MIL-T-62491 Trucks, Wrecker: 4540 To 40 820 Kilograms 5-Ton To 45-Ton Lifting Capacity, Modified CommercialThis specification covers all commercial, non-tactical wreckers procured for military use. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62491C

3.4.19  Controls and operating mechanisms.  All controls and operating mechanisms shall be located for left-hand drive.  Controls shall be complete and conveniently operable by the driver. Lever controls shall be designed and located to permit easy entrance and exit of the operator to and from the driver's compartment.  Instruments and controls shall be identified as to their function and installed in a manner to facilitate removal and servicing.  Instruments shall be panel mounted.  All instruments shall be visible to the driver when seated in the driving position.

3.4.20  Accessories and equipment.  Chassis equipment shall be complete with all accessories furnished as standard equipment by the manufacturer.  The following minimum equipment shall be furnished:

(a)   Key operated ignition switch

(b)   Ammeter, charging indicator or voltmeter

(c)   Fuel gage

(d)   Oil pressure gage or red indicator warning light

(e)   Engine temperature gage or high coolant temperature or low coolant level red indicator warning light

(f)    Except for class 10, a high coolant temperature or low coolant level alarm buzzer

(g)   Speedometer with recording odometer

(h)   Ash receptacle

(i)    Dual sunvisors

(j)    Driver's compartment ventilator other than window

(k)   Tachometer.

*    3.4.21  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 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.

3.4.22  Horn.  The manufacturer's standard electric horn shall be furnished.  When specified

(see 6.2), except for class 10, in addition, an air operated horn shall be furnished.

3.4.23  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

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