Mugihe cyo kugerageza kutagira umutwaro wo kuvanga asifalt, imashini yikubise gitunguranye, kandi ikibazo cyo gutangira cyongeye kubaho. Ibi birashobora gutuma abakoresha bahangayika, kandi inzira yakazi izatinda. Ikibazo kigomba gutsinda vuba bishoboka.

Muri iki kibazo, inzira yonyine ni ukugerageza gusimbuza ubushyuhe bwumuriro wa asfalt ivanze nundi mushya, ariko ikibazo ntikirakemuka; n'umuhuza, moteri ya moteri irwanya, guhangana nubutaka, voltage ya faza, nibindi birasuzumwa, ariko ntakibazo kiboneka; kuyikuraho Umukandara woherejwe no gutangira kunyeganyeza ecran byose nibisanzwe, byerekana ko amakosa yo kuvanga asfalt atari mubice byamashanyarazi.
Nshobora gusa kongera gushiraho umukandara wohereza hanyuma nkongera nkongera kunyeganyeza ecran, gusa nasanze blok ya eccentric yakubitaga bikabije. Nyuma yo gusimbuza ecran ya ecran yerekana, gushiraho blok ya eccentric, no gutangira ecran yinyeganyeza, kwerekana ammeter byabaye ibisanzwe kandi ibintu byo kugendagenda kumashini byarazimiye.