TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download

Page 417 of 1205

TM 9-2320-387-24-l REFERENCE INFORMATION INSTRUMENTS CIRCUIT The easiest way to reach the circuit breaker is to remove the gauge panel screws and pull the panel out far enough to work with the wiring. - i -I DC VOLTAGE O-45 VOLTS STEIICE-R TEST 89 1. Connect RED clip to the indicated test point. BLACK clip to negative or ground. 2. Start Test 89, DC Votts. 3. Displayed reading is in volts. BAtTERY 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. 3. Be sure to read the correct scale. The heater motor is located directly in front of the passenger seat under the instrument panel, connected to the heating ducts. ROTARY SWITCH HEATER BLOWER SWITCH - 2-363