Njengoba ngingazange nginake kakhulu i-valve ehlehlayo esitshalweni sokuxutshwa kwetiyela ngaphambili, angikwazi ukuzisiza mayelana nokwehluleka kwalolu cingo. Eqinisweni, ukwehluleka kwe-valve yokuhlehlisa akuyona inkimbinkimbi kakhulu. Uma nje wazi kancane ngakho, uzokwazi ngempela ukuthi ungabhekana kanjani nakho?
Kukhona futhi ama-valve ahlehlayo ezitshalweni zokuxuba i-asphalt, futhi ukwehluleka kwawo akuyona into engaphezu kwezinkinga ezivamile njengokuhlehla okufika ngesikhathi, ukuvuza kwegesi, nama-valve omshayeli we-electromagnetic pilot. Yiqiniso, izimbangela nezixazululo ezihambisana nokubonakaliswa kwezinkinga ezahlukene nazo zihlukile. Ngokwenzeka kokuhlehliswa okungazelelwe kwe-valve ehlehlayo, iningi labo libangelwa ukugcoba okungalungile kwe-valve, iziphethu ezinamathele noma ezilimele, uwoyela noma ukungcola okunamathele ezingxenyeni ezishelelayo, njll. Ngenxa yalokhu, kuyadingeka ukuhlola isimo se-valve. idivayisi yenkungu yamafutha kanye ne-viscosity yamafutha okugcoba. Uma kunenkinga, amafutha okugcoba noma ezinye izingxenye zingashintshwa. Ngemuva kokuthi isitshalo sokuxuba i-asphalt sesisebenze isikhathi eside, i-valve yayo ehlehlayo ijwayele ukugqokwa indandatho ye-valve core seal, ukulimala kwesiqu se-valve nesihlalo se-valve, okuholela ekuvuzeni kwegesi ku-valve. Ngalesi sikhathi, indlela efanele nesebenzayo yokubhekana nakho ukuvala indandatho yophawu, isiqu se-valve kanye nesihlalo se-valve, noma ukubuyisela ngokuqondile i-valve ehlehlayo ukuze unqobe inkinga yokuvuza.