Selemong sena, libaka tse ngata tsa naha ea habo rona li na pula, 'me joale re hloka ho etsa mosebetsi o motle oa ho thibela mafomelever le literata pukwanana. Sebaka sa lever se ka sebelisoa makhetlo a mangata, empa hoa hlokahala ho qoba ho sebelisalever le literata pukwanana maemong a leholimo a lipula ho ntlafatsa bophelo ba ts'ebeletso ealever block le ho boloka ts'ebetso ea ts'ebeliso ealever block. Etsa mosebetsi oa tlhokomelo bakeng sa lever hoist nakong ea lipula. Litaba tsalever block is metal, and most of the metal has the defect of rust. Doing good maintenance work can avoid the danger of rusting on the lever hoist and extend thelever block. The service life improves its operational safety. If the project is more urgent and the amount of precipitation is particularly low, people can consider building a canopy for lifting work, but it must be maintained in time after use.
