United States department of the Interior-Bureau of Reclamation-Turbine Repair

Turbine Repair-Denver,Denver ,Colorado-1989,67p.
The purpose of this monography is to provide field personnel with a basic guide to the repair of hydraulic turbine runners and large pump impellers. It sumarizes the experience of Reclamation in operating and maintenance a wide variety of reaction and impulse turbines as well as axial flow, mixed flow, radial flow pumps and pump-turbines. The recommendations in this bulletin are to be used as reference to help develop specific repair procedures and adapt them to a given situation.Contents.
Introduction.
Runner Materials.
Cavitation.
Cavitation, Mitigation, and Repair Procedures.
Approach.
Frequency of Inspection and Repair.
Cavitation Damage Inspection.
Cause of Pitting.
Decision on Best Approach to Repairs.
Repair Methods.
Runner Modifications.
Personnel for Cavitation Pitting Repairs.
Documentation Forms.
Crack Repair.
Welding Electrodes.
Grinding.
Seal Rings.
Wicket Gate Repair.
Paint.
Guide -Bearing Rebabbitting.
References.
Tables.
Figures.
Forms.