FOG 442 9020, Manual

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444 9160 / 444 9180 / 442 9020
E 219 GB - Issue 1
3 4
9. Fault finding / problem solving
If unusual faults occur on the lift, switch off the power supply,
take it out of action, secure it against unauthorised use and
inform customer service.
All repairs must only be carried out by trained and qualified
specialists.
Information
As a general rule, the customer service should always be notified when
faults occur.
Noises during raising and lowering movements:
Cause:
Inadequate lubrication, worn spindle bearings, loose ribbed V-belt
Solution:
Grease spindle and tracks of the lifting carriage gliding units, check spindle bearings and renew if
necessary, tighten (replace) ribbed V-belt.
Swivel arm stopper does not function:
Cause:
Inadequate lubrication of the carrying bolts and toothed rings, toothed rings are worn, lower end position of
the lift not adjusted
Solution:
Grease carrying bolts and toothed rings, replace stopper unit.
Lift does not switch on electrically any longer:
Cause:
Main power supply and control leads interrupted, main switch defective, electronic defective, thermal
protection switch of the motors switches off, carrying nut broken.
Solution :
Check (replace) leads and connections for broken wires, replace main switch and electronics, let motors cool
down after frequent use, when carrying nut breakage has occured, take the lift out of action immediately
and secure it against unauthorised use.
Lift runs at an angle and stops:
Recognise the error acoustically and visually; determine the error by using the code table and solve it or
inform the repair service, naming the error code.