11. Cleaning and maintenance
11.1
Cleaning
NOTE
Damage to product due to incorrect cleaning
•
Do not use cleaners containing alcohol, organic solvents or thinners.
•
Do not use abrasive materials.
•
Do not use pressure or steam cleaning devices.
•
Only clean the outer surfaces of the product if necessary.
•
Clean the surface of the product with a dry, soft cotton cloth or a damp cloth with
a little washing-up liquid or neutral cleaner.
11.2
Maintenance
The product is maintenance-free apart from having to change the batteries.
NOTE
Damage to product due to incorrect maintenance
•
Do not carry out repairs.
•
Do not use lubricants.
•
Contact the manufacturer in the event of damage / malfunctions.
•
If the product and/or the battery compartment are damaged (e.g. due to falls or
collisions), also check the batteries for damage.
•
In case of visible damage to the batteries or leaking battery acid, remove the batteries
immediately and dispose of them properly in accordance with national regulations.
Avoid contact with the battery acid.
•
If parts have to be replaced, always use original replacement parts from HÄFELE.
11.3
Changing the batteries
If the batteries are low, the LL 300 can be opened again, but not closed.
When the LL 300 is activated by pressing the push-button, an acoustic signal sounds three times
and the LEDs on the inside flash red and green alternately three times. This is the request for an
immediate battery change.
NOTE
Malfunction due to low battery charge!
•
Problem-free operation is only ensured with fully charged batteries.
•
Replace weak batteries immediately as soon as the signal occurs!
•
Only use new and recommended batteries (3.2 Technical data, page 27).
•
Always replace all batteries.
•
The use of rechargeable battery packs is not permitted.
The locking authorisations for the user keys are also retained after a battery change and do not
have to be reset.
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