W912QR20Q0057_Amendment0002.pdf

CIVIL/OPS/ENVIRONMENTAL BR

ATTN: LOGAN BARRETT

600 DR M L KING JR PL, RM 821

LOUISVILLE KY 40202-2236

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Solicitation W912QR20Q0057 to provide a Hydraulic Cylinder to Patoka Lake in Dubois, IN is hereby amended as follow s:

a. The Scope of w ork has been modified w ith additional language. Changes have been highlighted in yellow .

b. Portions of the draw ings do not apply. Not applicable draw ings have been marked out w ith red x's.

c. The solicitation due date has been changed from 27 April 2020 @10AM Eastern Time to 01 MAY 2020 @10AM Eastern Time. Date has been updated in the Special Instructions.

d. All other terms and conditions remain unchanged.

SEE SUMMARY OF CHANGES

1. CONTRACT ID CODE PAGE OF PAGES

1 12

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912QR20Q0057

X 9B. DATED (SEE ITEM 11)

13-Apr-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer X is extended, is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

U0002

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

27-Apr-2020

CODE

U. S. ARMY ENGINEER DISTRICT, LOUISVILLE

600 DR. MARTIN LUTHER KING, JR. PLACE

ROOM 821

LOUISVILLE KY 40202-2239

W912QR 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE 964860

FACILITY CODECODE

EMAIL:TEL:

W912QR20Q0057

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The required response date/time has changed from 27-Apr-2020 10:00 AM to 01-May-2020 10:00 AM.

The following have been modified:

SPECIAL INSTRUCTIONS

The Contractor shall provide all labor and materials to fabricate, test, and deliver one (1) hydraulic cylinder per the attached drawings and specifications herein to operate at Patoka Lake control tower. The new cylinder shall have upgrades including but not limited to modern seals, materials, and two each additional ports adjacent to and on the opposite side (180 degrees) of the hydraulic cylinder. The contractor will provide the base as shown in attached drawings PR 18-12.1/48-49 to include the rings, packing, packing seat, packing glands and hardware needed to connect the cylinder to the base. The materials to be used will be in accordance with section 6 and 7 of the attached specifications and will match that of the hydraulic cylinder.(0001)

The contractor’s work and responsibility shall include all planning, programming, administration, management, supervision, communications and inspection necessary to assure that all work is conducted in accordance with the contract requirements and all applicable Federal, State and Local laws and regulations. All work shall be performed in strict compliance with the attached specifications and all other terms and conditions incorporated herein.

One firm fixed price award will be made from this Solicitation.

Method of Payment under this contract will be Electronic Funds Transfer (EFT) to a commercial bank account specified by the Contractor. Quotes will not be accepted for quantities less than the quantities specified in the Quote.

Failure to submit a unit price for all items listed will be considered as a material deviation from the requirements and the Quote will be rejected.

The contract award will be based on Low Price.

The solicitation will be available on the web only. Faxed, telephoned, or mailed requests for this solicitation will not be honored. To download the solicitation for this project, contractors are required to register at the Federal Contract Opportunities website at beta.SAM.gov. For a quick start guide use the following link:

http://falextracts.s3.amazonaws.com/Documentation/Federal%20Hierarchy/QSG%20Opportunities%20Part%204% 20of%204%20-%20Contractors.pdf

Quotes are due on 01 MAY 2020 at 10 AM Eastern Time (0002). Fax submittals will not be accepted. Interested contractors .are highly encouraged to call and schedule a site visit. Please note that the site visit is not an opportunity for questions or clarifications regarding this solicitation. If there are any questions regarding the solicitation please contact Logan Barrett at Logan.d.barrett@usace.army.mil by 22 April 2020 at 2pm Eastern Time.

Site Visit Contact Information:

U.S. Army Corps of Engineers (USACE) Patoka Lake 4512 N Cuzco Rd S, Dubois, IN 47527 812 678-3761

RFQ’s shall be sent to Logan Barrett at Logan.d.barrett@usace.army.mil

All contractors must be registered in the System for Award Management (www.SAM.gov) prior to award of a contract. All proposed contractors are highly encouraged to review FAR Clause 52.232-33 Payments by Electronic Funds Transfer – System for Award Management, which indicates “All payments by the Government under this contract shall be made by electronic funds transfer (EFT).” Those not currently registered can obtain registration by going to the website http://www.SAM.gov. The process can usually be completed from 24 to 48 hours after submission. Contractors will need to obtain a Unique Entity Identifier (formerly DUNS number) for processing their registration. If you do not already have a Unique Entity Identifier, one can be obtained from http://www.SAM.gov.

