(1) Carry out the maintenance work before and after the shift according to the regulations. After the inspection before operation, it should be tested once in the full height, and the damp condition of each electrical component should also be checked after rain. Problems are found and dealt with in a timely manner.
(2) Check and ensure that the upper, lower, left, and right rollers are securely fastened, and that the bolts of the rack back wheel and the transmission base plate are not deformed or loosened.
(3) Check the function of the limit switches of the single, double and bottom cage doors of the ladder cage and related limit switches of the superelevation, ground, counterweight lifting points, emergency switches, limit circuit breakers, etc. should be normal, and test the circuit breaker action separately. .