Troubleshooting
SHB 3 | Version 1.02
15
12 Troubleshooting
DANGER!
If one of the following errors occurs, stop working
with the lift immediately. Serious injury could result.
All repairs or replacements must only be carried out
by qualified and trained personnel.
Fault
Possible cause
Remedy
Engine does not run and the plat-
forms are not lifted
1.Motor is defective
2.Fuse is defective
3.The wire connection is loose
1.Replace the motor
2.Replace the fuse
3.Check connection
Engine runs but the platforms are not
lifted
1.Wrong direction of motor rotation
2.Low oil level
3.The safety valve is damaged
4.The oil hose is loose
1.Change direction of rotation
2.Check the oil level and top up if
necessary
3.Check valve and replace if neces-
sary.
4. Check oil hose and tighten if
necessary.
Increase too slow
1.Low oil level.
2.The pressure relief valve is not
correctly adjusted .
3.Load to be lifted too heavy .
4. Oil filter is clogged .
5. Cylinder seal is defective .
1.Check oil level and top up if neces-
sary.
2.Adjust the valve.
3.Reduce load.
4.Clean or replace oil filter.
5.Replace seal.
Platforms move down slowly after lif-
ting
1.Hydraulic hose leaking.
2.Valve is leaking.
3.Hydraulic cylinder is leaking.
4.Leaks in the pressure relief valve
1.Replace the hydraulic hose.
2.Clean or replace the valve.
3.Replace the seal.
4.Clean or replace the valve.
Lowering too slowly
1.Hydraulic oil dirty.
2.The oil hose has jammed
3.The drain valve is blocked too
much.
1.Change the hydraulic oil.
2.Clean the oil hose and replace if
necessary.
3.Open the valve further.
Safety interlock does not open
1.The air pressure regulating valve is
closed or too low
2.The solenoid valve is damaged.
1. Set the air pressure to 5kg/cm2
2. Replace the solenoid valve.
