MIL-T-45379 Tank, Combat, Full-Tracked, 105 Mm Gun, M60A3-TtsThis specification establishes the construction, performance and inspection requirements for M60A3 full-tracked combat tank equipped with a Tank Thermal Sight TTS.

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MIL-T-45379D(AT)

4.6.4.9.5.2.10 FEED switch. To determine conformance to 3.5.9.5.2.10, the FEED switch shall be tested for proper operation as specified during ranging operation tests.

4.6.4.9.5.2.11 LIGHT rheostat. To determine conformance to 3.5.9.5.2.11, the LIGHT control shall be operated through its full range while observing the panel lights and range readouts for proper operation as specified.

4.6.4.9.5.2.12 Emergency power switch. To determine conformance to 3.5.9.5.2.12, the computer power shall be turned off, the emergency power switch shall be actuated and the LRF shall be observed for normal operation.

4.6.4.9.5.2.13 Battle range switch. To determine conformance to 3.5.9.5.2.13, the battle range switch shall be actuated as the computer and LRF is observed for proper operation as specified.

4.6.4.9.5.2.14 Laser self test. To determine conformance to 3.5.9.5.2.14, the laser mode control switch shall be placed in TEST position and input as specified in table IX shall be applied while all controls are observed for proper operation. Tests shall be conducted with ranging inputs from the commander's station and from the gunner's control handle.

4.6.4.9.5.2.15 Laser system lasing. To determine conformance to 3.5.9.2.15, targets as described shall be located at the specified distances and lasing operations in accordance with all requirements of 3.5.9.2.15 and table X shall be performed. Tests shall be conducted to verify correct operation from the gunner's and commander's station and with the gunner's remote range switch. During these tests correct LRF operation per the requirements of 3.5.9.5.2.1 through

3.5.9.5.3.14 shall be verified.

CAUTION: WHEN CONDUCTING THESE TESTS, SAFETY PRECAUTIONS SHALL BE EXERCISED (SEE 6.3.2).

4.6.4.9.6 Computer system.

4.6.4.9.6.1 Computer self test. To determine conformance to 3.5.9.6.1, the gunner's computer control unit mode selector switch shall first be placed in the LAMP position and then in the TEST position; the lamps shall be observed for operation as specified.

4.6.4.9.6.2 Common zero and zeroing. To determine conformance to 3.5.9.6.2, each jump and zeroing knob shall be checked as follows:

a. Elevation. The elevation common zeroing knobs of the gunner's control unit shall be rotated at +3.0 and -3.0 mil positions and the output unit superelevation counter shall be observed for a corresponding 3.0 mil count within + 0.30 mil. The knob shall be rotated back to zero and the counter again observed, this time for return to its original count within + 0.30 mil.