TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 OIL PUMP REPAIR 0154 00 INSPECTION (Continued) 7. Measure inside diameters (A, B) of bushings in spacer assembly (42). Replace oil pump if not within specifications in the following table. 8. Inspect scavenge compartment impellers (23 and 24). a. Replace pump if any impeller has burrs, wear, cracked or broken teeth, or pitting at tooth contact areas. b. Measure length (C) of impellers (23 and 24). Replace oil pump if not within specifications in the following table. c. Measure inside (D) and outside (E) diameters of impeller (23). Replace oil pump if not within specifications in the following table. d. Measure outside diameter (F) of impeller (24). Replace oil pump if not within specifications in the following table. Location Sizes and Fit of New Parts inches (mm) Wear Limits A 1.1330 (28.7782) 1.1340 (28.8036) 1.1350 (28.829) B 0.9843 (25.0012) 0.9848 (25.0139) 0.9853 (25.0266) C 3.0410 (77.2414) 3.0420 (77.2668) 3.0405 (77.2287) D 0.9860 (25.0444) 0.9865 (25.0571) 0.9870 (25.0698) E 2.4774 (62.9259) 2.4778 (62.9361) 2.4770 (62.9158) F 2.4794 (62.9767) 2.4798 (62.9869) 2.4790 (62.9666) F C D C E 24 23 42 B A WP 0154 00-8