W912P5-16-R-0002TSpecsAm5Pages.pdf

Unit 4 Rehabilitation Old Hickory Powerhouse W912P5-16-R-0002 Amendment No. 0005 Sumner County, Tennessee

1.2.1 Site Work and Structural

a. Perform all work required to comply with the site operations, environmental protection, and safety and health provisions.

b. Perform all work required for painting including lead-based paint removal and disposal.

c. Perform all work required for miscellaneous welding, machinist, electrician, and other skilled craftsman hire.

1.2.2 Turbine

a. Disassemble the turbine-generator Unit 4 by removing rotating and stationary components and related interferences.

b. Determine Unit 4 centerline and re-center stationary components for these units.

c. Determine the cause of the oil leak between the turbine shaft and the runner hub and provide engineering services and field repair to make the turbine runner assembly free of leaks upon reassembly.

d. Inspect, and refurbish, or replace miscellaneous turbine and generator mechanical components and piping including but not limited to: thrust bearing oil coolers, bearing oil circulation pumps, brake cylinders, brake rings, wicket gate shear pins and linkage pins, turbine shaft sleeve, packing box and gland, wicket gate packing boxes and glands, servomotor, etc. See Paragraph MECHANICAL COMPONENTS for additional information.

e. Replace all greased bushings with new bronze based greased bushings.

Work shall include line boring of the bottom ring and head cover bushing housings for Unit 4.

f. Replace the existing greasing system in its entirety including but not limited to grease motor, pumps, grease lines, grease fittings, and holes with a new automatic greasing system.

g. Perform cavitation damage and crack repair on the turbine water passage elements as directed.

h. Install a welded overlaid stainless steel band in the discharge ring

i. Perform turbine and generator guide bearing and generator thrust bearing steel shell inspections.

j. Repair turbine and generator guide bearings and generator thrust bearings as directed. Rebabbitt all turbine and generator guide bearings and generator thrust bearings.

k. The Government will drain Unit 4 governor oil. The Contractor will clean and flush all Unit 4 hydraulic governor oil piping. The Government will refill the oil systems.

l. Machine the mounting surfaces for the headcover and bottom ring to correct any problems with large wicket gate clearances.

SECTION 01 11 10 Page 3

m. Disassemble the turbine runner hub and replace and repair internal components.

n. Reassemble turbine-generator units with rehabilitated runners and appurtenances and other rehabilitated and replacement components.

o. Clean turbine pit, generator, and surrounding areas. Dispose of old grease and existing grease lubrication components, etc.

p. Perform complete alignment of turbine-generator units.

q. Perform post operational tests on the Unit 4 turbine-generator unit as specified or as directed.

r. The ferrous surfaces in the turbine pit and the water passage shall be painted.

s. Replace wicket gates (alternate).

1.2.3 Electrical

a. Design, manufacture, shop test, prepare and load for shipment, deliver f.o.b. destination, and unload one complete set of stator coils, and stator core for Unit 4 and all accessories specified herein.

b. Provide prototype coils for testing by independent lab. Testing to consist of voltage endurance and thermal cycling.

c. Perform all work required to comply with the site operations, environmental protection, and safety and health provisions as specified herein.

d. Remove existing stator core. GAC will remove existing stator coils.

e. Install and test one new stator core, stator winding, and accessories specified herein.

f. Provide a new partial discharge analysis (PDA) system.

g. Provide a new machine condition monitoring system.

h. Remove rotor poles from rotor rim. GAC will ship rotor poles to an offsite facility, abate asbestos insulation, and transport the rotor poles to the reinsulation facility identified by the Contractor.

Contractor shall re-insulate and test rotor poles, mount rotor poles to rotor rim, test rotor poles, and clean the rotor.

i. Remove pilot and main exciter, inspect, provide inspection report, and clean

j. Perform special field tests on unit 4.

k. Furnish spare parts as listed in Section 48 13 16.00 26.

l. Replace existing generator neutral grounding system with new high resistance ground system.

SECTION 01 11 10 Page 4

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00.00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 GENERAL INFORMATION

1.2 MEASUREMENT

1.2.1 Job Measurement Items

1.2.2 Unit Price Measurement Items

1.2.3 Services of Miscellaneous Hire Items for Government Directed

Work

1.2.4 Miscellaneous Welding

1.2.5 Reference Sections

1.3 PAYMENT

PART 2 PRODUCTS - NOT USED

PART 3 EXECUTION - NOT USED

-- End of Section Table of Contents --

SECTION 01 22 00.00 Page 1

SECTION 01 22 00.00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 GENERAL INFORMATION

In each instance, the contract price for an item will constitute full compensation as specified, as shown, or as otherwise approved. The contract price and payment will also constitute full compensation for all work incidental to completion of the item, unless such work is otherwise specifically mentioned for separate payment under another item. In the event any work is required by the specification sections or by the drawings and not specifically mentioned in the measurement and payment paragraphs, separate or direct payment will not be made, and all costs thereof are incidental to, and included in, the contract prices and payment for all items listed in the SECTION B.

1.2 MEASUREMENT

1.2.1 Job Measurement Items

Measurement items for the work of this contract for which one job payments will be made are listed in the price schedule and described below. All costs for items of work, which are not specifically mentioned to be included in a particular price measurement item, shall be included in the listed item most closely associated with the work involved. The price for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.

