TM 8-4220-233-14
b
Trailer Assembly (Continued)
(4) Electrical System. The electrical system of the trailer consists of a cable assembly that connects the
trailer lights to the prime mover's electrical system. The cable assembly is connected to an electrical junction
box which provides a weather tight enclosure for the circuit breakers and terminal board. A wire harness is
utilized to distribute the electrical signals to the trailer lights. The trailer utilizes standard military rear
tail/stop/turn lights with blackout capabilities. The trailer also has four amber marker lights on the front and
front/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 along
the curb side of the front drawbar and two jacks are mounted at the rear comers of the chassis. The swivel
jacks rotate under the chassis while the trailer is being towed. Circular (bubble-type) levels are installed at
each corner of the chassis frame so that the swivel jacks can be adjusted until the Servicing Unit is properly
leveled.
(6) Trailer Tool Box. A weather tight tool box is mounted on top of the road side fender on the trailer. This
tool 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 Assembly
allows the user to raise or lower the spare tire, when required.
