® Copyright ATH-Heinl GmbH & Co. KG, 2013, All rights reserved. / Misprints and technical changes reserved / Issue: 09/2016
18
MAINTENANCE
Reparation works are only allowed to be done by authorized service partners or, after contacting ATH, by the client.
Before maintenance and reparation works the lift must be disconnected from the electrical supply (main switch
off, disconnect plug). Suitable precautions must be made against a re-start.
Works on the electrical parts of the lift respectively on the supply lines are only allowed to be done by experts/electricians.
Troubleshooting
Error
Possible reason
Remedy
Lift does not work
Main switch is off.
Switch the lift on
There is no electrical connection
Check the power supply, if necessary
repair it
Fuses are burned
Replace
A limit switch is defect
Check the switches and connections,
if necessary replacing
No lifting
Wrong rotating direction of the motor
Change two phases on the main
switch
Not enough oil in the hydraulic circuit
Fill needed hydraulic oil (lift must be
lowered)
Button LIFTING does not react
Check the button and connection, if
necessary replacing
Lowering valve does not close
Check and clean the lowering valve, if
necessary replacing
The emergeny dumping screw closes
not properly
Tighten the screw
Filter on the pump is dirty
Check and clean
Obstacle between light sensor
Remove the obstacle
Reflector of light sensor is defect
Replace the reflector
Scissor platforms have not the same
height
Restore the synchronization
Light barrier is not positioned
correctly
Re-establish the correct position
No lowering
Control board defect
Replace control board
Electromagnet on the lowering valve
has no function
Check the function, if necessary
replace
Lowering valve does not open
Chec the lowering valve if it reacts, if
necessary replace
Button LOWERING defect
Check the button, if necessary
replace
Obstacle between light sensor
Remove the obstacle
Reflector of light sensor is defect
Replace the reflector
Scissor platforms have not the same
height
Restore the synchronization
Light barrier is not positioned
correctly
Re-establish the correct position
Lift does not stop at CE-Stop
Limit switch (CE-Stop) is wrong
adjusted resp. defect
Check the adjustment of the limit
switch. In case of a defect limit switch
replace it.
Lift does not raise synchronical
