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 (e) Install electrical lead from blower motor haess (·1, fig. 2-19) ci1·cuit number 530 (3) and electrital cable (2) on g(merator terminal "B". Se- cure wilh self-locking nut ;rnd flat washer (1). In- stall electl'ical lead 478 (8) on generntor terminal "D" and secure with self-locking nut and flat washer (7). 1 nstall eleclrical lead 1 (6) on generator terminal '·A" and secure with self-Jocking nut and flat washer (5). (/) Install generaloi· uir intake tube (fig. 2-18) on generator blower motor housing and se- cure to front and rear support brackets with two capscrews, lockwashers, and naL wnshers. 2-20. Turbosupercharger (Models AVDS- 1790-2C and AVDS-1790-20) a. He111of. NOTE Similar procedures a1·e required to re- move the left and right turbosuperchar- gers. For instructional purposes, removal of the left turbosupercharger is described. Removal procedures fo1· the right tur- bosupercharger are the same, except for the oil filler tube installation. (1) Loosen two hose clamps (fig. 2-23) on oil i ler tu be. Fig111·e l·U. l,,,.. . �t1i11 11r /iylite11i11g uil.filll1· 1111µ+r a1td luwer r11b hut' ,.,,,111ecti1111, m•JCI A \'DS-no.ic 011d .4 \'DS-1790-2/J <•11gi11e�. (2) Remove two machine bolts and lockwashers (1, fig. 2-24) and one bolt and self-locking nut(2) and remove upper oil filler tube (3). I (3) Remove one self-lockir1g nut and machine boll (4) and seven assembled washer bolts (5) and r emo ve lower left rear shroud pla le (6). (4) Remove machine bolt and self-Jocking nut (1, fig. 2-25) and two assembled washer bolts (2), 2-40 Change 2 and remove turbosupercharger outer shroud plate (3). (5) Disconnect turbosupercharger oil inlet hose (4). Remove oil inlet elbow (5) and oil inlet nipple (G) and retain for installation in replacement turbosupercharger. Remove gt·ommet (7) and pull oil inlet hose (4) through opening in inner shroud plate. 2 I Machine bolt and lockwashe1 2 Machine bolt and self-locking nut 3 Upper oil filler tube 4 Machine bolt and self·locking nut S Assembled washer bolt 6 Lower left rear shroud plate TA126170f Fig11rri·2,. llemuvi11go1·i11stol/111g lurn•r ltf/ rear shroud /Jlate. o11d upper oil fier tube, 11111del A\'DS-1790-lC and A\'DS-1790-20 e11gi11es. (6) Remove three assembled washer bolts (fig. 2-26) and one self-locking nut and bolt, and remove inner shroud plate. (7) Loosen self-locking nuts on hose clamps(fig. 2-27). Remove six self-Jocking nuts and remove air outlet elbow. Remove and discard air outlet elbow gasket. Remove two self-locking nuts and flat wnshers at turbosupercharger mounting base studs. (8) Loosen two adjustable hose clamps (fig. 2-28). (9) Remove eight self-locking nuts, flat washers and capscrews (fig. 2-29). Separate exhaust pipes from turbosupercharger and re- move and discard two gaskets. Remove tur- bosupercharger (fig. 2-28). b. Installation. (1) Install turbosupercharger on mounting base studs (fig. 2-28) and insert turbosupercharger oil drain tube into oil drain tube hose. Install new gaskets (fig. 2-29) and secure exhaust pipes to tur- bine housing with eight self-locking nuts, flat