In the use of overhead cranes, in order to make it safe and reliable work, eliminate the potential for accidents, maintenance personnel must regularly carry out safety checks on lifting machinery, the inspection includes:
The electromagnetic brake inspection:
Check the position switch:
Check whether the contacts of cam controller and main command controller are in good condition, whether the contact surface of each dynamic and static contact is in a straight line, whether the connecting wires are firm, and whether the ground resistance of each contact should not be less than 0.5M.
Check the resistors used for speed control, whether they are broken or touching each other; the integrity of the insulators, whether the lead wires are solid; measure the insulation of the resistors to the ground, and fill in the asbestos cloth between the resistors with large gaps.
Check whether the sliding contact line is damaged, leakage, insulation is good; brush moving without collision, jumping phenomenon, brush and the wire between the wire has broken strands, if there should be timely replacement and adjustment.
Protect the power distribution cabinet and cab inspection:
In the process of using lifting machinery in addition to the above-mentioned content for regular inspection, should also be the crane motor; protection control panel in the contactor; lifting ropes, etc. for regular inspection.
Operation Principle: customer orientation , excellent quality , interity-based and excellent service .