Case IH MC25057 Guide D'utilisation page 5

TROUBLESHOOTING
Symptom
Jack will not lift load
Jack will lift, but not maintain
pressure
Jack will not lower after unloading
Poor lift performance
Will not lift to full extension
Possible Causes
• Release valve not tightly closed
• Load is too heavy
• Release valve not tightly closed
• Hydraulic unit malfunction
• Reservoir overfilled
• Linkages binding
• Fluid level low
• Fluid level low
• Air trapped in system
• Fluid level low
5
Corrective Action
• Ensure release valve tightly closed
• Consider higher capacity jack
• Ensure release valve tightly closed
• Discontinue use, contact technical
service
• Drain fluid to proper level
• Clean and lubricate moving parts
• Ensure proper fluid level
• Ensure proper fluid level
• With ram fully retracted, remove oil
filler vent screw to let pressurized
air escape, reinstall oil filler vent
screw
• Ensure proper fluid level