaqonda isimiso sokusebenza se-boom ukugcina i-valve iphansi ngokufanisa.
Uma ingalo ye-hydraulic excavator yehliswa, kubalulekile ukuqaphela ukuthi incike ku-valve ye-PPC elawulwa kusukela ekuguquleni.
Uwoyela wengcindezi eqondisayo kuqala uphusha i-valve yesilayidi elawula i-valve eyinhloko (i-valve ilingana ne-valve yokushayela kuvalvu yokusiza umshayeli, ehamba ngalesi sikhathi.
Amafutha asegunjini elingaphansi kwengalo abuyela ethangini ngembobo kawoyela yangaphakathi yevalvu eyinhloko ngendlela evulwe ivalve yesilayidi. Lapho ukugeleza kwamafutha okucindezela kudlula emgodini wokudambisa we-valve eyinhloko ye-valve yokubamba, ukwehla kwengcindezi kukhiqizwa, ukuze ukucindezela kwamafutha okusebenza emaphethelweni aphezulu nangaphansi kwe-valve eyinhloko kungalingani, okwenza umehluko othile wokucindezela. I-valve eyinhloko ivuliwe, futhi uwoyela ocindezelayo ogeleza usuka phansi we-boom ugeleza nge-valve eyinhloko ukuya ku-valve yokulawula i-boom. Uma kunomfutho ophakeme ongavamile endaweni engaphansi yesilinda se-boom, i-valve yokuphepha ku-valve yokubamba iyavuleka ukuze idlale indima yokuvikela.