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

FM 3-22.1B-17. PREPARATIONCrews should know the boresight procedures described in TM 9-2350-252-10-2. Allturret weapons must be mounted and operational. A boresight kit and turret tool kit isrequired. Crews use the following checklist to prepare for boresighting with the close-inboresight panel:• Master power ON.• Turret power ON.• Night vision switch ON.• Turret, gun, and TOW select levers in POWER (to raise TOW launcher).• TOW launcher raised.• Turret azimuth selection lever in MANUAL.• Gun elevation selection lever in MANUAL.• TOW elevation drive selection lever in POWER.• Day and thermal ballistic sight cover doors open.• Sensor select switch set on NEUTRAL.• Range control knob set at "0."• Reticle brightness turned all the way to the right.• Magnification set on HI.• AP or HE selected on weapons control panel.• Status indicator displays ammunition and range index.• Gun reticle displayed.• Turret travel lock disengaged.B-18. WEAPONS AND SIGHT ALIGNMENTThe crew aligns weapons and sight as follows:a. Perform the boresight kit accuracy test before aligning the sight and weapon.b. To control backlash, lay the 25-mm gun so that the gun-lay pattern endsin elevation.(1) (Helper) rotate the telescope until the eyepiece faces upward.(2) (Helper) align the boresight reticle with the 25-mm cross on the panel.(a) Tell gunner to align the top of the 10-mil circle of the boresight reticle with the25-mm cross on the panel (Figure B-44).(b) Tell gunner to align the boresight reticle with the 25-mm cross on the panel(Figure B-45).NOTE:Traverse the turret, or elevate or depress the gun, only after aligning the TOWweapon system.c. Align the ISU day reticle. The neutral sensor-select setting works better on bright,sunny days.(1) Move the sensor select switch to CLEAR or NEUTRAL for the best view of theISU reticle and panel.(2) Align the ISU reticle with the ISU cross on the panel using the AZ and ELboresight adjustment knobs.B-32