Always replace the filter if the unit has one, when changing the hydraulic fluid to ensure contaminants are removed. Foaming and Air Contamination A frequent issue with log splitter maintenance is foaming, which occurs when air is entrained in the hydraulic fluid.
Establishing a Log Splitter Hydraulic System Maintenance Schedule
To combat this, ensure the oil fill cap is secure and that there are no leaks in the system that might introduce air. Synthetic blends or fully synthetic fluids offer superior performance in extreme temperatures and longer drain intervals.
Understanding Hydraulic Fluid Viscosity Viscosity, often measured by the SAE or ISO grading scale, refers to the oil's resistance to flow and is the primary specification to consider when looking at hydraulic oil for log splitter applications. Selecting the correct hydraulic oil for a log splitter is the single most critical maintenance decision for ensuring peak performance and longevity.
Establishing a Log Splitter Hydraulic System Maintenance Schedule
Using the wrong grade or an incorrect viscosity can lead to sluggish operation, inefficient cycles, and premature failure of pumps and valves, turning a simple chore into a costly repair project. Look for oils specifically labeled as "anti-wear" or "AW" hydraulic oil, which contain zinc dialkyldithiophosphate (ZDDP) or similar compounds that create a protective layer on gears and pumps.
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