ELECTRICAL SYSTEM (M741A1 ONLY) (cont)

TM-9-2350-261-20-1 Carrier Personnel Full Tracked Armored M113A2 2350-01-068-4077 Carrier Command Post Light Tracked M577A2 2350-01-068-4089 Manual
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ELECTRICAL SYSTEM (M741A1 ONLY) (cont) Horn (1) is used to alert traffic and personnel. High beam selector switch (2) raise or lowers light beams. Infrared power pack (3) power periscope. Bilge pumps (4) keep bilge clear of water. Fuel quantity sending unit (5) measure amount of fuel in tank. Trailer receptacle (6) supplies electrical power to a towed trailer. Stop lights (7) indicate brake is on. Tail lights (7) illuminate rear of carrier at night. Dome lights (8) provide night vision inside carrier. Auxiliary power unit (APU) diode box (9) allows power to flow from weapon system distribution box (10) and prevents reverse current flow. Terminal boards (11) interconnect APU diode box with weapon system distribution box. Weapon distribution box (10) allows power to flow from APU to carrier starter circuit and prevents reverse current flow. Driver’s and commander’s hatch switches (11) prevent gun from firing if either hatch is open. NOTE See foldout (FO-6) in the rear of TM for 2-22 T M 9 - 2 3 5 0 - 2 6 1 - 2 0 - 1 wiring diagram

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