Quantcast INSPECTION, TESTING, AND REPAIR - TM-9-2330-329-14-P0628

Custom Search
 
  
 


TM 9-2330-329-14&P
ALTERNATOR MAINTENANCE--Continued
0145 00
INSPECTION, TESTING, AND REPAIR
WARNING
Solvents can burn easily, can give off harmful vapors, and
are harmful to skin and clothing. To avoid injury or death,
keep away from open fire and use in a well-ventilated area.
If solvent gets on skin or clothing, wash immediately with
soap and water.
CAUTION
Do not use excessive air pressure or parts could be damaged.
NOTE
All parts to be reused should be cleaned in cleaning compound
and air-dried.
Regulator. Check regulator for any signs of corrosion or burns in circuit board. If either is present,
1.
replace regulator.
Brush Assembly. Replace brushes and brush holder.
2.
Stator. Check for signs of physical damage, such as evidence of rotor striking stator laminations,
3.
broken insulation, or presence of foreign material that would restrict cooling of stator. If damage is
present, replace alternator.
Check stator windings with a multimeter. Place one test lead on stator lamination and other on
each of stator connectors. Multimeter should show no continuity. If continuity is present, replace
Place test leads alternately between three connectors. Continuity should be present between
connectors. If continuity is not present, replace alternator.
Rectifier Heat Sink Diodes. If excess physical damage is evident, replace alternator.
4.
Connect positive lead of multimeter to positive heat sink and touch negative test lead to each of
three diode terminals. High resistance should be indicated. If any or all diodes indicate low or no
resistance, replace alternator.
Reverse multimeter leads so that negative test lead is connected to positive heat sink. Touch
positive test lead to each of three diode terminals. Low resistance should be indicated. If any or all
diodes show high resistance, replace alternator.
Connect negative test lead of multimeter to negative heat sink and touch positive test lead to each
of three diode terminals. High resistance should be indicated. If any or all diodes show high
resistance, replace alternator.
Reverse multimeter leads so that positive test lead is connected to negative heat sink. Touch
negative lead to each of three diode terminals. A low or absent resistance reading should be
obtained.
If a shorted open diode is detected in any test, replace alternator.
0145 00-5



 


Privacy Statement - Copyright Information. - Contact Us

Integrated Publishing, Inc.