Figure 31. Alignment of the Gun Reticle With The Boresight Lamp on The Buddy Vehicle.

M2/M3 BFV: FIRE CONTROL SYSTEM - OD1608 - LESSON 1/TASK 4

FIGURE 31. ALIGNMENT OF THE GUN RETICLE

WITH THE BORESIGHT LAMP ON

THE BUDDY VEHICLE.

(10) Move the SENSOR SELECT switch to NIGHT.

(11) Turn the BRT knob to adjust the brightness and the CON knob

(refer to figure 25 on page 32) to adjust the contrast.

(12) Turn the FOCUS knob (refer to figure 25) to focus the gun

reticle. A freewheeling effect will be noticed if the FOCUS knob is

turned left more than seven to nine turns from a fully right

position.

(13) Check the alignment of the gun reticle on the thermal

resistor (figure 32 on the following page) of the buddy vehicle. If

the elevation crosshair and the azimuth crosshair in the gun reticle

are aligned on the thermal resistor of the buddy vehicle, the night

sight is boresighted.

However, if the elevation and azimuth

crosshairs of the gun reticle are not aligned with the thermal

resistor of the buddy vehicle, the night sight must be boresighted to

the daysight.