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The Penalty of Making an Incorrect Assumption A mill maintenance technician who had some hydraulic training was badly injured in an accident at a sawmill. He was trying to remove a hydraulic cylinder from a production machine so he could replace the rod seal, which was leaking. The cylinder was mounted vertically, and its piston […]

When you install hydraulic cylinder onto a machine, how do you bleed air out of the cylinder? Do you repeatedly extend and retract the cylinder’s piston rod under no load, a technique commonly referred to as free travel? This common practice is unsafe, and you must be aware of and understand the safety problems inherent […]

At Rest Doesn’t Necessarily Mean Safe Those not properly trained to work on mobile hydraulic systems often assume that if a machine is not running, the hydraulic system can be worked safely. Some may even realize that even if a machine is shut down, it should not be worked on if it is still supporting […]