TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
Page 430 of 890
REFERENCE INFORMATION The brake warning lamp should come on when the engine is cranking, when the parking brake is set, or When there is a failure in the brake system. If brake warning lamp stays on, go to 1, page 2-342. If the warning lamp does not come on, go to D, page 2-338. The volt gauge may be checked by running STE/ICE-R Test 67 with the engine running. The position in the center of the green area of the volt gauge marked GEN is approx- imately 26 volts. The volt gauge is a gatvanometer type gauge. It is conceivable that the coil in the gauge may have a broken wire that only opens when the gauge is heated up. If you are having an intermittent gauge problem, leave the vehicle running for awhile and watch the gauge. If the charging system is ok, but the gauge is reading full scale one way or the other, then you may have this type of problem. Rotary switch has to be in the RUN position for the windshield wiper or washer to operate. TM 9-2320-280-20-1 INSTRUMENTS CIRCUIT BRAKE WARNING LAMP VOLT GAUGE 2-323