ukuvuza okupholisayo
Esinye sezimo zokusebenza okufanele kwesistimu yokupholisa uketshezi yenjini evuthayo yangaphakathi ukuqina kwayo.
Izindawo okungenwa kuzo kakhulu ekuvuzeni uketshezi ukuxhumana phakathi kwamapayipi enjoloba nokunye 
izingxenye zesistimu yokupholisa. I-clamp yensimbi iqinisekisa ukugoqa okufanele kwentambo esokhethi. Kungaba itheyiphu esontekile noma eziqinisayo. Ibhandeshi eliziqinisayo lisiza wonke umsebenzi wokudilizwa nokuhlanganisa ohlelweni lokupholisa. Kodwa-ke, ngokuhamba kwesikhathi, i-tape ingase ilahlekelwe amandla ayo okuqinisa, angasakwazi ukuqinisekisa ukuthi i-snug fit lapho. Ngama-clamp asontekile, amandla okubamba alungiswa ngokuxhuma okunentambo. Kodwa-ke, ingcindezi yokuxhumana yama-clamps anjalo kufanele ihlolwe ngezikhathi ezithile. Ukuqiniswa kakhulu kwesikulufu sokulungisa kungalimaza izintambo, ikakhulukazi uma zisikwa ebusweni bebhande ngokwalo.
Ukuqina kokuxhumana ohlelweni lokupholisa akuxhomekile kuphela kuma-clamps, kodwa futhi kuma-hoses ngokwawo. Ezimweni eziningi, lezi yizintambo zenjoloba ezinokuqiniswa okwengeziwe kwangaphakathi. Inqubo yokuguga kancane kancane ibhubhisa izintambo. Lokhu kufakazelwa inethiwekhi ebonakalayo ngokucacile yokuqhekeka okuncane endaweni yenjoloba. Uma intambo ivuvukele, izikhali zayo zangaphakathi ziyekile ukusebenza futhi kufanele zishintshwe ngokushesha.
Ingxenye ebalulekile yesistimu yokupholisa yokuqina okufanele yikepisi yerediyetha ene-overpressure eyakhelwe ngaphakathi kanye namavalvu okucindezela ngaphansi. Lapho ingcindezi kusistimu yokupholisa ikhuphuka ngaphezu kwevelu emisiwe, ivalvu yokukhulula iyavuleka, ivumele uketshezi ukuthi luphumele ethangini lokunweba. Uma i-valve isebenza ngengcindezi ephansi kunaleyo ebaliwe, khona-ke ukugeleza koketshezi oluvela kurediyetha kuzoba kukhulu kakhulu futhi inani loketshezi ngeke lisangena ku-tank yokwandisa.
Ngokuvamile, imbangela yokuvuza ohlelweni lokupholisa i-cylinder head gasket eyonakele. Ukuvuza okupholile kubangelwa futhi ukulimala kwemishini kanye nokugqwala kwezingxenye zensimbi zesistimu yokupholisa. Uketshezi olusuka ohlelweni lokupholisa luphinde luphume ngophawu olunesici kumpompi wepompo.
