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Overheating – how hot is too hot?

Overheating is one of the 2 most common causes of hydraulic system failure (the other is contamination). How hot is too hot? If the reservoir is so hot you can’t hold your hand on it, it’s probably too hot. 150°F is as hot as we recommend for the...

Keeping it Cool – what size Reservoir to use?

How to prevent overheating The usual method is by using a large enough reservoir. That does 2 things: it gives the oil time to rest and give off its heat. And the larger metal surfaces radiate more heat. How big a tank do I need? The rule of thumb is one...

Heat Exchangers

Heat Exchangers (Radiators) This is the other common way of dealing with excess heat. Heat exchangers are very effective: a small heat exchanger will dissipate as much heat as a large reservoir, but they are expensive and require a fan, usually electric. It’s...