6
TROUBLESHOOTING
A system failure may or may not be the result of a pump malfunction. The following information is intended to be
used as an aid in determining if a problem exist.
Symptom
Possible Causes
Corrective Action
Erratic ram action
• Air in system or pump cavitation
• External leak
• Internal hydraulic leak
• Follow pump instructions for
bleeding air
• Tighten all connections
• Contact Service Center
Ram extends partially
•
Hydraulic oil level too low in pump
•
Load is above the capacity of
system
•
Ram is sticking or binding
•
Fill and bleed the system
•
Match the capacity to application
•
Contact Service Center
Ram moves slower than normal
• Loose connection or coupler
• Restricted hydraulic line or fitting
• Pump not working correctly
• Ram seals leaking
• Tighten connection or coupler
• Clean and replace if damaged
• Check pump operating instructions
• Replace cylinder
Ram leaks hydraulic fluid
• Worn or damaged seals
• Contact Service Center
Ram will not retract or retracts
slower than normal
• Linkage binding
• Loose couplers
• Malfunctioning coupler
• Weak or broken retraction springs
• Ram damaged internally
• Pump reservoir too full
• Lubricate all moving parts
• Tighten couplers
• Depressurize pump and hose,
remove application, then replace a
new coupler
• Contact Service Center
• Contact Service Center
• Drain hydraulic fluid to correct level
Pump or ram fails to maintain
pressure
• Overload condition
• External leak
• Internal hydraulic leak
• Ram seals leaking
• Pump or valve malfunctioning
• Remedy overload condition
• Tighten all connections
• Contact Service Center
• Contact Service Center
• Check pump operating instructions
