Enerpac CLP-Series - Manual (Page 3)

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5.1 advancing and retracting the cylinder
For complete operating instructions refer to the
instruction sheet included with each pump.
Power pumps
Shift the valve on the pump to the advance position
and run the pump to advance the cylinder. To retract
the cylinder, shift the valve to the retract position.
Clp cylinders are load return. Considerable load
force is required to completely retract the plunger.
5.2 air removal
advance and retract the cylinder several times
avoiding pressure build-up. air removal is complete
when the cylinder motion is smooth.
6.0 aPPLICatIonS
Clp cylinders can be used in applications such as
offshore jacking and lowering, module weighing,
skidding, lifting, positioning, supporting, foundation,
construction, shipbuilding, repair, transfer systems
and civil engineering.
7.0 maIntEnanCE and SERvICE
Maintenance is required when wear or leakage is
noticed. periodically inspect all components to detect
any problem requiring service and maintenance.
Enerpac offers ready-to-use spare parts kits for
repair and/or replacements. Contact Enerpac.
ImPoRtant: hydraulic equipment
must be serviced by a qualified hydraulic
technician. For repair service, contact
the authorized Enerpac Service Center
in your area.
• periodically inspect all components to detect
any problem requiring maintenance and service.
Replace damaged parts immediately.
• do not exceed oil temperature above 60˚C [140˚F].
• Keep all hydraulic components clean.
• periodically check the hydraulic system for loose
connections and leaks.
• Change hydraulic oil in your system as
recommended in the pump instruction sheet.
8.0 tRouBLESHootIng
only qualified hydraulic technicians
should service the pump and system
components. use the trouble-shooting
table below to determine if a problem
exists.
8.1 tRouBLESHootIng
1. Cylinder does not
advance, advances
slowly or in spurts.
problem
a. low oil level in pump reservoir
B. Release valve open.
C. loose hydraulic coupler.
d. air trapped in system.
E. Cylinder plunger binding.
possible cause
a. add oil to pump.
B. Close pump release valve.
C. Check that all couplers are fully tightened.
d. Remove air (see paragraph 5).
E. Check for damage to cylinder. have
cylinder serviced by an authorized Enerpac
service center.
2. 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.
3. Cylinder does not
retract, retracts part
way or retracts more
slowly than normal.
a. Release valve closed.
B. pump reservoir overfilled.
C. loose hydraulic coupler.
d. air trapped in system.
E. oil flow to cylinder blocked.
F. hose internal diameter too narrow.
G. no load on a load return cylinder.
a. open pump release valve.
B. drain oil level to full mark.
C. Check that coupler(s) are fully tightened.
d. Remove air (see paragraph 5).
E. Check that coupler(s) are correctly
connected and fully tightened and that valving
is functioning properly.
F. use a larger diameter hose.
G. Clp cylinders are load return. apply load
to completely retract the cylinder.
solution