Crane pulley block

Crane pulley block ke e 'ngoe ea likarolo tsa mantlha tsa mechine e phahamisang, haholo e entsoe ka pulley, e be e entsoe, bracket, brape ea metse ea mohala le luber. Ts'ebetso ea eona ea mantlha ke ho fetola tataiso ea terata ea mohala oa terata ho fihlella ho boloka kapa ho eketsa lebelo, ka ho etsa joalo le ts'ebetso ea sesole. Hangata li-pulleys li etsoa ka matla a phahameng a allow se anyesang kapa lisebelisoa tsa ho kopanya li-cosete tse fapaneng ho ikamahanya le maemo a fapaneng a ho sebetsa le litlhoko tsa moroalo.

Li-brane tsa crane tsa crane li ka aroloa ho li-pulleys tse tsitsitseng (boemo bo tsitsitseng, li fetola tataiso ea matla) le mela e halikiloeng (e tsamaeang le mojaro o ka bolokang boiteko). Ho latela boemo bo bolotsana, bo ka boela bo aroloa ka mabili a le mong, hangata a pota-potileng pure

Ho netefatsa ts'ebetso ea nako e telele le e tsitsitseng ea phooko ea pulley, ho hlokahala hore u hlahlobe groove groove ea pulley, e behang lubrication le thapo e tšoanang. Haeba mapetso, mofokoli kapa lerata le sa tloaelehang a fumanoa pulley, mochini o lokela ho emisoa bakeng sa tlhahlobo hang-hang. Ka nako e ts'oanang, li-pulleys tse lumellanang le bophara ba ropo ea terata e lokela ho khethoa ho qoba ho eketseha ka lebaka la groove e nyane haholo kapa e kholo ea ropo e nyane haholo. Ntle le moo, moralo le ho kenngoa ha phoo ea pulley li tlameha ho latela melao ea naha e joalo ka "Crane Code" (GB t 33) ho netefatsa polokeho le ho ts'epahala.