H-3934, H-3935
ELECTRIC LIFT TABLE
OPERATING ISSUE
Forks will not raise
(pump running)
Platform will not remain
elevated
Platform will not lower
Platform lowers too slowly
Cylinder(s) leaking
Pump leaking
Spongy platform
PAGE 1 OF 3
1-800-295-5510
uline.com
TROUBLESHOOTING
CAUSES
No hydraulic fluid in reservoir.
Load too heavy (relief valve operating.
Lowering valve held open.
Lower valve held open.
Pump check valve not seated.
Platform or scissors obstruction.
Lowering valve not opening.
Obstruction in flow limiting valve.
Lowering valve not opening completely.
Obstruction in flow limiting valve(s).
Cylinder seals worn or damaged.
Valves, fitting or hoses loose.
Reservoir overfilled with oil.
Hose or fitting loose.
Air in hydraulic circuit.
Para Español, vea página 2.
Pour le français, consulter la page 3.
RECOMMENDATIONS
Fill reservoir.
Reduce load.
Check lower control for malfunction.
Clean and/or replace lowering
solenoid.
Check lower control for malfunction.
Clean and/or replace lowering
solenoid.
Clean/repair/replace valve.
Flush outlet check.
Remove obstruction or reposition lift.
Clean and/or replace lowering
solenoid.
Flush flow limiting valves.
Clean and/or replace lowering
solenoid.
Flush flow limiting valve(s).
Repack cylinder(s).
Tighten valves, fittings or hoses.
Drain excess fluid.
Tighten fittings or hoses.
Raise and lower platform several times
to remove air and check fluid level.
0221 TH-3934