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|  MIL-T-62320C
When specified (see 6.2), an ammeter or voltmeter gage, an oil pressure gage, and a 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 be of the combination type having 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 20 square inches of reflective area. The mirrors shall have not less than two supports.
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.
*. 3.4.22 Front mounted winch. When specified (see 6.2), a winch assembly, mounted on the
front of the vehicle and powered by the manufacturer's standard power takeoff or powered
hydraulically, shall be provided. The winch shall conform to SAE J706. The winch shall be of
the 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
entry or exit of the driver. The winch shall have a rated single line pull capacity of not less than
20,000 pounds pull on the bare drum. The winch line speed on the bare drum shall be between
15 and 30 feet per minute at an engine speed equal to 35 percent of engine governed speed. The
winch shall be wound with not less than 185 feet of 5/8-inch diameter, preformed, 6x37,
improved plow steel, wire strand core cable and shall be equipped with 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 drive line 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
1/4-inch vertical side plates, conforming to the outside radius of the drum flanges. Six bare,
3/8 inch by 1-1/4 inches, shall be welded to the vertical side plates. Three bars shall be located
on the top and spaced equally on the bottom radius. The vertical distance between the vertical
side plates and the drum flanges shall be not greater than half the specified cable diameter.
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