1.2.2 Unit Price Measurement Items

Measurement items for the work of this contract on which the contract unit price payments will be made are listed in the price schedule and described below. The unit price for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.2.3 Services of Miscellaneous Hire Items for Government Directed Work

Machinist hire, electrician hire, welding services, painter hire, other skilled craftsman hire, general laborer hire, liquid penetrant method, magnetic particle method, ultrasonic method, radiographic method, and thermal spraying measurement of time will be units of man-hours, with a man-hour defined as one person working as directed for a period of 60 minutes. To qualify as services of miscellaneous hire, the directed work will be additional to that necessary to comply with specifications requirements. Time will be computed by rounding off to the next higher one-half (1/2) hour. No separate measurement for supervision, helper labor, overhead and/or other markups will be made as they are incidental to

SECTION 01 22 00.00 Page 2 the service being furnished.

1.2.4 Miscellaneous Welding

Miscellaneous welding will be measured as the number of pounds of welding rod or wire placed. When directed to perform welding under this item, the welding rod or wire for the work shall be weighed in the presence of a Government Inspector. Upon completion of the work, the rod studs and unused rods or wire shall be weighed in the presence of a Government Inspector and the difference in weight between the rods or wire issued and the stubs and rods or wire returned will be the amount for payment. If the number of studs plus the unused rods does not equal the number of rods issued, the weight of one rod will be deducted for each rod unaccounted for.

1.2.5 Reference Sections

Sections referenced at the end of each Price Item listing are included for reference only and do not necessarily include all the detailed information required for the completion of the work described in the price item.

1.3 PAYMENT

Contract line items designated 'As Needed' will not be subject to adjustments under, "Variation in Estimated Quantities."

Payment for all work specified, shown or incidental to complete the work will be made as follows:

1.3.2 Basic Unit Price for Generator Unit 4

Site Work and Structural

Price Item 0001 Site Mobilization to Accomplish Work; Site Demobilization to Remove Equipment, Cleanup and Restore the Site to Original Condition

Mobililization will be paid for as a job under Price Item No. 0001.

Mobilization will be considered complete when the Contractor has the equipment and manpower onsite and ready to begin unit disassembly.

Demobilization will be considered complete when the Contractor has removed all construction equipment, cleaned the area and restored the work area to "as found" pre-contract conditions, unless otherwise approved. Reference is made to DFAR Clause 252.236-7004.

Item No. 0002 Disassemble Hydraulic Turbine/Generator Unit and Inspect Components

Payment for disassembly will be paid for on as a complete job under Item No. 0002. Payment shall include, labor, material, and equipment required to disassemble the generating unit, perform disassembly measurements, cleaning, testing and inspections in accordance with the Contractors approved disassembly procedure, and as shown on the drawings and in accordance with the specifications. Disassembly shall be considered complete when all measurements, cleaning, testing and inspections are complete in accordance with the Contractor's approved disassembly procedure and the turbine generator has been completely unstacked with the rotor and runner in their appropriate erection bays.

SECTION 01 22 00.00 Page 3

48 13 13.02

Item No. 0003 Reassemble Generating Unit

Payment for reassembly will be paid for as a complete job under Item No. 0003. Payment shall include, labor, material, and equipment required to reassemble the generating unit including sealing between mating surfaces, adjustments, performing reassembly measurements, and alignments in accordance with the Contractors approved reassembly procedure, and as shown on the drawings and in accordance with the specifications. Assembly shall be considered complete when all sealing of mating surfaces, adjustments, reassembly measurements are complete in accordance with the Contractor's approved reassembly procedure and the unit is ready to rotate.48 13 13.02

Item No. 0004 Furnish Center Hole Jacking System

Payment for the center hole jacking system will be paid for as a Job under Item No. 0004. Payment shall include, labor, material, and equipment required to furnish a center hole jacking system in accordance with the specifications. The center hole jacking equipment shall become the property of the Government at the end of the contract. 48 13 13.02

Item No. 0005 Investigate the Condition of Generating Unit Prior to Disassembly

Payment for investigations prior to disassembly will be paid for as a complete job under Item No. 0005. Payment shall include labor, material, and equipment required to perform investigations, pre-disassembly testing, and un-watered unit inspections and measurements in accordance with the specifications. 48 13 13.02

Item 0006 Determine Unit Centerline with Benchmarks, Unit 4

Payment for centerline determination will be paid for as a Job on for Unit 4 under Item No. 0006. Payment shall include, labor, material, and equipment required to reassemble some components of the generating unit after disassembly and determine the concentricity of major components around the turbine guide bearing housing center in accordance with the Contractors approved procedure, and in accordance with the specifications. The new centerline shall be submitted and approved and benchmarks shall be shall be mounted or located.

48 13 13.02

Item No. 0007 Operational Testing After Reassembly of Generating Unit

Payment for testing after reassembly will be paid for as a Job for Unit 4 under Item No. 0007. Payment shall include, labor, material, and equipment required to perform testing after reassembly of the generating unit including as a minimum, system and component tests, electrical tests, post-overhaul operational testing and 72-hour operational test in accordance with the Contractors approved startup procedure and in accordance with the specifications. 48 13 13.02

Item No. 0008 Painting

Payment for painting of Old Hickory Unit 4 shall be paid for as a

SECTION 01 22 00.00 Page 4 complete job under Item No. 0008. Payment shall include all labor, materials and equipment required for the painting operations as described in the specifications. 09 97 02.23

Item No. 0009 On-Site Lead-Based Paint Removal and Disposal

Payment for on-site lead-based paint removal and disposal will be made as a complete job under Item No. 0009. Payment shall include all operations required to remove and dispose of lead-based paint in compliance with all federal, state and local laws and regulations as described in the specifications. This price item only applies to on-site lead abatement. All lead abatement performed offsite shall be included in the cost of painting. 02 83 20

Item No. 0010 Furnish New Draft Tube Platform

Payment for the new draft tube platform shall be a complete job under Item No. 0010. Payment shall include all labor, materials and equipment required to fabricate a new draft tube platform in accordance with the Contractors approved drawings and in accordance with the specifications.

