TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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) TM 9-2815-220·34 (3) Assembly. Coat all bearings with engine oil and press rear and front ball bearings o n generator drive gearshaft. (b) Press generator drive gearshaft (fig. 3-165) from front ball bearing using a suitable arbor press. Press gears haft from rear baU bearing in the same manner . b. ilodel AVDS-1790-D <w AVDS-1790-DR , Engines. . (1) Di.assembly. (a) Press generator adapter oil seal (fig. 3-164) from adapter using a suitable arbor press. GE�ERATOR ADAPTLR OIL SEAL Fiu111·1• .t. /6.5. Pressi 11n g1•11er1tw cll'i11e ye-�/11{/ )him bull /J•mriny, ,;wde/ A \IDS-1790·20 ccl 1 VDS-1790-H e11yi11es. (2) Cleaning, iw1pecti1m, and 1·epair. (a) Refer to paragraphs 3-36 through 3-38. F'i111'1' 3·164. H11>1w1•i11{1 t'llt'mlnr ad<>fcr oil eat, 111ndcl Al'OS-170-lD a11d A\IDS-179-!DR e11qi111•. (b) Inspect generator drive gearshaft, oil seal, bearings and adapter ag·ainst limits specified in the repair standards (table 3-5). Replace parts not meeting these requirements. Vig. Component No. Generator drive :.l-167 gearshnll, oi I e11 and bearings :!·167 :j.J67 3. !(j7 3-167 3-Hi7 3-167 3-167 :.!·167 3-1G7 3-1G7 Tubl.5. U1merotur Ov Hepr1i1·Stu11<i!ln/, M11<lels A \IUS-17!1U-20 al!ll AVDS·l79U-DH Ref. Point of lette1· 111ensu remcn t x Outside diameter of bearings on generatordrivu gearshaft y Inside diameter of bearing bore in adapter x-y !"it ,,f l1�11ri11g in ndaptr z I nsidc diameter of beating bore in crankcase liner. X·% Fit of he a ri ng in cnmkcase aa Outside diameter of bearing hubs on gearshaft bb Inside diameter of bca1·i11� bb·aa Fit of bearings on gearshaft cc Outside diameter of oil sal dd Inside diameter of oil seal bore in adap ter cc-dd Fit of oil seal in adapter Refer to paragraph J.:J?t f<ir explanation of symbols. Sizes and lits Wear of new parts limits 2.8341 2.8:!46 . Vl3•16 2.8353 2.3 56 0.0000 0.0012L 0.0015L 2.83,16 2.8353 2.8356 0.0000 0.00121. 0.0015L L.3781 1.:785 l.:. !779 1.3775 J.3780 • O.OOOlT O.OO! 0.0001 L 2.2520 2.2560 • 2.2490 2.2510 • 0.00lOT 0.00701' • Change 3 3-79