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|  MIL-T-45379D(AT)
4.6.2 Design and construction. To determine conformance to 3.3, a visual, dimensional, and
functional inspection shall be performed to determine if the vehicle has been constructed to the
installations defined on Drawings 8750019. A walk-around inspection of the outside and inside
of the vehicle shall be performed and the results entered in the FIR. Record all deficiencies.
Visually examine all components for condition, mounting, location, clearance, etc. Manually
operate all items where practical.
4.6.2.1 Sealing. Conformance to 3.3.1 shall be determined at various stages of acceptance
inspection.
4.6.2.1.1 Hatch seals. To determine conformance to 3.3.1.1 all entry hatches shall be closed
and locked and 3 gallons of water sprayed on each hatch over a 3 minute period. All entry
hatches shall be checked for leakage. The driver's escape hatch shall be checked in conjunction
with 4.6.4.6.1.
4.6.2.1.2 Vision devise/receptacle seals. To determine conformance to 3.3.1.2, the driver's,
gunner's and commander's periscopes, and all vision blocks shall be checked for leakage in
conjunction with 4.6.2.1.1.
4.6.2.2 Hydraulic lines. To determine conformance to the requirements of 3.3.2, after all
road testing, the vehicle shall be given a thorough examination for hydraulic leaks. Any drip that
occurs when vehicle has been standing idle with the components at ambient temperature or any
leak at a static fit, metal-to-metal, or gasket combination shall constitute failure to comply.
4.6.2.3 Ventilation system. To determine conformance to 3.3.3, an inspection specified
below shall be performed as applicable.
4.6.2.3.1 Vent blower. Conformance to 3.3.3 shall be determined during acceptance
inspection by observing the operation of the vent blower while performing road tests and when
the vehicle is idling.
4.6.2.3.2 Contamination level. To determine conformance 3.3.3 tests shall be conducted in
accordance with the procedure specified in USA TECOM 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. 105mm gun firing contamination levels shall be determined for one 3-round salvo for
each type of ammunition designated for 105mm weapon.
c. Secondary weapon contamination levels shall be determined for one 220-round burst
fired from each vehicle machine gun simultaneously.
CAUTION: WHEN CONDUCTING THESE TESTS, SAFETY PRECAUTIONS
SHALL BE EXERCISED.
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