L46A1 Mast Section Tower Crane monthly inspection and maintenance of the specific content and the corresponding requirements
the tower crane monthly inspection and maintenance of the specific content and the corresponding requirements. In the course of inspection and maintenance, those who find any serious situation shall report to the personnel concerned for disuse, repair or restricted use, and the inspection and maintenance shall be recorded in the equipment files in time.
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1. Daily maintenance of tower crane: According to daily inspection and maintenance.
2. Grounding Resistance: The grounding wire shall be connected reliably and the resistance measured by the grounding resistance tester shall not exceed 4 ~
3. Motor Slip Ring and Carbon Brush: clear motor slip ring and copper dust, check carbon brush should contact uniform, spring pressure is suitable, if the carbon brush wear more than 1 / 2 should be replaced.
4. Electrical components distribution box: check all parts of the electrical components, contact should be no bad contact, wiring should be fixed, check the resistance resistance box connections, should not be loose.
5. Zero-sum motor wire, cable: The Motor connected to zero without loosening, lighting and electrical equipment wire, cable should not be damaged, aging phenomenon, otherwise should be replaced.
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