Why are the SUNWARD SWDE200B Drill joysticks not working and the hydraulic pump is noisy?
- KkellyjacksonAug 13, 2025
Several factors can cause this issue. It could be a hydraulic malfunction (in which case contact your local distributor). Alternatively, there might be air in the hydraulic system; check the oil intake pipes of the pump for any leakage. The hydraulic oil could be old, of poor quality, or the wrong type, requiring a change. Also, if the hydraulic oil temperature is too low, warm up the machine by running it at low speed.

