Aging seals within the hydraulic cylinder.

Customer feedback say they could not see where is the leak and the cylinder can extend but cannot hold and will retract on its own.

We explained to the customer that internal seal could be broken.

Indeed, we dismantle the internal of the cylinders and we showed to the customer that the seals within have aged and cracked.

After repair, the cylinders are in good working condition for another X amount of years.