Turbine Runner Refurbishment

Item 0011 Disassembly and Reassembly of Turbine Runner in the Field

Payment for disassembly and reassembly of the Unit 4 runner shall include the complete disassembly of the runner and removal of all internal parts as required and directed, associated inspections, reports and testing specified in SECTIONS 48 13 13.01 26 and 48 13

13.02 26, machining of the hub and specific components for the hub, reassembly with new parts that are fabricated according to the drawings and Section 48 13 13.01 26 and are adaptable to the tolerances and conditions found inside the runner hub. The price shall be paid for as a job under Price Item No. 0011, "Complete Disassembly and Reassembly of Turbine Runner Unit No. 4", unless another Price Item No. is called out for covering a specific portion of the work described. Disassembly will be considered complete when the the predisassembly tests and measurement of the turbine runner have been completed and the internal parts have been removed from the runner hub and the inside of the hub has been thoroughly cleaned in preparation for the installation of the new parts. Reassembly will be considered complete when the turbine runner is completely assemblied and is set on the runner support.

48 13 13.01 and 48 13 13.02

Item 0012 Shipment of Turbine Runner and Blades to/from Contractor's Shop

Payment for Item No. 0012,'Shipment of Turbine Runner and Blades to Contractor's Shop,' shall be paid for as a Job under this price item.

Payment shall include, labor, material, and equipment required to package, protect, ship and return ship back to the powerhouse the runner hub and blades in accordance with the specifications.

48 13 13.01

Item No. 0013 Inspection of Blade Servo Piston and Cylinder, Piston Rod and Piston Cap

Payment for the inspection of the servo piston and cylinder, piston rod

SECTION 01 22 00.00 Page 5 and piston cap shall be paid for as a Job under Item No. 0013. Payment shall include but not be limited to labor, materials and equipment to thoroughly inspect visually and using PT or MT and using UT the blade operating components and furnish a report as specified and required.

48 13 13.01

Item No. 0014 Furnish Blade Servomotor Piston Rings

Payment for furnishing new blade servo piston rings shall be paid for as a Job consisiting of three rings which is enough for one blade piston under Item No. 0014. Payment shall include but not be limited to labor, materials and equipment to furnish the rings as specified and required. 48 13 13.01

Item No. 0015 Furnish Blade Servo Piston Rod Rings

Payment for furnishing new blade piston rod rings shall be paid for as a Job consisting of three rings which is enough for one operating rod under Item No. 0015. Payment shall include but not be limited to labor, materials and equipment to furnish the rings as specified and required. 48 13 13.01

Item No. 0016 Furnish Blade Servo Piston Rod Bushing

Payment for furnishing new blade operating rod bushing shall be paid for as a complete job under Item No. 0016. Payment shall include but not be limited to labor, materials and equipment to furnish the operating rod bushing as specified and required. 48 13 13.04

Item No. 0017 Furnish Superbolt Nuts for Blade Piston Rod

Payment for furnishing new superbolt nuts for blade piston rod shall be paid for as a job under Item No. 0017. Payment shall include but not be limited to labor, materials and equipment to furnish superbolt nuts for both ends of the piston rod as specified and required. 48 13 13.01

Item No. 0018 Furnish New Blade Piston Rod (As Needed)

Payment for furnishing a new blade piston rod shall be paid for as a job under Item No. 0018 (As Needed). Payment shall include but not be limited to labor, materials and equipment to furnish the new blade piston rod as specified and required. 48 13 13.01

Item No. 0019 Furnish New Runner Hub Bushings and Operating Rod Bushings

Furnish New Piston Rod and Runner Hub Bushings shall be paid for as a job Under Item No. 0019 Furnish New Runner Hub and Piston Rod Bushings. Payment shall include labor, materials and equipment to fabricate two piston rod bushings, ten link pin bushings and 10 runner blade bushings and machine them to the as found field dimensions of the hub, operating rod and blades using the clearances and interferences called out on the existing drawings unless otherwise directed and as specified. 48 13 13.01

Item No. 0020 Furnish Superbolt Nuts for Blade Operating Mechanism

Furnishing Superbolt Nuts for Blade Operating Mechansim shall be paid for as a complete job under Item No. 0020 Furnish Superbolt Nuts for Blade Operating Mechansim. Payment shall include all labor, materials

SECTION 01 22 00.00 Page 6 and equipment to fabricate the new Superbolt Nuts for the 5 eye ends and the 5 link plates as specified and directed. 48 13 13.01

Item No. 0021 Inspection of Runner and Blades and Components

Inspection of the Runner and Blades and Components shall be paid for as a complete job under Item No. 0021 Inspection of Hub Internal Components. Payment shall include all labor, materials and equipment to inspect the components as specified and directed. 48 13 13.01

Item No. 0022 Furnish all Steel Components for Blade Operating Mechanism

Furnishing all Steel Components for Blade Operating Mechanism shall be paid for as a complete job under Item No. 0022 Furnish all Steel Components for Blade Operating Mechanism. Payment shall include all labor, materials and equipment to fabricate the steel components, including but not limited to five eye ends, five pairs of link plates, 10 link pins, five link plate studs for the blade Operating Mechanism as specified and directed. 48 13 13.01

