Installation. - TM-9-6115-464-34

TM-9-6115-464-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 15 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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ARMY TM 9-6115-464-34 AIR FORCE TO 35C2-3-445-2 NAVY NAVFAC P-8-624-34 d. AssembIy. (1) Using a piston ring expander install oil control ring (23, figure 3-52), scraper ring (22) and compression rings (21 ) onto pistons (24). NOTE If replacement piston rings have dots on the rings, the rings should be installed with the dots toward the piston head. (2) Apply a light coat of engine oil to the bushing (19) and connecting rod (18) and press the bushing into the connecting rod. (3) Fit piston assemblies (17) onto connecting rods (18) and insert piston pins (16). Install retaining rings (15). e. Installation. NOTE Prior to installation of piston assemblies inspect cylinder block (paragraph 3-57), camshaft (paragraph 3–55) and cylinder head (paragraph 3-54) prior to installation of the piston, connecting rods and crankshaft. (1) Install upper half of main bearings (7 and 11, figure 3-52) into cylinder block. NOTE Some of the bearings partially cover oil holes. (2) Carefully place crankshaft (12) into position. (3) Place a short strip of plastic gauge on each main bearing journal. (4) Install lower half of main bearings, main bearing caps (6 and 10), Iockwashers (5 and 9) and screws (4 and 8). (5) lighten screws (4) to 100 ft.-lbs. torque. Tighten screws (8) to 130 ft.-lbs. torque. (6) Remove main bearing cap and lower half of main bearings. Check plastic gauge against standard to determine main bearing clearance. Clearance shall be 0.0009 to 0.0034 inch. (7) If clearance is not within specified limits, grind crankshaft and install with undersized bearings (paragraph c (7) above). (8) When bearing clearances have been established, install lower half of main bearings and main bearing caps ((5) above). NOTE Apply a liberal coating of engine lubricating oil to inner surface of main bearings prior to installation. (9) Use a feeler gauge to check crankshaft end thrust clearance on center main bearing. End thrust clearance shall be 0.0050 to 0.0100 inch. (10) If end thrust clearance is not as specified, remove center main bearing and polish sides on a piece of crocus cloth. Clean to remove abrasive residue and apply a liberal coating of engine lubricating oil before installation. 3-125

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