V. CLEANING AND INSPECTIONA.Choice of Cleaning Methods1.Steam may be used for external cleaning ofcompletely assembled units. Care must betaken to ensure that water is kept out of theassembly by tightly closing breather caps andother openings.2.Rough parts such as housings, which are toolarge to conveniently clean with solvents, may beimmersed in hot solution tank containing a mildalkaline solution. Parts cleaned in hot solutiontanks must be rinsed thoroughly to preventdamage by traces of alkaline material.3.Parts with ground or polished surfaces, such asbearings and shafts, should be cleaned withemulsion cleaners or petroleum solvents.Alkaline hot solution tanks may damage themachined surfaces and such cleaning methodsshould be avoided.B.Drying and Corrosion InhibitionSoft, clean shop towels should be used to dryparts after cleaning. Compressed air may beused to clean accessible areas of large partssuch as the housing. Bearings should not bespun dry with compressed air, as the lack oflubrication may cause damage to the matingsurfaces.Dry parts should be immediately coated with alight oil or corrosion inhibitor to prevent corrosiondamage. Parts which are to be stored shouldalso be wrapped in heavy waxed paper.C. InspectionPrior to reassembly, parts which are to bereused must be carefully inspected for signs of wear ordamage. Replacement of such parts can prevent costlydowntime at a future date.All bearing surfaces, including ball bearingassemblies and roller bearing cups and cones, should beexamined for pitting, wear, or overheating. Shafts maybe nicked and marred, or may have damaged threads.Parts which show any signs of damage should berepaired or replaced.-14-
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
