How to identify worn or leaking hydraulic cylinders early

Alan

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If your loader seems a bit droopy after sitting overnight, you might be wondering whether the cylinder seals are on their way out or if it’s just a normal occurrence. So, what early warning signs should you keep an eye out for to spot cylinder wear before it escalates into a costly rebuild?
 
It’s normal for the drift to slow down overnight. However, a significant drop in just an hour suggests the seals might be failing. When you extend the rod, check for any shiny vertical lines, if you see them, it means dirt is damaging the seal, and it might give out soon. Catching it early can save you some cash.
 
Keep an eye out for any hydraulic fluid weeping around the rod seal.
It may start as a tiny spot, but it can quickly escalate. Once you notice fluid,
it’s only a matter of time before you face a major leak that’ll need a rebuild.
 
Lift the loader, turn it off, and mark where it is. Check back after an hour. A couple of inches drop is fine, but if it’s resting on the ground, that’s an issue. Also, listen for any hissing while it's under pressure, that indicates internal bypassing, which isn't a good sign at all.
 
Clean the rod thoroughly and give it a few turns, then check for any new oil streaks. If you see sudden streaks on the rod, it’s a sign that the seal might be damaged. Additionally, run your fingers along the rod to feel for any notches or rough areas, damaged rods can ruin seals quickly.
 

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