MIL-T-62735 Trucks And Truck Tractors: Modified Commercial, General Specification ForThis specification covers general requirements for the classes, models and types of modified commercial trucks indicated in the specification title above and in 1.2 below. This specification is intended only as a document to be referenced in detail specification sheets that must, as a minimum, cover detailed truck body requirements and specify the model and class required from table I.

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MIL-T-62735

3.3.13.1                                            Oil lubricated wheel bearings and axle spindles.

3.3.14                                               Disc wheels.

3.3.14.4                                            Spare carrier, except truck tractors and dump

trucks.

3.3.18                                               A 100 ampere alternator in lieu of the 85 ampere

standard.

3.3.30                                               Tools.

3.10.1                                               Treatment and painting for Marine Corps NTVs.

3.10.3                                               Marking for Marine Corps NTVs.

3.10.6                                               Rustproofing.

3.2  Performance and durability requirements.

3.2.1  Speeds and gradeability.  High and low speed requirements shall be met with truck tractors loaded to specified GVW and GCW and with all other trucks loaded to specified GVW and when specified (see 3.1.9) GCW.

3.2.2  High speed gradeability.  The vehicle shall ascend the standard continuous grades specified in table IV at 80 kilometers per hours (km/h) (50 miles per hour (mph)) 69 km/h

(43 mph) for 72 600 kg (160,000 pounds) GCW and larger.  When specified (see 6.2), the

vehicle shall ascend the optional continuous grades specified in table IV at these speeds. Gradeability requirements shall be met with the main transmission and auxiliary transmission, if furnished, in direct drive and, when a multispeed axle is furnished, with the axle in high speed range.

3.2.2.1  Gradeability calculations.  Gradeability shall be calculated in accordance with SAE J688.  (See 6.3 and use the 80 km/h (50 mph) factors or 69 km/h (43 mph) factors indicated, as applicable).

TABLE IV.  Gradeability.

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