TM 9--2815--247--34 0083 00--6 GENERATOR DRIVE MECHANISM REPAIR -- CONTINUED 0083 00 Inspection -- Continued 5.   Measure inside diameter (30) of spur gear (19). Replace spur gear if not within the following limits. 6.   Measure inside diameter (31) of ball bearing (25). Replace ball bearing if not within the following limits. 7.   Measure outside diameter (32) of ball bearing (25). Replace ball bearing if not within the following limits. 8.   Measure outside diameter (33) of shouldered shaft (16). Replace shouldered shaft if not within the following lim- its. REF NO. POINT OF MEASUREMENT SIZES AND FITS OF NEW PARTS inches (mm) WEAR LIMITS 30 Inside diameter of bearing bore in spur gear 2.8334 (71.9683) 2.8346 (71.9988) 2.8348 (72.0039) 31 Inside diameter of ball bearing 1.1807(29.9897) 1.1811 (29.9999) none 32 Outside diameter of ball bearing 2.8341 (71.9861) 2.8346 (71.9988) none 33 Outside diameter of shouldered shaft 1.1804 (29.9821) 1.1808 (29.9923) 1.1802(29.9770) Figure 29 30 19 31 25 32 33 16