SUSPENSION SYSTEM

PERSONNEL HEATER - TM-9-2350-261-20-1_52

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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TM9-2350-261-20-1 SUSPENSION SYSTEM The suspension system supports the carrier and delivers engine power to the road. It allows the carrier to maneuver and be stable. Suspension system parts are the drive sprockets, tracks, idler wheels, track tension adjuster, road wheels, and support arms. Also, there are torsion bars and shock absorbers. The M741A2 has lockout cylinders to stabilize the carrier during operation of the weapon. The drive sprockets drive the tracks. They are powered by left and right final drives from differential. The tracks consist of two flexible chains of track shoes. The tracks ride on the drive sprockets and are guided by the road wheels and idler wheels. The idler wheels can be adjusted to maintain correct track tension. There are five pairs of road wheels per side. Track centerguides fit between each pair of road wheels. Road wheels and torsion bars are connected to support inns. The torsion bars act as springs to keep the road wheels on the ground and from hitting the bottom of the carrier. ELECTRICAL SYSTEM The electrical system provides power for the carrier. The system operates on wet cell batteries and includes charging, regulating, and monitoring equipment. The batteries provide a normal operating 24 volts with an amperage capability of 100 or 200 amps per hour (depending on the system installed). The batteries supply the carrier with electricity when the engine is off. All electrical power is delivered through the distribution box. Electrical power flows from the batteries through the distribution box, cables, and wiring assemblies to the electrical equipment. The hull is a ground for the electrical system. The generator recharges the batteries and supplies electricity while the engine is running. The generator has 100 or 200 amps per hour capability (depending on the system installed). There are several electrical subsystems within the hull. Each subsystem contains at least one wiring assembly. Major electrical subsystems and assemblies are: Interior and Exterior Lights. Exterior lights include blackout lights, stop light, and headlights. Interior lights include domelights and panel lights. 2-6

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