Engine coolant temperature gage or high coolant temperature or low coolant level
red indicator warning light
High coolant temperature or low coolant level alarm buzzer
Speedometer with recording odometer
Driver's compartment ventilator other than window
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.
3.4.20 Rearview mirrors. Outside rearview mirrors shall be mounted on both sides of the
cab. The mirrors shall have flat and convex areas. The flat portion shall have not less than
320 square centimeters (cm2) (50 square inches) of reflective area. The convex portion shall have
not less than 155 cm2 (24 square inches) of reflective area and a radius of curvature of not less
than 510 mm (20 inches). The convex portion shall be attached to the lower mirror supporting
arm and shall not interfere with use of the flat mirror. The mirrors shall have not less than two
supporting arms. When specified (see 6.2), the curbside flat mirror shall be of the motorized type,
with remote control. The mirror motor shall provide not less than 60 degrees horizontal rotational
viewing range. When specified (see 6.2), the flat mirrors shall be electrically heated. Mirror
remote and heating controls shall be within reach of the seated driver.
3.4.21 Horn. The manufacturer's standard electric horn shall be furnished. When
specified (see 6.2), in addition, and air operated horn shall be furnished.
3.4.22 Engine hour meter. An engine hour meter having a totalizing mechanism of not
less than 9,999 hours shall be furnished for the chassis engine to register accurately the number of
hours of operating time. The meter shall be of rugged construction to insure continuous trouble
free performance under severe operating conditions. The engine hour meter shall be mounted on
the cab instrument panel or in the engine compartment in a readable location.
3.4.23 AM/FM radio. When specified (see 6.2), the manufacturer's standard AM/FM
radio shall be provided.
3.4.24 Servicing and adjusting. Prior to acceptance of the vehicle by the Government
inspector, the contractor shall service and adjust each vehicle and its mounted equipment for
operational use including at least the following: alinement of lights, adjustment of the engine and
brake systems; filling and charging of batteries; alinement of front wheels; inflation of all tires;
complete lubrication of chassis, engine and running gear withgrades oŁ lubricants recommended