Ƙwararren birki na diski ya dace da sassan Caterpillar Ƙwararren Ƙwararren Ƙwararren Ƙwaƙwalwa: 916, 920, 926, 926A, 930, 930R, G916, G926;Hadakar mai ɗaukar kayan aiki: IT18, IT18B, IT28, IT28B;PAVING COMPACTOR: CP-643, CP-653, CS-643, CS-653;ENGINE - MACHINE: 3204, 3304. Bangaren rukunin birki na hydraulic ne tare da pads a ciki.Bayan na'ura mai haɓakawa yana aiki, matsi mai ƙarfi yana fitowa daga na'ura zuwa ma'aunin birki, sa'an nan kuma fistan da ke cikin caliper na birki ya sa birki ya matsa don cimma tsayawar na'ura mai juyi.A ƙarshe, za a dakatar da dabaran.