FAULT HUNTER / 05
Cylinder drifts under load
LET US START WITH THE EXPERT
A descending load is not a minor detail. Secure the load first.
Now continue with technical diagnosis using safe observations.Loading diagnostic path…
Other possible causes and technical explanations
Possible causes to examine for this symptom
These causes are preliminary assessments. The same symptom can have different causes in different circuits.
An external leak is present; first examine connection and seal damage.
How to check: Support the load safely with mechanical means. Observe external leakage only from a safe distance. A qualified technician must test cylinder and load-holding-valve internal leakage separately.
Possible solution: Repair confirmed external or internal leaks using appropriate seals or valve repairs. Qualified personnel must verify load holding in a controlled test after repair.
Open the related lesson →Internal leakage in the cylinder or load-holding valve is possible in neutral.
How to check: Support the load safely with mechanical means. Observe external leakage only from a safe distance. A qualified technician must test cylinder and load-holding-valve internal leakage separately.
Possible solution: Repair confirmed external or internal leaks using appropriate seals or valve repairs. Qualified personnel must verify load holding in a controlled test after repair.
Open the related lesson →Examine external leakage together with control and circuit behaviour.
How to check: Support the load safely with mechanical means. Observe external leakage only from a safe distance. A qualified technician must test cylinder and load-holding-valve internal leakage separately.
Possible solution: Repair confirmed external or internal leaks using appropriate seals or valve repairs. Qualified personnel must verify load holding in a controlled test after repair.
Open the related lesson →Examine the valve command, centre configuration and cylinder internal leakage.
How to check: Support the load safely with mechanical means. Observe external leakage only from a safe distance. A qualified technician must test cylinder and load-holding-valve internal leakage separately.
Possible solution: Repair confirmed external or internal leaks using appropriate seals or valve repairs. Qualified personnel must verify load holding in a controlled test after repair.
Open the related lesson →