Firstly, let's delve into the specifications of this pump. The ERR series is known for its high-pressure capabilities and efficiency.
It consists of a swashplate design with variable displacement, allowing for smooth and precise control of fluid flow. The displacement range typically varies from 28cc/rev to 90cc/rev, offering flexibility to accommodate different system requirements.
When repairing the Sauer Danfoss ERR series pump, it is essential to follow a systematic approach. Here are the general steps involved:
Disassembly: Begin by carefully disassembling the pump. Make sure to clean the pump exterior before disassembly to prevent dirt and debris from entering the internal components. Follow the manufacturer's guidelines to remove the pump cover, control housing, and other relevant parts.
Inspection: Thoroughly inspect all the disassembled components, including the pistons, cylinder block, valve plate, and swashplate. Look for signs of wear, damage, or any other abnormalities. If any parts are found to be faulty or worn out, they should be replaced with genuine Sauer Danfoss parts.
Cleaning: Clean all the components using an appropriate cleaning solution to remove any contaminants.
Ensure that the parts are completely dry before proceeding to the next step.
Reassembly: Assemble the pump in the reverse order of disassembly, following the manufacturer's instructions. Pay attention to proper alignment and torque specifications for all fasteners. Lubricate the necessary parts with recommended hydraulic oil or grease during reassembly.
Testing and Adjustment: Once the pump is reassembled, it is important to test its performance. Connect the pump to a hydraulic power source and run it at various speeds and pressures. Monitor the pump's output, noise level, and temperature to ensure it is functioning correctly. Adjust the swashplate angle if necessary to achieve the desired flow and pressure characteristics.
Final Checks: Conduct a final inspection to ensure that all connections, fittings, and seals are tight and leak-free. Verify that the pump meets the manufacturer's specifications and performance standards.