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External Fan Made Of Plastic - Siemens 1LA8 Operating & Installation Instructions Manual

Low-voltage motor simotics tn series n-compact.
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Maintenance
9.2 Corrective Maintenance
3. Then push the external fan
4. Insert the retaining ring
Air inlet nozzle
Two-pole machines are equipped with an air inlet nozzle
fan and air inlet nozzle must measure ≥ 2 mm evenly over the circumference.
Danger of explosion as a result of a fan impeller coming into contact with its surroundings
The fan impeller of a metallic external fan coming into contact with another component can
cause arcing and explosion. This can result in death, serious injury or material damage.
● Remove any dirt.
● Regularly and after any performed work check the distance between the fan impeller and
● Please contact the Service Center if you require any support when aligning the
See also
Service and Support (Page 149)
9.2.6

External fan made of plastic

External fans made of plastic feature a cast-on driver similar to a parallel key. The external fan
is secured using a retaining ring to prevent axial movement.
120
purpose.
WARNING
adjacent components, such as air inlet nozzle. Correct the alignment of the components,
if necessary. The gap between the air inlet nozzle and the fan impeller should be at least
2 mm around the complete circumference.
components.
onto the shaft up to its stop. Use a suitable device for this
into the corresponding groove and check its fit.
. The spacing between external
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 08/2017

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