3. Avoid using a hammer.
4. Secure the parallel key from falling out or remove it.
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Figure 9-1
Ventilation (schematic diagram with axial fan)
Assembly
1. Remove the parallel key lock or insert it in the keyway.
2. Check the correct seating.
3. Then push the external fan
①
onto the shaft up to its stop. Use a suitable device for this
purpose.
4. Insert the retaining ring
②
into the corresponding groove and check its fit.
Air inlet nozzle
Two-pole machines are equipped with an air inlet nozzle
③
. The spacing between external
fan and air inlet nozzle must measure ≥ 2 mm evenly over the circumference.
WARNING
Explosion hazard from grinding fan
If the fan impeller comes into contact with another component, it can cause sparking and an
explosion. This can result in death, serious injury, or material damage.
● Remove any dirt.
● Regularly check and after any work check the spacing between fan and 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.
● Please contact the Service Center, if you require any support when aligning the
components.
Maintenance
9.2 Corrective Maintenance
SIMOTICS TN Series N-compact 1LA8
116
Operating Instructions 05/2014
Summary of Contents for 1LA8
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