Maintenance and hardware diagnostics 143
Heatsink
The drive heatsink fins pick up dust from the cooling air. The drive can run into
overtemperature warnings and faults if the heatsink is not clean. When necessary,
clean the heatsink as follows.
WARNING! Obey the instructions in chapter Safety instructions on page 13.
Ignoring the instructions can cause physical injury or death, or damage to the
equipment.
WARNING! Use a vacuum cleaner with antistatic hose and nozzle. Using a
normal vacuum cleaner creates static discharges which can damage circuit
boards.
1. Stop the drive and disconnect it from the power line. Wait for 5 minutes and then
make sure by measuring that there is no voltage. See section Precautions before
electrical work on page 16 before you start the work.
2. Remove the cooling fan(s). See section Fans on page 144.
3. Blow clean, dry and oil free compressed air from bottom to top and
simultaneously use a vacuum cleaner at the air outlet to trap the dust.
Note: If there is a risk of dust entering adjoining equipment, do the cleaning in
another room.
4. Reinstall the cooling fan(s).
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