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Enerpac provides the largest selection of high-pressure hydraulic cylinders and rams, fully supported and available through the most extensive network of distributors worldwide. We have a solution for virtually any application – lifting, pushing, pulling, bending, or holding – in most industrial and commercial work environments. Enerpac cylinders are offered in hundreds of different configurations.
Q. What if my cylinder does not advance, advances slowly or advances in spurts?
A. There are multiple reasons this could happen so you will have to check on a couple things first make sure your oil level in your pumps reservoir is to the proper level. Check that your release valve is closed. Double check that your couplers on all connection points are tight and not leaking. Make sure that your not trying to lift anything above your cylinders tonnage rating. You may have air trapped in your system reference your instructions on proper air bleeding. Check for damage to the cylinder because your plunger could be binding which will need to be serviced by a qualified hydraulic technician or possibly replaced.
Q. Cylinder is advancing but does not hold pressure?
A. It may be a leaking connection so check that all your connections are tight and leak free. Its possible that you have a internal leak in the pump that you would need to have serviced by a qualified hydraulic technician. Check seals to see if you have any external leaks and if you find one you can get your equipment serviced by a qualified hydraulic technician.
Q. Cylinder is leaking oil?
A. Check that all your connections are fully tightened. The cylinder may have internal damage, worn or damaged seals which you could have a serviced by a qualified hydraulic technician.
Q. My cylinder does not retract, only retracts part way or retracts more slowly then normal?
A. First check that your release valve is open. Make sure that your pump reservoir is not over-filled and if it is drain oil level to the full mark. Check that all your hydraulic couplers are fully tightened. It is possible that you have air trapped in your system follow your instructions on bleeding air from your system. Your hose inside diameter could be too narrow for the system that you are using. It could be that you have a broken retraction spring or other damage to your cylinder which will need to be serviced by a qualified hydraulic technician.
Q. Oil is leaking from external relief vavle?
A. Check that all your connections are fully tightened. There could be a restriction in the return line.