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Types and Uses - 14256_196
Chapter 31 Awls

Tools And Their Uses - Hand tools and what they are used for
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TM 9-243 SAFETY 1. Keep work, scraper, and hands free from grease 3. Use the scrapers only for their intended purposes. and oil when using a scraper. 2. Keep  scrapers  sharp  at  all  times,  (except  the  carbon NOTE scrapers), since a dull scraper is more apt to slip Carbon scraper blades are fairly dull to and  cause  injury. prevent  scoring  of  a  piston  and/or  cylinder wall. USING A BEARING SCRAPER 1    Place the bearing to be scraped on a bench or other suitable   working   surface. 2    Use both hands on the bearing scraper. One hand should be at the end of the handle while the other hand steadies the tool. 3    Use the hand at the end of the handle to twist the tool. Use very light pressure and remove a small amount of metal with the twisting stroke. If too much pressure is applied, the scraper will chatter and leave a rough, uneven surface. 4 Start at one top side of bearing cap. Work down, and then up to the top of the other side. Do not scrape lengthwise. 5    Repeat procedure until the required amount of material has been removed to fit the bearing onto the shaft. CARE  OF  SCRAPERS 1. Keep scrapers sharp (except carbon scrapers) by 2. When  a  scraper  is  not  in  use,  coat  the  blade  with a sharpening  or  grinding. film of light oil. NOTE 3. Hang or store scrapers separately to protect the Carbon scraper blades are fairly dull to cutting edge. Do not throw scrapers in with other tools. This will damage the cutting edges. prevent  scoring  of  a  piston  and/or  cylinder wall. 4. For long-term storage, coat all metal parts with rust-preventive  compound  and  store  in  a  dry  place. 30-3/(30-4 blank)







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