Howo to make good maintenance for howo dump truck
The main difference between the dump truck and the general vehicle is the lifting function. The hydraulic cylinder is very important, so it is very important to check the hydraulic system. (1) Check the hydraulic oil quantity of the dump truck, if there is any shortage, timely check, check whether the hydraulic system is damaged or leaked, and if necessary, deal with it in time; (2) Pay attention to and check whether the hydraulic cylinder of the dump truck supports the upper and lower support, and the connection and fastening between the components such as the linkage mechanism are reliable. Observing whether the moving parts and their adjacent fixing parts are abnormally damaged or deformed; (3) Check the integrity of the dump truck compartment, sub-frame, spare tire carrier, etc., especially pay attention to check whether the weld has open welding or cracks; (4) Check the working or wear condition of the moving parts such as the gear pump, power take-off and hydraulic cylinder of the dump truck, and carry out maintenance, repair and replacement of wearing parts.
In addition, daily maintenance is also very important. Regularly check the following items of the dump truck every week or after 50 hours of work: check all the air lines and oil passages of the dump truck for leaks, replace damaged hoses in time; check all bolts. If the nut is loose, if necessary, it is necessary to tighten and check whether the valve on the vehicle and the hydraulic cylinder are dirty. If necessary, it needs to be cleaned; each oil injection point must be filled once to ensure the normal operation of the vehicle; check the mat and rubber block Or the case of the rubber pad, if it is aging, it must be replaced in time.
For the maintenance and maintenance of dump trucks, we must pay attention to the following points: (1) The high-pressure hose of the dump truck must be replaced every two years. If the hose is found to be damaged or partially expanded, it should be replaced in time; (2) It should be checked frequently whether the dump truck dumping mechanism has air leakage and oil leakage. When filling the hydraulic oil, check whether the filter installed at the fuel filler is damaged and replace if necessary to avoid the intrusion of impurities and accelerate the wear or damage of the hydraulic components. It is forbidden to mix and use hydraulic oil of different grades and add hydraulic oil that does not meet the requirements of the specification. (3) The dump truck power take-off should be checked frequently, and the meshing and separation of the gear pump is normal, so as to avoid the accidental lifting caused by the separation. Under working conditions, you should also pay attention to whether the vehicle has abnormal phenomena such as abnormal noise or high temperature. If necessary, remove it in time to avoid premature damage such as power take-off, gear pump and valve. (4) When overhauling the dump truck, check the working surface of the piston rod of the hydraulic cylinder to see if there is any injury or scratching. If it is repaired or replaced in time, the hydraulic cylinder performance will be significantly reduced. (5) Regularly check whether the rear panel locking mechanism of the dump truck is reliable, and adjust to a reasonable automatic opening and closing angle to prevent accidents when the rear panel is accidentally opened or lifted, causing an accident; When unloading large pieces of material, the rear panel should be removed to avoid damaging the rear panel.
For the maintenance and maintenance of dump trucks, we must pay attention to the following points: (1) The high-pressure hose of the dump truck must be replaced every two years. If the hose is found to be damaged or partially expanded, it should be replaced in time; (2) It should be checked frequently whether the dump truck dumping mechanism has air leakage and oil leakage. When filling the hydraulic oil, check whether the filter installed at the fuel filler is damaged and replace if necessary to avoid the intrusion of impurities and accelerate the wear or damage of the hydraulic components. It is forbidden to mix and use hydraulic oil of different grades and add hydraulic oil that does not meet the requirements of the specification. (3) The dump truck power take-off should be checked frequently, and the meshing and separation of the gear pump is normal, so as to avoid the accidental lifting caused by the separation. Under working conditions, you should also pay attention to whether the vehicle has abnormal phenomena such as abnormal noise or high temperature. If necessary, remove it in time to avoid premature damage such as power take-off, gear pump and valve. (4) When overhauling the dump truck, check the working surface of the piston rod of the hydraulic cylinder to see if there is any injury or scratching. If it is repaired or replaced in time, the hydraulic cylinder performance will be significantly reduced. (5) Regularly check whether the rear panel locking mechanism of the dump truck is reliable, and adjust to a reasonable automatic opening and closing angle to prevent accidents when the rear panel is accidentally opened or lifted, causing an accident; When unloading large pieces of material, the rear panel should be removed to avoid damaging the rear panel.
