The hydraulic pump on a loading dock leveller ramp is a critical component used to raise and lower the loading platform to trucks. If the hydraulic pump fails, it can significantly impact your business’s productivity and ultimately the bottom line. It is important to know the potential causes of pressure loss in the hydraulic pump to prevent possible failures in the future.
How to avoid pressure loss in the hydraulic pump of a dock leveller
Loading dock levelers are essential for safe and efficient loading/unloading. Their hydraulic pumps are critical for platform leveling. Maintaining proper hydraulic pressure is key to preventing operational delays. This document outlines potential causes of pressure loss and preventative measures
It is important to ensure that the hydraulic pump on your loading ramp is working properly, as pressure loss can cause problems and delays in the loading and unloading process. In this article, we will discuss the possible causes of pressure loss in the hydraulic pump of your levelling ramp and how to avoid them.
Possible causes of hydraulic pressure loss
The hydraulic pump of your levelling ramp can lose pressure due to various reasons, such as:
- The pump shaft is turning in the wrong direction.
- The pump’s relief valve or compensator is damaged.
- The relief valve has low pressure due to incorrect settings, dirt or debris, damaged or worn caps, stuck valve piston, misaligned valve or damaged or worn springs.
- The relief valve has no pressure due to a blocked balance hole, loose setting, valve stuck in the body, worn or broken spring, dirt or debris keeping the valve partially open or worn or damaged valve cap.
- The pressure reducing valves have erratic pressure due to dirt in the oil, blocked or restricted balance hole, worn valve cap, drain line not opening to a tank, non-square spring ends, wrong spring, valve needing adjustment, fatigued spring or damaged or worn piston orifice.
How to avoid pressure loss
To avoid pressure loss in the hydraulic pump of your levelling ramp, it is recommended to take the following actions:
- Correct installation and rotation: Ensure the hydraulic pump is correctly installed and the shaft rotates in the correct direction.
- Regular testing: Regularly test the hydraulic pump, checking temperature, flow rate, drive motor current, and ensuring the compensator pressure exceeds the maximum load pressure.Verify that the hydraulic pump is installed correctly and the shaft is turning in the correct direction.
- Perform regular tests on the hydraulic pump to check its temperature, flow rate, current in the drive motor and ensure that the compensator is above the maximum load pressure.
- Perform regular maintenance on the relief and pressure reducing valves, inspecting and cleaning the parts, replacing any damaged springs and caps and adjusting the valves as needed.
- Use clean, high-quality hydraulic oil to reduce the possibility of a breakdown.
In summary, pressure loss in the hydraulic unit of a loading dock leveller ramp can be a frustrating problem that negatively affects the efficiency of logistics operations. It is important to perform regular tests and maintenance on the pump to prevent problems and, if they occur, to solve them effectively.
If you need help with your loading dock maintenance needs, do not hesitate to contact us, we have all the spare parts.
