TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l REFERENCE INFORMATION STARTER CIRCUIT The connections for the neutral safety switch can be reached by removing the -engine cover. The connections are near I the gear shift lever. Replace neutral safety switch (refer to para. 5-6). 0 II . . WARNING Disconnect negative battery cable before disconnecting and reconnecting PCB harness. WARNING There is battery voltage at the PCB at all times. Failure to disconnect battery cable will result in damage to equipment or injury to personnel. Repair wiring (para. 4-60) or replace switch (para. 5-6). DC VOLTAGE O-45 VOLTS STVICE-R TEST 88 1. Connect RED clip to the indicated test point, BLACK clip to negative or ground. 2. Start Test 69, DC volts. 3. Displayed reading is in volts. VOLTAGE MULTIMETER 1. Set the voltmeter to a DC volts scale of at least 40 volts. 2. Connect the RED lead to positive and the BLACK lead to negative. I 3. Be sure to read the correct scale. CONTINUITY (RESISTANCE) MULTlMETER 1. Set the vottmeter to an ohms scale of about 1.000 ohms. 2. Connect the RED and BLACK leads to the connections stated in the question. 3. Be sure to read the correct scale. Less than 5 ohms indicates continuity. For an open circuit, the meter should peg full scale (needle all the way to the left). I RESISTANCE AND CONTINUITY I 04.5DO OHMS STE/lkE-R TEST 81 1. Connect RED clip and BLACK clip to the terminations indicated in the question. RED to the first, BLACK to the second. I 2. Start Test 91,0-4.500 Ohms. 3. Displayed reading is in ohms. Less than 5 ohms is continutty. If the resistance is over 4.500 ohms, STEACE-R displays .9.9.9.9. PCB BODY CONNECTOR 2-277