Item No. 0023 Machine Runner Flange Face

Machine Runner Flange Face shall be paid for as a complete job under Item No. 0023A Machine Runner Flange Face. Payment shall include all labor, materials and equipment to Machine 0.010 inch from the Runner Flange Face as specified and directed. 48 13 13.01

Additional Machining of Runner Flange Face (As Needed) shall be paid for as each 0.010 inch machine cut from the runner flange face for Item 0023B. Payment shall include all labor, materials and equipment to Machine each 0.010 inch machine cut from the Runner Flange Face as specified and directed. 48 13 13.01

Item No. 0024 Machine Runner Flange Face for Double O-Ring Installation and Provide O-Rings

Machining Runner Flange Face for Double O-Ring Installation and Providing O-Rings shall be paid for as a complete job under Item No.

0024 Machine Runner Flange Face for Double O-Ring Installation and Provide O-Rings. Payment shall include all labor, materials and equipment to Machine Runner Flange Face for Double O-Ring Installation and Provide O-Rings as specified and directed. 48 13 13.01

Item No. 0025 Machine O-Ring Grooves in the Runner Fastener Bores for 18 Runner to Main Shaft Fasteners and Provide O-Rings

Machining O-Ring Grooves in the Runner Fastener Bores for the 18 Runner to Main Shaft Fasteners and Providing O-Rings shall be paid for as a complete job under Item No. 0025 Machine O-Ring Grooves in the Runner Fastener Bores for 18 Runner to Main Shaft Fasteners and Provide O-Rings. Payment shall include all labor, materials and equipment to Machine O-Ring Grooves in the Runner Fastener Bores for 18 Runner to Main Shaft Fasteners and Provide O-Rings as specified and directed.

48 13 13.01

Item No. 0026 Machine Blade Inner and Outer Bushings after Installation and Provide and Install Radial Dowel Pins for Inner Blade Bushings

Machining Blade Inner and Outer Bushings after Installation and

SECTION 01 22 00.00 Page 7

Providing and Installing Radial Dowel Pins for Inner Blade Bushings shall be paid for as a complete job under Item No. 0026 Machine Blade Inner and Outer Bushings after Installation and Provide and Install Radial Dowel Pins for Inner Blade Bushings. Payment shall include all labor, materials and equipment to Machine Blade Inner and Outer Bushings after Installation and Provide and Install Radial Dowel Pins for Inner Blade Bushings as specified and directed. 48 13 13.01

Item No. 0027 Blade Packing Box Modification to Blade Trunnion

Performing the Blade Packing Box Modification to Blade Trunnion shall be paid for as a complete job under Item No. 0027 Blade Packing Box Modification to Blade Trunnion. Payment shall include all labor, materials and equipment to Perform Blade Packing Box Modification to five Blade Trunnions, to provide O-rings and to provide new stainless steel sleeves as specified and directed. 48 13 13.01

Item No. 0028 Blade Packing Box Modification to Blade Retaining Rings

Performing the Blade Packing Box Modification to Blade Retaining Rings shall be paid for as a complete job under Item No. 0028 Blade Packing Box Modification to Blade Retaining Rings. Payment shall include all labor, materials and equipment to perform the Blade Packing Box Modification to five Blade Retaining Rings as specified and directed.

48 13 13.01

Item No. 0029 Crosshead Eye End Bore Chamfer Modification

Payment for the Crosshead Eye End Bore Chamfer Modification shall be paid for as a complete job under Item No. 0029 Crosshead Eye End Bore Chamfer Modifcation. Payment shall include all labor, materials and equipment to Machine a chamfer in the crosshead eye end bores for the increased radius of the eye ends as specified and directed. 48 13 13.01

Item No. 0030 Polish Blade Trunnions

Payment for the Polishing the Blade Trunnions shall be paid for as a complete job under Item No. 0030 Polish Blade Trunnions. Payment shall include all labor, materials and equipment to polish the five blade trunnions as specified and directed. 48 13 13.01

Mechanical

Item No. 0031 Refurbish Oil Head

Payment for refurbishing the oil head of Unit 4 shall be paid as a complete job under Item No. 0031. Payment shall include, but not be limited to labor, material, and equipment required to as a minimum refurbish the oil head, to measure and record diameters and other pertinent information inside the oil head, to provide a set of supports on which to store oil head pipes, to provide a set of rollers on which to check pipe straightness, to replace oil head bushings, to provide a set of master plugs and ring gages for each oil head threaded connection as shown on the drawings and in accordance with the specifications. 48 13 13.04

Item No. 0032 Furnish New Oil Head Bushings

SECTION 01 22 00.00 Page 8

Furnishing a New Oil Head Bushings shall be paid for as a complete job under Item No. 0032 Furnish New Oil Head Bushing. Payment shall include all labor, materials and equipment to Furnish the New Oil Head Bushings as specified and directed.

Item No. 0033 Ship Intermediate Shaft and Main Shaft to Contractor's Shop

Payment for Item No. 0033,'Ship Intermediate Shaft and Main Shaft to Contractor's Shop,' shall be paid for as a Job under this price item.

