TM 5-4320-300-145-21. IMPELLER, SHAFT, SEALS, AND CHECK VALVE (CONT)Location/ItemActionRemarks5.ImpellerPrevent shaft from moving at coupling end andremove locking cone from opposite end ofshaft. Remove impeller, shims, and Woodruffkey.6.Seal plateRemove nuts and lockwashers. Slide seal plateand shaftwith seal and shaft seal assembly from shaft.seal assemblyDiscard shaft seal assembly and seal plate seal.7.Bearing capRemove bearing cap, grease seal, and packing.Discard grease seal and packing.8.Retaining ringsRemove from each end of shaft.9.BearingsRemove.10. ShaftRemove.CLEANINGWARNINGDry cleaning solvent is flammable and potentially dangerous to peopleand property. Do not use near open flame, sparks, excessive heat, or onhot surfaces. Flash point of P-D-680 solvent is 100° to 1380F (380 to 590C).Use solvent in a well-ventilated area, and avoid inhaling fumes. Ifrepeatedly exposed to fumes, seek fresh air and immediate medical help.Avoid prolonged exposure of skin to solvent. Wash exposed skinimmediately and thoroughly.Compressed air used for cleaning shall not exceed 100 psi (690 IcPa). Usegoggles, or face shield for eye protection. Do not direct airstream againstskin.11. All metalClean with P-D-680 dry cleaning solvent and drypartswith compressed air.INSPECTION12. Check valveInspect for trapped dirt or other foreign material,assemblydeteriorated or cracked rubber, corroded metal,and damaged or missing hardware. Replace damagedor missing parts.5-84
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