Tlhokomelo ea filthara ea oli e khutlang e bohlokoa bakeng sa ho netefatsa ts'ebetso ea eona e tloaelehileng le ho lelefatsa bophelo ba eona ba ts'ebeletso.
Oli ka har'a sistimi ea hydraulic e bapala karolo ea bohlokoa, e tsamaisa phetiso ea mecha ea litaba e hatelletsoeng le ts'ireletso ea likarolo tsa lubrication.
Sistimi ea Hydraulic e bapala karolo ea bohlokoa lits'ebetsong tse ngata tsa indasteri. E le ho boloka ts'ebetso e tsitsitseng ea tsamaiso ea hydraulic, hydraulic oil filter ke e 'ngoe ea likarolo tsa bohlokoa.
Hydraulic filter element ke karolo ea bohlokoa haholo tsamaisong ea hydraulic, e ka sefang litšila le litšila ka har'a oli ea hydraulic, le ho sireletsa ts'ebetso e tloaelehileng ea sistimi ea hydraulic.