echpii attending preventive maintenance works of electrical equipments in primary crusher houseii secondary crusher houseii - prev elec mtnce in pch ii & sch ii , ht motors: charges for removal of terminalcovers on both sides, cleaning of terminal and motor, checking of terminal tightness, refixing theall in the original position and conducting trial run of ht motor with load. ( one operation consists of 2 ht motors ) , lt motors of capacity 30kw & above:charges for removal of terminalcovers on both sides, cleaning ofterminals and motor, checking ofterminal tightness, refixing the all in the original position andconducting trial run of motor with load. , lt motors of capacity below 30kw :charges for removal of terminal covers on both sides cleaning of terminals and motor, checking ofterminal tightness, refixing the all in the original positions and conducting trial run of motor with load. , charges for removing the top cover, cleaning all inside the pull chordswitch, checking the tightness, refixing to all in the original position. , charges for removing the top cover, cleaning all inside the zero speed switch, checking the terminal tightness checking, refixing theall in the original position. , charges for removing the top covercleaning all inside, the local / remote switch and push buttons, checking the terminal tightnessrefixing the all in the original position. , charges for cleaning the terminals &contactors inside the magnetic separator in all responds and tightness checking of all components. , charges for removing the top cover cleaning all inside the sv lamp / lamp light fittings and checking terminal tightness and refixing to its original positions.