2003 US Army BRADLEY GUNNERY 503p.pdf - Survival Books

FM 3-22.1Figure B-47. Locknut, crank, and thumbscrews.Figure B-48. Horizontal adjustment lock screwand horizontal adjustment screw.(2) (Helper) insert the 7.62-mm adapter and boresight telescope into the coaxialmachine gun. He then tells the gunner to align the boresight reticle with the COAX crosson the panel.(a) Tell the gunner to use the AZ knob on the gun to align the boresight AZ crosshair(vertical) with the vertical line on the COAX cross.(b) Tells the gunner to use the EL knob on the gun to align the boresight EL crosshair(horizontal) with the level line on the COAX cross.f. Align the ISU night reticle.(1) Move sensor select switch to NIGHT.(2) Use black hot to make the ISU reticle more visible on the "T" of the panel, so setthe polarity switch (PLRT) to that (black hot--BH).(3) Adjust the thermal sight until you can see the "T" clearly:• Turn the CON knob all the way to the right.• Turn the BRT knob all the way to the left.• Turn the BRT knob to the right until you can see the "T" on the panel.• Focus on the "T" using the focus ring.• Turn the CON knob left about one-quarter turn.• Turn the BRT knob to the right until the "T" becomes clearer.• Repeat focus ring, CON knob, and BRT knob adjustments, if necessary.(4) Align the ISU reticle with the "T" on the panel using the night boresight EL andAZ knobs (Figure B-49, page B-36).g. Align the TOW weapon system.(1) Move the sensor select switch to CLEAR or NEUTRAL.(2) Place the 25-mm gun elevation select lever in the POWER mode.B-35