TM 9--2815--247--34 0068 00--3 SPUR GEAR (ACCESSORY DRIVE) REPLACEMENT-- CONTINUED 0068 00 Removal -- Continued WARNING 4.   Cut lockwire (7) securing 12 screws (8). Discard lockwire. 5.   Remove 12 screws (8) and spur gear (9) from crankshaft (10). Figure 7 9 8 7 10 Inspection 1.   Visually inspect spur gear (9). Refer to WP 0012 00. 2.   Measure spur gear (9) and replace if it does not meet the following limits: REF NO. POINT OF MEASUREMENT SIZES AND FITS OF NEW PARTS inches (mm) WEAR LIMITS 11 Outside diameter of accessory drive gear mounting flange on crankshaft 9.7480 (247.5992) 9.7500 (247.65) 9.7470 (247.5738) 12 Inside diameter of crankshaft pilot bore in accessory drive gear 9.7500 (247.65) 9.7520 (247.7008) 9.7530 (247.7262) Figure 7 9 12 11