TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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a rigi position to remove nut. Remove plain nut and lockwasher. NOTE The nut, lockwasher, and key are part of the pump assembly and must be installed on pump after hub is removed. CAUTION The coupling halves are a matched set. Damage or wear to the sleeve or hub of either coupling half requires the re- placement of a complete coupling assem· bly. (18) Remove fuel injection pump front coupling sleeve and hub from injection pump shaft using a suitable puller (fig. 2-46). Figm·e 2·45. llcmoving u1· illstulling .fl1l i11jectio1t pump coupling. ULL FUEL INJECTION PUMP ONT COUPLER SLEEVE AND HUB FROM INJECTION PUMP SHAFT USING A SUITABLE PULLER I . TA021533 Figm·e 2-46. Uemovingfuel injection pump coupling sleeve and hb. b. Installation (1) Install woodruff key and injection pump TM 9-2815-220-34 coupling half on pump shaft and secure with lockwasher and plain nut (fig. 2-45). Position a metal rod in one of the sleeve alinement holes and torque tighten plain nut. to 900 pound-inches. In- stall new preformed packing in groove in face of coupling sleeve. Use a light coating of grease t1, hold performed packing in position. (2) Remove timing hole plug (fig. 2-47). Tu injection pump shaft with drive coupling until marked gear tooth is visible (fig. 2-48). NOTE It is possible to have the timing mark on the coupling alined with mark on th(! in- jection pump bearing retaining plate (fig. 2-49) and not have the marked gear tooth visible in timing hole. Make sure marked tooth (fig. 2-48) is visibl when timing marks are alined. If lhe marked Looth is not visible, rotate the pump shaft 360° in either direction. Aline the coupling timing marks and the marked tooth will be visi· ble in the timing hole. Install timing hoie plug. F·;guret-J,7. l?rmuvittg 11ri11slo/li11a}i11•/ i11Jl•fiu1111 111111i 111i11y /111/r µluy. Figure 2·48. f"11c/ i11jccti,111 111111111 ti111i11y hule +ho,,i11 '"a1·kt•d UMI' lu11tlt. Change 1 2-53