1. Work under this section consists of disassembly of the top portion of the turbine unit, testing, inspecting, repair recommendations, recording applicable dimensions and clearances. The following tasks are included, but not limited to: 2. Prior to disassembly with runner still in place, measure and record gap between runner blades and discharge ring. Remove the packing, packing gland, and the packing box. Drain the oil from the lower generator bearing and the drain case for the coupling. 3. Remove the timing gear cover and the timing gear. Split and remove the upper generator guide seal, split the cover then remove it. 4. Drain all the oil out of the oil head and the oil head shafts. 5. Remove the upper guide bearing and split the guide bearing support. i. Disassemble bearing, noting component clearances ii. Clean, inspect, and NDT shoes iii. Inspect bearing surfaces iv. Report on findings and recommend repair options if applicable. v. Final blast and coat on applicable surfaces (the cost for this work shall be included in the “Blasting and Coating” bid item); vi. Provide final report on prior and as-repaired measurements
