Umthetho-siseko wokufudumeza wesixhobo sokunyibilikisa ibhitumene kukufudumala, ukunyibilika kunye nokunyibilika kwebhitumene kwigubu ngepleyiti yokufudumeza. Ikakhulu iqulunqwe ibhokisi yokususa umgqomo, inkqubo yokuphakamisa, i-propeller kunye nenkqubo yokulawula umbane.

Ibhokisi yokunyibilikisa igubu yebhitumene yohlulwe yangamagumbi aphezulu nasezantsi. Igumbi eliphezulu ligumbi lokunyibilikisa ibhitumene, eligqunywe ngokuxineneyo ngeekhoyili zokufudumeza ioyile okanye imibhobho yokufudumeza komoya oshushu. Ibtumen iyafudunyezwa kwaye iyanyibilika kwaye iphuma emgqomeni. I-crane hook ifakwe kwi-gantry, kwaye i-bucket grab ixhonywe. Ibhakethi yebhitumene inyuswa ngefestile yombane, ize emva koko ihanjiswe ecaleni ukuze ibeke ibhakethi yebhitumene kumgaqo kaloliwe. Emva koko i-propeller ityhala ibhakethi kwigumbi eliphezulu ngokusebenzisa iireyile ezimbini zesikhokelo, kwaye kwangaxeshanye, i-emele engenanto ikhutshwa kwi-outlet engasemva. Kukho itanki ye-oyile yokuthintela ukuvuza ekungeneni komphanda webhitumene. I-bitumen ingena kwigumbi eliphantsi lebhokisi kwaye iyaqhubeka ishushu kuze kube yilapho izinga lokushisa lifikelela malunga ne-100, enokuhanjiswa. Emva koko igalelwa kwitanki yebhitumene ngempompo yebhitumene. Igumbi elisezantsi linokusetyenziswa njengetanki yokufudumeza ibhitumene.
Isixhobo sokunyibilikisa ibhitumene egubu sineempawu zokungathintelwa yimeko-bume yokwakha, ukuguquguquka okuqinileyo, kunye nesantya esiphantsi kakhulu sokusilela. Ukuba imveliso enkulu iyafuneka, iiyunithi ezininzi zinokudityaniswa.