Most Recent Blog Posts

Jul 26, 2016

How And Why To Monitor Hydraulic Filter Condition

Continuous monitoring of the filter elements in a hydraulic system can provide valuable clues to the performance of the filter and the condition of....More
Jul 18, 2016

How To Store Hydraulic Cylinders - Part 2

In my previous post, I discussed the procedure I use when preparing hydraulic cylinders for storage. In response to it, one of our members posed this....More
Jul 11, 2016

How To Store Hydraulic Cylinders -- Safely

A question I get asked a lot by equipment owners, is the procedure for storing spare hydraulic cylinders for an extended period. So here's what I....More
Jul 04, 2016

Hydraulic Diagrams You Should Not Do Without

A picture is worth a thousands words. And so is an accurate hydraulic diagram. It can also be worth a lot of nickel. Consider the four main types of....More
Jun 27, 2016

How To Make Sense Of Case Drain Flow From A Hydrostatic transmission

"I tried one afternoon and evening to determine what was wrong with a hydrostatic transmission by monitoring case drain flow and was confused by the....More
Jun 20, 2016

Are You SURE Your Hydraulic Pump Is Broken?

"We have some problems with a Parker-Denison hydrostatic transmission pump P24S 2R1C 9A2. Oil temperature rises from 20 to 50 Celsius within 15-20....More
Jun 13, 2016

How To Select Hydraulic Connectors For Leak-Free Reliability

Hydraulic oil leaks are often considered to be an inherent characteristic of hydraulic machines. While this may have been true 30 years ago, advances....More
Jun 06, 2016

One Thing You Must Check The Next Time You Change A Hydraulic Hose

The hydraulic hose fabrication process - or more specifically - the hose cutting process introduces contamination. This comprises metal particles....More
May 30, 2016

How To Avoid Hydraulic Troubleshooting Mistakes

Troubleshooting hydraulic systems can be a complex exercise. It involves a lot of science and sometimes, a bit of art. Incorrect diagnosis prolongs....More
May 23, 2016

How To Reduce Noise Emission From Hydraulic Systems

The magnitude of noise radiation from an object is proportional to its area and inversely proportional to its mass. Reducing an object's surface area....More
May 16, 2016

How To Deal With Water In Hydraulic Oil

If you've worked with hydraulic equipment for any length of time, it's likely that you've come across a hydraulic system with cloudy oil. Oil becomes....More
May 09, 2016

How To Fix Water Hammer In Hydraulic Circuits

When a moving column of fluid hits a solid boundary - when a directional control valve closes suddenly for example, its velocity drops to zero and....More
May 02, 2016

Why You Should Record All Hydraulic Oil Top-Offs

A maintenance planner for a large coal mine, recently told me his mine purchased 447,000 liters of hydraulic oil last year. It's hard to believe....More
Apr 25, 2016

Hydraulic Component Repair Using Aftermarket or Non-Genuine Parts

The economics of proceeding with any hydraulic repair is ultimately dependent on the cost of the repair, relative to the cost of a new component. As....More
Apr 18, 2016

The Effect of Temperature On Static Hydraulic Pressure

In 'The Hydraulic Troubleshooting Handbook' I lay out a step-by-step SYSTEM for reliable and efficient troubleshooting. But there's another....More
What's Hydraulics At Work?

Brendan Casey is a war-weary and battle-scarred veteran of the hydraulics industry.

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