TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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REFERENCE INFORMATION -I I These tests check the strength of the batteries during engine cranking. If you don’t have STUICE-R, skip this step, but remember that you haven’t tested the batteries under load. STARTER NEG. CABLE VOLTAGE DROP STE/lCE-R TEST 69 1. Start Test 69, Starter Negative Cable Voltage Drop. 2. Displayed reading is in volt. The cable voltage drop should be less than 0.25 volt max. Repair/replace wire (para. 4-80). -I Repair/replace wire (para. 4-60). TM 9-2320-387-24-1 BAITERY CIRCUIT BAlTERY INTERNAL RESISTANCE STOICE-R TEST 73 1. Diinnect wire 54A at injection pump to prevent starting. 2. Disconnect glow plug controller and fan solenoid. 3. Start Test 73, Battery Internal Resistance. 4. Wait for the GO message. Crank the engine. 5. Result is displayed in milliihms. Battery resistance should be 25 milliohms max. BATTERY RESISTANCE CHANGE STUICE-R TEST 75 1. Disconnect wire 54A at injection pump to prevent starting. 2. Disconnect glow plug controller and fan solenoid. 3. Start Test 75, Battery Resistance Change. 4. Wait for the GO message. Crank the engine. 5. Result is displayed in milliohms&cond. Battery resistance change should be 50 milliohms/second max. DC VOLTAGE O-45 VOLTS STEIICE-R TEST 69 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. 2-241