TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
Page 237 of 532
c. Install impro vised front fan drive housing lift- ing tool (fig. 2-1) on vertical dl'ive shaft (fig. 3-83) and ljft front fan drive housing and clutch assem- bly with attached horizontal fan drive shaft. from the mounting base a ssembly . Remove fan drive shaſt, cover, and cover adapter. Remove and discard prermed packings. Fiqure33. Removing or ii1staflingfro11tfa11 drive housing and clutch assembly using improvised lifting tool. d. Remove ten cotter pins, slotted nuts and . fiat washers (1, fig. 3-84) and two capscrews and fiat washers (2) securing f ront fan drive housing mounting to crankcase. Remove and discard pre- formed packing (3) from oil transfer tu be counter- bore in · mounting base assembly (4) or from oil transfer tube in fan drive housing. Remove front. fan drive housing mounting base assembly (4) from crankcase assembly and remove and discard pre- rmed packing from oil transfer tube (fig. 3-85). TM 9-2815-220-34 I Slollcd nut nnd nat washer � Cnpscrew and Oat washer 3 Prermed pnekm� 4 lounting ba�l' umbly Fig11re3-84. Remuvi119 01· i11stolli11fro11tfa.n dl'ive hu11si119 mo1111til1g bascnssc111bly. Figu1·e3·85. loration o/JJnfrmnc pud.:i11g un uil tm 11sfcr t11be in era 11kcasc 08sr111b/y. c. Remove and discard µreformed packing (fig. 3-86) from oil transfer tube in fuel i n jection pump mounting hasc. Remove four bolts and lockwashc1· and remove mounting base from crankcase asembly. Remove and disal'd pre - rmed packing from oil transfer tube (fi�. 3-87). 3-26. Rear Fan and Accessory Drive Hous- ing With Clutch Assembly and Mount- ing Base a . . Remove eight self-locking nuts and flat washel'S (fig. 3-88) attachi n g accessory drive hous- ing to rear fan and accessory drive housing mount- ing base. Remove one self-locking nut, flat washer, Change 3 3-37