Izinhlangothi ezingenhla nezingezansi zebhande lokuthutha zithonywa ngokulinganayo futhi zizimele. Ngokuvamile, ukufana okunganele kwamavila aphansi kanye nezinga lamarola kuzodala ukuchezuka ohlangothini olungezansi lwebhande lokudlulisa. Isimo sokuthi uhlangothi olungezansi lugijima futhi uhlangothi olungaphezulu lujwayelekile ngokuyisisekelo kungenxa yedivayisi yokuhlanza embi, i-roller ephansi inamathele ezintweni, ama-counterweight rollers awahambisani, noma ukusekelwa kwe-counterweight kutshekisiwe, futhi ama-roller aphansi azihambelani. Isimo esiqondile kufanele silungiswe ngokuvumelana nesimo sangempela. Ngokuvamile, ukuchezuka okungaphansi kungalungiswa ngokuthuthukisa isimo sokusebenza sedivayisi yokuhlanza, ukususa i-roller nezinto ezinamathele ku-roller, ukulungisa i-roller eyisicaba engaphansi, i-underside roller emise okuka-V, noma ukufaka i-roller yokuqondanisa engaphansi.
Isikhathi sokuthumela: May-10-2023