Payment shall include, labor, material, and equipment required to package, protect, ship and return ship back to the powerhouse the Intermediate Shaft and Main Shaft in accordance with the specifications and as specified and directed. 48 13 13.01

Item No. 0034 Inspect Intermediate and Generator Shafts

Payment for inspection of the Unit 4 shafts shall be paid for as a Job under for Item No. 0034. Payment shall include, labor, material, and equipment required to refurbish the turbine, intermediate and generator shafts and the rotor including but not be limited to inspection, testing, cleaning, journal measurements, turbine shaft sleeve installation, runner attachment as shown on the drawings and in accordance with the specifications. 48 13 13.04

Item No. 0035 Inspect Turbine Shaft

Payment for Inspection of the Turbine Shaft shall be paid for as a complete job under Item No. 0035, Inspect Turbine Shaft. Payment shall include labor, materials and equipment to inspect and clean the turbine shaft as specified and required. 48 13 13.04

Item No. 0036 Machine Main Shaft Below Shaft Sleeve

Payment for Machining the Main Shaft Below Shaft Sleeve shall be paid for as a complete job under Item No. 0036A, Machine Main Shaft Below Shaft Sleeve. Payment shall include labor, materials and equipment to Machine 0.010 inch from Main Shaft Below Shaft Sleeve as specified and required. 48 13 13.04

Payment for Additional Machining of the Main Shaft Below Shaft Sleeve shall be paid for as a complete job under Item No. 0036B (As Needed), Additional Machine Main Shaft Below Shaft Sleeve (As Needed). Payment shall include labor, materials and equipment to Machine Main Shaft Below Shaft Sleeve in increments of 0.010 inch as specified and required. One Job is the removal of 0.010 inch. 48 13 13.04

Item No. 0037 Machine Main Shaft Flange Face to Runner Hub

Payment for Machining the Main Shaft Flange Face to Runner Hub shall be paid for as a complete job under Item No. 0037A, Machine Main Shaft Flange Face to Runner Hub. Payment shall include labor, materials and equipment to Machine 0.010 inch from Main Shaft Flange Face as specified and required. 48 13 13.04

Payment for Additional Machining of the Main Shaft Flange Face to Runner Hub shall be paid for as a complete job under Item No. 0037B (As Needed), Additional Machine Main Shaft Flange Face to Runner Hub (As Needed). Payment shall include labor, materials and equipment to Machine Main Shaft Flange Face in increments of 0.010 inch as specified

SECTION 01 22 00.00 Page 9 and required. One Job is the removal of 0.010 inch. 48 13 13.04

Item No. 0038 Machine Outer Diamter (OD) of New Turbine Shaft Sleeve

Payment for Machining the OD of New Turbine Shaft Sleeve shall be paid for as a complete job under Item No. 0038, Machine OD of New Turbine Shaft Sleeve. Payment shall include labor, materials and equipment to Machine Machine OD of New Turbine Shaft Sleeve as specified and required. 48 13 13.04

Item No. 0039 Hone Blade Servomotor Cylinder

Payment for honing the blade servo cylinder shall be paid for as a complete job under Item No. 0039. Payment shall include but not be limited to labor, materials and equipment to hone the blade servo cylinder as specified and required. 48 13 13.04

Item No. 0040 Machine Blade Servomotor Cylinder (As Needed)

Payment for machining and honing the blade servo cylinder shall be paid for as a complete job under Item No. 0040. Payment shall include but not be limited to labor, materials and equipment to machine 0.040 inch dimatrically from the blade servo cylinder as specified and required.

48 13 13.04

Item No. 0041 Assembly/Disassembly Turbine Runner, Blades and Shafts for Pressure Testing in Shop

Payment for Assembly/Disassembly Turbine Runner, Blades and Shafts shall be paid for on a job under Item No. 0041. Payment shall include but not be limited to labor, materials and equipment to fabricate components as necessary to apply high pressure oil to the blade servo and to assemble the runner, blades and shafts to perform the low pressure testing of the hub and shaft and the high pressure testing of the blade servo with blade movement as specified and directed and disassemble the runner, blades and shafts in preparation for shipment back to the Old Hickory powerhouse. 48 13 13.04

Item No. 0042 Pressure Test Blade Servo Operating System

Pressure Testing the Blade Servo Operating System shall be paid for as a complete job under Item No. 0042 Pressure Test Blade Servo Operating System. Payment shall include all labor, materials and equipment to Pressure Test Blade Servo Operating System as specified and directed.

48 13 13.04

Item No. 0043 Static Pressure Test Assembled Turbine Runner, Blades and Shafts

Static Pressure Testing the Assembled Turbine Runner, Blades and Main Shaft shall be paid for as a complete job under Item No. 0043 Pressure Test Assembled Turbine Runner, Blades and Main Shaft. Payment shall include all labor, materials and equipment to Static Pressure Test Assembled Turbine Runner, Blades and Shafts as specified and directed.

48 13 13.04

Item No. 0044 Hydraulic Turbine Test Oil

SECTION 01 22 00.00 Page 10

Payment for Item No. 0044A,'Provide Hydraulic Turbine Oil for Pressure Testing,' for Unit 4 shall be paid for as a complete job under this price item. Payment shall include, labor, material, and equipment required to Provide Hydraulic Turbine Test Oil for the static and blade servo high pressure shop testing of the Unit 4 in accordance with the specifications. 48 13 13.04

Payment for Item No. 0044B, 'Package and Ship Turbine Test Oil to Old Hickory Powerhouse. (As Needed),' shall be paid for as a complete job under this price item. Payment shall include, labor, material, and equipment required to package and ship the hydraulic turbine test oil used in the shop pressure testing Old Hickory Unit 4 in accordance with the specifications. 48 13 13.07

Item No. 0045 Inspect and Refurbish Upper Generator Guide Bearing Pads

Payment for Item No. 0045A,'Inspect and Ship Upper Generator Guide Bearing Pads,' for Unit 4 shall be paid for under this price item.

