 |
|||
|
|
|||
| ||||||||||
|
|  MIL-T-45379D(AT)
3.3.1 Sealing. Unless otherwise specified herein all seats and sealer shall prevent the
entrance of water and foreign matter. Static seals shall provide an interference fit of sealing
surfaces preventing the loss/leakage of fluids intended to be contained by the seals. Dynamic
seals shall prevent fluid leakage in the form of a drip (see 6.5) when the vehicle is standing idle.
Evidence of lubricant at seals specifically designed to allow exit of flushed lubricants shall be
permitted (see 4.6.2.1).
3.3.1.1 Hatch seals. Hatch seals shall prevent leakage of water into the crew compartment
(see 4.6.2.1.1).
3.3.1.2 Vision device/receptacle seals. When installed, the gunner's and commander's
periscopes and the driver's vision blocks shall be sealed to prevent any entry of water into the
vehicle. The driver's night vision viewer shall not permit water entry in excess of continuous
drip into the vehicle (see 4.6.2.1.2 and 6.5).
3.3.2 Hydraulic lines. Provisions shall be made to assure internal cleanliness of hydraulic
lines and connections (see 4.6.2.2).
3.3.3 Ventilation system. The ventilation system shall prevent concentration of carbon
monoxide (CO) in the occupied portions of the vehicle in excess of 0.01 percent, under any
condition of operations (see 4.6.2.3).
3.3.4 Controls. When installed in accordance with applicable drawings, all electrical,
mechanical, and hydraulic controls shall operate without malfunction throughout all ranges of
operation under all vehicle operating conditions (see 4.6.2.4).
3.3.5 Adjustment mechanisms. When installed and adjusted in accordance with drawings,
all adjustment mechanisms shall function properly, and maintain adjustment settings during all
vehicle operating conditions (see 4.6.2.5).
3.3.6 Vision devices/receptacles. Provisions shall be made to assure that receptacles
incorporated in the vehicle will accept applicable vision devices without binding or interference.
The gunner's and commander's periscope receptacles shall accept the periscopes, and, when the
periscopes are installed, removed and reinstalled, the line sight of the periscopes shall not deviate
more than 0.2 mil from the line of sight of initial installation setting (see 4.6.2.6).
3.3.7 Gas particulate system.
3.3.7.1 Air flow. The air flow shall be 3.0 to 4.5 cubic feet (cu ft) per minute at each crew
position outlet when the other crew position hoses are connected to their connector orifice
assemblies (see 4.6.2.7.1).
3.3.7.2 Air heater. When the air heater at each crew position is operated, the heater light
shall illuminate, and the heater shall warm the air at least 10 degrees Fahrenheit (F) over
ambient within 10 minute period at an input voltage range of 24 to 30 volts (V). Thermostats of
each heater shall function to maintain temperature settings of their control knobs (see 4.6.2.7.2).
4
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals