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Single Girder Bridge Crane Maintenance

Single girder bridge crane hook breakdown maintenance matters needing attention

In the process of using, often run into single girder bridge crane hook up breakdown, the cause of the breakdown most probably is the problem of power supply line, line control equipment or control device.Besides rising breakdown, hook can’t drop, flexible use, as well as crack problems hook exist safe hidden trouble.As the common breakdown,it is important to have correct understanding for the hook breakdown.

Hook is Electric hoist on one of the most common physical device,When lifting bearing the weight lifting load.In the process of using, once the hook damage fracture, consequence is unimaginable.Hook cracks and fracture.In order to ensure that the use of safe, when using, must strictly abide by the operation, it is strictly prohibited to overload.Inspection is to hook, wear, and the corresponding safety devices, etc. For scientific analysis.If discover the hook there is crack, according to the GB10051-88 standard.

Single girder bridge crane hook maintenance matters needing attention:
(1)For the maintenance of crane, remove the check hook, axis,single girder bridge crane, pulley, bearing and cleaning lubrication,crack the hook can not exist , or else according to the rules deal with .Threaded portion should be tightened, bearing no damage.Turn the pulley, When a relief groove of the screw knife scar appear crack,should be discarded.

(2)Check the dangerous section wear condition, when the wear degree is more than 10% of the original height, as scrap, change of handle

(3)After overhaul to test hook, with 1.25 times rated load of suspended more than 10 minutes, hook elastic is not higher than 0.25% of the original size, and no deformation, crack after download

(4)After the board hook riveting, the clearance between the plate not more than 0.3 mm.

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