Major overhauls to reduce operating costs and increase efficiency through refurbishment and minor upgrades such as:• Greaseless bush conversions on wicket gates, servos, operating rings etc• Shaft seal upgrades (axial type & material changes)• Wicket gate repairs and replacements (stainless weld overlay, crack repairs and journal replacements)•Turbine runner weld repairs on seals and blade cavitation•Rotating component balancing and assembled machine balancing to International Standards•Rotor pole refurbishments•Servomotor bypass leakage testing and refurbishment.