Payment shall include, labor, material, and equipment required to inspect, package and ship a set of generator guide bearings pads (8 pads per set) in accordance with the specifications. 48 13 13.07

Payment for Item No. 0045B, 'Refurbish Upper Generator Guide Bearing Pads,' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to clean the upper guide bearing and miscellaneous components, to perform miscellaneous upper guide bearing component inspections, to refurbish a set of pads (8 pads per set), including but not limited to removing existing Babbitt, pouring new Babbitt and machining of the Babbitt including provision of oil supply groves and other details, inspection of finished pads and final report as shown on the drawings and in accordance with the specifications. 48 13 13.07

Item No. 0046 Inspect and Refurbish Lower Generator Guide Bearing Pads

Payment for Item No. 0046A, 'Inspect and Ship Lower Generator Guide Bearing Pads,' shall be paid for as a Job under this price item.

Payment shall include, labor, material, and equipment required to inspect, package and ship a set of generator guide bearings pads (16 pads per set) in accordance with the specifications. 48 13 13.07

Payment for Item No. 0046B, 'Refurbish Lower Generator Guide Bearing Pads,' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to clean the lower guide bearing and miscellaneous components, to perform miscellaneous lower guide bearing component inspections, to refurbish a set of pads (16 pads per set), including but not limited to removing existing Babbitt, pouring new Babbitt and machining of the Babbitt including provision of oil supply groves and other detail, inspection of finished pads and final report as shown on the drawings and in accordance with the specifications. 48 13 13.07

Item No. 0047 Inspect Turbine Guide Bearing Housing and Inspect and Refurbish Turbine Guide Bearing

Payment for Item No. 0047A, 'Inspect Turbine Guide Bearing Housing ,' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to clean and inspect turbine guide bearing housing in accordance with the specifications.

SECTION 01 22 00.00 Page 11

48 13 13.07

Payment for Item No. 0047B, 'Inspect and Ship Turbine Guide Bearing,' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to inspect, package and ship the turbine guide bearing in accordance with the specifications. 48 13 13.07

Payment for Item No. 0047C, "Refurbish Turbine Guide Bearing,' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to clean the turbine guide bearing and miscellaneous components, to perform miscellaneous turbine guide bearing component inspections, to refurbish one turbine guide bearing, including but not limited to removing existing Babbitt and tinning material, pouring new Babbitt and machining of the Babbitt including provision of oil supply groves and other detail, perform build up and machining of OD fits, skim cut machining of split flange faces, inspection of finished guide bearing refurbishment and final report as shown on the drawings and in accordance with the specifications.

48 13 13.07

Item No. 0048 Inspect and Refurbish Spare Upper Generator Guide Bearing Pads

Payment for Item No. 0048A, 'Inspect and Ship Spare Upper Generator Guide Bearing Pads,' shall be paid for as a complete Job. Payment shall include, labor, material, and equipment required to inspect, package and ship a set of spare generator guide bearings pads (8 pads per set) in accordance with the specifications. 48 13 13.07

Payment for Item No. 0048B, 'Refurbish Spare Upper Generator Guide Bearing Pads,' shall be paid for as a complete Job. Payment shall include, labor, material, and equipment required to clean the spare upper guide bearing and miscellaneous components, to perform miscellaneous spare upper guide bearing component inspections, to refurbish a spare set of pads (8 pads per set), including but not limited to removing existing Babbitt, pouring new Babbitt and machining of the Babbitt including provision of oil supply groves and other detail, inspection of finished pads and final report as shown on the drawings and in accordance with the specifications. 48 13 13.07

Item No. 0049 Inspect and Refurbish Spare Lower Generator Guide Bearing Pads

Payment for Item No. 0049A, 'Inspect and Ship Spare Lower Generator Guide Bearing Pads,' shall be paid for as a complete Job. Payment shall include, labor, material, and equipment required to inspect, package and ship a set of spare generator guide bearings pads (16 pads per set) in accordance with the specifications. 48 13 13.07

Payment for Item No. 0049B, 'Refurbish Spare Lower Generator Guide Bearing Pads,' shall be paid for on as a complete Job. Payment shall include, labor, material, and equipment required to clean the spare lower guide bearing and miscellaneous components, to perform miscellaneous spare lower guide bearing component inspections, to refurbish a spare set of pads (16 pads per set), including but not limited to removing existing Babbitt, pouring new Babbitt and machining of the Babbitt including provision of oil supply groves and other detail, inspection of finished pads and final report as shown on the drawings and in accordance with the specifications. 48 13 13.07

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Item No. 0050 Inspect and Refurbish Spare Turbine Guide Bearing

Payment for Item No. 0050A, 'Inspect and Ship Spare Turbine Guide Bearing,' shall be paid for as a complete Job. Payment shall include, labor, material, and equipment required to inspect, package and ship the spare turbine guide bearing in accordance with the specifications.