Refer to www.SAM.gov for information formerly found in CCR, EPLS, ORCA and FedReg.

Please begin the registration process immediately in order to avoid delay of the contract award should your firm be selected.

ALERT: You must submit a notarized letter appointing the authorized Entity Administrator before your registration will be activated. This requirement now applies to both new and existing entities. Effective 29 April 2018, the notarized letter process is now mandatory on all CURRENT registrants at SAM who have a requirement to update data on their SAM record. The notarized letter is mandatory and is required before the GSA Federal Service Desk (FSD) will activate the entity's registration.

Effective 29 June 2018, vendors creating or updating their registration can have their registration activated prior to the approval of the required notarized letter. However, the signed copy of the notarized letter must be sent to the GSA Federal Service Desk (FSD) with 30 days of activation or the vendor risks no longer being active in SAM.

PLEASE NOTE: SAM is completely free of charge for both registrants and users.

SCOPE OF WORK

TECHNICAL SPECIFICATIONS FOR OHIO RIVER PATOKA

SERVICE GATE HYDRAULIC CYLINDERS

1.0 GENERAL/SCOPE OF WORK/SPECIAL INSTRUCTIONS.

1.1 General Information. The Contractor shall provide all labor and materials to fabricate, test, and deliver one (1) hydraulic cylinder per the attached drawings and specifications herein to operate at Patoka Lake control tower. The new cylinder shall have upgrades including but not limited to modern seals, materials, and two each additional ports adjacent to and on the opposite side (180 degrees) of the hydraulic cylinder. The contractor will provide the base as shown in attached drawings PR 18-12.1/48-49 to include the rings, packing, packing seat, packing glands and hardware needed to connect the cylinder to the base. The materials to be used will be in accordance with section 6 and 7 of the attached specifications and will match that of the hydraulic cylinder. (0001)

1.2 Delivery Date. The hydraulic cylinder shall be shipped at the expense of the Contractor to arrive at the following address:

U.S. Army Corps of Engineers (USACE) Patoka Lake 4512 N Cuzco Rd S, Dubois, IN 47527 812 678-3761 Mon.-Fri. 7:30 a.m. to 3:30 p.m. Central Time Notify 48 hrs prior to delivery.

The hydraulic cylinder detailed on the contract drawings must arrive no later than 6 months after award of contract. The hydraulic cylinder shall be shipped per paragraph 10.1, DELIVERY, STORAGE, AND HANDLING of these specifications only after the Contracting Officer’s Representative (COR) has approved the final products.

1.3 Deviations from Specifications. Changes to the materials and designs may be allowed only after approval from the COR. The changes must not change the fit or function of the hydraulic cylinder detailed on the contract drawings. Some changes could require that the Contractor provide design calculations by an engineer that prove that the change meets the governing standards. The specifications are intended to provide the USACE with a hydraulic cylinder with more modern seals and materials than that detailed in the original contract drawings.

Modern upgrades to the cylinder detailed on the drawings are strongly encouraged and desired, but must be approved by the COR.

2.0 APPLICABLE PUBLICATIONS.

The publications listed below form a part of this specification to the extent referenced. The publications listed herein are for the latest published editions of the reference. The publications are referred to in the text by basic designation only.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI B4.1 Preferred Limits and Fits for Cylindrical Parts ANSI B16.11 Forged Steel Fittings, Socket-Welding and Threaded ANSI B31.1 Power Piping ANSI B46.1 Surface Texture (Surface Roughness, Waviness and Lay)

AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)

ASME Y14.5M Geometric Dimensioning and Tolerancing Standard ASME-16 Boiler and Pressure Vessel Code; Section VIII, Pressure Vessels Division 1 - Base Coverage

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM A27 Steel Castings, Carbon for General Applications ASTM A105 Forgings, Carbon Steel, for Piping Components ASTM A108 Steel Bars, Carbon, Cold Finished, Standard Quality ASTM A181 Forgings, Carbon Steel, for General-Purpose Piping ASTM A193 Alloy-Steel and Stainless Steel Bolting Materials For High-Temperature Service

