Enerpac VLP 10 ton - Manual (Page 3)

3
Figure 1, 10-ton VLP
Trouble-shooting Guide
Problem Possible Cause Solution
Cylinder does not advance,
advances slowly or in
spurts
Cylinder advances, but
does not hold pressure
Cylinder does not retract,
retracts part way or
retracts more slowly than
normal
1. Oil level in pump reservoir is low
2. Release valve is open
3. Loose hydraulic coupler
4. Air trapped in system
5. Cylinder plunger binding
1. Leaking oil connection
2. Leaking seals
3. Internal leakage in pump
1. Release valve closed
2. Pump reservoir over filled
3. Loose hydraulic coupler
4. Air trapped in system
5. Cylinder retraction spring broken or
other cylinder damage
6. Additional tooling on cylinder too heavy
1. Add oil to pump
2. Close pump release valve
3. Check that all couplers are fully tightened
4. Remove air according to Section 4.2 Air Removal
5. Check for damage to cylinder. Have cylinder
serviced by a qualified hydraulic technician
1. Check that all connections are tightened
2. Locate leak(s) and have equipment serviced by
a qualified hydraulic technician
3. Have pump serviced by a qualified hydraulic
technician
1. Open pump release valve
2. Drain oil level to full mark
3. Check that coupler(s) are fully tightened
4. Remove air according to §4.2 Air Removal
5. Have cylinder serviced by a qualified hydraulic
technician
6. Remove tooling, check cylinder for damage
6” Fully Extended Plunger
(4) holes
1 RC106 Cylinder
2 P142 Pump
PATG1102N Pump (European only)
3 GA4 Gauge Adaptor
4 HC9206 Hose
HC7206 Hose (European only)
Repair Parts List for VLP106
Item Part Number Description Item Part Number Description