Page 74 - CITS - Fitter Trade Pactical - Volume - 2
P. 74

FITTER - CITS




           Job Sequence
           •  Wipe off the scraped surface with soft cloth to remove burrs.
              Again, place the scraped surface on prussion blue applied surface and move forward and backward and notice
              the high spot marks.
           •  Repeat the scraping process untill the prussion blue  spotted marks spread over the entire surface of the job.

           Precautions
           •  Ensure that the workpiece is securely clamped or held in bench vice  to prevent it from moving or shifting
              during scraping.

           •  Wipe off the scraped surface with soft cloth.
           •  Apply thin coat of oil and pressure it for evaluation.
           •  Make sure scraper  is sharp and properly maintained. Dull tools can slip or cause uneven scraping,



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                                            CITS : CG & M - Fitter - Exercise 20
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