® Copyright ATH-Heinl GmbH & Co. KG, All rights reserved / Misprints and technical changes reserved / As of: 2020-10
Manufacturer ATH-Heinl GmbH & CO.KG
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Lowering Problems
Lifting platform does not lower
Safety catches do not respond
Check cable connection
Check electromagnets, replace if
necessary
Relieve the catches by lifting
Defective control relay
Check control relay
Obstruction under platform
Remove obstruction
Hose rupture protection
triggered
Lift the platform briefly and
press "DOWN" again
Lowering valve is not activated Check electrical connection
Defective lowering valve
solenoid
Replace solenoid
Defective lowering valve
Replace
Valve for lowering speed set
incorrectly
Set
If the errors cannot be rectified, lower the lifting platform with the emergency lowering
screw and contact our service team
Platform lowers too slowly or
jerkily
Contaminated lowering valve
Clean lowering valve
Valve for lowering speed set
incorrectly
Set
Lifting platform lowers by itself
Leaking hydraulic connections Retighten connections if
necessary
Leaking hydraulic lines
Replace hydraulic line
Leaking hydraulic cylinder
Replace and clean the seals of
the hydraulic system
Dirty or defective lowering
valve
Clean or replace the lowering
valve
Leaking check valve
Clean or replace
Other Problems
Lifting platform does not raise
or lower synchronously
Air in hydraulic circuit
Bleed the hydraulic circuit
Synchronising cables not tight
enough
Adjust the tension or the
synchronicity
Product shows (heavy) rust
damage
Damage or lack of corrosion
protection, possibly
maintenance
Remove rust, clean and restore
surface.
Abnormal motor volume
Dirty oil filter
Clean the oil filter
Air in hydraulic circuit
Bleed the hydraulic system
Contaminated hydraulic oil
Change the hydraulic oil
Circuit breaker has been
activated
Check the contact on the
contactor
Replace the contactor
Check the capacity of circuit
breakers
Replace the fuses
Check for damage to the cable Replace the cable
ALWAYS USE ORIGINAL PARTS AND ACCESSORIES.
