TECHNICAL MANUAL - Sharq.biz

scrapingClean the pipe from dust, dirt and grease.Place the upper saddle on the pipe and mark thescraping area with a colored pen or wax pencil.Remove the oxidized surface layer by scrapingthe external pipe surface for at least 10 mm overthe previous marked area.The operation must be done by using the manualscraper supplied with the EF control unit.Remove an uniform surface layer of material for adepth of approximately 0,1 mm for diametersup to 63 mm and of approx. 0,2 mm fordiameters greater than 63 mm.AVOID the use of abrasive paper, rasp, emerywheels, saw blades or other equipment.cleaningJust before positioning the saddle on the pipe,clean the scraped surface with a clean cloth orstrong soft paper slightly drenched with suitabledetergent (i.e. isopropyl alcohol or methylenechloride) to remove any trace of dust and grease.Do not use products such as thrichloroethylene,denaturated alcohol, gasoline, acetone or paintdiluent.Clean in the same way the inner surface of theupper saddle, which has to be removed from itsprotective wrapping only at the moment of use.Do not touch with hands the just cleanedsurfaces; on the contrary, repeat cleaning.46