TM 5-3805-262-203-8. CHARGING SYSTEM TROUBLESHOOTINGMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1. ALTERNATOR NOISY.Check alternator drive belts tension (page 5-2).a. Adjust drive belts tension as necessary (page 5-5). Replace wornor damaged belts as a matched set (page 5-4).b. If belt tension is okay, replace alternator (page 5-10) and for-ward noisy alternator to next higher maintenance level for re-p a i r .2. ALTERNATOR NOT CHARGING BATTERIES.B a t t e r y e l e c t r o l y t e i s t o x i c a n d c o r r o s i v e . U s e p r o t e c t i v e g o g g l e s a ndg l o v e s w h e n p e r f o r m i n g t h e f o l l o w i n g.Avoid contact with skin, eyes,clothes, and don’t breathe vapors.Step 1.Check battery specific gravity (page 5-144).a . I f c o r r e c t e d s p e c i f i c g r a v i t y o f e a c h b a t t e r y c e l l i s a t l e a st1.225, go to step 2 below.b . I f c o r r e c t e d s p e c i f i c g r a v i t y o f a n y b a t t e r y c e l l i s l e s s t h an1.225, charge battery using external charger (page 5-146). Thengo to step 2 below.Step 2.Remove engine side panels (page 9-14).Connect multimeter between alternator BAT terminal and chassisframe.Multimeter should indicate 24 volts.3-60
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