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

*    (s)     Starting motor circuit breaker, if required (see 3.4.2.1).

(t)     Alternator capacity, if other than as specified (see 3.4.2.3).

(u)    Auxiliary 24-volt system with trailer receptacle, if required (see 3.4.2.7).

*    (v)    Fuel and water separator, if required (see 3.4.3.3).

*        (w)   A spark arresting muffler. if required (see 3.4.4.1). (x)        Automatic transmission, if required (see 3.4.5.3).

(y)    Two-speed transfer case for models 4x4 and 6x6, if required (see 3.4.5.4). (z)     Two-speed axle for models 4x2 and 6x4, if required (see 3.4.9.2).

(aa)   Traction control, if required (see 3.4.9.3).

(ab)   Wide base tires and wheels, if required (see 3.4.10). (ac)   Disc type wheels, if required (see 3.4.10).

(ad)   Bias ply tires, if required (see 3.4.10.1).

*        (ae)   Low profile tires, if required (see 3.4.10.1). (af)   Spare wheel or rim, if required (see 3.4.10.4). (ag)   Spare tire assembly, if required (see 3.4.10.5).

(ah)   Brake controls for use from a second towing vehicle, if required (see 3.4.11.4).

*    (ai)    Increased braking capability, if required (see 3.4.11.5).

(aj)    Tilting hood and fender assembly, if required (see 3.4.12). (ak)   Tilt type cab, if required (see 3.4.12).

*        (al)    Intermittent windshield wipers, if required (see 3.4.14). (am)  Tools, if required (see 3.4.17.1).

*    (an)   Remote control curbside rearview mirror, if required (see 3.4.21).

*    (ao)   Heated rearview mirrors, if required (see 3.4.21).

(ap)   Air operated horn, in addition, if required (see 3.4.22). (aq)   Air conditioning, if required (see 3.4.25).

*    (ar)   Front mounted winch, if required (see 3.4.26).

*    (as)   AM/FM radio, if required (see 3.4.27).

*        (at)   Cooling system protection down to -54°C (-65°F), if required (see 3.4.28.1). (au)   Extended boom for sizes 40T and 45T, if required (see 3.5.1).

(av)   If rear spades are not required on type I (see 3.5.10).

(aw)  Wheel-lift towing device, type I hydraulic wrecker only, if required for size 25T (see 3.5.12).

(ax)   Automobile towing sling, if required for sizes 35T, 40T and 45T (see 3.5.13(h). (ay)   Hydraulic fluid type MIL-H-83282, if required (see 3.5.15.3).

(az)   Rear mounted winch, if required (see 3.6.14).

6.3  Performance prediction.  SAE Truck Ability Prediction Procedure computations and computations for low speed and maximum geared speed will be required by the contract.  The SAE Work Sheet Item 1 should include vehicle model number, engine model number, and vehicle type, class, size and model.  Unless other conditions are cited in the contract, computations

should be made for normal atmospheric pressure, normal ambient air temperature, and still, dry

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