2013年7月19日星期五

Crane Maintenance Points


Crane Maintenance Points
Comprehensive maintenance department for bridge cranes,   Hoist and trolley   maintenance is a very important part, which includes seven aspects: 1. brake inspection, periodic adjustments brake wheel braking and brake wheel, to ensure flexible and reliable clearance ensure that 0.5 to. 1 mm.It should be noted that, to ensure that no contaminants present in the friction surface, if found to exist must use thinner or gasoline to clean. 2. pairs of bridge  Hoist equipment  lubrication, should pay attention to speed reducer, gearbox and gears and other parts of lubrication and hydraulic oil should be noted that by asking. 3 According to the relevant provisions of the crane wire rope inspection, if more than specified will be updated immediately. 4 Check the track clean and gear will not have dirt, gravel and other objects.
   5 to pay attention when the lift hoist  body compression bridge connecting bolts, check the tightness. Always check the parts connected to each other strong, timely and tighten if loose crane. Six constant attention to noise when the machine is running, if the operation is not normal timely manner. 7 Note rotation mechanism functioning, check guarantees that the center gear mechanism crane line parallel to the centerline. And the intermediate space on the right.



Crane attention orbital welding points
Overhead  hoist equipment  operation quality basic protection in the installation guide. Therefore, we must attach importance crane rail mounting, stringent.

     Common rail mounting beam bridge crane has two kinds: one is in steel beams, precast concrete beams is. In addition, the crane rail must be removed before welding groove and nearby soil, has been cleared, revealing a metallic luster. In welding, the order should be bottom-up, layer by layer surfacing, the last picture in the spots around the crane. During the welding process issues that need attention every layer, welding electrode welding solder wave should end rather than several together to avoid arc fault. In addition, the welded joints of each track. At the end after the welding to prevent moisture.

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