TM 9-2320-360-20-1 WARNING CONTINUITY TEST Jewelry can catch on equipment CAUTION and cause Injury or short across Electrical power must be disconnected electrical circuit and cause severe from circuit before continuity can be burns or electrical shock.  Remove checked.  Failure to comply may result in rings, bracelets, watches, damage to test equipment or electrical necklaces, and any other Jewelry system. before working around HET Tractor. (1)  Disconnect wiring from components at each end of wire. (2)  Set multimeter to ohms position NOTE Check ground wire no.  1435 from 12 volt A reading of infinity indicates an open magnetic switch for loose connections or circuit. damage. (3)  Connect multimeter leads to each end of wire and check multimeter for continuity NOTE Any reading besides infinity indicates a grounded wire (4)  Remove multimeter lead from one end of wire and connect to chassis ground. 12 VOLT MAGNETIC SWITCH TEST (1) Remove thirteen screws and three panels from console (2) Turn ENGINE switch to ON position. (3) Place positive (+) probe of multimeter on no 1075A wire at 12 volt magnetic switch. (4) Place negative (-) probe of multimeter on ground and look for 10-14 volts on multimeter. (5) Turn ENGINE switch to OFF position. WIRE NO.  1075A VOLTAGE TEST (1) Turn ENGINE switch to ON position. (2) Place positive (+) probe of multimeter on wire no.  1075A at WIPER circuit breaker. (3) Place negative (-) probe of multimeter on ground and look for 10-14 volts on multimeter. (4) Turn ENGINE switch to OFF position. Change 2  2-475