Aircraft Alternator
Maintenance Manual
ES1031
24-30-01
Rev. B: 20 Apr. 2022
Page: 6-7
© 2022 - Hartzell Engine Technologies - All rights reserved
6.7 Exterior Cleaning (direct drive or belt drive)
NOTE:
Prior to cleaning the alternator whether mounted on the aircraft or as removed,
observe and note condition. Look for any arcing, wear marks, fretting or other indica-
tors of defect.
CAUTION:
DO NOT SPRAY CLEANING FLUIDS INTO THE ALTERNATOR HOUSING
OPENINGS. SOLVENTS MAY HAVE A HARMFUL EFFECT ON BRUSHES
AND SLIP RINGS. OPENINGS SHOULD BE TEMPORARILY PLUGGED WITH
SHOP TOWELS.
A. If mounted on an aircraft to engine, initial cleaning may be done using mineral spirits or isopropyl alcohol
under pressure. Blow dry using clean shop air.
B. If removed, initial cleaning should be done using a shop cloth and mineral spirits or isopropyl alcohol. Wipe
dry using clean shop cloths.
Figure 6.2 - Belt Drive with Pulley (ES-10024B1 thru -5, -5LS, ES-14024B-1 thru -5)
Typical Belt Driven
Alternator
Lockwasher and Nut
Multi Groove Type
Pulley*
* Some Alternators Delivered w/o Pulleys
Fan
Blades
Output Shaft
Fan
Back Plate
V Belt Type Pulley*