MIL-T-62222 Tank, Combat, Full-Tracked: 105Mm Gun, M48A5This specification covers one type of full-tracked, armored combat vechiles, which mounts a 105MM gun as the primary weapon.

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MIL-T-62222(AT)

4.6.4 Ventilation system.

4.6.4.1 Vent blower. To determine conformance to 3.4.3.1, the operation of the vent blower shall be observed during road tests and when the vehicle is idling.

4.6.4.2 Carbon monoxide. To determine conformance to 3.4.3.2, tests shall be performed in accordance with procedures specified in the USATECOM material test procedure 2-2-614, dated

18 June 1968, except as follows:

a. Firing tests shall be conducted with the ventilation system and engine operating, and all hatches closed.

b. Main gun firing contamination levels shall be determined for one three round salvo for each type of ammunition designated for the main weapon.

c. Secondary weapon contamination levels shall be determined for one 200 round burst fired from each vehicle machine gun simultaneously.

CAUTION: When conducting these tests, safety precautions shall be exercised (see 6.3).

4.6.5 Controls. To determine conformance to 3.4.4, all controls shall be operated, adjusted, and checked for functional requirements. The full requirement cannot be met until the vehicle has been subjected to all specified environments and all control functions as specified.

4.6.6 Adjustment mechanisms. To determine conformance to 3.4.5, all adjustment mechanisms requiring adjustment shall be checked for proper adjustment, function and proper installation in accordance with applicable drawings.

4.6.7 Vision devices and receptacles. To determine conformance to 3.4.6, the vision device receptacles shall be checked for the ability to receive and hold vision devices without binding or interference; the gunner's periscope shall be checked for ability to maintain sighting capabilities as specified.

4.6.8 Gas particulate system.

4.6.8.1 Air flow. To determine conformance to 3.4.7.1, the air flow at each crew position shall be checked for 3.0 to 4.5 cfm flow with the gas particulate system operating and other crew position outlets capped with a gas mask type air flow restricter.