Enerpac ECM-Series - Manual (Page 4)

4
PROBLEM
Clamp does not
advance/retract.
Clamp advances
part way only.
Clamp advances/
retracts slower
than normal.
Clamp advances /
retracts but does
not hold pressure.
Clamp leaks oil.
No Pull-down
effect
SOLUTION
1. Check control.
2. Fill reservoir with Enerpac Hydraulic Fluid.
3. Remove air from hydraulic system.
4. Tighten all couplers.
5. Check valves, fittings, and tubes.
6. Replace with Enerpac spring.
1. Fill Reservoir with Enerpac hydraulic oil.
2. Remove air from hydraulic system.
1. Connections, couplers, and tubes must be
mounted again.
2. Check valves, fittings, and tubes.
3. Perform maintenance on pump.
1. Replace with Enerpac seals.
2. Check valves, fittings, and tubes.
3. Perform maintenance on pump.
1. Broken parts must be replaced.
2. Replace with Enerpac Seals
1. Clean rubber spring area and repair slide
surfaces. See Maintenance section above.
2. Clean rubber spring area and repair slide
surfaces. See Maintenance section above.
POSSIBLE CAUSE
1. Valve is not switched
correctly
2. Oil level in the reservoir
is too low.
3. Air trapped in system.
4. Loose coupler.
5. No pressure is built up.
6. Cylinder spring is broken.
1. Oil level is too low.
2. Air trapped in system.
1. Leaking connection.
2. Reduced Hydraulic circuit.
3. Malfunction of the pump.
1. Defective seals.
2. Leaking connections.
3. Malfunction of the pump.
1. Defective piston.
2. Defective seals.
1. Contaminated rubber
spring area.
2. Damaged slide surfaces.
TROUBLESHOOTING
5.0 OPERATION
Loading parts on the upper “1/8” of an inch of
jaw only, may result in substantially reduced
service life.
6.0 MAINTENANCE / REPLACING
CLAMPING JAWS
1. Loosen the retaining bolt at the front of the
clamp or the counter-hold and remove it.
2. Take out the clamping jaw.
3. Clean the rubber spring area. If necessary,
tighten the rubber spring with a pipe wrench.
4. Check the slide surfaces of the clamping jaw
and the clamping bolt and repair any damage.
5. Fasten the clamping jaws with screws.
6. Replace mounting bolt and tighten securely.