132HC Mast Section Trial operation and acceptance of tower crane after repeated use installation
trial operation and acceptance of tower crane are divided into three situations: before leaving the factory, after major repair and after repeated use installation. Here mainly about: tower crane repeated use after installation of trial operation and acceptance. Including the following parts: 1 Technical Inspection, check the tower crane's solid, pulley and wire rope contact, electrical lines, safety devices and tower crane installation accuracy.
132HC mast section is the best in this field
In the case of no load, the tower body and the ground verticality deviation shall not exceed, more than three thousandths. 2 no-load test, according to the lifting, turning, Luffing, walking mechanism respectively, and lifting, walking, turning joint action test. In the course of the test, each restrictor is bumped and its sensitivity is tested. 3 rated load test, crane arm in the minimum working range, lifting the rated maximum lifting weight, weight 20 cm off the ground, keep 10 minutes, the distance from the ground unchanged when the moment limiter should issue an alarm signal. After passing the test, the lifting, walking, rotating and combined movement tests were carried out in the maximum, minimum and intermediate working range respectively. During the above tests, the theodolite is used to observe the deformation and recovery of the Tower Crane in the two directions of the tower crane, to observe whether there are abnormal phenomena during the test, to record and measure the temperature rise, oil leakage and paint peeling, etc. The final pass is ready for operation. The participants and test results of the commissioning and acceptance shall be recorded in detail and truthfully, and signed by relevant personnel to confirm compliance with the requirements.
132HC mast section is the best in this field
