MIL-T-45380 Trucks, Maintenance: Earth Auger, Turntable Base, Diesel Engine Driven, 28,000 Pounds Gvw, 4X4, Modified CommercialThis specification covers an earth auger with a turntable, mounted on a diesel engine driven, four wheel, four wheel drive, modified commercial truck chassis having a minimum gross vehicle weight GVW of 28,000 pounds for normal operating conditions.

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MIL-T-45380E(AT)

(ai)    Tools, if required (see 3.4.16.1).

(aj)    Gages, if required in lieu of indicators (see 3.4.19). (ak)   Automatic engine shutdown, if required (see 3.4.21). (al)    Air operated horn, in addition, if required (see 3.4.21). (am)  Front mounted winch, if  required (see 3.4.22).

(an)   Engine hour meter, if required (see 3.4.23). (ao)   Back-up alarm, if required (see 3.4.24).

(ap)   AM/FM radio, if required (see 3.4.25).

*          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 and class.  Unless other conditions are cited in the contract computations should be made for normal atmospheric pressure, normal ambient air temperature, and still, dry air.  The factors to be used in predicting truck ability (see 3.3.1.1) are established as follows for the corresponding SAE Truck Ability Prediction Proceed Tables:

Table 1                                    -  Tire Factor. This factor must relate to the size of tires furnished by the contractor in accordance with this specification.

Table 2                                    -  Altitude Factor.  1.00

Table 3                                    -  Rolling Factor.  1.613

Table 4                                    -   Area Factor.  0.173

Table 5                                    -   Velocity Factor.  250.0

Table 6                                    -   Altitude Factor.  1.00

Table 7                                    -  Chassis Friction Horsepower.  Use applicable power unit GVW ( to nearest, higher 1000 pounds) and the engine rpm (to nearest 100 revolutions) which is required for

50 mph geared speed. For GVW and engine speed

beyond  the range of this table, factors shall be extrapolated.

Table 8                                    -  Grade factor.  0.75

Table 8A                                 -  Correction Factor.  Not required.

Table 9                                    -  Road Factor.  0.0.

*          6.4  Subject term (key word) listing.

Auger unit winch Auxiliary engine Boring assembly Leveling mechanism Power transmission Turntable.

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