ASTM A194 Carbon and Alloy Steel Nuts For Bolts For High-Pressure and High- Temperature Service ASTM A216 Steel Castings, Carbon, Suitable for Fusion Welding, for High Temperature Service ASTM A240 Chromium and Chromium Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications ASTM A242 High Strength Low Alloy Steel ASTM A266 Forgings, Carbon Steel, for Pressure Vessel Components ASTM A331 Steel Bars, Alloy, Cold Finished ASTM A516 Pressure Vessel Plates, Carbon Steel, for Moderate and Lower-Temperature Service ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing ASTM A564 Hot-Rolled and Cold-Finished Age-Hardening Stainless and Heat-Resisting Steel Bars and Shapes ASTM A576 Steel Bars, Carbon, Hot-Wrought, Special Quality ASTM A659 Steel, Carbon (0.16 Maximum to

0.25 Maximum Percent), Hot-Rolled Sheet and Strip, Commercial Quality ASTM A705 Age-Hardening Stainless and Heat-Resisting Steel Forgings ASTM B505 Copper-Base Alloy Continuous Castings ASTM D3951 Commercial Packaging

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1 Structural Welding Code - Steel

FEDERAL SPECIFICATIONS (FS)

TT-P-38 Paint, Aluminum, Ready-Mixed

STEEL STRUCTURES PAINTING COUNCEL (SSPC)

SSPC-SP1 Solvent Cleaning SSPC-SP3 Power Tool Cleaning

SSPC-SP6 Commercial Blast Cleaning SSPC-SP7 Brush Off Blast Cleaning SSPC-PS25 Red Iron Oxide, Zinc oxide, Linseed oil, and Alkyd Primer

3.0 DRAWINGS.

(1) Contract Drawings. The work shall conform to the following contract drawings which are attached to and form a part of these specifications. The drawings depict making one (1) hydraulic cylinders USACE submits the following drawings for reference and requires one (1) type of hydraulic cylinder as follows:

h2optttc Polygon h2optttc Line

Line

Polygon h2optttc Line h2optttc Line h2optttc Polygon h2optttc Line h2optttc Line h2optttc Line h2optttc Polygon h2optttc Line

Line

4.0 QUALITY ASSURANCE.

4.1 Nondestructive Testing. When doubt exists as to the soundness of any material part, such part may be subjected to any form of nondestructive testing determined by the COR. This may include ultrasonic, magnaflux, dye penetrant, x-ray, gamma ray or any other test that will thoroughly investigate the part in question. The cost of such investigation will be borne by the Government. Any defects will be cause for rejection and rejected parts shall be replaced and retested at the Contractor's expense.

4.2 Workmanship. Workmanship shall be of the highest grade, and in accordance with the best modern practices, to conform with the specifications for the item of work being furnished.

4.3 Quality Control. The Contractor shall establish and maintain a quality control system to assure compliance with the contract requirements, and shall submit records of all quality control operations for the items covered by these specifications.

4.4 Shop Inspection. Unless waived in writing by the Contracting Officer, a Government Inspector will check each unit in the Contractor’s shop to determine the correctness of fabrication. Each unit will be closely checked to ensure that all critical tolerances have been maintained. Errors or defects disclosed shall be remedied by the Contractor without cost to the Government.

5.0 SUBMITTALS. The following information and data shall be provided to the Contracting Officer or the designated representative. Contractor submittals shall be furnished in accordance with the specifications and as herein specified.

5.1 Bid Submittal. Manufacturers shall submit an itemized bid indicating the price per hydraulic cylinder and grand total for review by contracting personnel and technical support representative.

5.2 Shop Drawings. Use of the attached drawings for shop drawings shall be at the Contractor’s option and risk. If the Contractor’s shop practice requires details in addition to, or different from, those shown on the contract drawings, he shall prepare shop drawings and furnish three sets for approval. If approved by the COR, each copy of the drawings will be identified as having received such approval by being so stamped and dated, and one set will be returned to the Contractor. The Contractor shall make any corrections required by the COR.

The approval of the drawings by the COR shall not be construed as a complete check, but will indicate only that the general method of construction and detailing is satisfactory. Approval of shop drawings by the COR shall not relieve the Contractor of the responsibility for complete conformity with the specifications. Shop, fabrication, or shop assembly drawings shall be provided by the Contractor on information not detailed on the Corps- supplied drawings. Any component part of fabricated items omitted on the contract drawings shall be detailed on the shop drawings. If departures from the contract drawings are deemed necessary by the Contractor (and approved by the Contracting Officer or the designated representative), details of such departures, including changes in related portions of the project and reasons therefore, shall be submitted with the shop drawings. The drawings shall show complete details of materials, tolerances, machined surface finishes, and connections.

