Li-cranes tsa tower li fihla setšeng sa kaho ka lisebelisoa tsa literekere tse 10 ho isa ho tse 12.Basebetsi ba sebelisa crane e tsamaeang ho kopanya jib le karolo ea mochini, 'me ba beha litho tsena tse tšekaletseng holim'a mast ea 40-foot (12-m) e nang le likarolo tse peli tsa mast.The mobile crane joale e eketsa li-counterweights.
Mast e phahama ho tloha motheong ona o tiileng.Mast ke sebopeho se seholo, se nang le litharo tse tharo, hangata maoto a 10 (3.2 metres) square.Sebopeho se mahlakore a mararo se fa palo matla a hore e lule e otlolohile.
E le hore e nyolohele bophahamong ba eona bo phahameng ka ho fetisisa, crane e ikemela karolo e le 'ngoe ea lipalo ka nako!Basebetsi ba sebelisa sepalangoang se ka holimo kapa foreimi ea ho hloa e lekanang pakeng tsa yuniti ea ho hlaba le bokaholimo ba palo.Mokhoa ona ke ona:
Basebetsi ba fanyeha boima holim'a jib ho leka-lekanya boima ba 'mele.
Basebeletsi ba koalla yuniti ea ho bolaea ho tloha holim'a sekepe sa sekepe.Lipheleu tse kholo tsa hydraulic ka holim'a mohloa o ka holimo li sutumelletsa yuniti ea ho bolaela hodimo ho limithara tse 20 (6 m).
Mokhanni oa crane o sebelisa krene ho phahamisa karolo e 'ngoe ea maoto a 20 ka har'a lekhalo le butsoeng ke foreimi ea ho hloa.Hang ha e se e kentsoe ka liboutu, crane e bolelele ba limithara tse 20!
Hang ha moaho o felile 'me ke nako ea hore crane e theohe, ts'ebetso e khutlisetsoa morao - krene e ikarola palo ea eona ea sekepe ebe e arola tse ling kaofela.