Light-duty castor maintenance should pay attention to several aspects: 1, the high speed on rough road surface or heavy pressure wheels will cause the wheels or equipment damage. So, please regularly check the bracket and fasteners. The loose wheel shaft and the nut tightening and check weld or support plate for damage. Overload or impact will lead to deformation. Stent overloading tilting deformation caused by pressure on individual wheels wheel premature failure. If is the rod type, should be to tighten the nut or solid rivet and ensure the equipment support did not bend and pole installed correctly. Assembly caster wheel lock nut or locking should be used when the gasket. Expansion plug of castor device to ensure that the plug rod firmly installed in a casing. 2, lubrication: add lubricating oil regularly, wheels and bearing can use for a long time. Put grease on a wheel shaft, sealing ring and roller bearing friction within the site, can reduce friction and make more flexible rotation. Under normal circumstances every six months on a lubricating oil. The car in a month after cleaning for wheel lubrication. The wheels: visual inspection abrasion of the wheels. The wheel rotational impeded associated with fine impurities such as red, the rope. The intertwining of anti-wind cover can stop these stuff. Castor also not too loose or too tight also, timely replacement of the damaged castor to avoid unstable rotation. Inspect and replace the wheel after, shall ensure that use lock washers and nut tightening wheel axle. Because of loose axle can lead to friction wheel with stents and jammed. Replace the wheels and bearings should be to avoid the loss. 3, to move: if the activity is too loose, should be replaced immediately. Such as castor center rivet nut is fixed shall ensure that its locked firmly. Such as activity can't free rotation, should check the ball in the presence of corrosion or dirt. If there is a fixed type caster wheel assembly, shall ensure that castor no bending phenomenon. Castor and wheels has the following scenario: - Normal services: such as store, supermarket shopping carts, office equipment; - - - - - - Indoor use, such as chair, furniture; - - - - - - Industrial purpose: for example, the medium and heavy load transportation equipment; - - - - - - Health services: such as hospital beds, patient trolley;