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|  MIL-T-45379D(AT)
e. Condition after run. After completion of the break-in run, the engine shall idle
between 700 to 750 rpm. Prior to vehicle submission to the Government for
acceptance, all suspension wheel bearings shall be checked to determine if
adjustments are correct and readjusted, as required. There shall be no defects
indicative of damaged components, or maladjustments that may cause faulty vehicle
operation.
3.4.1 8-mile road test. After the break-in run each vehicle shall be operated a distance of
8 miles or more by the contractor before the acceptance tests specified in table XIX (see 4.6.3.1).
3.5 Performance.
3.5.1 Vehicle mobility. The complete vehicle, combat loaded or with a simulated load of
equal weight (see 3.3.8), and serviced, shall perform as specified herein. Ammunition may be
simulated in size and weight. The vehicle, serviced (see 3.4a) and equipped for existing climatic
conditions, shall operate as specified without special equipment.
3.5.2 Power plant and power train. The power plant (engine and transmission) shall function
throughout all gear and speed ranges without loss of lubricants or damage that may cause failure
of vehicle to perform any of the mobility requirements. The power train (power plant, final
drives, and track) and associated controls shall be capable of operation throughout all speed and
steering ranges without binding of linkages, loss of lubricants, grabbing, chattering, or slippage
when controls are applied to steer, stop, and hold vehicle (see 4.6.4.2).
3.5.3 Speeds.
3.5.3.1 Level road speeds. The vehicle shall operate at sustained speeds of 30 mph and at
2.5 mph on level ground without damage to the power plant and power train (see 4.6.4.3.1).
3.5.3.2 Grade speeds. Vehicle shall operate at a sustained speed of 10 mph while ascending
a 10 percent grade, and at 20 mph while ascending a 3 percent grade (see 4.6.4.3.2).
3.5.3.3 Level road drift. When traveling between 25 and 30 mph in a straight line without
manual steer correction, the vehicle drift shall not exceed 3 ft in 100 ft (see 4.6.4.3.3).
3.5.3.4 Acceleration. The vehicle shall accelerate from a standing start on level ground
through a distance of 200 ft within a time period of 13 seconds (see 4.6.4.3.4).
3.5.3.5 Climbing. The vehicle shall ascend longitudinal grades of 60 percent in forward and
reverse gear without stalling or damage to power plant and powertrain. The vehicle shall operate
on right and left side slopes of 30 percent (see 4.6.4.3.5).
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