5.3 List of Materials. The Contractor shall submit evidence satisfactory to the COR that all materials conform to the requirements of these specifications. The Contractor shall also furnish a shipping bill or emorandum of each shipment of finished pieces or members, giving the designation mark and weight of each piece, the number of pieces, and the total weight.

5.4 Quality Control Record. The Contractor shall submit all quality control records for fabrication of the items covered by these specifications.

5.5 Welding Procedure Specification (WPS). Welding specifications are required for all weldments. This information shall be submitted for approval prior to start of fabrication.

Design of welded connections shall be in accordance with the applicable provisions of AWS D1.1 except that provisions for repeated stress will not be required. Hydraulic cylinders shall be welded in accordance with the ASME-16, Section VIII, Division

1. Piping shall be welded in accordance with ANSI B31.1.

5.6 Material Test Reports (MTRs). Certified reports are required for all materials used in fabrication of the cylinders.

5.7 Test Reports. Reports for the hydrostatic testing, and the stress relieving heat treatment of both cylinders shall be submitted and signed by the Contractor's representative.

Radiograph reports and the developed film shall also be submitted.

6.0 MATERIALS.

6.1 General. Materials shall conform to the requirements indicated on the drawings or referred to herein, and when not covered thereby, materials and mechanical equipment of the best commercial grade quality suited to the intended use and as approved by the COR shall be furnished. The manufacturer's name, address, and catalog number shall be permanently displayed on a nameplate securely attached to each major item of equipment.

6.2 Hydraulic Cylinders. The outside of the finished cylinders shall be turned concentric with the bore, and the interior shall be honed to the dimensions, tolerances, and finish shown on the drawings. The finished wall thickness shall not be less than 1". Flanges shall be welded to the cylinder parallel with each other and perpendicular to the cylinder center line.

Tolerances shall be as shown on the drawings. After completion of all welding, the cylinder shall be stress relief heat treated. All welds shall be radiographed, except the structural steel support base which shall be testing using magnetic particle or ultrasonic testing. The radiographs shall become the property of the Government upon delivery of the cylinders. The Contractor shall repair any weld or material defects discovered by inspections at no additional expense to the Government. The assembled cylinders shall be of such straightness that the piston and rod move smoothly therein without any indication of binding or tight spots. The bore shall be hard chrome plated to a minimum thickness of 0.003 inches per side and the finish shall not be less than 16 microinches rms. The surface finish shall be compatible with the seals being used so as to result in zero leakage past the seals. The cylinder material shall be steel conforming to one of the following acceptable materials:

a. Rolled steel plate conforming to the requirements of ASTM A516, Grade 70, and welded flanges conforming to ASTM Al81, Class 70.

b. The tube shall be centrifugal cast steel conforming to the requirements of ASTM A216, Grade WWC, and welded flanges conforming to ASTM Al81, Class 70, or cast from ASTM A216, Grade WWC steel.

c. The tube and flanges shall be a solid trepanned forging conforming to the requirements of ASTM A266, Class 1.

d. The tube shall be machined from ASTM A 519, Grade 1018, heavy wall seamless steel tubing and the flanges shall be machined from ASTM A516 Grade 70 plate.

6.3 Piping Connections. The long weld neck flanges shall conform to ASTM A105. The orientation of the bolt holes shall conform exactly to the contract drawings. An extra set of piping nozzles and pipe supports shall be added adjacent and 180 degrees from those specified on the original drawings for a total of 4 each per cylinder. All piping connections shall blinded with blind flanges (per ASTM A105) with appropriate gaskets.

6.4 Cylinder Heads. Cylinder heads shall conform to ASTM A181 blind flanges or ASTM A516 Grade 70 steel plate. The appropriate plugs and globe valves shall be provided as shown on the contract drawings.

6.5 Piston Rods. The piston rod shall be fabricated from stainless steel conforming to ASTM A564 or ASTM A705, Type 630. The piston rod shall be heat treated to a condition of H-1150 before final machining. It shall be hard chrome plated to 0.005 inch minimum thickness (per side). The final rod surface shall have a roughness height of not more than 8 microinches rms. If the piston rod is composed of two or more pieces, the welds shall be radiographed.

6.6 Pistons. The piston shall be made of an approved steel, ASTM A576, 1045 or cast steel, A27, Grade 60-30 with an aluminum bronze overlay or an approved wear band. The final diameter of the piston shall be sized to match the honed and chromed bore of each cylinder. The finished thickness of the aluminum bronze overlay shall not be less than 1/8 inch per side. All appropriate information concerning materials or alternate materials should be forwarded to the COR for evaluation and approval.

