Idiomas disponibles
Idiomas disponibles
6 MONTHS:
• Drain and discard hydraulic fluid.
• Check all screw and bolt connections for tightness.
PROBLEM
Platform will not raise
(pump running).
Platform will not
remain elevated.
Platform will not
lower.
Platform lowers too
slowly.
Cylinder(s) leaking.
Pump leaking.
Bouncing platform.
If the troubleshooting section does not resolve your problem, contact Uline Customer Service at 1-800-295-5510.
PAGE 5 OF 17
MAINTENANCE CONTINUED
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 scissor lift 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.
1-800-295-5510
1 YEAR:
• Check all parts for wear and replace defective parts
as necessary.
• Drain and replace hydraulic fluid.
• Check readability of labels and safety warnings;
replace if needed.
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.
uline.com
RECOMMENDATIONS
0323 IH-10646
