40
Symptoms
Cause
Solution
Some wheel grippers work, others
do not
Some wheel grippers are not
online/grouped
Check the grouping/connection
Too little oil in the hydraulic unit
Fill more hydraulic oil
The Lift button is defective
Check the button and replace it if
necessary.
The lowering valve does not close Check and clean if dirty, replace if
defective
The emergency lowering valve
drain screw does not close
Tighten the screw again
The filter of the suction pump is
dirty
Check and clean if necessary
The fork does not lift when the
Lift button is pressed
The cables of the lift button are
not connected
Check and reconnect
The detents are not opened
Check if the electrical cables to
the electromagnet have loosened.
Tighten them again if necessary.
The lowering valve does not work Check whether the wheel gripper is
supplied with power and check the
lowering valve for damage (replace
if defective)
The lowering key is defective
Check the button and replace if
necessary.
The lifting fork does not lower
when the lowering button is
pressed.
The cables of the lowering key are
not connected
Check and reconnect
The fork is lifted from the lowest
position
Make sure that the fork lifts from
the lowest position
The reset switch is not set
correctly or is defective
Adjust or change the limit switch
The height value is not displayed
correctly during the lifting phase
The cable to the height sensor is
disconnected or loose
Check the connection for proper
function
® Copyright ATH-Heinl GmbH & CO.KG, All rights reserved / Misprints and technical changes reserved
Release date: 10-2022 / Product manufacturer ATH-Heinl GmbH & CO. KG
