The maintenance of the telescopic boom of the small crane occupies an important position in the maintenance of all the components of the crane. The maintenance of the telescopic boom can effectively avoid the accident of the crane and keep the crane in normal use. To check whether there is a broken mark or dead knot on the wire rope of the small crane, if there is a broken mark or dead knot, you must deal with it in time to avoid accidents when lifting; check the hydraulic oil storage capacity of the small crane to increase in time; Job operation status; then check each bearing of the crane boom and lubricant.
When a small crane is in operation, all accessories and configurations are required to work normally, and it is required to ensure that it is capable and without damage. The crane-heavy objects are generally relatively heavy. If there is a problem with the crane components, some accidents may occur, which will cause people to suffer personal and economic losses. Therefore, when you check the boom of the small crane, you must be careful to ensure that the wire rope is intact and can be extended and retracted to ensure that the boom can work better under normal conditions.
Summer is a hot and rainy season, and it is also an important season for crane maintenance. In summer, the temperature is high, pay more attention to the maintenance of the engine cooling system, regularly check the water level of the water tank, add water in time, and check the cooling system such as the radiator.
The telescopic boom is driven by oil cylinders or oil cylinders to achieve back and forth extension of the boom. The inspection items are mainly to regularly check whether the cable of the car is loose, without tension, and adjustment is required. Because the cable will be stretched after being used for a period of time, if the cable is continued to be used, the cable rope may fall off, damage the cable, and prevent the boom from being used normally. However, there are stipulated requirements when the boom cable is loaded and retracted, and the load cannot be retracted blindly. Attention should be paid to the following two aspects: 1. When the weight of the crane lifting cargo is equal to or less than 2/3 of the maximum lifting mass corresponding to the working range when the boom length is in a horizontal position, the telescopic boom is allowed to retract (to make the entire The direction of the boom is shortened), but it is not allowed to protrude outward; 2. When the mass of the crane lifting cargo is equal to or less than 2/3 of the maximum lifting mass of the crane, the telescopic boom is allowed to extend (to make the entire crane The direction of the arm becoming longer) or retracted.
