TM 9-2350-256-20CHAPTER 6MAINTENANCE OF ELECTRICAL SYSTEMS AND CIRCUITSCHAPTER OVERVIEWThis chapter describes how to remove, disassemble, adjust, assemble, and install electrical systems and circuits.This chapter consists of the following sections:PageSection I:Charging/Starting System and Vehicle Batteries ................6-1Section II:Gages and Switch Panels ..................................................6-18Section III:Sending Units, Warning Light Switches, and WarningHorns.................................................................................6-43Section IV:Lighting System.................................................................6-56Section V:Vehicle Wiring ...................................................................6-74Section VI:Miscellaneous Electrical Components................................6-258Section VII:Terminal Connector Procedures .......................................6-264SECTION I: CHARGING/STARTING SYSTEM AND VEHICLE BATTERIESPara.TaskPage6—1Replace/Repair Engine Generator, Cradle, Support, and Related Parts ........................................ 6-16—2Replace Master Relay Housing (Dual and Single Voltage) ........................................................... 6-86—3Replace Engine Starter, SolenoidRelay, and Bracket............................................................... ... 6-96—4Replace Batteries, Battery Trays, and Terminal............................................................................ 6-126—5Replace Voltage Regulator and Related Parts (Dual Voltage) (11672403)...................... .............. 6-146—6Replace Voltage Regulator (Single Voltage) (11659111-1) ........................................................... 6-176—7Replace Engine and Auxiliary Power Unit (APU) Armature Relay (Single Voltage) ....................... 6-186—1REPLACE/REPAIR ENGINE GENERATOR, CRADLE, SUPPORT, AND RELATED PARTSTHIS TASK COVERSa. Removalb. Disassemblyc. Assemblyd. InstallationINITIAL SET-UPTools:Parts:• Tool kit, general mechanic's (Appendix C,• Lockwashers (8) (Appendix G, item 130)item 53)• Lockwashers (6) (Appendix G, item 100)• Wrench, box and open-end combination• Lockwire (Appendix G, item 58)(Appendix C, item 55)• Nuts, self-locking (4) (Appendix G, item 167)Equipment Condition:Powerplant removed (see paragraph 3-1)WARNINGBe certain MASTER switch is OFF when working on electrical system to avoid electrical shock andburns.6—1
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