Att_No._3_-_Delta_Cross_Channel_Spare_Parts.pdf

Attachment No. 3

DELTA CROSS CHANNEL RADIAL GATE SPARE PARTS

1. General:

The Delta Cross Channel has two gates on the structure. The Contractor shall furnish and deliver all spare parts as stated in Section 2 below. The structure is located at the Bureau of Reclamation’s Delta Cross Channel Radial Gate Structure at Walnut Grove, California, in Sacramento County as shown on Drawing No. 214-208-14897.

2. Deliverables:

All parts shall be new. Furnish component parts as indicated in the table below:

Parts No. Ref.

from parts list on Dwg 214-D- 16804

Description Drawing Nos. Material Quantity Furnish

4 7-inch PD Pinion Gear

214-D-16802

Steel, ASTM Designation: A

4 Furnish

6 14-inch PD Spur Gear

214-D-16802

Alloy steel 4 Furnish

21 Split Pillow Block Roller Bearing Housing with bearings.

214-D-16801

See paragraph below

4 Furnish

22 Split Pillow Block Roller Bearing Housing with

4 Furnish

23 Split Pillow Block Roller Bearing Housing with

4 Furnish

24 Split Pillow Block Roller Bearing Housing with

4 Furnish

25 Split Pillow Block Roller Bearing Housing with

4 Furnish

26 Split Pillow Block Roller Bearing Housing with

4 Furnish

The new part dimensions shown on drawings are not confirm, the Contractor needs to verify all dimension in fields. The Contractor shall replace parts as specified, and deliver parts to the Government as stated in this document. The Government will install all new parts at a later date in both gear housings at the Delta Cross Channel Structure.

7-inch PD Pinion Gear (Part No. 4) - Each new pinion gear shall be fabricated from one piece of alloy carbon steel bar. The steel material shall be free of holes, cracks, chips, and flakes. The material for the pinion gears shall be fabricated with a minimum of 60 ksi yield strength, 90 ksi tensile strength, and 149-207 Brinell Hardness. The dimension of the pinion gear is shown in Drawing No. 214-D-16802. The mill furnished for each pinion gear shall provide reports to the Government upon delivery. Minimum requirements in the report shall include the following:

a. Chemical analysis.

b. Heat treatment, including temperatures for austenitizing and tempering, time at temperatures, and cooling medium

c. Results of tests for mechanical properties or hardness, or both, and

d. Results of tests of any required supplementary tests.

e. The Contractor shall provide satisfactory documentation to the Government according to the specifications with the delivery of parts.

f. The pinion shafts may be rejected if report is not delivered with the new pinion gears.

14-inch PD Pinion Gear (Part No. 6) – Each new pinion shall be fabricated from one piece of alloy carbon steel bar. The steel bars shall be free of holes, cracks, and flakes. The material shall be fabricated from alloy steel bar with a minimum of 60 ksi yield strength, 90 ksi tensile strength, and 149-207 Brinell Hardness. The dimension of the pinion gear is shown on Drawing No. 214-D-16802. The Contractor shall provide reports to the Government for each pinion gear.

Upon delivery, minimum information required in the report shall include the following:

a. Chemical analysis.

b. Heat treatment, including temperatures for austenitizing and tempering, time at temperatures, and cooling medium

c. Results of tests for mechanical properties or hardness, or both, and

d. Results of tests of any required supplementary tests.

e. The Contractor shall provide satisfactory documentation to the Government according to the specifications with the delivery of parts.

f. The pinion shafts may be rejected if report is not delivered with the new pinion gears.

Pillow block bearings with housing—New pillow blocks with bearings material and performance shall be equal as shown in on the drawings. Pillow block assemblies shall be spherical roller bearing type, split steel bearing and spilt cast iron housing, with 4-bolt flange configurations as shown on the drawings.

Pillow block assembly shall be SDAF 200 series, Model SDAF 22220 for Parts No. 21, 22, 23, and 26, manufactured by the NDK Company, Ann Arbor, MI or approved equal.

Pillow block assembly shall be SDAF 200 series—Model SDAF 22222 for Part No. 24, manufactured by the NDK Company, Ann Arbor, MI or approved equal.

Pillow block assembly shall be SDAF 200 series—Model SDAF 22224 for Part No. 25, Manufactured by the NDK Company, Ann Arbor, MI or approved equal.

The Contractor shall provide 24 lock Rings and 24 washers. Lock rings and washers shall be marked for which equipment for the intended use.

3. Drawings: The following drawings are part of these specifications:

Location Map------------------------------------------------------------------------------- 214-208-14897 60’ X 30’ Radial Gate – General Installation--------------------------- --------------214-D-16686 60’ X 30’ Radial Gate – Assembly-------------------------------------------------------214-D-16800 60’ X 30’ Radial Gate – Drum Unit Assembly ----------------------------------------214-D-16801 60’ X 30’ Radial Gate – Drum and Ring Gear-Shafting-Spur Gear --------------214-D-16802 60’ X 30’ Radial Gate – Drum Unit Base and Cover---------------- ----------------214-D-16803 60’ X 30’ Radial Gate – Base-Ropes and List of Parts---------------- --------------214-D-16804

4. Material and Workmanship:

All materials shall be new and the strength, ductility, durability, and best engineering practice shall be used for the intended use. All the fabrication shall follow the best modern manufacturing. All work shall be done by mechanics skilled in their trade for this application.

5. Surface Roughness and Finish:

The surfaces of parts where the roughness is specified on the drawings shall conform to surface quality specified in “Surface Texture,” by the American National Standard Institute, published by the American Society of Mechanical Engineers.

6. Measurement:

Fabrication temperature shall be at 75 degree F, or suitable temperature correction shall be made so that dimensions specified will be within the tolerances shown when measured at 75 degree F.

7. Shipment Weight:

Before shipment, the Contractor shall determine, by the most accurate means available, the net weight of the furnished materials, exclusive of boxes, crates, or skids. A list of net weights shall be sent with the shipment. The net weight shall be painted on the respective pieces or assemblies or stated on tags attached thereto.

8. Transportation:

The Contractor shall be responsible for transportation of the furnished parts to the designated site as directed by the Contracting Officer. The Contractor shall prepare all furnished materials for shipment in such manner as to protect them from damage in transit, and shall be responsible for and make good any and all damage due to improper preparation or loading for shipments. Where necessary, heavy parts shall be mounted on skids or crated, and any articles or materials that might otherwise be lost shall be boxed or wired in bundles and plainly marked for identification. If necessary, all parts shall be prepared for shipment so that slings may be attached readily to equipment. All furnished ferrous surfaces shall be coated with a rust-preventive compound, and all furnished non-ferrous metalwork and devices subject to damage shall be suitably wrapped or otherwise protected from damage during shipment. Materials shall be shipped as stated below:

Bureau of Reclamation 16650 Kelso Road Byron, CA 94514-1909 Attention: Mr. Bill Dutton Email: Wdutton@usbr.gov

9. Notification:

The Contractor shall notify Mr. Bill Dutton in writing a minimum of 14 days prior to delivery of components.

10. Warranty:

The Contractor shall warrant the materials and workmanship, after final acceptance, against defects in workmanship and materials for a period of not less than one (1) year. Upon notice by the Government, the Contractor shall at his own expense, and with his own personnel, promptly replace the materials found to be defective during the warranty period.

mailto:Wdutton@usbr.gov

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