TM 9-243SAFETY1.Keep work, scraper, and hands free from grease3.Use the scrapers only for their intended purposes.and oil when using a scraper.2.Keep scrapers sharp at all times, (except the carbonNOTEscrapers), since a dull scraper is more apt to slipCarbon scraper blades are fairly dull toand cause injury.prevent scoring of a piston and/or cylinderwall.USING A BEARING SCRAPER1 Place the bearing to be scraped on a bench or othersuitable working surface.2 Use both hands on the bearing scraper. One handshould be at the end of the handle while the otherhand steadies the tool.3 Use the hand at the end of the handle to twist thetool. Use very light pressure and remove a smallamount of metal with the twisting stroke. If too muchpressure is applied, the scraper will chatter andleave a rough, uneven surface.4Start at one top side of bearing cap. Work down, andthen up to the top of the other side. Do not scrapelengthwise.5 Repeat procedure until the required amount ofmaterial has been removed to fit the bearing ontothe shaft.CARE OF SCRAPERS1.Keep scrapers sharp (except carbon scrapers) by2.When a scraper is not in use, coat the blade with asharpening or grinding.film of light oil.NOTE3.Hang or store scrapers separately to protect theCarbon scraper blades are fairly dull tocutting edge. Do not throw scrapers in with othertools. This will damage the cutting edges.prevent scoring of a piston and/or cylinderwall.4.For long-term storage, coat all metal parts withrust-preventive compound and store in a dry place.30-3/(30-4 blank)
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