TM 9-2350-261-34 16.17.18.19.20.Place front armor shield (1) on a levelsurface with shield plate supported on twoblocks (2) of equal height. Place blocks about2–1/2 inches (6 cm) apart with hole in platecentered between blocks. Blocks mustsupport pintle flange of machine gun mount.Place machine gun mount (3) on shieldplate (1). Install machine gun in mount.Center machine gun in shield slot.Place two 1/16-1/8 inch (2-3 mm) thickspacers (4) between blocks and shield plateso pintle flange is 1/16-1/8 inch (2–3 mm)below shield plate.Using a level, check to see that pintleflange (3) and shield plate (1) are level.Make sure machine gun is still centered inslot. Remove machine gun.Use a welding machine and tack weld pintleflange to shield plate (1) in four places.Then weld pintle to upper surface on platewith not less than 3/16 inch (4 mm) filletweld all around pintle flange. Weld inaccordance with TM 9–237.21.22.Raise and lower machine gun mount. Checkfor interference between ammunition trayand shield plate. Use a hand grinder andgrind off plate, as needed.Touch up any damaged areas with paint.See TM 43-0139.23. Install front shield (1) with machine gunpintle on cupola support. Install travelstrap (5) and clamp (6) on right armorshield (7).END OF TASK20-4
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