Most Recent Blog Posts

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
Apr 11, 2016

How NOT To Go Down The WRONG Rabbit Hole When Hydraulic Troubleshooting

If you'd like a little challenge, take a moment to consider the problem described below and jot down how would proceed, and why....More
Apr 04, 2016

How To Deal With Air In Hydraulic Oil

Contaminants of hydraulic oil are broadly defined as any substance that impairs the proper functioning of the fluid. Air fits this definition and....More
Mar 28, 2016

The Trouble With Hydraulics Troubleshooting

Hydraulics system knowledge is a great advantage when troubleshooting. But without a reliable process, it's very easy for the troubleshooting effort....More
Mar 21, 2016

The One Type Of Hydraulic System You Do Not Want!

With hydraulics, like most other things, you get what you pay for. Design on price alone (especially if you don't know what you're doing) and you'll....More
What's Hydraulics At Work?

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

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