“This system works by using a fan to draw air through a cooler, which cools hydraulic fluid as it passes through,” added Stachel. “The cooled oil is then recirculated back into the system to ...

The fully synthetic Biodegradable Hydraulic Oil 46 features a High Viscosity index with optimal oxidation stability. Reduces vane and gear pump wear, while providing protection even in severe ...

The downside is that the vacuum pump oil gets contaminated with water vapor, but that’s far easier and cheaper to replace that a couple hundred gallons of hydraulic oil. Never doubt the hacking ...