L68B2 Mast Section Cause Analysis and preventive measures for the sliding hook of tower crane key words: reasons for the sliding hook of tower crane
Tower Crane Slide Hook Cause 1, the contactor power distribution box in the tower crane fixed screw loose, connection terminal board contact, poor contact bolt, contactor main contact poor contact. The connection bolt of the rotor and stator coil of the motor is ablative and in bad contact. High and low speed motor brake pad wear exceeds the requirements.
L68B2 mast section is the best in this field
The transmission gear is broken and the fixing gear bolt is loose. Phase failure protector does not work. Tower Crane Slip Hook Preventive Measures 1, the tower crane driver in the work of the phenomenon of Slip Hook to calm, timely notification signal workers to let the ground, staff away. According to the operation rules, operate, Hook, turn arm, go trolley, etc. , the heavy object, put in no man's land. 2, do a good job before the class, class, after the class safety inspection work, to see, ears, manual, and other forms of inspection. To check and tighten the connection points of various lines from time to time. 4, to check the brake pad regularly whether the normal, motor connection bolt contact is good, and contactor contact is normal. Maintenance staff to work seriously responsible, in strict accordance with the requirements of the Tower Crane Safety Operation Rules to do, the replacement of accessories must be changed, do a good job after the inspection, commissioning work.
L68B2 mast section is the best in this field
