Wifi Function And App Connection; Maintenance; Troubleshooting - Liemke CHALLENGER-35 Manual De Instrucciones

19. WIFI FUNCTION AND
APP CONNECTION
The app and information on the app connection can be found at:
https://liemke.shop/medien

20. MAINTENANCE

Maintenance should be carried out at least twice a year and
consist of the following actions.
> Wipe the external surfaces of metal and plastic parts free of
dust and dirt with a cotton cloth. Silicone grease can be used
for this purpose.
> Clean the contacts of the unit with a non-greasy organic
solvent.
> Check the glass surfaces of the eyepiece and the lens. If neces-
sary, remove dust and sand from the lenses (preferably using a
non-contact method). Cleaning of the external surfaces of the
optic should be done with substances designed especially for
this purpose.

21. TROUBLESHOOTING

This table lists all the problems that can occur when using the unit.
Carry out all recommended checks and repairs as described in
the table.
If an error occurs that is not listed in the table or if you cannot
rectify an error yourself, the unit should be handed over to the
responsible service centre for repair.