Operator's Manual

2.1.1 Hood
The HWS is equipped with a protective hood. This hood is pre-assembled at the factory. Should
your hood require repair or replacement, please contact your unit armorer for repair, replace-
ment, or contact the manufacturer (L3 EOTECH) for repair or replacement.
2.1.2 Battery
Two initially supplied (2) AA alkaline batteries power the 512 HWS. The HWS is designed to
maintain constant brightness at a particular setting as the battery drains down. The reticle
brightness will not fade gradually as the battery runs down, but rather, shut down abruptly. The
first indication of the battery draining is the reticle blinking when the unit is turned on (see
Electronic Features 2.1.4). Another indication of a low battery is the reticle pattern blinking off
and on during recoil. With high recoil guns, this can occur before the battery check indicates low
battery condition. If the reticle pattern blinks off and on during recoil or turns off suddenly,
replace the battery. Please read and follow the battery replacement and battery check proce-
dures described in this Manual. It is always good practice to replace the battery with a fresh one
before a mission.
Alkaline batteries from different manufacturers are not all constructed the same way. Tests
show some brands are more susceptible to degradation by the shock of recoil. We recommend
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