Enerpac SC-Series - Manual (Page 9)

TROUBLESHOOTING
The following information is intended to be used only as an aid in determining if a
problem exists. For repair service, contact your distributor or Authorized Enerpac
Service Center.
CLAMP ARM MACHINING SPECIFICATIONS (page 60)
See Pressure and Flow Rate on page 8 to correctly measure the arm length. To deter-
mine the maximum clamping force on the arm, refer to Operating Specifications —
Maximum Flow Rate Chart on page 2.
9
Problem Possible Cause Solution
1. Cylinder will not
clamp/unclamp.
A. Pump release valve open.
B. No oil in pump reservoir.
C. Air in system.
D. Spring broken in cylinder. A. Close pump release valve.
B. Fill pump reservoir.
C. Remove air from hydraulic system.
D. Replace spring.
2. Cylinder advances part way.
A. Oil level in pump too low.
B. Plunger binding. A. Fill pump reservoir.
B. Replace damaged parts
— refer to Repair Parts Sheet
3. Cylinder clamp/unclamps
slower than normal.
A. Restricted hydraulic line.
B. Pump malfunction. A. Check valves, fittings, and tubing.
B. Refer to pump Instruction Sheet
4. Cylinder clamps/unclamps
but will not hold pressure.
A. Seals damaged.
B. Pump malfunction.
A. Replace seals
— refer to Repair Parts Sheet
B. Refer to pump Instruction Sheet
5. Cylinder leaks oil.
A. Seals damaged.
B. Plunger worn or damaged.
A. Replace seals
— refer to Repair Parts Sheet
B. Replace damaged parts.
— refer to Repair Parts Sheet
6. Clamp arm does not make
swing movement.
A. Clamp arm loose.
B. Plunger damaged. A. Reposition and retighten clamp arm
B. Replace damaged parts
— refer to Repair Parts Sheet