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|  MIL-T-45380E(AT)
When specified (see 6.2), an ammeter or voltmeter gage, oil pressure gage, and coolant
temperature gage shall be provided in lieu of the indicators and buzzers specified above. When
specified (see 6.2), an automatic engine shutdown system also shall be furnished. The system
shall include an engine coolant temperature, engine coolant level and engine oil pressure red
indicator warning light and alarm buzzer. The warning light and buzzer actuation shall preceed
engine shutdown. The system shall permit engine 'restart and run for approximately 30 seconds
following automatic shutdown. Also, engine oil pressure and engine coolant temperature gages
shall be provided with the automatic engine shutdown system.
*
3.4.20 Rearview mirrors. Outside rearview mirrors shall be mounted on each side of the
cab. The mirrors shall have flat and convex areas. The flat portion shall have not less than
50 square inches of reflective area. The convex portion shall have not less than 25 square inches
of reflective area and a radius of curvature of not less than 20 inches. The mirrors shall have not
less than two supporting arms.
3.4.21 Horn. The manufacturer's standard electric horn shall be furnished. When
specified (see 6.2), in addition an air operated horn shall be furnished.
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3.4.22 Front mounted winch. When specified (see 6.2), the vehicle shall be furnished
with a winch assembly, mounted on the front of the vehicle and powered by the auxiliary unit
with controls at operator station and in the cab. The winch shall conform to SAE J706. The
winch shall be single drum type and shall have one forward and one reverse speed. All winch
controls shall be mounted inside the cab. Winch controls shall be located to provide no
interference with the entrance or exit of the driver. The winch shall have a rated single line pull
capacity of not less than 20,000 pounds on the bare drum. The winch line speed on the bare
drum shall be between 15 and 20 feet per minute at an auxiliary engine speed equal to
1,500 RPM. The winch shall be wound with not less than 200 feet of 5/8-inch diameter,
preformed 6x37, improved plow steel, independent wire rope core (IWRC) cable and shall be
equipped with an end chain and hook. An integral, adjustable automatic safety brake shall be
provided. The winch shall be equipped with a roller guide. Angles of the winch driveline
U-joints shall be not greater than 16-1/2 degrees.
3.4.22.1 Winch drum guard. A winch drum guard shall be furnished. The guard shall
confine the cable to the area between the drum flanges. The guard shall consist of not less than
0.250 inch vertical side plates conforming to the outside radius of the drum flanges. Six bars,
0.375 inch by 1.2450 inches shall be welded to the vertical side plates. Three bars shall be
located on the top and spaced equally on the top radius and three bare shall be located on the
bottom and spaced equally on the bottom radius. The horizontal distance between the vertical
side plates and the drum flanges shall be not greater than one half the specified cable diameter.
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