Figure 9-45. Straightening Nose Section and Flywheel Pilot Run-out

Figure 9-46. Grooved Sidewall Grinding Wheel

TM-9-6115-604-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 5 Kw. 1 Phase-2 Wire 1 Phase -3 Wire 3 Phase -4 Wire 120. 120/240 and 120/208 Volts Manual
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TM 9-6115-604-34 NAVFAC P-8-633-34 NOTE These limits may be exceeded if the remaining misalignment is to be ground out of the main bearing journals. (4) Crankshaft straightening may cause increased runout of the nose section and flywheel pilot. Excessive runout at these points may be corrected by applying the straightening load to No. 2 main journal to straighten the nose section runout, or No. 6 main journal to straighten the crankshaft pilot runout (Figure 9- 45). (5) After straightening, the TIR of either the nose section or crankshaft pilot shall not exceed 0.001 inch (0.03 mm). NOTE In performing any of the straightening operations above, the alignment of other sections of the crankshaft may be adversely affected. Repeat the straightening procedures as necessary until the crankshaft is within acceptable limits. (6) Inspect the crankshaft in accordance with step dNO TAG, above, to detect cracks which may have been caused by the straightening operation. Replace the crankshaft if unacceptable cracks are detected. Figure 9-45. Straightening Nose Section and Flywheel Pilot Run-out f. Grind Journals. WARNING The weight of the crankshaft Is approximately 850 pounds (383 kg). Use of a lifting device not rated for this weight may result in damage to components or injury to personnel. (1) General. A number of precautions should be exercised to hold the risk of grinder bums damage to a minimum. These precautions are necessary in both the choice of equipment, and in the grinding procedure. 9-83

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