Zida zokwezera injini zimasunga injini yanu kukhala yotetezeka komanso yomveka panthawi yotsika ndikusinthana.Kuti mukweze injini yolemetsa, mumafunika chokweza chokweza kwambiri cha hydraulic.Makina ofunikirawa othandizira ma injini ndi zida zofunika pakukonza magalimoto omwe akufuna kupereka chithandizo chokwanira pamagalimoto.Izi zikutanthauza kuti mutha kulonjeza makasitomala malo anu amatha kugwira ntchito zazikulu munthawi yochepa.