1： The insufficient oil supply of large concrete mixer leads to low output speed and torque
Solution: if the filter at the oil suction port of the oil supply hydraulic pump is blocked, the oil filter can be cleaned; if the oil drill is too large, the suitable oil can be replaced; if the axial or radial clearance is too large, the stator or other relevant parts should be ground to make the axial clearance meet the requirements.
2： The output speed and torque of hydraulic motor of large-scale concrete mixer is low due to improper power or speed of prime mover
Solution: if the prime mover power does not match, the prime mover needs to be replaced to match the power of the hydraulic pump; if the prime mover speed is lower than the rated speed, the prime mover with the rotational speed meeting the requirements can be selected.
3： The joints of large-scale concrete mixer are not tightly sealed and air is mixed in
Solution: check and tighten the joints to improve the sealing performance.
4： The working medium is polluted and the internal channel of hydraulic motor is blocked
Solution: disassemble, carefully clean and replace clean working medium.
5： The valve plate and blade of large concrete mixer are worn and the internal leakage is large
Solution: repair or replace the relevant parts.
6： Poor sealing of check valve in hydraulic system of large concrete mixer
Solution: repair the check valve seat or replace the relevant parts, so that the valve seat and steel ball are tightly closed.
7： Overflow valve failure in hydraulic system
Solution: repair or replace the relief valve.
I believe that read this article's automatic concrete mixer truck http://www.zkzdsljbc.com After the introduction, we will have our own understanding of this aspect and solve the problems in the future.