TM 5-4220-233-149Intervehicular Cable. Provides the electrical interface between the towing vehicle and the trailerEquipped with a standard 12-pin connector.10 Electrical Box. A weather-proof junction box where the trailer wire harness is connected to theIntervehicular cable.11 Wire Harness. Distributes electrical signals to the trailer marker, tail, stop, turn and blackout lights.12 Composite Light . Provides the rear tail, stop, turn, and blackout lights for the trailer.13 Marker Light. Provide an outline of the trailer envelope. Red markers are mounted at the rear andrear/sides of the trailer chassis. Amber markers are mounted at the front and front/sides of the trailerchassis.14 Reflector. Mounted at front corners and front/side corners of the trailer chassis. Reflectors are amber incolor.15 Swivel Jack. One front and two rear jacks are provided to allow the Servicing Unit to be operated onsloped terrain.16 Circular Level. A bubble-type level that is used as a guide when operating the swivel jacks to properlylevel the Servicing Unit prior to operation or maintenance.Figure 1-3. Servicing Unit Trailer Assembly. (Sheet 2)1-9
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