TM 8-4220-233-14bTrailer Assembly (Continued)(4) Electrical System. The electrical system of the trailer consists of a cable assembly that connects thetrailer lights to the prime mover's electrical system. The cable assembly is connected to an electrical junctionbox which provides a weather tight enclosure for the circuit breakers and terminal board. A wire harness isutilized to distribute the electrical signals to the trailer lights. The trailer utilizes standard military reartail/stop/turn lights with blackout capabilities. The trailer also has four amber marker lights on the front andfront/sides of the chassis and seven red marker lights on the rear and rear/sides of the chassis.(5) Swivel Jacks Three swivel jacks are provided with the trailer for stabilization. One jack is mounted alongthe curb side of the front drawbar and two jacks are mounted at the rear comers of the chassis. The swiveljacks rotate under the chassis while the trailer is being towed. Circular (bubble-type) levels are installed ateach corner of the chassis frame so that the swivel jacks can be adjusted until the Servicing Unit is properlyleveled.(6) Trailer Tool Box. A weather tight tool box is mounted on top of the road side fender on the trailer. Thistool box is used to store tools and spare parts needed to maintain the trailer.(7) Spare Tire Assembly. Attaches to the rear, bottom of the Trailer Assembly Additionally, a Hoist Assemblyallows the user to raise or lower the spare tire, when required.
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