AEG PROTECT C Series User Manual page 108

If large quantities of dust have accumulated, the unit should, as a precaution, be
cleaned with dry compressed air, in order to ensure adequate heat dissipation.
The intervals at which visual checks should be performed are largely determined by
the site conditions.
.2.2 CHECKING THE BATTERY
Progressive ageing of the battery system can be detected by regular capacity checks.
Every 6 months, perform measurements to compare the achievable standby times,
e.g. by simulating a mains failure. In this case, the load should always have approxi-
mately the same capacity demand. Please contact our hotline if the time drops
drastically compared to the previous measurement
.2.3 FAN CHECKING
Regularly check the fans for dust build-up and noticeably untypical noise develop-
ment. Clean the intake openings if they are blocked. Contact our hotline if a fan is
running unusually loud or irregularly.
.3 BATTERY REPLACEMENT
Caution!
A battery can present a risk of electrical shock and can be very dangerous if handled
improperly.
The following precautions should be observed before replacing the batteries:
Remove rings, watches and other metal objects.
If the battery replacement kit is damaged in anyway or shows signs of leakage,
contact your dealer immediately.
Properly recycle or dispose of used batteries. Do not dispose of batteries in a fire.
The batteries may explode.