TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 CRANKSHAFT MAIN BEARINGS INSPECTION 0138 00 INSPECTION (Continued) CAUTION The main bearing caps and main bearing halves must be installed in their original position according to location number identification on the cap and bearing half. The side of each main bearing cap identified as "fly end" must be installed toward rear of crankcase (flywheel end). 6. Install main bearing caps (6, 7). a. Coat mating surfaces of main bearing caps (6, 7) and machined surfaces of crankcase (12) with lubricant (item 21, WP 0173). b. Install main bearing caps (6, 7) (with bearing halves installed) on studs in crankcase. c. Use jackscrew (crankcase spreading tool) (8) (item 110, WP 0176) to spread crankcase just enough so that each bearing cap (6, 7) will slide into position. Jackscrew must be repositioned for each bearing cap location. d. Remove jackscrew (8). e. Apply Lubriplate (item 23, WP 0173) to threads of 28 studs (9), 14 washers plates (10), and 28 slotted nuts (11). f. Install washers (10) and nuts (11). Finger tighten nuts (11) only at this time. 5 8 9,10,11 7 7 6 WP 0138 00-5