TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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CAUTION WARNING Remove rings, bracelets, watches, necklaces, and any other jewelry before working around vehicle. Jewelry can catch on equipment and cause injury or short across electrical circuits and cause severe burns or electrical shock. Use care when testing electrical connectors. Do not damage connector pins or sockets with multimeter probes. Failure to comply may result in damage to equipment. NOTE Inspect connector pins/sockets for damage, corrosion, and serviceability. Check that connector pins are not pushed back and are capable of making good contact. VOLTAGE TEST NOTE (1) Remove four screws from RH cab marker light base. Do not let wires slip through hole into cab structure. If wires slip into cab structure, vehicle will need further disassembly to retrieve wires. (2) Remove nut, lockwasher, terminal lug TL134, and lockwasher from RH cab marker light base. Discard lockwashers. (3) Extend base and disconnect connector P132 from marker light connector. (4) Remove gasket from RH cab marker light base. Discard gasket. (5) Set multimeter to volts DC. (6) Connect positive (+) probe of multimeter to connector P132 socket. (7) Connect negative (-) probe of multimeter to ground. (8) Position main light switch to SER DRIVE (TM 9-2320-365-10) and note reading on multimeter. (9) If 12 VDC is not present, repair wire 1947 from connector P132 socket to splice E22 (para 2-40) or replace RH door and cab marker lights cable assembly (para 7-57). (10) If 12 VDC is present, replace RH cab marker light (para 7-31). (11) Position main light switch to OFF (TM 9-2320-365-10). (12) Install gasket on RH cab marker light base. (13) Connect marker light connector to connector P132. (14) Install lockwasher, terminal lug TL134, lockwasher, and nut on back of RH cab marker light base. (15) Install RH cab marker light base on vehicle with four screws. (16) Install RH cab marker light lamp in socket. (17) Install lens cover on base with two screws. Change 1 2-555 TM 9-2320-365-20-1 VOLTAGE TEST (Cont)