TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Figure 5-134. Location of preformed packings at oil transfer tubes in crankcase a s s e m b l y - rear fan and accessory drive housing mounting base. Remove 1. Remove ten cotter pins, slotted nuts (A), and flat washers. 2. Remove six cap screws (B) and flat washers. 3. Remove rear fan and accessory drive housing mounting base (C) from crankcase assembly. 4. Remove and discard four preformed packings (D) from oil transfer counterbores in mounting base (or from oil transfer tubes in rear fan and accessory drive housing). Install 1. Position mounting base (C) on crankcase assembly. 2. Install six cap screws (B) and flat washers. 3. Install ten co,ter pins, slotted nuts (A), and flat washers. 4. Install four new preformed packings (D) in oil transfer counterbores in rear fan and accessory drive housing mounting base (C). Figure 5-133. Removing or installing rear fan and accessory drive housing mounting base. 5-12. Oil Pan, Crankshaft Damper and Oil Filter Housing, Cylinder Air Deflectors, Cylinder Assemblies, and Pistons and Pins Refer to Table 5-9 for illustrations and disassembly instructions. Figure references are listed in the table. Note. For instructional purposes the removal of one right bank cylinder assembly, piston, and pin is described. Remove balance of cylinders in a similar manner. Table 5-9. Oil Pan, Crankshaft Damper and Oil Filter Housing, Cylinder Air Deflectors, Cylinder Assemblies, and Pistons and Pins Component Figure Reference Oil Pan 5-135 through 5-137 Crankshaft Damper and Oil Filter Housing 5-138 through 5-140 Cylinder Air Deflectors, Cylinder Assemblies, Pistons and 5-141 through 5-147 Pins 5-74