SECTION III: PRINCIPLES OF OPERATIONTM 9-2350-256-20e. MISCELLANEOUS ELECTRICAL COMPONENTS1Rigger’s light selector switch. The rigger’s light selector switch contains a three-position toggle switch thatcontrols the operation of the rigger’s service and IR light.3Accessories panel. The accessories panel contains the accessory outlet socket, a two-position winch lighttoggle switch, a two-position ventilating blower toggle switch, a two-position bilge pump toggle switch, atwo-position generator toggle switch, a bilge pump lamp, and a generator lamp.3Ventilating blower. An electric motor driven ventilating blower draws fresh air from outside the vehical intothe crew compartment for ventilation.f. CONDUITS, CABLES, AND CONNECTORS1Conduits. Flexible, metallic conduits are used on high-voltage cables to prevent electrical radiation whichmight interfere with communications equipment.2Cables. Electrical cables are rubber covered. The ends of all cables terminate in a pin or socket on aconnector, plug, or receptacle, or at a cable terminal. The cables are crimped or soldered to the pins sockets,terminals, or ferrules.3Plug and receptacle-type connectors. The plug has four main components: the shell assembly coupling nut.grommet, and retaining nut. The receptacle has three components: the receptacle assembly grommets andretaining nut. The receptacle is secured to a box or panel with four screw. The plug is secured to thereceptacle with the coupling nut. A waterproof connection is made with the retaining nut by compressing thegrommet to the ends of the plug or shell assemblies. The shell and receptacle assemblies have either pins orsockets for one or many electrical connections.4 Waterproof rubber connectors.Each connector has a male and female component. The female portionconsists of a rubber shell, sleeve, and ferrule. The male part consists of a rubber shell, C-washer, andterminal. The friction-fit union of the two halves forms a waterproof connection.1 - 1 8 T R A N S M I S S I O N A N D O U T P U T R E D U C T I O N D R I V E SNOTEThe following callouts are found in Figure 1-10.a. GENERALThe cross-drive transmission (3) is a combined transmission with steering unit and two output reduction drives (1and 2). It transmits power directly from the engine to the track drive sprockets. The transmission is controlled bythe vehicle operator by means of the shifting and steering controls and linkages, and the brake control peda1linkage.The cross-drive transmission (3) includes a hydraulic torque converter, a split torque drive. variable steering, anddisk-type brakes. The transmission delivers engine power to the track sprockets at an output torque which variesautomatically according to the driven-load conditions when not in linkup.There are three forward speed ranges and one reverseSteering is possible in all drive ranges and N (neutral). Steering in N (neutral) causes the vehical to pivot in place,with the tracks turning in opposite directions.1-27
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