Hydraulic Troubleshooting: Do As I Say; Not As I Do!

The Hydraulic Troubleshooting HandbookIf you’ve read The Hydraulic Troubleshooting Handbook, you’ll recall that I define hydraulic troubleshooting as a logical process of elimination which begins with checking the easy things first.

The emphasis I put on investigating the easy things first may seem so elementary your inclination may be to disregard this advice. Certainly, if you DO follow a logical process of elimination, you will get a result – regardless of whether you check the easy things first or not. It’s just that if you leave anything that’s easy to check until last – you’ll kick yourself for not giving it your … continue reading »

How And Why To Monitor Hydraulic Filter Condition

Filter used on a filter cartContinuous monitoring of the filter elements in a hydraulic system can provide valuable clues to the performance of the filter and the condition of the system. But before discussing this, let’s consider some of the advantages and disadvantages of common filter locations in a hydraulic system.

Pressure filtration

Locating filtering media in the pressure line provides maximum protection for components located immediately downstream. Filtration rates of two microns or less are possible, due to the positive pressure available to force fluid through the media. Filter efficiency may be reduced by the presence of high flow velocities, and pressure and flow … continue reading »

How To Store Hydraulic Cylinders – Part II

BentRodIn 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 question:

“One issue I feel you left out of the cylinder storage issue is the orientation question. How should a hydraulic cylinder be orientated for short term or long term storage? Our company repairs and evaluates hydraulic cylinders and their associated failures. We try to provide solutions for breakdowns as well as repairing those that have failed. We evaluate and repair approximately 1000 cylinders annually.

One common issue has been seal failure particularly in continue reading »