If your concrete hydraulic pump isn't pumping, there are steps you can take to diagnose and fix the problem. Here are some things to consider: Check the hydraulic fluid level: a low fluid level can cause the pump to malfunction. Make sure the fluid level is within the recommended range. Check for blockages: A blockage in the pump or pipes can prevent the concrete from flowing properly. Check the pump and piping for any blockages and clear if necessary. Check the pressure: A drop in pressure may indicate a problem with the pump. Use a pressure gauge to measure the pressure and make sure it is within the recommended range. Check the filter: A dirty or clogged filter will reduce pump performance. Check the filters and replace or clean them as needed. Check the hoses: A leaky or damaged hose can reduce the pump's ability to deliver concrete. Check the hoses and replace any leaking or damaged hoses. Check the mechanical parts of the pump: Worn or damaged pump parts can cause the pump to malfunction. Check the pump's mechanical components, such as pistons, valves, and seals, and replace any worn or damaged parts. 90-L-075-HF-1-BC-60-R-3-S1-D-03-GBA-32-32-24 90L075HF1BC60R3S1D03GBA323224 90-L-075-HF-1-BC-60-R-3-S1-E-04-GBA-35-35-24 90L075HF1BC60R3S1E04GBA353524 90-L-075-HF-1-BC-60-R-3-S1-E-04-GBA-38-38-24 90L075HF1BC60R3S1E04GBA383824 90-L-075-HF-1-BC-80-P-3-S1-C-02-GBA-38-38-24 90L075HF1BC80P3S1C02GBA383824 90-L-075-HF-1-BC-80-P-3-S1-D-02-GBA-38-38-24 90L075HF1BC80P3S1D02GBA383824 90-L-075-HF-1-BC-80-P-3-S1-D-03-GBA-32-32-22 90L075HF1BC80P3S1D03GBA323222 90-L-075-HF-1-BC-80-P-3-S1-D-03-GBA-35-35-24 90L075HF1BC80P3S1D03GBA353524 90-L-075-HF-1-BC-80-P-3-S1-D-03-GBA-38-38-24 90L075HF1BC80P3S1D03GBA383824 90-L-075-HF-1-BC-80-R-3-S1-D-00-GBA-35-35-24 90L075HF1BC80R3S1D00GBA353524 90-L-075-HF-1-BC-80-R-3-S1-D-03-GBA-35-35-20 90L075HF1BC80R3S1D03GBA353520 Consult a Professional: If you have checked all of the above and the pump is still not functioning properly, you may want to consult a professional hydraulic pump technician or the manufacturer's technical support team for further assistance. Always follow the manufacturer's recommended maintenance and operating procedures to help prevent pump failure and ensure optimal pump performance. Regular maintenance helps spot and fix potential problems before they become major problems. In addition to the steps above, there are a few other things you can try if your concrete hydraulic pump still isn't working: Increase engine speed: If the engine speed is too low, the pump may not be able to generate enough pressure to pump the concrete. Increasing engine speed may help resolve the problem. Adjust the pump stroke: If the pump stroke is too short, it may not be able to deliver enough concrete. Adjusting the stroke may help improve pump performance. Priming the pump: If the pump has been idle for a while, it may need to be primed to get it working properly again. Refer to the manufacturer's instructions for the correct start-up procedure. Adjust the mix: If the concrete mix used is too thick or too dry, the pump may have difficulty delivering it. Adjusting the mix may help improve pump performance. Check the concrete delivery system: If the concrete is not being delivered to the pump properly, it may not be pumping. Check the concrete delivery system and make any necessary repairs or adjustments. Overall, there are many different factors that can cause a concrete hydraulic pump to not pump properly. By following the manufacturer's recommended maintenance and operating procedures, inspecting the pump regularly, and addressing any problems promptly, you can help prevent pump failure and ensure optimal pump performance. If you are unable to resolve the problem yourself, do not hesitate to seek professional help. 90-L-075-HF-1-BC-60-R-3-S1-D-03-GBA-32-32-24 90L075HF1BC60R3S1D03GBA323224 90-L-075-HF-1-BC-60-R-3-S1-E-04-GBA-35-35-24 90L075HF1BC60R3S1E04GBA353524 90-L-075-HF-1-BC-60-R-3-S1-E-04-GBA-38-38-24 90L075HF1BC60R3S1E04GBA383824 90-L-075-HF-1-BC-80-P-3-S1-C-02-GBA-38-38-24 90L075HF1BC80P3S1C02GBA383824 90-L-075-HF-1-BC-80-P-3-S1-D-02-GBA-38-38-24 90L075HF1BC80P3S1D02GBA383824 90-L-075-HF-1-BC-80-P-3-S1-D-03-GBA-32-32-22 90L075HF1BC80P3S1D03GBA323222 90-L-075-HF-1-BC-80-P-3-S1-D-03-GBA-35-35-24 90L075HF1BC80P3S1D03GBA353524 90-L-075-HF-1-BC-80-P-3-S1-D-03-GBA-38-38-24 90L075HF1BC80P3S1D03GBA383824 90-L-075-HF-1-BC-80-R-3-S1-D-00-GBA-35-35-24 90L075HF1BC80R3S1D00GBA353524 90-L-075-HF-1-BC-80-R-3-S1-D-03-GBA-35-35-20 90L075HF1BC80R3S1D03GBA353520 In addition, it is important to ensure that the pump is operating within its recommended operating conditions. Factors such as ambient temperature, humidity, and altitude can affect pump performance. For example, if the ambient temperature is too high, it will cause the hydraulic oil to become thinner, reducing the ability of the pump to deliver concrete. It's also important to make sure the pump is being used with the proper size and type of hose and tubing. Using a hose or pipe that is too small or too long can cause the pump to struggle to deliver concrete, while using a hose or pipe that is too large can reduce the pressure and efficiency of the pump. In the end, it is important to ensure that the concrete used is of the proper quality and consistency. Using low-quality or inconsistent concrete will prevent the pump from pumping the concrete properly. In conclusion, if the concrete hydraulic pump is not pumping, there are several steps you can take to diagnose and resolve the problem, including checking the hydraulic fluid level, checking for blockages, checking the pressure, checking the filters and hoses, and consulting a professional if necessary . It is also important to ensure that the pump is operating within its recommended range of conditions, used with proper hose and piping, and with high quality and consistent concrete.