TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download

TM 9·2815-220-34 _ TA0555sol Figure i · l,8. Instai+g µou·er takt d> hwsing using oli11e111e11I t. nwd AVDS./70·tDH 11gint. (6) Connect oil inlet hose(6, fig. 2-148.1). Install fuel pump (4) using new gasket (5) and secure with four self-locking nuts and flat washers(3). Connect fuel inlet hose (2) and fuel outlet hose (1) to fuel pump elbows. (6) 1 nstall fuel inlet and outlet hose clamps (8) on stud at 9 o'clock position and secure with self- locking nut and flat washer (3, fig. 2-148.3). NOTE Open bleeder valve on fuel/water separator filter and purge fuel system (para 2-23). Close bleeder valve after purg- ing system. 29.2. Throttle Control Solenoid Assembly a. Remal. (1) Remove capscrew and self-locking nut (1, fig. 2-148.5) and separate control rod from injection pump fuel lever (2). Remove cotter pin (3) and flat washer (4) and disconnect rod from manual fuel shut-off lever (5). Discard cotter pin. Remove two capscrews and lockwashers (6) securing fuel filter bracket(7) and camshaft end plate (10) to the cylin- der. (2) Remove two machine bolts and lockwashers (8) securing cross shaft support to damper and fil- ter housing, and one capscrew and lockwasher (9) securing camshaft end plate (10)  cylinder and remove end plate and throttle linkage cross shaft (11)  an assembly. Remove and discard end plate mounting gasket (12). (3) Remove right camshaft end plate (1, fig. 2-148.6). Remove retaining ring (2), ball bearing (3) and retaining ring(4) om shaft. Loosen capscrew 2·94 Change 2 (5) and remove lever (6) and Woodruff key (not shown). Remove retaining ring (7), lever (8) and retaining ring (9) from shaft. Loosen capscrew(10) and remove lever (11) and Woodruff key (not shown). Remove spacer (12), block ( 13) and spacer (14). Remove retaining ring (15), lever (16) and re- taining ring (17) from throttle control solenoid as- sembly (18). Refer to figure 3-258, item 44 for re- moval of cover from camshaft end plate (1, fig. 2-148.6). b. I 11stalfation. (1) Install retaining ring(l7, fig. 2-148.6), lever (16) and retaining ring (15) on new throttle control solenoid assembly (18). Install spacer (14), block (13) and spacer (12). Install Woodruff key, lever(11) and lighten capscrew (10). Install retaining ring (9), lever (8) and retaining ring(?). Install Woodruff key and lever (6) and tighten capscrew (5). Install retaining ring (4), ball bearing (3) and retaining ring (2). Install camshaft end plate (1). (2) Install throttle control solenoid and throt- tle linkage cross shaft assembly(ll, fig. 2-148.5) on engine using new end plate mounting gasket (12). Install two machine bolts and lockwashers (8) and one capscrew and lockwasher (9). Install fuel filter bracket (7) and secure with two capscrews and lockwashers(6). Connect rod to manual fuel shutoff lever (5) and secure with flat washer (4) and new cotter pin (3). Connect control rod to injection pump fuel lever (2) and secure with capscrew and self-locking nut (1). c. Adjust Idle Speed Sc1 · ew. (1) Start and operate engine until normal operating speed is reached. (2) With engine running, loosen locknut on idle speed adjusting screw (fig. 2-148.7). (3) Turn idle speed adjusting screw until 700 rpm is obtained. Turn screw clockwise to increase speed, and counterclockwise lo decrease speed. Tighten locknut. d. Adjust Solenoid Control Speed Screw. (I) With engine running at nonnal operating temperature, loosen locknut on solenoid control speed screw (fig. 2-148.7). Activate power take-off and have an assistant increase engine speed to 1800 rpm. (2) If I 800 rpm cannot be obtained when speed control screw engages stop, tum screw counterclockwise to increase engine rpm. If screw has nol engaged stop when 1800 rpm are obtained, turn screw clockwise until screw engages stop. (3) Allow engine to retu to idle speed. Increase engine speed to 1800 rpm and recheck adjustment. If adjustment is not correct, repeat step (2) above. (4) Tighten locknut after correct rpm (1800 rpm no load) is obtained. Stop engine.