48 13 13.07

Payment for Item No. 0050B, 'Refurbish Spare Turbine Guide Bearing,' shall be paid for as a complete job. Payment shall include, labor, material, and equipment required to clean the spare turbine guide bearing and miscellaneous components, to perform miscellaneous spare turbine guide bearing component inspections, to refurbish one spare turbine guide bearing, including but not limited to removing existing Babbitt and tinning material, pouring new Babbitt and machining of the Babbitt including provision of oil supply groves and other detail, perform build up and machining of OD fits, skim cut machining of split flange faces, inspection of finished guide bearing refurbishment and final report as shown on the drawings and in accordance with the specifications. 48 13 13.07

Item No. 0051 Generator Thrust Bearing Phase 1 Inspection

Payment for all Generator Phase 1 inspections for Unit 4 shall be paid for as a Job under Item No. 0051. Payment shall include, labor, material, equipment, and approved reports required to clean and inspect all components under the Phase 1 inspection. 48 13 13.06

Item No. 0052 Generator Thrust Bearing Phase 2 Inspection (As Needed)

Payment for all Generator Phase 2 inspections for Unit 4 shall be paid for as a Job under Item No. 0052. Payment shall include, labor, material, equipment, and approved reports required to clean and inspect all components under the Phase 2 inspection. 48 13 13.06

Item No.0053 Refurbishment of the Thrust Bearing Shoes

Payment for Item No. 0053A, 'Shipment of the Thrust Bearing Shoes,' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to inspect, package and ship one set of thrust bearing shoes (10 shoes per set) in accordance with the specifications. 48 13 13.06

Payment for Item No. 0053B, 'Refurbishment of Thrust Bearing Shoes,' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to refurbish one set of thrust bearing shoes (10 shoes per set), including but not limited to removing existing Babbitt, pouring new Babbitt, machining of the Babbitt including provision of oil supply groves for High lift operation, other details as necessary, machining the backside and inspection of finished shoes and final report as shown on the drawings and in accordance with the specifications. Design of a new high pressure lift system will be paid for under Item No. 0087. 48 13 13.06

Payment for Item No. 0053C, 'Machine Shoe Backside (As Needed),' shall be paid for as a Job under this price item. Payment shall include, labor, material, and equipment required to machine and/or grind the minimum necessary but up to 0.010 as required to remove spring indentations and achieve the tolerance (flatness, runout, thickness and

SECTION 01 22 00.00 Page 13 surface finish) listed on the tolerance sheets. Material removal shall be uniform over the shoe backside 48 13 13.06

Item No. 0054 Refurbishment of the Thrust Bearing Runner (As Needed)

Payment for Item No. 0054A, Shipment of Thrust Bearing Runner (As Needed),' shall be paid for as a complete job under this price item.

Payment shall include, labor, material, and equipment required to inspect, package and roundtrip ship the thrust bearing runner in accordance with the specifications. 48 13 13.06

Payment for Item No. 0054B, 'Resurface Running Face and Backside of Thrust Bearing Runner (As Needed),' will be paid for as a complete job on this item. Payment shall include, labor, material, and equipment required to resurface backside and running surface of the thrust bearing runner as shown on the drawings and in accordance with the specifications. 48 13 13.06

Payment for Item No. 0054C, 'Runner Face Resurfacing (As Needed),' shall be paid for as a complete job under this price item. Payment shall include, labor, material, and equipment required to resurface running surface only of the thrust bearing runner as shown on the drawings and in accordance with the specifications. 48 13 13.06

Payment for Item No. 0054D, 'Rework The Split Faces of The Thrust Bearing Runner (As Needed),'shall be paid for as a complete job under this price item. Payment shall include, labor, material, and equipment required to rework the split faces of the thrust bearing runner as shown on the drawings and in accordance with the specifications.

48 13 13.06

Payment for Item No. 0054E, 'Furnish New Thrust Bearing Runner Split Line Keys and Perform Related Keywork (As Needed),' shall be paid for as a complete job under this price item. Payment shall include, labor, material, and equipment required to furnish and install new thrust bearing runner split line keys and perform related keywork as shown on the drawings and in accordance with the specifications. 48 13 13.06

Payment for Item No. 0054F, 'Furnish and Install New Fasteners for Joining Runner Halves (As Needed),' shall be paid for as a complete job under this price item. Payment shall include, labor, material, and equipment required to furnish and install new fasteners for joining runner halves as shown on the drawings and in accordance with the specifications. 48 13 13.06

Item No. 0055 Inspect and Refurbish Air Valve Assembly

Payment for vacuum and check valve refurbishment for Unit 4 shall be paid for as a Job under Item No. 0055. Payment shall include, labor, material, and equipment required to refurbish the turbine vacuum and check valve including but not be limited to inspection, refurbishment of mating surfaces, replacement of greased bushings in kind, replacing packing, o-rings gaskets, additional refurbishments as required and perform leakage tests as shown on the drawings and in accordance with the specifications. 48 13 13.04

Item No. 0056 Refurbish Wicket Gate Servomotors

Payment for servomotor refurbishment for Unit 4 will be paid for as a

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Job under Item No. 0056. Payment shall include, labor, material, and equipment required to refurbish the wicket gate servomotors including but not be limited to inspection, leakage testing, disassembly, cleaning, preparation of surface for and replacement of packing, boring and honing of cylinders, replacement of rings and bushing, reassembly and testing and furnishing miscellaneous components as shown on the drawings and in accordance with the specifications. 48 13 13.06

Item No. 0057 Chrome Plate Gate Servo Piston Rod (As Needed)

Payment for chrome plating gate servomotor piston rods for Unit 4 shall be paid for as a Job under Item No. 0057. Payment shall include, labor, material, and equipment required to machine and chrome plate 2 (two) piston rods if necessary as shown on the drawings and in accordance with the specifications. Each unit consists of 2 gate servomotor piston rods. 48 13 13.06

Item No. 0058 Wicket Gates (Alternates)

Payment for Refurbishing Existing Wicket Gates (Alternate) will be paid for as a Job under Item No. 0058A, Inspect and Refurbish Existing Wicket Gates (Alternate). Payment shall include, but not be limited to labor, material, and equipment required to refurbish the wicket gates including inspection, refurbishment of gate end faces, refurbishment of wicket gate vertical contacting surfaces, replacement of wicket gate stem sleeves, and machining of wicket gate stem sleeves as shown on the drawings and in accordance with the specifications. 48 13 13.04

Payment for the design, manufacture and shipment of new stainless steel wicket gates (Alternate) shall be paid for as a Job under price Item No. 0058B, Provide New Stainless Steel Wicket Gates (Alternate).

