”This hydraulic motor is well used, why is it getting louder? I haven’t done anything yet?” Said Mr. Li who repaired the hydraulic motor. “The sound is too loud and noisy operators can’t work normally What should I do with the noise of the hydraulic motor? “Facing Mr. Li who was questioning, we only responded with a wry smile. There are many reasons for the noise of the hydraulic motor, and Ottos sorted out some common situations, as follows:

Hydraulic motor repair failure type

 Causes of high noise of hydraulic motor:

①The seal is not strict, and air invades inside

②The hydraulic oil is contaminated, there are people with bubbles

③The oil temperature is too high or too low

④The coaxiality of the coupling is out of tolerance

⑤ Excessive hydraulic oil drill

⑥ The radial size of the hydraulic motor is seriously worn

⑦The blade is worn

⑧Poor contact between the blade and the stator, there is a collision phenomenon

⑨ Stator wear

How to eliminate the noise of hydraulic motor:

①Check the seal of the relevant parts and tighten the connection points

②Replace clean hydraulic oil

③Check the working status of temperature control components

④Correction coaxiality

⑤ Change the oil with less cat degree

⑥ Grinding cylinder hole, readjusting plunger

⑦ Repair or replace as much as possible

⑧ Perform trimming

⑨ Repair or replace. If the abrasion is increased due to excessive spring rigidity, the spring with lower rigidity