Deep Gouge in a Hydraulic Cylinder Rod: Polish, Rechrome, or Replace?
Repair Overview. Check for raised burrs, missing or lifting chrome, bending, cracks, and whether the damaged area passes through the rod seal. Then decide:...
Troubleshooting
Troubleshooting
How to Break Loose a Seized Hydraulic Cylinder Gland Nut Without Damaging the Threads
Removal Overview. Before applying breakaway torque, isolate and depressurize the cylinder, confirm the gland retention method, and engage the correct gland tool. Use penetrating...
Boom Drops in Neutral: Cylinder Leak or Control Valve?
Boom drift in neutral means the load-holding circuit is losing pressure. Confirm the drift, identify how the boom is held, then test the cylinder...
Hydraulic Cylinder Moving Slowly: Causes & Troubleshooting
Hydraulic cylinder speed is primarily controlled by flow relative to the actuator effective area. Slow movement can therefore come from insufficient pump flow, cold...
Hydraulic Cylinder Jerky or Sticking: Causes & Troubleshooting
Jerky, pulsating, or sticking cylinder motion can come from trapped air, unstable flow, stick-slip friction, cold or unsuitable fluid, contamination, excessive seal or guide...
Hydraulic Cylinder Won’t Extend or Retract: Causes & Troubleshooting
A cylinder that will not extend or retract should be diagnosed from the circuit outward: first confirm the actuator type and commanded direction, then...
