TM 9--2815--247--34 0082 00--9 OIL PUMP ASSEMBLY REPAIR -- CONTINUED 0082 00 Inspection -- Continued 19. Measure outside diameter (72) of shaft (16). Replace oil pump if not within the following limits. 20. Measure inside diameter (73) and outside diameter (74) of two impellers (37). Replace oil pump if not within the following limits. 21. Measure the length (75) of two impellers (37). Replace oil pump if not within the following limits. 22. Measure outside diameter (76) of impeller (38). Replace oil pump if not within the following limits. 23. Measure the length (77) of impeller (38). Replace oil pump if not within the following limits. REF NO. POINT OF MEASUREMENT SIZES AND FITS OF NEW PARTS inches (mm) WEAR LIMITS 72 Outside diameter of shaft 0.9835 (24.9809) 0.9840 (24.9936) 0.9832 (24.9732) 73 Inside diameter of impeller 0.9860 (25.0444) 0.9865 (25.0571) 0.9870 (25.0698) 74 Outside diameter of impeller 2.4774 (62.9259) 2.4778 (62.9361) 2.4770 (62.9158) 75 77 Length of impeller 0.2090 (5.3086) 0.2100 (5.3340) 0.2085 (5.2959) 76 Outside diameter of impeller 2.4794 (62.9767) 2.4798 (62.9869) 2.4790 (62.9666) Figure 19 16 72 77 38 76 75 75 73 73 74 74 37 37