Spec_378_WHEC_Cutter_Class_Steering_Gear_Motor_for_HSCG40-15-Q-61261.pdf

ORIGINATED BY: Jeffrey McHale DATE: 10 OCT 2013

ORIGINATOR'S COMMAND: US Coast Guard Yard

DEPARTMENT / DIVISION: Electrical Engineering

INTERNAL REVIEWER: Stephen Matelli DATE: 3/5/14

PROCUREMENT SPECIFICATION

UNITED STATES COAST GUARD

378WHEC CUTTER CLASS

STEERING GEAR MOTOR

REVISION NO. 1

378 Steering Motor Procurement Specification REV: 1 10 OCT 2013

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1. SCOPE

1.1. General – The US Coast Guard 378WHEC Cutters are in need of a replacement Steering Gear

Motor. There in not an off-the-shelf solution to replace the 378WHEC Steering Gear Motors.

The Vendor shall Engineer, fabricate, and/or modify a replacement motor for the 378WHEC

Class Cutter steering pump motors. The Replacement Motor shall be identical in the aspects of form, fit, and function.

1.2. Contract Deliverables

1) Special Order Electric Motor with attached Brake.

2. APPLICABLE DOCUMENTS

2.1. US Coast Guard Technical Publication 3278B_561_C (Existing Motor).

2.2. US Coast Guard Technical Publication 3278B_561_E (Steering System).

2.3. US Coast Guard Technical Publication 3278B_561_B (Hydraulic Pump).

2.4. Military Specification MIL-M-17060 (Specification of Electrical Motors, 60 Hz, Alternating

Current, Integral-Horsepower, Shipboard Use).

3. REQUIREMENTS

3.1. General

3.1.1. The Vendor shall review the provided documentation and perform all necessary investigations to ensure the Motor is an exact replacement in form, fit, and function.

3.1.2. The Vendor shall engineer and fabricate a replacement Electric Motor which will bolt into place of the existing motor. The complete documentation for the existing motor is contained in Technical Publication 3278B_561_C (Document 2.1).

3.1.3. The Motor will be connected to the Jered steering gear system (Document 2.2).

3.1.4. The Motor will drive the Dynapower hydraulic pump (Document 2.3) as described in

Document 2.2.

3.2. Electric Motor

3.2.1. Motor Specifications – The motor shall meet the following specifications:

NEMA Frame 286T (Existing 286U)

Mounting Direction Horizontal

Design Code B

Duty Varying (See Note 5.1)

Horse Power 30

Ambient Temperature 50˚C

Rotations Per Minute 1800

Speed Type Constant

Enclosure Totally Enclosed

Insulation Class N (See Note 5.2)

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3.2.2. Electrical Input specifications – Characteristics of the electrical supply:

Voltage 450VAC

Phase 3

Cycles 60Hz

Breaker 100 Amp Trip

3.2.3. Physical Dimension – The Motor shall meet all necessary measurements to fit in place of the existing motor.

a. The motor foundation hole bolt pattern shall be an 11"x 11" square at hole centers.

The foundation holes shall be large enough to provide clearance for a 3/4" diameter stud.

b. The motor shaft height and length shall be the same as the existing motor.

c. The motor face offset shall be the same as the existing motor.

d. See the attached documentation for further details on the motor's dimensions.

3.2.4. Features – Special feature of the motor:

1) NEMA Code 'Z' – Non-Standard Motor Shaft. The motor shaft shall meet the specification of the attached drawings.

2) NEMA Code 'N' – 7 ¼" Flange (Special Pump Connection). The pump shall meet the specifications of NEMA Code 'N'. See the attached documentation for further details.

3.2.5. Operation – Description of the motor's operation:

The motor is used to drive a hydraulic pump for the ship's steering system. While the ship is underway the motor will run continuously, but at inconsistent and varying loads. For further information on the operation of the motor see the attached technical documentation.

3.3. Brake

3.3.1. The Brake shall attach to the back of the motor.

3.3.2. The torque rating of the brake shall be at minimum 125 ft-lb (foot-pounds).

3.3.3. The Brake will be actuated when the motor starts.

3.4. USCG Responsibilities

3.4.1. The USCG shall provide additional information, as necessary, per the request of the

Vendor.

3.5. Restrictions

3.5.1. The Motor shall meet the latest revision of Military Specification MIL-M-17060.

3.6. Literature

3.6.1. The Vendor shall provide a complete list of all replacement parts with prices.

3.6.2. The Vendor shall provide a complete specification which can be used to purchase additional, identical, motors and brakes.

3.6.3. The Vendor shall provide a complete set of installation, operation, and maintenance manuals for the Motor and Brake assembly.

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4. QUALITY ASSURANCE

4.1. General

4.1.1. The Vendor shall perform all necessary tests to guaranty under warranty:

1) The motor meets all listed specifications.

2) The motor is capable of operating at environment temperatures of 50˚C.

3) The Motor and Brake are free of defects and deficiencies of any and all kinds.

4.2. Testing

4.2.1. The Vendor shall perform all necessary First Article testing procedures to ensure the proper operation of the motor and brake.

4.2.2. The Vendor shall provide any necessary pre-operation and initialization testing procedures which may need to be performed after the installation of the motor.

4.3. Warranty – The Vendor shall assume responsibly for defects and deficiencies in the Motor and

Brake for a minimum of twelve (12) months of continuous service. Warranty service or replacements shall NOT incur the US Coast Guard any additional cost.

4.4. Vendor Eligibility

4.4.1. The Vendor shall provide, to USCG Yard Engineering, a CAD drawing (Compatible with

AutoCAD 2009) of the motor which the Vendor proposes to deliver.

4.4.2. The Vendor shall be a manufacturer and/or distributer of electrical supplies or equipment capable of producing customized electrical motors.

4.4.3. The Vendor shall prove it is capable of delivering and warranting the motor described in this specification.

5. NOTES

5.1. While the ship is underway the motor will run continuously, but at inconsistent and varying loads. The existing motor has been classified as both 'Continuous Duty' and '1/2 Hour Varying

Duty' in its documentation. The Vendor shall select the most appropriate duty classification and guarantee, under warranty, the duty classification is adequate.

5.2. The existing motor was documented to have 'N' Class insulation. If the Vendor finds that the more common 'F' Class is sufficient, the Vendor may use 'F' Class insulation and guaranty it is sufficient under warranty.

5.3. Potential Sources – Manufacturers meeting the technical requirements of this Specification are, but not limited to, the following:

5.3.1. Baldor Electric Company

7071A Dorsey Run Rd

Elkridge, MD 21075

PH: 410-579-2135

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6. CONTACT INFORMATION

6.1. USCG Yard Electrical Engineering

Jeffrey McHale

2401 Hawkins Point Rd.

Baltimore, MD 21226

Phone: (410)636-7355