 |
|||
|
|
|||
| ||||||||||
|
|  MIL-T-62531(AT)
3.7.5 Braking ability. The vehicle, fully equipped and with highway payload and towed
load, shall be decelerated, held, and controlled by use of the brakes, under the conditions
specified for each braking system. Road surface shall be smooth, dry, concrete. The vehicle
braking system will be designed to meet all the performance and configuration requirements of
FMVSS's 105 or 121, whichever is appropriate for the type of brake system installed in addition
to the requirement stated herein. Vehicles equipped with full-air brakes shall include an alcohol
aspirator with an unbreakable transparent container and an automatic moisture ejector
(see 4.7.5).
3.7.5.1 Service brakes. Application of service brakes shall stop, hold, and control the
vehicle when ascending and descending a 60 percent grade. On relatively level roadway,
application of service brakes shall bring the vehicle to a complete stop, from a speed of
______ km/h within ______ meters, measured from point of brake application (see 4.7.5.1).
3.7.5.2 Parking brake. The parking brake shall be capable of holding the vehicle motionless
with rated payload and towed load, at GVW on a 40 percent grade either headed up or
downgrade, on dry, hard surface that is free from loose material, in accordance with
MIL-STD-1180. An indicator light will be provided to alert the crew when the parking brake is
engaged. This energy shall be isolated from any common source and used exclusively for the
operation of the parking brake. The parking brake system shall be held in the applied position by
energy other than fluid pressure, air pressure, or electric energy. The parking brake shall be such
that it cannot be released unless adequate energy is available upon release of the parking brake to
make immediate further application. "Park" position (transmission shift lever) is required.
"Park" position mode must comply with the above parking brake requirements including release
of "Park" mode on a 40 percent grade (see 4.7.5.2).
3.7.5.3 Emergency brakes. The emergency brake system, in the event of a single point
failure in the service brake system, shall be able to stop the vehicle and be capable of being
modulated by the service brake control. Emergency braking shall include a means of providing
adequate stopping in the event of a trailer breakaway (see 4.7.5.3).
3.7.6 Cramping angle. Front wheel cramping angle shall be not less than degrees, measured
at the wheel on the inside of the turning circle. Angle stops shall be provided, and adjusted
(within a tolerance of plus ______ degree, minus ______ degree) to provide the maximum safe
cramping angle. When adjusted, axle stops shall be so set that the angle adjustment cannot be
readily altered and shall positively limit the cramping angle to the maximum angle of the stop
adjustment (see 4.7.6).
3.7.7 Cruising range. Vehicle with rated payload and rated towed load shall operate for not
less than ______ kilometers, at average road speed of ______ m/h on hard surface roads over an
average rolling terrain, without refueling (see 4.7.7).
3.7.8 Ground clearance. The vehicle with rated payload shall have a ground clearance of not
less than ______ centimeters (cm) (see 4.7.8).
15
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals