TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-34-l REFERENCE INFORMATION FUEL SYSTEli/j PCS BODY CONNECTOR Repair/replace harness (para. 4-80). Repair/replace rotary switch (para. 4-10). : 0 11 . . I WARNING REAR OF ROTARY SWflCH 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. Be sure to reconnect the wires at the rotary switch and the fuel solenoid. FUEL SOLENOID WIRING RESISTANCE AND CONTINUITY O-4500 OHMS STE/lCE-R TEST 91 1. Connect RED clip and BLACK clip to the terminations indicated in the question. 2. Start lest 91, o-4.500 Ohms. 3. Displayed reading is in ohms. Less than 5 ohms is continuity. If the resistance is over 4.500 ohms, STEACE-R displays .9.9.9.9. CONTINUITY (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). -. Replace PCB (para. 4-4). 2-l 39/(2-l 40 blank)