MIL-T-45379D(AT)
CAUTION: WHEN CONDUCTING THESE TESTS, SAFETY PRECAUTIONS SHALL BE EXERCISED (SEE 6.3.1).
4.6.2.16 Battery access door. To determine conformance to 3.3.16, a force gage shall be attached to the battery door latch and the force required to open the latch shall not exceed that specified. The door shall open and close freely and the latch shall be free of paint.
4.6.2.17 Electrical system.
4.6.2.17.1 Power plant electrical. To determine conformance to 3.3.17.1, during operation of the vehicle, the driver's instrument panel shall be observed for proper display of engine functions as specified.
4.6.2.17.2 Lights. To determine conformance to 3.3.17.2, the internal and external lights shall be tested for operation as specified during and after the 8-mile road test.
4.6.2.17.3 Interior lighting. To determine conformance to 3.3.17.3, the hatches shall be closed and each crew position domelight shall be turned on and the intensity of each raised and lowered. Each light shall perform as specified.
4.6.2.17.4 Hull-to-turret slipring. To determine conformance to 3.3.17.4, the slipring shall be checked for positive electrical contact for 360° of turret rotation.
4.6.2.17.5 Cupola slipring. To determine conformance to 3.3.17.5, the cupola slipring circuits shall be checked for positive electrical contact for 360° of cupola rotation.
4.6.2.17.6 Alternator voltage. To determine conformance to 3.3.17.6 , the alternator voltage shall be checked at the battery at existing ambient temperature with the engine operating at
1000 rpm. The voltage reading shall fall within the limits specified in figure 7 and be not less than 18.5 V when the hydraulic power pack is energized.
4.6.2.17.7 Driver's night viewer power circuit. To determine conformance to 3.3.17.7, connect a one ampere load to the driver's night viewer connector. Activate the master battery control switch and the driver's night viewer switch. Measure the voltage drop between the vehicle battery positive terminal and the night viewer connector. The voltage drop shall be no greater than 0.2 V.
4.6.2.17.8 Air cleaner blower motors. To determine conformance to 3.3.17.8, the air cleaner blower outlets shall be checked for proper air flow during engine operation, and no flow when
the engine is not operating properly.
4.6.2.17.9 Engine manifold heater. To determine conformance to 3.3.17.9, the pushbutton switch on the purge pump handle and the starter switch shall be actuated and pin "A" of the engine electrical disconnect shall be checked for proper voltage.
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