The maintenance of concrete pump truck booms, which are seen by pump truckers
The pump truck boom is the most important structural part of the pump truck. As the supporting structure of the entire pump tubing, the strength and performance of the boom are also important factors in determining the quality of a pump truck. However, in the daily work, pumping concrete The process will have a strong impact on the boom, so when the pump truck is under construction, the boom will have a certain degree of jitter, which is not a good thing for the boom because the boom will withstand The deformation forces of various parties will lead to fatigue deformation of the boom steel, which will cause cracking of the truck boom and even serious safety accidents. Therefore, when the pump truck is used daily, the maintenance and maintenance of the boom is It is very important. Let’s discuss together, what aspects of the Nissan maintenance and maintenance of pump truck booms need to be done?
First, daily inspection work
2. Check the rotating platform of the pump truck, which is the connecting part of the boom and the pump truck. It mainly checks whether the connecting pin shaft and the slewing gear are worn badly. Check whether the bolt is loose or not, and whether the connecting part has fatigue cracking of the material. phenomenon.
3, check the jib cylinder, balance valve, tubing, etc. if there is oil leakage, whether the oil pipe interference with the structure, etc., as the source of power for the entire boom movement, the oil cylinder oil leakage will affect the arm lift, generally The performance is that the internal drain arm of the cylinder does not work properly.
4. Check whether the welding between the pump tube support and the boom joint is firm. The pump tube support is the connection between the pump tube and the boom. If the boom is shaken due to abnormality, it will also affect the connection of the boom joint. Sex, which causes the pump tube to fall off.
5, check the connection between the boom and the boom, including the size of the gap between the joints, as well as the pin wear, immediately find the problem and solve the problem.
Second, the boom maintenance work
1. Lubricate and lubricate each lubrication point of the boom on a regular basis, and use special grease for the pump truck boom to ensure its good working performance.
2. Bolt fasteners, nuts, etc. are regularly reinforced by torque wrenches and are tightened according to the torque of each bolt. If the bolts and nuts are replaced, replace the bolts and nuts according to the same specifications.
3, the boom cylinder balance valve is easy to block because of too much hydraulic oil impurities, therefore, the hydraulic pump pump replacement should follow the normal maintenance process of the pump to go.
4, the pump tube please use the original specifications of the pump tube, many outside the pump tube because the material quality is not up to standard, can only increase the thickness of the pump tube to increase its anti-wear energy, but in this way, the same length of the pump tube will surely weigh Increase, this will cause the arm to cause the outside load, affects the service life of the boom, therefore, the pump tube please use the original pump tube to be best.
5, found that the problem of immediate processing, for some of the fine boom cracking, can still be carried out some repair treatment, but due to the use of steel and special welding braces, repair work also need to find a regular repair shop or Pump truck brand company after sale processing.
In general, the maintenance and maintenance of the pump boom is very important. If an accident occurs, the consequences will be very serious and the maintenance costs will be very high in the future. Therefore, the money spent will still have to be spent.
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