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 the housing, which aretoo large to conveniently clean with solvents,may be immersed in a hot solution tankcontaining a mild alkaline solution. Partscleaned in hot solution tanks must be rinsedthoroughly to prevent damage by traces ofalkaline material.3.Parts with ground or polished surfaces, suchas bearings, gears, and shafts, should becleaned with emulsion cleaners or petroleumsolvents. Alkaline hot solution tanks maydamage the machined surfaces and suchcleaning methods should be avoided.B. Drying and Corrosion InhibitionSoft, clean shop towels should be used to dryparts after cleaning. Compressed air may beused to clean inaccessible 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.Dried parts should be immediately coated witha light oil or corrosion inhibitor to preventcorrosion damage. Parts which are to be storedshould also be wrapped in heavy waxed paper.C. InspectionPrior to reassembly, parts which are to bereused must be carefully inspected for signs ofwear or damage. Replacement of such parts canprevent costly downtime at a future date.All bearing surfaces, including ball bearingassemblies and roller bearing cups and cones,should be examined for pitting, wear, oroverheating. Gears also may show pits, as wellas scoring and broken teeth. Shafts may benicked and marred, or may have damagedthreads. Parts which show any signs of damageshould be repaired or replaced.Check all shift forks and slots in slidingclutches for extreme wear or discoloration fromheat. Check engaging teeth of sliding clutches forpartial engagement pattern.-15-
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