6.7 O-Ring Seals. The O-ring seals shall be Buna N or Viton and designed for 1000 psi service and the 1500 psi hydrostatic test.

6.8 Rod Wiper. The rod wiper shall be a high-strength polyurethane scraper ring which will withstand the impact and the abrasion of materials adhering to the piston rod.

6.9 Piston Seals. Piston seals shall be of zero leakage cup type seals, nonadjustable gland type, designed for 1000 psi service and a 1500 psi hydrostatic test, compatible with hydraulic fluid, resistant to extrusion, and automatically compensate for wear. The seals shall be installed per the instructions and recommendations of the manufacturer. The seals shall be free from nicks and cuts, cleaned, and lubricated before installation. Alternate types may be proposed by the Contractor. All appropriate information should be forwarded to the COR for evaluation and approval.

6.10 Piston Rod Seals. Piston rod seals shall be U-cup type designed for 1000 psi service and a 1500 psi hydrostatic test. The seal material shall be Buna-N or Viton. The seals shall be installed per the instructions of the manufacturer and shall be replaceable without disassembly of the hydraulic cylinder heads. Alternate types may be proposed by the Contractor. All appropriate information should be forwarded to the COR for evaluation and approval.

6.11 Rod Seal Gland and Locking Device Flange/Bushing. The rod seal gland and locking device flange shall be fabricated from bronze conforming to ASTM B505, Alloy No. C95400.

These parts shall be designed to be compatible with the new seals and rod. Alternate types may be proposed by the Contractor. All appropriate information should be forwarded to the COR for evaluation and approval.

6.12 Bolts, Studs, and Nuts. All bolts and studs for the head to flange connections for each cylinder shall conform to ASTM Al93, Grade B7, with ASTM Al94, Grade 2H nuts.

6.13 Piston Rod/Cylinder Keys. ASTM A576 1040 Steel.

6.14 Piston Rod Nut. The piston rod nut shall conform to ASTM A 194 Gr. 2H cut to match the width of the nut detailed on Dwg. PR 18-11/. The nut must be secured with a set screw or a jamb nut to prevent the nut from backing off. If a set screw is used, the piston rod threads must be protected. If a jamb nut is used, it must not interfere with the normal operation of the hydraulic cylinder.

6.15 Hydraulic Fluid. The hydraulic fluid to be used during shop testing and to flush the system after installation shall be a hydraulic oil which has a high viscosity index, low pour point, and antifoam properties.

6.16 Stop Plate/Wiper Plate. ASTM A242 Steel.

6.17 Drain Valves. Two drain valves shall be installed on the head of cylinder. The valves shall be ½” Class 800 forged steel gate valves with 11 to 13% chrome trim; threaded both ends. The body and bonnet shall conform to ASTM A105. Each valve shall have a forged steel bull plug threaded in the open end.

6.18 Wiper Cap. ASTM A240 Type 410 corrosion resistaint steel.

6.19 Spare Parts. The Contractor shall furnish spare parts (with the manufacturer's name and part number) in the quantities listed below:

Item Quantity

Rod Wiper

O-Ring Seals 1 set

Piston and Piston Rod Seals 1 set

7.0 MACHINE WORK. Parts shall be machined to the tolerances on the drawings where decimal dimensions indicated. Tolerances for non-decimal dimensions shall be within 1/64 inch. The outside diameter of the parts shall be cut true to gauges, smooth, and straight for proper fit with mating bushings. The parts shall adhere to ANSI 4.1, Preferred Limits and Fits for Cylindrical Parts and ASME Y14.5M, Geometric Dimensioning and Tolerancing Standard.

7.1 Finished Surfaces. Surface finishes indicated or specified shall be in accordance with ANSI B46.1, Surface Texture (Surface Roughness, Waviness and Lay).Values of required roughness heights are arithmetical average deviations expressed in microinches. These values are maximum. Lesser degrees will be satisfactory unless otherwise indicated. Compliance with surface requirements shall be determined by sense of feel and visual inspection of the work compared to Roughness Comparison Specimens in accordance with the provisions of ANSI B46.1. Values of roughness width and waviness height shall be consistent with the general type of finish specified by roughness height. Where the finish is not indicated or specified it shall be that which is most suitable for the particular surface, provide the class of fit required and be indicated on the detail drawings by a symbol which conforms to ANSI B46.1 when machine finishing is provided. Flaws such as scratches, ridges, holes, peaks, cracks or checks which will make the part unsuitable for the intended use will be cause for rejection.

