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TM 5-4210-220-12
1-9. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS. - Continued
c.
Lights and Safety Equipment. - Continued
(3)
The signal lights, consisting of the turn signal lights, stop lights, and back-up lights are used to indicate to
other traffic that the truck is about to change direction, slow down, or stop. The turn signal lights are directly controlled by
the driver. The stop lights automatically illuminate when the brake pedal is applied. The back-up lights together with a
back-up alarm operate when the transmission is selected to reverse gear. In addition to normal turn indication, all the
turn signal lights can be selected to flash simultaneously. This feature is used to indicate road hazard conditions.
(4)
The warning lights, comprising the strobe light beacons and oscillating warning lights, are used as visual
warning signals to other traffic. The beacons are fitted with high intensity flash tubes and the oscillating lights with high
intensity halogen bulbs.
(5)
The work lights consist of the front and rear spotlights. These high intensity lights are used for illumination
of work areas in front and behind the truck respectively. The front lights can be aimed individually from within the cab.
(6)
The auxiliary lights consist of the structural control panel lights, cab and canopy lights, a cab map reading
light, engine compartment lights, and storage compartment lights. These lights are provided for crew convenience. Two
of the cab dome lamps and the storage compartment lights are normally controlled by door actuated switches. The
remaining lights are manually controlled.
(7)
Rearview mirrors, comprising two rectangular mirrors and two convex mirrors are provided on the cab
doors. The rectangular mirrors are heated to prevent fogging or icing in cold weather and are equipped with marker
lights. The convex mirrors enable wide angle rear viewing.
(8)
Grab handles, located at all crew stations, are provided for safety when climbing on and off the truck.
Hinged safety bars are provided at the rear crew seats as additional protection for the rear seated crewmembers.
(9)
An electronic siren/PA (Public Address) unit is installed in the cab accessible to both driver and
crewmember. The speaker is mounted behind the front bumper together with electric and air horns. The electric horns
are operated from the steering wheel. The air horn is operated from pull chains on both sides of the cab.
d.
Engine. The truck is provided with a V-configuration, six-cylinder, two-cycle diesel engine equipped with
turbocharger and aftercooler (see fig. 1-7). The engine develops 350 horsepower at a governed speed of 2100 rpm.
Figure 1-7. Truck Engine
1-8
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