TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download

Table 6-19. Oil Pump Overhaul Standards Component Depth of Impeller bore Length of impeller Impellers and shafts Impellers and shafts Impellers and shafts Fig. No. B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 B-9 Ref. letter A B F L L-A Z Z-B DD DD-F E M E-M AA W AA-W CC AA- CC BB J BB-J D-EE Y-G D-EE G-Y K X K-X C H C-H LL H-LL FF GG FF- Point of measurement Piston sprayer pump Pressure pump Scavenge pump Pieton sprayer pump End play between impellers and impeller housings with housings correctly assembled Pressure pump End play between impellers and impeller housings with housings correctly assembled Scavenge pump End play between impellers and impeller housings with housings correctly assembled Outside diameter of piston sprayer pump cover end of oil pump impeller drive shaft Inside diameter of bearing bore in cover Fit of shaft in cover bore Outside diameter of pressure pump and scavenge pump bearing surfaces on oil pump impeller drive shaft Inside diameter of bearing in oil pressure pump housing Fit of impeller drive shaft in housing bore Inside diameter of bearing bore in scavenge pump housing Fit of impeller drive shaft in housing bore Outside diameter of scavenge pump cover bearing surface end of impeller drive shaft Inside diameter of bearing bore in scavenge pump cover Fit of impeller drive shaft in scavenge pump cover Outside diameter of pressure and scavenge pump drive and driven impellers Inside diameter of pressure and scavenge pump impeller bores Fit (radial clearance) of impellers in housing Outside diameter of piston sprayer pump impellers Inside diameter of piston sprayer pump im- peller bores Fit (radial clearance) of impellers in housing Inside diameter of pressure oil pump driven impeller Outside diameter of oil pump driven impeller shaft Fit of impeller on shaft Inside diameter of scavenge oil pump driven impeller Fit of impeller on shaft Inside diameter of scavenge oil pump driven impeller Outside diameter of oil pump driven impeller shaft Fit of impeller on shaft GG Note. Refer to paragraph 6-3b for explanation of symbols. Sizes and fits of new parts 0.8750 0.8770 2.0000 2.0020 2.3500 2.3520 0.8720 0.8730 0.0020L 0.0050L 1.9965 1.9975 0.0025L 0.0055L 2.3460 2.3470 0.0030L 0.0060L 0.9830 0.9835 0.9850 0.9860 0.0015L 0.0030L 1.1310 1.1315 1.1330 1.1340 0.0015L 0.0030L 1.1330 1.1340 0.0015L 0.0030L 0.9830 0.9835 0.9850 0.9860 0.0015L 0.0030L 2.4814 2.4818 2.4850 2.4862 0.0032L 0.0048L 2.2490 2.2500 2.2530 2.2542 0.0030L 0.0052L 0.9860 0.9865 0.9834 0.9839 0.0021L 0.0031L 0.9860 0.9865 0.0021L 0.0031L 0.9860 0.9865 0.9834 0.9839 0.0021L 0.0031L Wear limits 0.8775 2.0025 2.3525 0.8710 0.0065L 1.9960 0.0065L 2.3455 0.0070L 0.9827 0.9870 0.0043L 1.1307 1.1350 0.0043L 1.1350 0.0043L 0.9827 0.9870 0.0043L 2.4810 2.4875 0.0065L 2.2485 2.2550 0.0065L 0.9870 0.9829 0.0041L 0.9870 0.0041L 0.9870 0.9829 0.0041L 6-85