Fig. 24 - 5 Alternator with removed plastic cover
24-30-33 Visual Inspection of Alternator Housing and Pulley
Check the alternator housing for mechanical damages such as cracks, broken casing ribs, damages
threads, etc.
If there are any damages on the housing, which impair the functionality, the cooling or the rigidity of
the alternator, replace the alternator.
Check the drive pulley of the alternator for mechanical damages. Check the rills for damages.
Furthermore check the freewheeling of the pulley as follows:
Turn the pulley by hand jerkily in counter clock direction. After overriding the static friction,
the rotor is no more accelerated. This freewheeling mechanism should work smoothly and
without scratching noises.
Accelerate the pulley by hand also in clockwise direction. The rotor should turn without delay.
Fig. 24 - 6 Pulley
ASSY brush holder E4A-91-300-000
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