Michelin Hydraulic-Jack - Troubleshooting Guide; Jack Not Lifting Load; Jack Bleeds Off After Lift; Jack Not Lowering or Poor Performance

6
EN
TROUBLE SHOOTING
Symptom Possible Causes Corrective Action
Jack will not lift load • Releasevalvenottightly
closed
• Overloadcondition
• Ensurereleasevalveis
tightly closed
• Remedyoverload
condition
Jack bleeds off after lift • Releasevalvenottightly
closed
• Overloadcondition
• Hydraulicunit
malfunction
• Ensurereleasevalveis
tightly closed
• Remedyoverload
condition
• ContactCustomerSupport
Jack will not lower after
unloading
• Linkagesbinding • Cleanandlubricate
moving parts
Poor lift performance • Fluidlevellow
• Airtrappedinsystem
• Ensureproperuidlevel
to be checked by specialist
Will not lift to full extension • Fluidlevellow • Ensureproperuidlevel
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