3.2.10 Asbestos. Asbestos material shall not be used in any form in any part of the
3.3 Performance. Performance requirements for model 4x4 and 6x6 vehicles shall be
met with the front wheel drive disengaged and with front wheel hubs (when furnished) unlocked,
except that a vehicle equipped with interaxle compensating devices shall meet performance
requirements with the front wheel drive engaged.
3.3.1 Speeds and gradeability. High and low speed requirements shall be met with the
vehicle loaded to the specified GVW.
184.108.40.206 High speed gradeability. The vehicle shall ascend continuous grades specified in
table IV at 50 miles per hour (mph). Gradeability requirements shall be met with the main
transmission in direct drive, and when a multispeed axle is furnished, with the axle in high speed
range. Gradeability shall be verified with calculations in accordance with SAE J688 (see 6.3).
TABLE IV. Gradeability.
220.127.116.11 Low speed. Low speed for vehicles with a manual transmission shall be
calculated with the engine operating at not less than 35 percent of the recommended governed
speed, and shall provide not more than the vehicle speed specified in table V for the
corresponding number of available speeds.
TABLE V. Vehicle low speed requirement.
4 or 5
9 or 10