Austro Engine E4 Series - Visually Examine the Alternator Housing and Pulley

E4 Series
Maintenance Manual
Electrical Power
E4.08.04
Rev.0
Page 229
24-31-00
01-Jul-2020
C. Visually examine the Alternator Housing and Pulley
Detail Steps/Work Items
Key Items/References
(1)
Examine the alternator housing for:
– Mechanical damages (cracks,
broken casing ribs, damages
threads, etc.)
If you find damages on the housing which
can cause incorrect operation, cooling, or
rigidity of the alternator, replace the
alternator.
(2)
Examine the rills for damages.
Refer to Fig. 24 - 37.
(3)
Turn the pulley by hand jerkily in
clockwise direction.
The rotor shall accelerate smoothly
without steady sound.
(4)
Examine the alternator bearings:
Turn the alternator counterclockwise.
The alternator rotor shall turn smoothly
without scraping noise.
When you turn the alternator by hand,
the revolutions must be regular.
(5)
Examine the freewheeling of the pulley as
follows:
– Turn the pulley by hand jerkily
counterclockwise.
After overriding the static friction, the
rotor shall not accelerate anymore.
This freewheeling mechanism shall work
smoothly and without scratching noises.
(6)
Accelerate the pulley by hand also
clockwise.
The rotor shall turn without delay.
Fig. 24 - 37 Pulley
Pulley