Ntchito zofukula, ma bulldozers, crawler crane ndi zida zina zamakina omanga ndizovuta, makamakazokwawamu kayendetsedwe ka kuyenda kuntchito kuyenera kupirira kupsinjika kwakukulu ndi kukhudzidwa. Kuti mukwaniritse mawotchi amtundu wa crawler, ndikofunikira kupanga matenthedwe otenthetsera kuphatikiza chithandizo cha kutentha, kupanga, kuponyera ndi njira zina pazigawo zambiri zomwe zimapanga chokwawa. Njira zomwe tazitchula pamwambapa ndi njira zonse zopangira mphamvu zamagetsi. Chifukwa chake, kugwiritsa ntchito mphamvu zatsopano, ukadaulo watsopano, komanso ukadaulo wokometsedwa kwakhala njira yofunikira yopititsira patsogolo magwiridwe antchito azinthu ndikuchepetsa ndalama zopangira, ndikupititsa patsogolo moyo wautumiki wazinthu. Khalani njira yabwino yopulumutsira mphamvu.