TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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GEꜲSHAFT TM 9-2815-220-" Pig11rt 3-160. Preui11g statr drivtn gearshlfrom ball bearing. b. Cleaning, Inspection, and Repair. (1) Refer to paragraphs 3-36 through 3-38. Fig11Ye 3-159. Pressi11g slurlrr tlrirt11 geurshajl 011d beangs fru111 bruri11g Cfl. (2) lnpect starter driven gearshaft, oil seal, and bearings against limits specified in repair standards (table 3-3). Replace parts not meeting these requirements. Table 3-3. Sta er Dri+M Gershal Reir Standards Fig. Ref. Point of Component No. letter measurement Starter drive gearshaft 3-167 c Outside diameter of oil seal oil seal 3-167 f Inside diameter of seal bore in cage. 3-167 f-e Fit of seal in cage Starter driven gearshafl 3-167 b Outside diameter of bearings bearing 3-167 c Inside diameter of beang bore in cage 3-167 C t of bearing in cage 3-107 j Inside diameter of benring bore in crankcase liner 3-167 j Fit of baring in crankcase 3-167 g Inside diameter of bearing 3-167 h Outside diameter of bearing hubs on gearshaft. 3-167 g-h it of benrings on gearshafl hubs. 3-167 d Tooth width of starter drive gear. Refer lo 8r3 a h 3-37c for ex lanation of s •mls. � p p Sizes and lits Wear of new pa+s li mits 2. 1270 2.1310 . 2.L2-IO 2.1260 • O.ꝃIOT 0.0070T . 2.S4 l 2.S46 . 2.8346 2.8353 2.8356 00 0.0012L 0.0015L 2.6 2.8353 2.S56 0.00 0.0012L 0.15L 1.377 5 1.3780 . 1 .3781 1.3785 1.3779 O.ꝃOIT O.ꝃIOT O.ꝃOLL 0.87 0.8Z0 . c. Assembly. (l) Coat ball bearing with engine oil and posi- tion bearing on bearing flange of gearshaft. Press lower balJ bearing (fig. 3-161) on gears haft using a suitable pressing sleeve on inner race of bearing. Coat upper ball bearing with engine oil and press bearing on opposite end of gearshaft in the same manner. seal on bore of bearing cage with lip of seal towards ball bearing seat. Carefully press oil seal (fig. 3-162) into cage until seal is tight against seal seat flange. Press starter driven gearshaft in the bearing cage. (2) Coat new oil seal with engine oil. Position 3-51. Generator Drive a. Model AVDS-1790-2C Engine. (1) Disassembly. Press generator drive gear- shaft (fig. 3-163) from rear ball bearing using a Chango 1 3·77