TM 9-6115-729-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
CORRECTIVE ACTION - Continued
STEP 6.
With fuel level below two inches or fuel level indicator showing empty, measure
resistance between J11-1 and J11-2. If not less than 2 ohms, replace fuel level
switch assembly (WP 0055).
STEP 7.
Verify the problem has been resolved.
SYMPTOM
32.
Alternator Does Not Charge Batteries.
MALFUNCTION
Alternator Drive Belt Loose or Defective.
CORRECTIVE ACTION
STEP 1.
On EMCP set Engine Control Switch to OFF/RESET. Set Battery Disconnect
Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Inspect the condition of the alternator drive belt. If the alternator drive belt is worn
or damaged, replace drive belt (WP 0073).
STEP 3.
Verify the problem has been resolved.
MALFUNCTION
Charging Circuit Defective.
CORRECTIVE ACTION
STEP 1.
On EMCP set Engine Control Switch to OFF/RESET. Set Battery Disconnect
Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Inspect cables between battery, Battery Disconnect Switch, and starter solenoid
(FO-1, sheet 2).
a. Check shunt (R4) for loose/corroded connections. Clean and tighten as
required.
b. Clean and tighten battery cable ends, as required.
c.
Replace cable(s), as required (WP 0046).
d. If voltage is correct, perform load test on batteries individually (WP 0049).
e. If battery fails, replace battery (WP 0049).
f.
If batteries pass load test, charge batteries fully (WP 0049).
STEP 3.
Set Battery Disconnect Switch to on. Set DEAD CRANK switch to NORMAL. On
EMCP set Engine Control Switch to COOL DOWN/STOP.
STEP 4.
Observe and record battery voltage on GSC display.
a. Set Engine Control Switch to MANUAL START.
b. Observe battery voltage on GSC display. Battery voltage should be 2 Vdc
higher than recorded voltage.
c.
If voltage is below, or falls below, minimum, replace alternator (WP 0072).
STEP 5.
Verify the problem has been resolved.
0011-42
