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...
Troubleshooting
Troubleshooting
Hydraulic Cylinder Moving Slowly: Causes & Troubleshooting
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 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...
Hydraulic Cylinder Losing Force: Causes & Troubleshooting
When a hydraulic cylinder cannot develop or hold the expected load, separate pressure supply problems from cylinder internal bypass, control-valve leakage, excessive load demand,...
Hydraulic Cylinder Leaking: Causes & Troubleshooting
Hydraulic cylinder leakage is best diagnosed by where hydraulic fluid appears and when it appears. Oil at the rod or gland points toward the...
