TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 114 of 1275
TM 9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED a. BATTERY CIRCUIT — CONTINUED CONTINUED FROM STEP A If voltage is 18 Vdc or above, replace starter motor (para 8-14). 1. Turn MASTER switch ON. 2. Place red lead of multimeter on positive post and black lead on negative post of battery (1). 3. Crank engine and check voltage. 4. Voltage reading should not be below 9 Vdc. 5. Repeat on remaining batteries (2 ,3, and 4). Is voltage 9 Vdc or below? If voltage is 9 Vdc or below for any battery, check battery specific gravity and replace if necessary (para 8-28). If voltage is 9 Vdc or above for any battery and problem recurs, batteries should be checked individually and replaced as required (para 8-28). ENGINE CRANKS SLOWLY — CONTINUED END OF TASK 3-14