Failures
Walter Finkbeiner GmbH
Alte Poststrasse 9/11
72250 Freudenstadt / Germany
www.finkbeiner.eu
37 / 56
PB-BA-EHB702-102GB
22.02.2011
Check of limit cycle switches and switch cam
Housing of limit cycle switches
T1 (yellow LED)
T2 (blue LED)
Limit cycle switch
• The limit cycle switches with their corresponding yellow and blue LED control lamps should act
regularly through while lifting / lowering. If there are interruptions of the cycles or the cycles are ac-
tivated just very shortly, proceed as follows:
Remove cover panel above control box.
Check if both switches are moving freely inside the housing, hereto carefully pull at cable of
switch; when releasing the spring-acted switch will return to the initial position. If required clean
and lubricate the parts to get fee movement.
Check the position of the limit cycle switches: at top and at bottom position of the carriage the
yellow LED should be on, i.e. the top limit switch (T1) needs to be activated.
Check if the switch cam on the carriage is damaged, deformed or dirty; all switch cams should
be on one line and may not stand out. If required clean or replace.
9.4 Emergency lowering – lowering during failure
In case of power blackout or any electrical defects the lift can be lowered without electrical power.
This procedure may only be performed by an authorised, trained and competent technician.
DANGER
Hazard of vehicle to fall by non-prescribed emergency lowering.
• Observe the vehicle do not get into a dangerous inclined position.
• Lower the columns individually within small increments.
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