Cleaning & Maintenance - Häfele 917.37 Série Instructions D'utilisation

8. Cleaning / Maintenance
8.1 Cleaning
8.2 Servicing /
Maintenance
12
Clean the product using:
• A dry, soft cotton cloth.
• A damp cloth with washing-up liquid or neutral cleaner.
The product is not suitable for cleaning with:
• Cleaning agents with alcohol, organic solvents or thinners.
• Abrasive materials.
• High-pressure or steam cleaning equipment.
Battery change
• Indication of a weak battery occurs after switching on the electronics and holding
a key in front of the lock: red LED flashes 3 times.
• It is advisable to always replace all of the batteries.
• The batteries must only be changed by trained experts appointed by the operator.
Other maintenance work is not permitted.
• The locking authorisations for the user keys are retained after a battery change
and do not have to be reset.
See instructions starting on page 40.
AA
Other remarks:
• Only use original spare parts from Häfele.
• Always have repairs carried out by experts.
• Do not grease or oil the product.
• Protect electronic components from water.
• Do not cover reader modules with metal materials.