ATH-Heinl Pure Lift 2.40 Bedienungsanleitung Seite 79

Problems with lowering
The lift does not lower
If the fault cannot be rectified, lower the lift using the emergency lowering screw and
Stage lowers too slowly or
jerkily
The lift lowers by itself
Other problems
The lift does not raise and lower
synchronously
Product shows (severe) rust
damage
unusual volume of the engine
Circuit breaker has been
activated
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Safety notches do not respond
Defective control relay
Obstacle under stage
Hose rupture protection
triggered
Lowering valve is not activated
The lowering valve solenoid is
defective
Lowering valve defective
Lowering speed valve
incorrectly set
contact our service team
Dirty lowering valve
Lowering speed valve
incorrectly set
Leaking hydraulic connections
Leaking hydraulic lines
Leaking hydraulic cylinders
Dirty or defective lowering
valve
Leaking check valve
Air in the hydraulic circuit
Insufficient tension in the
synchronizing ropes
Damage or inadequate
corrosion protection,
maintenance if necessary
Oil filter contaminated
Air in the hydraulic circuit
Contaminated hydraulic oil
Check the contact on the
contactor
Checking the capacity of circuit
breakers
Check for damage to the cable
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Check cable connection
Check electromagnet, replace if
necessary
Relieve resting by lifting
Check control relay
Remove obstruction
Briefly raise the platform and
press "DOWN" again
Check electrical connection
Replace solenoid
Clean the lowering valve
To adjust
Retighten connections, seal if
necessary
Replace hydraulic line
Replace seals and clean the
hydraulic system
Clean or replace the lowering
valve
Clean or replace
Vent the hydraulic circuit
Setting the voltage or the
synchronization
De-rust, clean and restore the
surface.
Clean the oil filter
Bleed the hydraulic system
Change the hydraulic oil
Replace the contactor
Replace the fuses
Replace the cable