Payment shall include but not be limited to labor, materials and equipment to design, manufacture, ship and install new stainless steel wicket gates in accordance with the Contractors approved drawings and in accordance with the specifications. 48 13 13.04

Item No. 0059 Replace Wicket Gate Mechanism Grease System

Payment for replacing the wicket gate grease lubrication system for Unit 4 shall be paid for as a Job under Item No. 0059. Payment shall include, but not be limited to labor, material, and equipment required to replace the existing grease lubrication system in kind including the controller, pump, motor, reservoir, valves, grease lines and fittings and all other components to provide a completely functional grease lubrication system as set forth in the specification. 48 13 13.04

Item No. 0060 Provide New Bronze Bushings/Bearing Plate for Wicket Gate Linkage, Operating Mechanism, Gate Stems, Wicket Gate Servos and Vacuum Valve

Payment for providing a set of new bronze bushings/bearing plate for wicket gate linkage, operating mechanism, gate stem, wicket gate servos and vacuum valve for Unit 4 shall be paid for as a job under Item No.

0060. Payment shall include, but not be limited to labor, material, and equipment required to provide one set of bushings in accordance with the specifications. 48 13 13.04

Item No. 0061 Wicket Gate Operating Mechanism Refurbishment

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Payment for wicket gate operating mechanism refurbishment for Unit 4 shall be paid for as a Job under Item No. 0061. Payment shall include, labor, material, and equipment required to refurbish the wicket gate operating mechanism including but not be limited to inspection, replacing pins in kind, refurbishment of gate linkage component surfaces, replacement of wicket gate shear pins and miscellaneous components, installation of connecting rod and linkage bushings, as shown on the drawings and in accordance with the specifications.

48 13 13.04

Item No. 0062 Provide a Pneumatic Shear Pin Detection System with Alarms

Payment for pneumatic shear pin detection system for Unit 4 shall be paid for as a Job under Item No. 0062. Payment shall include, labor, material, and equipment required to design, fabricate and install a new pneumatic detection system in accordance with the specifications.

48 13 13.04

Item No. 0063 Furnish Spare Set of Shear Pins

Payment for furnishing a spare set of shear pins for Unit 4 shall be paid for as a Job under Item No. 0063. Payment shall include, labor, material, and equipment required to design, fabricate and install a a spare set of shear pins in accordance with the specifications.

48 13 13.04

Item No. 0064 Stay Ring Inspection

Payment for stay ring inspection will be paid for as a complete job under Item No. 0064. Payment shall include, labor, material, and equipment required to perform the stay ring inspection including visual and liquid penetrant or magnetic particle techniques in accordance with the specifications. 48 13 13.04

Item No. 0065 Headcover and Facing Plate Inspection and Refurbishment

Payment for headcover refurbishment for Unit 4 shall be paid for as a Job under Item No. 0065. Payment shall include but not be limited to labor, material, and equipment required to inspect the headcover and report findings, refurbishment of gate stem packing boxes, installation of operating ring thrust bearing plate, machining of additional bores as required and installation of the wicket gate stem bushings, as shown on the drawings and in accordance with the specifications. If performed in the Contractor's workshop provide roundtrip transportation of the headcover. 48 13 13.04

Item No. 0066 Machining of Headcover Facing Plates (As Needed)

Payment for machining of the headcover facing plates for Unit 4 shall be paid under Item No. 0066. Payment shall include, labor, material, and equipment required to machine 0.010 inch up to a maximum of 0.040 inch off the surfaces of the headcover facing plates for the purpose of restoring flatness and level and to machine the headcover on either side of the facing plates to maintain design offset, as shown on the drawings and in accordance with the specifications. Each job shall be a 0.010 inch machine cut. If performed in the Contractor's workshop provide roundtrip transportation of the headcover. 48 13 13.04

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Item No. 0067 Furnish New Headcover Facing Plates (As Needed)

Payment for furnishing new headcover facing plates shall be paid for on a single facing plate basis under Item No. 0067. Payment shall include, but not be limited to labor, material, and equipment required to furnish one facing plate in accordance with the specifications.

48 13 13.04

Item No. 0068 Machining of Stay Vane Mounting Flange to Headcover

Payment for machining of the stay vane mounting flange shall be paid for on a complete job under Item No. 0068. Payment shall include, labor, material, and equipment required to machine up to a maximum of

0.020 inch off the surface of the headcover mounting flange for the purpose of restoring flatness and level, as shown on the drawings and in accordance with the specifications. 48 13 13.04

Item No. 0069 Additional Stay Vane Flange Machining (As Needed)

Payment for additional machining of the stay vane mounting flange shall be paid for as a complete job under Item No. 0069. Payment shall include, labor, material, and equipment required to machine an additional 0.020 inch off the surfaces of the headcover mounting flange for…