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

FM 3-22.1b. Ensured turret drive was off.c. Placed the gun elevation and traverse select levers in MANUAL and the TOWselect lever in POWER.d. Opened the ballistic sight doors.e. Adjusted the focus, reticle, and symbology brightness and the image contrast andbrightness on both the TAS and the CIV sights.f. If using FLIR, adjusted gain, level, polarity, and zoom as needed.2. Inserted the boresight telescope into the 25-mm adapter.a. Inserted the tapered shaft of the telescope snugly into the tapered hole of theadapter with the red index mark on the adapter in the 12 o’clock position. Thispositioned the telescope's eyepiece in the 3 o’clock position.b. Removed the objective eyepiece lens caps from the telescope.c. Unfold and attached the red warning flag to the telescope's objective-lens barrel.3. Inserted the boresight telescope assembly into the 25-mm gun barrel.a. Inserted the boresight telescope assembly into the 25-mm gun barrel with the redindex mark on the adapter in the 12 o’clock position. Ensured that the red mark onthe 25-mm adapter aligned with the red index mark on the telescope's body. Thispositioned the telescope's eyepiece in the 3’oclock position.NOTE:Regardless of which end you look in, the rifling spins to the right.b. Ensured that the tapered muzzle cone of the boresight telescope assembly seatedfirmly on the muzzle brake of the 25-mm gun barrel.4. Positioned the boresight telescope assembly crosshairs on the top left-hand corner ofthe boresight panel.a. Had helper direct the gunner to position the telescope crosshair on the top lefthandcorner of the boresight panel using manual traverse and elevationhandwheels.b. Turned the boresight telescope assembly clockwise using the knurled section of25-mm adapter only. Turned the adapter within the gun barrel.5. Collimated the boresight telescope assembly.a. While gripping the knurled section of the 25-mm adapter, rotated the index mark(the red dot) to the 6 o’clock position. This should have put the eyepiece at the9 o’clock position. Ensured that the tapered muzzle cone of the adapter seatedagainst the muzzle brake of the 25-mm gun barrel.b. Viewed the boresight panel. If the aim point had moved from its original position,you adjusted the reticle (Step 6). If no adjustment was needed, you went to Step 7.6. Adjusted the crosshairs in the boresight telescope reticle.a. Rotated the adjustment protective shroud on the boresight telescope to expose theadjustment knobs.b. Using the reticle adjustment knobs on the telescope, moved the reticle one-half ofthe difference between the previous point and the new position, in both azimuthand elevation.c. Had the gunner use the manual elevation and traverse handwheels to move theturret, in order to put the telescope crosshairs back on top of the left corner of theboresight panel.A-43