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MILES BORESIGHTING & ZEROING

NTC BORESIGHTING & ZEROING
M2A2 TOW & 25M

M2/M3
Table of Contents
M1 Tank Guides
* 25mm BORESIGHTING
  1. Turn on master and turret power.

  2. Switch ARM-SAFE-RESET switch to ARM on weapons control box.

  3. Select AP/HI on weapons control box.

  4. Select LO AMMO OVERRIDE on weapons control box, insure indicator light is not lit.

  5. Select range "0" on RANGE DIAL.

  6. Turn on NIGHT SIGHT.

  7. Insure boresight adjustment knobs are on 0.

  8. Using manual controls to lay 25mm reticles center mass of 2000m target.

  9. Looking through the telescope on the 25mm transmitter, loosen the lock knob and put the cross hairs center mass of the 2000m Target.

  10. Tighten the lock knob ensuring cross hairs remain center mass of the 2000m boresight target.

  11. BORESIGHT IS NOW COMPLETE.

* 25mm ZEROING

  1. Gunner aims at 2000m target and fires, (Verifying Boresight) if target flashes stop and go to next step, if no target flash manually move gun around target until target flashes and go to next step.

  2. Once above is accomplished manually adjust Gunner's reticle center mass of 2000m target.

  3. Have gunner manually move gun down target form and simultaneously fire gun until target stops flashing, he then will manually align the reticle center mass of his target using the boresight knobs.

  4. The gunner will now manually move the gun up and simultaneously fire gun until he has a miss. Gunner will now refer his reticle down to center mass of target with the boresight knobs.

  5. To find the mean for DEFLECTION, do the same as steps 3 and 4, but going from left to right.

  6. Now refer NIGHT SIGHT reticle to DAY SIGHT reticle using boresight knobs.

  7. DAY and NIGHT SIGHTS are now ZEROED.

  8. Manually move 25mm center mass of 2000m target and fire for effect.

* TOW BORESIGHTING

  1. Turn on MASTER and TURRET POWER.

  2. Move MAG switch to HIGH until it clicks.

  3. Raise TOW LAUNCHER.

  4. Press TOW button on TOW CONTROL BOX.

  5. Press TOW TEST button on TOW CONTROL BOX.

  6. Press MISSILE TUBE 1 or 2 BUTTON. Insure TOW TUBES are in DRY FIRE and loaded in launcher ports 1 and 2.

  7. Switch ARM-SAFE-RESET switch to ARM on weapons control box.

  8. Select range "0" on RANGE DIAL.

  9. Using a screwdriver put boresight adjustments center.

  10. Using power controls, lay the TOW reticle center mass of 2500m target.

  11. The Gunner then leaves the Gunner's station and aligns the TOW transmitter to the same aiming point that HE aligned the TOW ISU reticle.

  12. YOU ARE NOW BORESIGHTED.

* TOW ZEROING

  1. Two individuals are needed to adjust (zero) deflection.

  2. Gunner fires TOW and one individual moves TOW transmitter.

  3. Gunner fires TOW at 2500m target, if target flashes stop and go to next step, if no target flash, move TOW around target until target flashes and go to next step.

  4. Once above is accomplished manually adjust left or right, center mass of 2500m target.

  5. Loosen BLACK LOCK KNOB leaving one of four points on the black lock knob pointing towards the rear, to use as a guide point.

  6. Outside individual manually moves TOW transmitter to the right target form. Gunner fires TOW, the target should flash. The Tow transmitter is continually moved target form to the right until the target DOES NOT FLASH.

  7. Using your guide point on the BLACK LOCK KNOB, make a tick mark on the TOW bracket located directly below the BLACK LOCK KNOB.

  8. Outside individual moves the TOW transmitter back to the starting point and then repeats the above action but in the opposite direction until the target DOES NOT FLASH.

  9. Using your guide point on the BLACK LOCK KNOB make a tick mark on the TOW bracket located directly below the BLACK LOCK KNOB.

  10. Now identify both tick marks, and put a third tick mark down half way in-between both tick marks, now manually move TOW transmitter to center tick mark while using the BLACK LOCK KNOB as a guide point.

  11. Once above is accomplished, tighten BLACK LOCK KNOB.

    DEFLECTION ADJUSTMENTS ARE NOW COMPLETE

  12. Gunner fires TOW and the target should flash. Gunner fires and then moves the gunner's reticle down target form until the target DOES NOT FLASH. The gunner then refer his reticle center mass of the target with boresight screw. Gunner repeats the above steps but in the opposite direction until the target DOES NOT FLASH. The gunner then refer his reticle down to center of the target with boresight screw.

  13. Refer Night sight..

  14. Day and Night sight are NOW ZEROED.

Boresight and Zero the Coax
  1. After Main Gun is Boresighted and Zeroed refer the Gunner's Coax.

  2. Hold a MWLD in front of the Main Gun Transmitter (Coax) and tap the Coax Microphone on a metal object. The MWLD should have a continuous audible tone.

  3. The last step is to fire blank ammunition at a target to verify the complete weapon system is functional.

M2/M3
Table of Contents
M1 Tank Guides



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