TM-9-2320-365-34-2 LMTV Direct Maintenance Manual M1078 Series - Volume 2 Download
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TM 9-2320-365-34-2 20-5. CRANKSHAFT AND MAIN BEARINGS REPLACEMENT/REPAIR (CONT) b. Cleaning/Inspection. WARNING Diesel fuel is flammable. Keep diesel fuel away from open fire and keep a fire extinguisher within easy reach when working with diesel fuel. Do not smoke when working with diesel fuel. If fuel is spilled, clean it up immediately. Failure to comply may result in serious injury or death to personnel. CAUTION If crankshaft main or connecting rod bearing journals are found to be out of tolerance, crankshaft must be replaced and new main bearings installed. Failure to comply may result in damage to equipment. NOTE Replace any part that fails visual inspection or size measurement requirements. (1) Clean crankshaft (1), main bearings (2), and main bearing caps (3) thoroughly with diesel fuel. (2) Inspect seven crankshaft main bearing journals (4) for cracks and evidence of overheating. CAUTION Check crankshaft main bearing journals in two places, 90 degrees apart, on each main bearing journal. Do not use area immediately around oil hole where journal surface is lower. Failure to comply may result in inaccurate readings and damage to equipment. (3) Check dimensions of seven crankshaft main bearing journals (4). Refer to Table 20-5. Crankshaft Main Bearing Journal Diameters. 20-32