Troubleshooting
(7)
Problem
1. Cylinder will not advance
2. Cylinder advances partly
3. Cylinder advances in spurts
4. Cylinder advances slower than
normal
5. Cylinder advances but will not hold pressure
6. Cylinder leaks oil
7. Cylinder will not retract or retracts slower
than normal
Possible Cause
A. Pump release valve open
B. No
oil
in
pump
C. Air in hydraulic system
D. Couplers are not fully tightened
E. Blocked hydraulic line
A. Oil level in pump too low
B. Cylinder’s plunger binding
A. Air in hydraulic system
B. Cylinder’s plunger binding
A. Leaking
connection
B. Restricted hydraulic line
C. Loose coupler or fitting
A. Seals
leaking
B. Leaking
connection
C. Pump
malfunction
A. Worn or damaged plunger
B. Leaking or loose connection
C. Internal
leakage
A. Pump release closed
B. Coupler not fully closed
C. Blocked hydraulic line
D. Pump reservoir over-filled
E. Cylinder
damaged
Summary of Contents for Posi Lock EP-104
Page 44: ...2 2 44...
Page 45: ...7 10 0 3 0 4 1 40 15 T T 75 3 4 5 45...
Page 46: ...1 2 3 T 4 T 5 T 3 6 4 T 5 1 2 3 T 4 3 46...
Page 47: ...T 5 T 6 T 100 1 2 1 5 Hoist Oil Supply On Hoist Lower 47...
Page 48: ...3 Oil Supply Jaw Open On Jaw Control On 4 1 1 4 5 100 100 Extend On 100 Retract 1 2 3 48...
Page 49: ...4 2 1 2 5 1 2 3 4 5 6 7 A B C D E A B A B A B C A B C A B C A B C D E 49...
Page 51: ...51 NOTES...
