AE50R, AE50RA
AE50RAB
Engine Manual
Doc. No. E1.01.0-E Rev. 6 10-March-2011 Page 13-5
13.5.5 Rotor Cooling Air Fan Impeller
1) At the intervals stated in 12.1 the fan impeller should be inspected. The complete fan
should be removed from the engine and the bearing housing assembly removed from
the fan housing.
2) Carefully examine the impeller for cracks with a X 10 magnifying glass, particularly on
the fan blade – back plate, root radius. No cracks are allowed.
NOTE !
If in doubt change the impeller / bearing housing assembly!
The impeller cannot be removed from spindle!
3) Refit and check the fan belt tension (see section 11.3).
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