Ma cranes a Tower amafika pamalo omanga pa 10 mpaka 12 ma trailer a trailer.Ogwira ntchitowa amagwiritsa ntchito kiranberi kuti asonkhanitse jib ndi gawo la makina, ndikuyika mamembala opingasawa pamtunda wamamita 40 (12-m) omwe amakhala ndi magawo awiri a mast.Crane yam'manja ndiye imawonjezera ma counterweights.
Mlongoti umachokera ku maziko olimba awa.Mlongoti wake ndi waukulu, wopangidwa ndi katatu, womwe nthawi zambiri umatalika mamita 3.2.Maonekedwe a katatu amapatsa mlongoti mphamvu kuti ikhale yowongoka.
Kuti ikweze kufika pachitali, crane imadzikulitsa yokha gawo limodzi la mlongoti panthawi imodzi!Ogwira ntchitowa amagwiritsa ntchito chokwera pamwamba kapena chimango chokwera chomwe chimakwanira pakati pa chowombera ndi pamwamba pa mast.Nayi njira:
Ogwira ntchito amapachika cholemetsa pa jib kuti athetsere kulemera kwake.
Ogwira ntchito amachotsa chida chowombera pamwamba pa mast.Nkhosa zazikulu zama hydraulic zokwera pamwamba zimakankhira chowotchera mpaka 20 mita (6 m).
Wogwiritsa ntchito crane amagwiritsa ntchito crane kukweza gawo lina la mita 20 pampata womwe watsegulidwa ndi chimango chokwera.Ikamangidwa pamalo ake, crane imatalika mamita 20!
Nyumbayo ikamalizidwa ndipo nthawi yakwana yoti crane igwe, ntchitoyo imasinthidwa - crane imadula mlongoti wake ndiyeno zingwe zing'onozing'ono zimagawa zina zonse.