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“Sauer Danfoss hydraulic pumps are widely used in various applications due to their efficiency and reliability. To ensure that these pumps perform optimally and have a long service life, regular maintenance is essential. Here’s a guide on how to perform routine maintenance on Sauer Danfoss hydraulic pumps.
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Safety First

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Before starting any maintenance work, it is crucial to prioritize safety. Ensure that the pump is turned off and depressurized. Disconnect power sources and follow lockout/tagout procedures to prevent accidental startup. Wear appropriate personal protective equipment (PPE) such as gloves and safety goggles.
Inspection and Cleaning
Begin with a thorough visual inspection of the pump and surrounding areas. Look for leaks, signs of wear, or damage. Check hoses and fittings for cracks or deterioration. Use a cloth or brush to clean the exterior of the pump, removing any dirt, dust, and debris that may have accumulated. This not only improves the appearance but also helps in identifying any leaks or issues.
Fluid Level Check
Check the hydraulic fluid level in the reservoir. Ensure that it is at the recommended level according to the manufacturer’s specifications. If the fluid is low, top it up with the appropriate hydraulic fluid. Always use the type of fluid recommended by Sauer Danfoss to maintain the pump’s efficiency and prevent damage.
Filter Maintenance
The hydraulic system typically has filters to prevent contaminants from entering the pumps. Inspect the filters regularly and replace them as necessary. Clogged filters can lead to poor performance and potential damage to the pump. Follow the manufacturer’s guidelines for when and how to replace filters.
Fluid Quality Assessment”