7.2 Unfinished Surfaces. Unfinished surfaces shall be true to the lines and dimensions shown and shall be chipped or ground free of all projections and rough spots.

8.0 SHOP ASSEMBLY AND TESTING.

The hydraulic power system shall be completely shop assembled and tested insofar as is possible using temporary piping and wiring to determine the correctness of fabrication. Shop tests shall be made in the presence of a representative of the Contracting Officer, unless otherwise waived in writing. Upon satisfactory completion of the tests, preliminary acceptance will be made by the Contracting Officer.

8.1 Cleaning. Extreme care shall be taken during shop assembly to avoid inclusion of foreign materials into the equipment. The interior of the cylinder piping shall be cleaned with lint free cloths and flushed with oil at a minimum velocity of 15 fps which has passed through a 10-micron filter. Mechanical, pressurized, or chemical cleaning IAW Industry Best Practices can be proposed as alternative method. A complete step by step flushing procedure plan including materials and methods shall be submitted to the TPOC for approval (0002).

8.2 Cylinder Tests. Cylinder shall be filled with the specified hydraulic fluid filtered to 10 microns, taking care to exclude all air. The cylinder shall then be hydrostatically tested at 1500 psi for a minimum of 4 hours. With the rod and piston fully retracted, and the pressure applied to the lower side of the piston, the upper end shall be observed for leakage past the piston. The piston shall then be extended and the same test performed. Any leakage past the seals shall be cause for rejection. The cylinder rod and piston shall then be cycled and observed for smooth, even travel. Any operational problems or source of leakage to the outside of the cylinder will be cause for rejection. A representative of the Contracting Officer shall be present at the test, unless otherwise waived in writing.

9.0 PAINTING.

All exposed exterior surfaces of assemblies and equipment except stainless steel, synthetic rubber, and plastic shall be shop primed with an rust-inhibitive alkyd primer (2 mils DFT) and finished with two coats (1.5 mils each coat) of an approved aluminum paint equivalent to Federal Specification TT-P-38 paint. Surface preparation shall be solvent cleaning, SP-1, power tool, SP-3 or brush-off blast cleaning, SP-7, and commercial blast cleaning, SP-6. As much as practical, the coating system shall be applied to individual components and items before assembly to ensure complete coverage and maximum protection against corrosion. Both the primer and finish paints shall be approved proir to use and the manufacturer’s literature shall be sent to the COR for approval.

10. MISCELLANEOUS PROVISIONS.

10.1 DELIVERY, STORAGE, AND HANDLING.

10.1.1 Packaging. The hydraulic cylinder shall not be prepared for shipment until been inspected and accepted for shipment at origin by the Contracting Officer or the authorized representative, unless inspection has been waived in writing. The hydraulic cylinder shall be shipped completely assembled. The assembly shall be provided with adequate protective pads, supports, and blocking. Each cylinder shall be securely restrained to prevent distortion or damage to the painted surfaces in transit. Any loss or damage during shipment, including damage to the painted surfaces, will be considered the responsibility of the Contractor, and shall be replaced or repaired without cost to the Government. All accessories and spare parts shall be packed separately in containers plainly marked "ACCESSORIES ONLY," or "SPARE PARTS ONLY." A packing list, listing the contents of each container, shall be placed in a moisture-proof envelope and securely fastened to the outside of the container.

10.1.2 Shipping. Packing, crating, cradles, etc., necessary to ensure safe shipment are the responsibility of the Contractor and shall become the property of the Government upon delivery of the equipment. The hydraulic cylinders shall be drained and the piping connections sealed. Internal rod supports are not acceptable. The Contractor shall submit his proposal for controlling movement of the piston rod for approval. Machined surfaces shall be adequately protected from corrosion and physical damage.

10.2 WARRANTY.

All equipment shall be guaranteed for a period of 2 years from the date of acceptance.

Replacement parts shall be guaranteed for 2 years from date of replacement. Warranty shall be against defective materials, design, and workmanship. In cases where the equipment manufacturer's advertised minimum guarantee is in excess of 2 years, it shall remain in force for its full period. Upon receipt of notice from the Government of failure of any of the parts during the warranty period, new replacement parts shall be furnished and installed promptly at no additional cost to the Government.

(End of Summary of Changes)