TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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b. Clean the main sleeve bearing halves with drycleaning solvent or mineral spirits paint thin- ner. Use a wooden scraper to remove sludge or gum deposits from bearing grooves and oil holes. Do not remove the bearing location markings made dur- ing engine disassembly. 3-45. Inspection a. Castings. Inspect the crankcase oil seal hous- ing (35, fig. 3-149), oil seal housing cap (4), oil seal housing support (28), main bearing caps (19 and 26), ,-. . :� ,• ,-· .-· TM 9-281 S-220-34 and elated parts according to instructions cover- ing castings in paragraph 3-37b, c, and d. b. Inspect the engine crankcase rods (13, fig. 3-149), plate washers (12), nuts (11), and oil seal 1·etainers (2) for damaged threads and other un- serviceable conditions. Inspect injection pump base (2, fig. 3-150) according to instructions cover- ing castings in parngraph 3-37b, c, and d. Inspect high oil pressure transmitter (1, fig. 3-150.1) and auxiliary generntor high oil pressure switch (4) for damage. Replace all parts found unserviceable. • D D D D D PIPE ?LUGS DRAIN LINE PISTOil COOLING LlrlE LINE TO FAN CLUTCHES, ADVANCE UNI ANO CAMSllAFTS LINE TO CRANKCASE +Al SLEEVE BEARINGS LINE FROM OIL PUlIP T,\Q21Cl2 F'igm·e J·148. Crankcase oil pussages - schematic diagram. Change 1 3-67