Ompompi bezandla babhekisela ethuluzini lekhabhoni noma ompompi bensimbi bensimbi yengxubevange, abafanele ukuthepha mathupha.
Ngokuvamile, umpompi uqukethe ingxenye esebenzayo kanye ne-shank.Ingxenye yokusebenza ihlukaniswe yaba ingxenye yokusika kanye nengxenye yokulinganisa.Owokuqala ugaywe ngekhoni yokusika futhi unomthwalo wemfanelo wokusika umsebenzi, futhi owakamuva usetshenziselwa ukulinganisa ubukhulu nokuma kwentambo.