Quantcast Inspection - TM-9-2815-247-34_449

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TM 9--2815--247--34 0067 00--2 CRANKSHAFT BEARINGS AND ASSOCIATED PARTS REPLACEMENT -- CONTINUED 0067 00 Inspection NOTE Crankshaft main bearing caps and sleeves have been marked and removed when the crankshaft was removed. Refer to WP 0064 00. 1.   Visually inspect main sleeve bearing halves (4, 5, 6, and 7). BASIS FOR BEARING REJECTION ACCEPTABLE BEARING FLAWS Separation of bearing metal, or signs of possible separation. Fine scratches on bearing surface Pitting or any other form of destruction to bearing surface. Minute pieces of metal and dirt particles embedded in bearing surface with a concentration of less than 5 percent. (Do not attempt to remove such particles) Raised metal at edges of scratches. Pieces of metal or dirt particles embedded in bearing surface with a concentration of 5 percent or more of the surface area. 2.   Measure outside width of main thrust bearing (8). Replace bearings that do not meet the following limits: REF NO. POINT OF MEASUREMENT SIZES AND FITS OF NEW PARTS inches (mm) WEAR LIMITS 8 Outside width of main thrust bearing 2.4860 (63.1444) 2.4880 (63.1952) 2.4840 (63.0936) Figure 6 7 6 5 4 8


 


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