TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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REFERENCE INFORMATION -I Replace harness. Notify DS maintenance (chapter 18). - -I Replace glow plugs (para. 3-39). 0 II . . WARNING Disconnect negative battery cable before disconnecting and reconnecting PCB harness. _J 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. 1 Replace PCB (para. am ENGINE CONNECTOR WITH PINS A & B HIGHLIGHTED TM 9-2320-387-24-l GLOW PLUGS CIRCUIT DC VOLTAGE O-45 VOLTS STEdCE-R TEST 89 1. Connect RED dip to the indicated test point, BLACK clip to negative or ground. 2. Start Test 89, DC Volts. -3. Displayed reading is in volts. VOLTAGE MULTIMETER 1. Bet 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. 3. Be sure to read the correct scale. RESISTANCE AND CONTINUITY 04,500 OHMS STEnCE-R TEST 91 1. Connect RED dip and BLACK clip to the indicated test points in the question. RED to the first, BLACK to the second. 2. Start Test 91,0-4.500 Ohms. 3. Displayed reading is in ohms. Less than 5 ohms is continuity. If the resistance is over 4.800 ohms, STEXE-R displays .9.9.9.9. CONTlNUllY (RESISTANCE) MULTIMETER 1. Set the voltmeter 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). 2-299