TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 207 of 1176
TM 9-2320-361-24-1 0012 00 0012 00-23 BATTERY AND CHARGING SYSTEM TROUBLESHOOTING (Contd) Table 3. Charging System (60 Amp) Troubleshooting Procedure (Contd). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. NO ALTERNATOR OUTPUT 3. Check voltage at pin D of power accessory switch. Battery voltage should be present. 4. With both ends of lead 1 disconnected, check continuity. 1. If battery voltage is present, go to WP 0012 00, table 3, malfunction 1, test 6, step 4 and check continuity of lead 1. 2. If voltage is not present, go to WP 0012 00, table 2, malfunction 1, test 4, step 8, to test continuity of power accessory switch. 3. If continuity is present in power accessory switch, go to next step. 1. If continuity is present, reconnect lead 1 to pin D of power accessory switch. With power accessory switch in ON position, battery voltage should be present at lead 1. 2. If continuity is not present, repair or replace lead 1 (WP 0090 00). TEST 3 STEP 4 TEST 6 STEP 3 TEST 6 STEP 4 TEST 3 STEP 5 TEST 4 STEP 4 TEST 5 STEP 1 ~ ALTERNATOR NEGATIVE LEAD HORN CIRCUIT BREAKER LUG 2 PIN 1 LUG 3 PIN 4 214 568 3 1 2 2 27 11 11 PIN B PIN A PIN D STARTER MOTOR PIN C FRAME GROUND POWER ACCESSORY SWITCH