?dabara:

Kwes?r? ekwes? maka igwu mgb?r?gw? osisi na mm?p?ta na-ewu ubi.

Njirimara ngwaah?a

Ngwaah?a a nwere cylinder hydraulic ab??, nke a na-edozi n'okpuru ogwe aka excavator, nke na-ar? ?r? nkwado na lever.

A na-edozi cylinder ?z? na ala nke onye na-ewep? ya, nke ike hydraulic na-akwali ka ? gbasaa ma weghachite iji gbajie mgb?r?gw? osisi ma belata nguzogide mgbe ? na-ekewa na-ewep? mgb?r?gw? osisi.

N'ihi na ? na-eji otu usoro hydraulic d? ka hama hydraulic, cylinder nke edozi n'okpuru ogwe aka ch?r? kewaa mman? hydraulic site na cylinder ogwe aka iji nweta ?r? nke ?gbat? na ?weghachi n'otu oge ah? d? ka cylinder b?ket, nweta ar?m?r? na ngwa ngwa d? elu.