TM 9-2320-363-34-24.IF REPAIRING CRACK (1), USE 1/8-lN. DIAMETER BIT TO DRILL HOLE (2) COMPLETELY THRUUNCRACKED LAMINATE. DRILL HOLE (2) 1/8 IN. (3 mm) FROM EACH END OF CRACK (1) TOPREVENT CRACK (1) FROM LENGTHENING.W A R N I N GWear goggles and air purifying respirator when cutting, grinding, or sandingduring fiberglass repairs. Ground dust and particles could cause temporary orpermanent damage to eyes, and if inhaled, could cause respiratory irritation.AWAY5.ON ENGINE SIDE OF HOOD (3), USE ROUTER BIT ON GRINDER OR DRILL TO GRINDSHALLOW RECESS. GRIND RECESS TO ONE-QUARTER DEPTH OF LAMINATE (4) AND 1/2 IN.(13 mm) OUTWARD FROM ALL SIDES OF DAMAGE. TAPER OUTSIDE EDGE OF GROUND AREA(5). IF REPAIRING CRACK (1), GRIND OUTWARD TO DRILLED HOLE (2) AT END OF CRACK (1),BUT NOT BEYOND.6.USE 100-220 GRIT SANDPAPER TO SCUFF AREA AT LEAST 1 IN. (25 mm) AWAY FROMFRACTURE ON ALL SIDES (6). SCUFF THOROUGHLY TO GIVE SURFACE TO WHICH PATCHCAN STICK.W A R N I N GTo prevent injury, compressed air will not exceed 30 psi (207 kPa). Use onlywith effective chip guarding and personal protective equipment, goggles,shield, and gloves.BLOW DUST AWAY WITH COMPRESSED AIR AND WIPE AREA WITH CLEAN CLOTH.7.22-6
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