Brendan Casey is a war-weary and battle-scarred veteran of the hydraulics industry. He's the author of The Hydraulic Troubleshooting Handbook, Insider Secrets to Hydraulics, Preventing Hydraulic Failures, The Definitive Guide to Hydraulic Troubleshooting, The Hydraulic Breakdown Prevention Blueprint and co-author of Hydraulics Made Easy and Advanced Hydraulic Control. And when he's not writing about hydraulics or teaching it, Brendan is flat-out helping consulting clients from a diverse range of industries solve their hydraulic problems. To contact him visit his company's Website:

Posts by Brendan Casey

in Hydraulics At Work May 18, 2015

How To Connect A Forced Air Heat Exchanger

A connection issue for forced air heat exchangers, which requires attention during initial installation, relates to whether it is single or double....More
in Hydraulics At Work May 11, 2015

How To Size A Hydraulic Oil Cooler

As a means of power transmission, hydraulics has many advantages. But overall efficiency is NOT one of them. A single-reduction gearbox has an....More
in Hydraulics At Work May 04, 2015

A Problem With Hydraulics At High Altitude

At 3000 ft, air only has 90% of its sea level density. So a fixed-speed cooling fan will move the same volume of air but at only 90% of the mass. And....More
in Hydraulics At Work Apr 27, 2015

Predictive Hydraulics Maintenance 101

In the appendix of Reliability-Centered Maintenance II, John Moubray lists 102 proactive maintenance techniques in six categories. And new predictive....More
in Hydraulics At Work Apr 20, 2015

A BIG Troubleshooting Secret: Principles Before Methods

Ralph Waldo Emerson once said: "As to methods there may be a million and then some, but principles are few. The man who grasps principles can....More
in Hydraulics At Work Apr 14, 2015

The Hydraulic Maintenance Dilemma: Not Deciding Has Consequences

In the hydraulic maintenance biz, there are always decisions waiting to be made. What type of oil to use. A planned change-out to call. Which....More
in Hydraulics At Work Apr 06, 2015

From The Go-To Guy's Creed: Whatever It Takes

Back in 1991, the hydraulics company I was working for had supplied conversion kits to change the hydraulic piston pump on an ROV (remotely operated....More
in Hydraulics At Work Mar 30, 2015

The 2 Hydraulic Oil Sample Points That Matter

From a predictive maintenance perspective, there is little real benefit from taking an oil sample directly from the hydraulic tank....More
in Hydraulics At Work Mar 23, 2015

How To Size A Hydraulic Tank

The rules of thumb for reservoir size differ for open and closed circuits. For a conventional reservoir used in open circuits the general rule is a....More
in Hydraulics At Work Mar 16, 2015

How To Determine Hydraulic Pump Condition Using Volumetric Efficiency

In a condition-based maintenance environment, the decision to change-out the pump is usually based on remaining bearing life or deterioration in....More

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