Troubleshooting Chart; Attached Documentation Table - Enerpac SFP Serie Manual De Instrucciones

7.1 Troubleshooting chart

PROBLEM
Cylinder does not advance,
advances slowly or in spurts
Cylinder advances, but does not
hold pressure.
Cylinder does not retract
Wrong motor rotation direction
Alarm light switched on

8.0 ATTACHED DOCUMENTATION TABLE

In this manual other documents have been attached which are necessary to interpret this manual. In the next table
there is an index to facilitate finding these documents. Push on the paper icon
RESERVOIR SIZE
VALVES TYPE
PUMPS MODEL
Electric power:
B= 110/115V-1Ph
50/60Hz
J = 460V-3Ph-60Hz
W = 400V-3Ph-50Hz
ASSEMBLY
DRAWING
HYDRAULIC
SCHEME
SPARE PARTS
CE DECLARATION
POSSIBLE CAUSE
A. Oil level in pump reservoir is low.
B. Release valve open.
C. Loose hydraulic coupler.
D. Air trapped in system.
E. Cylinder plunger binding
A. Leaking oil connection.
B. Leaking seals.
C. Internal leakage in pump.
A. Pump reservoir overfilled.
B. Loose hydraulic coupler.
C. Air trapped in system.
D. Oil flow to cylinder blocked.
E. Hose internal diameter too narrow.
F. No load on a load return cylinder
A. The phase of the motor is wrong
A. Thermal overload protection device is
tripped.
B. DC protection device is tripped.
MANUAL VALVES
B /
J W
W
  
  

150 l. / 40 gal
SOLENOID VALVES
J




7
SOLUTION
A. Add oil to pump.
B. Close pump release valve.
C. Check that all couplers are fully
tightened.
D. Remove air.
E. Check for damage to cylinder. Have
cylinder serviced by an authorized
Enerpac service center
A. Check that all connections are
tightened.
B. Locate leak(s) and have equipment
serviced by an Enerpac service center.
C. Have pump serviced by an authorized
Enerpac service center.
A. Drain oil level to full mark.
B. Check that coupler(s) are fully
tightened.
C. Remove air.
D. Check that coupler(s) are correctly
connected fully tightened and valving is
functioning properly.
E. Use a larger diameter hose.
F. CLL and CLS cylinders are load return.
Apply load force to completely retract the
cylinder
A change the phase of the motor
A. Open the electric cabinet and reset the
thermal overload protection device.
B. Open the electric cabinet and reset the
DC protection device. If problem persists,
have pump serviced by an authorized
Enerpac service center.

to open.
40 l / 10 gal
MAN. VALVES
W J W
  
  
SOLEN.
VALVES
J W
 
 
