MIL-T-45379D(AT)
3.5.3.6 Engine starting on grades and slopes. When standing on a 60 percent grade, for not less than 2 minutes, with engine idling under no load between 700 and 750 rpm, the engine shall be stopped for not less than 2 minutes. The engine shall restart in not more than 1 minute when headed either up or down grade. A similar engine stopping and starting test shall be accomplished on 30 percent right and left side slopes (see 4.6.4.3.6).
3.5.4 Braking and drift.
3.5.4.1 Stopping. The vehicle traveling at 20 mph shall stop within 60 ft from the point of brake application, with drift not to exceed 4 ft when stopping (see 4.6.4.4.1).
3.5.4.2 Holding. With the vehicle standing on a 60 percent grade with service brakes applied, the vehicle shall be held stationary when headed either up or down grade. With the parking brake engaged and all other holding devices inoperative, the vehicle shall be held stationary when headed either up or down grade (see 4.6.4.4.2).
3.5.5 Turning. The vehicle shall turn 360° to the right and left in pivot, in neutral steer, within a circle 35 ft in diameter (see 4.6.4.5).
3.5.6 Fording.
3.5.6.1 Shallow water. The vehicle shall ford a level, hard-bottom body of water 48 inches in depth, including wave, without special equipment. With the vehicle standing in water
48 inches in depth for 30 minutes, the accumulation of water shall be not more than 1.5 inches on the hull floor measured in the center of the "V", and there shall be no water accumulation in the
left or right brake housings (see 4.6.4.6.1).
3.5.6.2 Deep water. The vehicle shall ford a level, hard bottom body of water 8 ft in depth when a fording kit is installed. With the vehicle standing in water 8 ft in depth for 30 minutes and the bilge pump operating as required, the accumulation of water shall not be more than
3 inches on the hull floor in the center of the "V", and there shall be no water accumulation in
the left or right brake housings (see 4.6.4.6.2).
3.5.6.3 Engine starting in shallow water. With the vehicle standing for 30 minutes in water up to 48 inches in depth, the engine operating at 100 rpm for 15 minutes, then stopped for
15 minutes, the engine shall restart in not more than 3 minutes. All accessories shall function
satisfactorily during and after fording operations (see 4.6.4.6.3).
3.5.6.4 Shallow water contamination. After fording operations, the water contamination content of the transmission, engine, final drives and suspension system lubricants shall not be more than 2 percent by volume (see 4.6.4.6.4).
3.5.6.5 Inflatable seal and pump. The pump shall be capable of inflating the seal to 25 psi. The force required to operate the pump plunger shall not exceed 50 lbf ft (see 4.6.4.6.5).
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