7
Troubleshooting Guide
Problem
Possible Cause
Action
Pump will not start when “ON/ADV”
button is depressed
No power
Connect power
Pump on-off switch in “OFF” position
Move switch to “ON” position
Circuit breaker tripped
Push circuit breaker button
Low voltage
Turn off other electric loads
Use heavier gauge extension cord
Motor brushes worn to end of life
See Section 6.3, Motor Brush Replacement
Pendant damage
Repair pendant
See authorized service center
Motor stops under load
Low voltage
Turn off other electric loads
Use heavier gauge extension cord
Electric valve will not operate
No power to pump or wrong voltage
Connect to correct power source per pump
nameplate
Solenoid cable disconnected or damaged
Connect, repair, or replace cable
Solenoid coil not operational
See authorized service center
Valve out of adjustment
See authorized service center
Pump fails to build pressure or less
than full pressure
Low oil level
Add oil per section 4.4
Relief valve set too low
Adjust per section 5.7
External system leak
Inspect and repair or replace
Internal leak in pump
See authorized service center
Internal leak in valve
Internal leak in system component
Pump builds full pressure, but torque
wrench does not advance
Torque greater than wrench capacity at full pressure
Use torque wrench with larger capacity
Advance fl ow to wrench restricted or blocked
Check couplers for full engagement per section 4.5
Torque wrench will not retract
Return fl ow line restricted or blocked
Check couplers for full engagement
Run motor when retracting
Valve malfunction
See authorized service center
Pressure trapped in hoses after
pump motor stops
Pressure not relieved
Relieve pressure per section 5.4
Pump runs hot
Advance or retract fl ow restricted
Check couplers for full engagement per section 4.5
High ambient temperature
Install heat exchanger
Содержание 76501-02000
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Страница 2: ...Pump AV Tool Operator Guide Original Instruction Enerpac PRO Series Pump Hydraulic Power Unit...
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Страница 49: ...6 LEFT BLANK INTENTIONALLY...
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