Chosangalatsa cha crain ndi gawo lalikulu la zida zokweza. Zimakhala zachindunji zomwe zimagwira ntchito zolemera. Chitetezo chake komanso kudalirika ndikofunikira. Mbewuyo nthawi zambiri imapangidwa kapena yolumikizidwa kuchokera ku chitsulo chapamwamba kwambiri ndikugwiritsa ntchito njira yothandizira kutentha kuti muchepetse kulimba komanso kutopa. Malinga ndi kapangidwe kake, zitha kugawidwa mu mbedza imodzi ndi mbedza kawiri. Mbowo umodzi ndi woyenera kuwunika kwa katundu wambiri, pomwe hook iwiri imagwiritsidwa ntchito polemetsa kapena yayikulu.
Kapangidwe ka mbewa ya ganty crane ayenera kutsatira miyezo yamayiko (monga iso, DESO) kapena GRE) (monga GB T) Kuphatikiza apo, mbewayi imafunikira kuyesedwa kokhazikika (monga tinthu tating'onoting'ono (monga kuyesa kwa maginito) ndikuyesa kuyesa) ndikuyesa zoopsa monga ming'alu yobisika monga ming'alu kapena kuvala kwambiri.
Pa crane ya ganti, mbedzayo imalumikizidwa ndi makina omwe akukweza kudzera mu pulley block, ndipo amagwiritsidwa ntchito ndi chingwe kapena unyolo kuti ukwaniritse zokongoletsera. Malinga ndi ntchito zogwirira ntchito, mitundu yapadera monga zokongoletsera ndi ma strots amathanso kusankha kuti athe kusintha kusinthasintha kwa ntchito ndi mphamvu.
