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Preparing for cleaning
Death of severe injury as a result of rotating fan blades
When carrying out repair and maintenance work on the fan, rotating fan blades can cause
severe injury.
• Switch off the fan.
• Disconnect the fan circuit and lock out the fan so that it cannot be switched on again.
• If at all possible, lock the fan blades so that they cannot rotate.
Before cleaning the fan and motor, proceed as follows:
1. Switch off the motor and fan.
2. Disconnect both of them from the power supply by disconnecting all phases.
3. Ensure that they both cannot be accidentally switched on again.
4. Once the voltage has been disconnected on all poles, wait for 5 minutes before touching the
device.
5. Allow the motor and fan to cool down.
6. If at all possible, lock the fan blades so that they cannot rotate.
Cleaning
Danger to life due to risk of explosion caused by solvents
When you use solvents, vapors are released and can explode if they come into contact with
a source of ignition. The explosion can cause death or severe injury.
• Remove or extinguish all sources of ignition.
• Only use tools where sparking can be completely ruled out.
• Ensure good ventilation.
Risk of injury through contact with cleaning agents and solvents
Contact with cleaning agents and solvents can cause chemical burns and irritate the skin
and mucous membranes.
• Carefully observe all of the safety and application notes provided on the packaging of the
• Ensure that any vapors that are released are drawn out and that the work area is well
• Use the appropriate personnel protection equipment (such as protective eyewear,
1PH3 main motors
Equipment Manual, 01/2021, A5E43087278-004
WARNING
WARNING
CAUTION
cleaning agents and solvents.
ventilated.
gloves, respiration filter).
10.7 Cleaning the motor and the external fan
Maintenance
119
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