1 troubleshooting chart, 0 attached documentation table – Enerpac SFP-Series User Manual
Page 6
7.1 Troubleshooting chart
8.0 ATTACHED DOCUMENTATION TABLE
In this manual other documents have been attached which are necessary to interpret this manual. In the next table
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to show them.
PROBLEM
POSSIBLE CAUSE
SOLUTION
Cylinder does not advance,
advances slowly or in spurts
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. 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
Cylinder advances, but does not
hold pressure.
A. Leaking oil connection.
B. Leaking seals.
C. Internal leakage in pump.
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.
Cylinder does not retract
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. 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
Wrong motor rotation direction
A. The phase of the motor is wrong
A change the phase of the motor
Alarm light switched on
A. Thermic protection is down.
B. DC protection is down.
A. Open the electric cabinet and
switch up the thermic protection
B. Have pump serviced by an
authorized Enerpac service center.
150 L RESERVOIR
40 L RESERVOIR
MANUAL VALVES
SOLENOID VALVES
MAN. VALVES
SOLEN. VALVES
PUMP MODEL
SF
P2
2
8
M
W
SF
P2
4
2
M
W
SF
P4
0
9
M
W
SF
P4
1
4
M
W
SF
P4
2
1
M
W
SF
P2
2
8
SW
SF
P2
4
2
SW
SF
P4
0
9
SW
SF
P4
1
4
SW
SF
P4
2
1
SW
SF
P2
1
3
M
W
SF
P4
0
4
M
W
SF
P6
0
4
MW
SF
P2
1
3
SW
SF
P4
0
4
SW
SF
P6
0
4
SW
ASSEMBLY DRAWING
HYDRAULIC SCHEME
SPARE PARTS
CE DECLARATION
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