TM 9-2320-363-34-2
9.
10.
11.
CHECK CRANKSHAFT
SURFACE AT ANGLE
CRACKS. DETERMINE
FOR CRACKS WHICH START AT OIL HOLE (3) AND FOLLOW JOURNAL
OF 45 DEGREES TO AXIS. REPLACE ANY CRANKSHAFT WITH SUCH
PRESENCE OF CRACKS NOT VISIBLE TO EYE BY MAGNETIC PARTICLE.
FLUORESCENT MAGNETIC PARTICLE, OR FLUORESCENT PENETRANT METHOD.
REPLACE CRANKSHAFT IF CIRCUMFERENTIAL FILLET CRACKS (4) AT CONNECTING ROD, OR
FILLET CRACKS OR 45-DEGREE CRACKS (45 DEGREES TO AXIS OF CRANKSHAFT) AT MAIN
BEARING JOURNAL, ARE EVIDENT.
INSPECT ALL PARTS FOR WEAR OR DAMAGE.
12-49
