Several things can prevent a hydraulic cylinder from retracting properly. Knowing what to look for and how to avoid future problems can save time diagnosing issues and help you demolish downtime. Further, if you need any help with hydraulic cylinders, you can get in touch with our hydraulic cylinders manufacturing company in Bangalore.
1. WORN OR DAMAGED PISTON SEALS
Seals naturally wear over time but failing to replace them causes fluid leaks. Having insufficient hydraulic fluid in your system causes cylinders to become hydraulically locked and unable to fully retract or extend. Worn seals can also cause misalignment issues between the seal and cylinder rod, which may cause trouble when retracting hydraulic cylinders.
2. HYDRAULIC CYLINDERS RETRACTING UNDER LOAD
Sometimes hydraulic cylinders retract when they shouldn’t—an issue known as hydraulic cylinder drift. This problem is caused by internal fluid leaks and is characterized by hydraulic cylinders slowly retracting while under load. While not as serious in light-duty applications, a retracting hydraulic cylinder under heavy loads can cause major equipment damage and endanger the lives of anyone nearby.
3. BENT OR DENTED CYLINDER ROD OR BARREL
Cylinder rods and barrels can become dented from impact by heavy objects or machinery. Denting can occur if you try to lift a heavier load than what your cylinder is rated to handle. Any deformation of the rod and barrel prevents the cylinder from stroking correctly, which can prevent cylinders from fully retracting.