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05
ELECTRIC PUMP TROUBLESHOOTING
PROBLEM
Motor Will Not Run
Motor Stalls Under Load
Erratic Cylinder
Operation
Pump Will Not Hold
Pressure
Pump Builds full
Pressure, But Load Does
Not Move
Single Acting Cylinder
Will Not Retract
Double Acting Cylinder
Will Not Retract
Pump Runs Hot
Pump Pressure Too High
EAGLE PRO INDUSTRIAL TOOLS, INC.
POSSIBLE CAUSE
1. No power or incorrect voltage
2. Damaged power cord
3. Tripped circuit breaker
4. Loose or faulty wiring
5. Defective On/Off Switch
6. Defective Motor
7. Overheated Motor
1. Low voltage
1. Air in system or pump cavitation
2. External fluid leak
3. Internal fluid leak
1. External fluid leak
2. Internal fluid leak
3. Pump or valve malfunction
1. Load greater than cylinder capacity 1. Reduce load, or select higher capacity cylinder
2. Flow to cylinder blocked
1. Cylinder return spring is damaged 1. Contact your local Authorized Eagle Pro Service Center
2. Valve is not open
3. Valve malfunction
4. Pump reservoir too full
5. No load on "Load Return" cylinder 5. Add load to cylinder
1. Return flow restricted or blocked
2. Valve is not open
3. Valve malfunction
1. Incorrect electrical connections
2. Hydraulic fluid level low
3. Pump running too long
4. Work environment too hot
1. Relief valve set too high
2. Relief valve malfunction
1. Check power supply and voltage
2. Contact your local Authorized Eagle Pro Service Center
3. Ensure electrical supply is adequate
4. Contact your local Authorized Eagle Pro Service Center
5. Contact your local Authorized Eagle Pro Service Center
6. Contact your local Authorized Eagle Pro Service Center
7. Wait for motor to cool before restarting
1. Ensure electrical supply is adequate
2. If using extension cord ensure correct size
1. Follow pump/cylinder instructions fro bleeding air
2. Ensure all connections are tight and properly sealed
3. Contact your local Authorized Eagle Pro Service Center
1. Ensure all connections are tight and properly sealed
2. Contact your local Authorized Eagle Pro Service Center
3. Contact your local Authorized Eagle Pro Service Center
2. Ensure couplers are properly connected
2. Ensure pump valve is opened correctly
3. Contact your local Authorized Eagle Pro Service Center
4. Drain hydraulic fluid to correct level
1. Ensure couplers are properly connected
2. Ensure pump valve is opened correctly
3. Contact your local Authorized Eagle Pro Service Center
1. Check power supply, voltage, and ensure extension
cord is correctly sized
2. Add hydraulic fluid
3. Wait for motor to cool before restarting
4. Remove from work site. Do not use equipment in
temperatures of 150°F (65°C) or higher
1. Contact your local Authorized Eagle Pro Service Center
2. Contact your local Authorized Eagle Pro Service Center
10
SOLUTION
FORM NO. E09005 REV. A.
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