TM 5-3805-262-20
3-34. BATTERY SYSTEM TROUBLESHOOTING
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. BATTERIES NEED WATER FREQUENTLY.
Step 1.
A p p l y p a r k i n g b r a k e a n d p l a c e t r a n s m i s s i o n c o n t r o l l e v e r i n N
( n e u t r a l ) p o s i t i o n .
Start engine and operate at 1800 rpm.
Record voltmeter indication and turn off engine.
a. If voltmeter indicates more than 31 volts, refer to page 3-256,
charging system troubleshooting.
b. If voltmeter indicates 24 to 31 volts, go to step 2 below.
Step 2. Test batteries (MALFUNCTION 2, page 3-286, below).
a. Replace a defective battery (page 5-148) .
b. If batteries test okay, check wiring connection at alternator
BAT terminal,
starter relay, and starter solenoid BAT terminal
for corrosion or loose connection. Clean and tighten connections
as necessary.
If wiring connections are okay, check for high resistance in
battery cables (refer to page 3-283, MALFUNCTION 3, step 15).
2. BATTERIES DISCHARGED OR DO NOT MAINTAIN
Step 1.
Open radiator grille at
r e a r o f l o a d e r.
Connect STE/ICE power
cable W5 connector P1 to
VTM J1.
Check that VTM PUSH
ON/PULL OFF switch is in
OFF position.
Connect power cable W5 red
clip lead to loader
battery positive post and
black clip lead to loader
battery negative post.
Do STE/ICE confidence test
(TM 9-4910-571-12&P) .
Dial 60 into TEST SELECT
and press and release TEST
but ton.
CHARGE.
3-286
