If your excavator is newly purchased but runs slowly during operation, it is likely that the hydraulic oil is insufficient. But excavators have been in use for many years, and if they run slowly, it is necessary to consider whether the excavator parts are worn or damaged. Overall, there are four key points to consider.
1. Insufficient hydraulic oil or deterioration of hydraulic oil results in slow and weak movements, which is generally due to the excavator not being maintained for a long time.
2. If the pilot pressure is too low, if the pilot pump is damaged or the pilot filter element is blocked, it will directly lead to insufficient pilot pressure, causing the control oil circuit of the handle or foot valve to be unable to control the distribution valve stem to fully open, resulting in all actions being slow and weak.
3. The main overflow valve is worn, which is a common situation. The main overflow valve controls the main overflow pressure of the entire vehicle. Once worn or jammed, all actions of the entire vehicle will be affected.
4. The wear of the hydraulic pump plunger not only leads to slow and weak operation of the entire vehicle, but also causes high temperature of the hydraulic oil, and even copper foam impurities are found when checking the return oil filter element. At this time, no matter how to adjust the power of the hydraulic pump, there is no effect.
As a type of mechanical equipment, it is common for excavators to experience component aging. The slow operation of excavators is a common fault situation, and troubleshooting the above four points can solve the problem. If you need to purchase excavator parts, Racer Machinery can provide genuine excavator parts.
