Attachment 1_Item Description_F135 Lift Trailer Requirements.pdf

F135 Lift Trailer

Narrative:

The trailer will need to lift an engine up into a stationary test adapter for a user to install the engine into a fixture.

The trailer will also need to retrieve the engine safely once testing is done and return the engine to the original height to place on a transport trailer. The trailer must include safety features to ensure protection of the asset and the operator in the case of a loss of power or other sources of energy. The trailer must also meet the following specs.

Government Specifications:

The following specifications and standards are required for this project.

Department of Defense Standards and Specifications

MIL-PRF-23377 Primer Coatings: Epoxy, High-Solids

MIL-PRF-26915 Primer Coating, for Steel Surfaces

MIL-DTL-53030 Primer Coating, Epoxy, Water Based, Lead and

Chromate Free

MIL-DTL-81706 Chemical Conversion Materials for Coating

Aluminum and Aluminum Alloys

MIL-PRF-85285 Coating: Polyurethane, Aircraft and Support

Equipment

MIL-STD-130 Identification Marking of U.S. Military Property

MIL-STD-209 Interface Standards for Lifting and Tie-down

Provisions

MIL-STD-810 Environmental Engineering Considerations and

Laboratory Tests

MIL-STD-882 Standard Practice System Safety

MIL-STD-889 Dissimilar Metals

MIL-STD-1366 Interface Standard for Transportability Criteria

MIL-STD-1472 Human Engineering

MIL-STD-1791

Air Force Standards and Specifications

Designing for Internal Aerial Delivery in Fixed

Wing Aircraft

AFI 32-7086

Test Operations Procedure Standards and

Specifications

Hazardous Materials Management

TOP 2-2-800

American Welding Society Standards and

Specifications

Center of Gravity

D1.1/D1.1M Structural Welding Code–Steel

D1.2/D1.2M

Society of Automotive Engineers Standards and Specifications

Structural Welding Code–Aluminum

AMS-STD-595/26173 Gray, Semi-gloss

AMS-STD-595/31136 Red, Lusterless

AMS-STD-595/37038 Black, Lusterless

AS8090

Tire and Rim Association

Mobility, Towed Aerospace Ground Equipment, General Specification For

TRA YEAR BOOK Tire and Rim Association, Year Book

Requirements:

General Description: The engine trailer is a mobile, hydraulically self-supporting trailer, which is made up of a set of rails connected to an elevating main frame by a hydraulically controlled linkage system. A towbar forward and a pintle hook aft provide means of transporting the trailers individually or in groups.

Protective Coatings: Materials that deteriorate when exposed to sunlight, weather, or operational conditions normally encountered during the service life of the item shall not be used or shall have means of protection against such deterioration that does not prevent compliance with the performance requirements specified herein. Protective coatings that chip, crack, or scale with age or extremes of climatic conditions or when exposed to heat shall not be used. Exposed surfaces of fasteners, handles, and fittings shall also be primed and painted.

Surface Preparation and Pretreatment: Surface preparation and pretreatment shall be in accordance with the respective primer and topcoat specifications. Structures shall be cleaned, degreased, and scuffed or blasted prior to priming; primer shall be applied before any oxidation or rusting occurs. Aluminum surfaces shall have MIL-DTL-

81706, Type II, Class 1A, chemical conversion coating applied in accordance with the manufacturer’s directions prior to priming or shall be anodized in accordance with MIL-A-8625, Type II, Class 1, prior to priming.

Primer: Raw metal edges, to include fastener and drain holes, shall be coated with primer before applying topcoat.

Ferrous Surfaces: Ferrous structures and surfaces shall be primed with zinc rich primer in accordance with MIL-

PRF-26915, Type I, Class A. This shall be followed with a compatible intermediate epoxy primer, following manufacturer’s curing and overcoat recommendations. Specification for intermediated epoxy primer will be either

MIL-DTL-53030 or MIL-DTL-53022, Type IV.

Topcoat: Topcoat shall be polyurethane in accordance with Type I or Type IV, Class H of MIL-PRF-85285. Neither

Chemical Agent Resistant Coating (CARC) nor powder coating shall be used. Topcoat shall be applied to a dry film thickness of 1.6 to 2.4 mils in all instances, regardless of the primer system utilized. The coating shall be free from runs, sags, orange peel, or other defects.

Drainage: Drain holes shall be provided to prevent collection or entrapment of water or other unwanted fluid in areas where exclusion is impractical. All designs shall include considerations for the prevention of water or fluid entrapment and ensure that drain holes are located to effect maximum drainage of accumulated fluids. The number and location of drain holes shall be sufficient to permit drainage of all fluids when the unit is in a 10 degree incline in any plane. The minimum size of the drain holes shall be 0.25 inch.

Markings: All external devices which require an operational or maintenance interface shall be marked in accordance with MIL-STD-130. Markings shall be applied with decals and shall be 1-inch high block letters unless prohibited by the available space. In such cases, the markings shall be the largest size possible. Markings, Information/Caution shall be Lusterless Black, Color Number 37038 of SAE-AMS-STD-595, and Markings, Warning/Danger shall be Lusterless Red, Color Number 31136 of SAE-AMS-STD-595. The center of gravity of the trailer shall be stenciled on the unit within 1.0 inch of the calculated center of gravity.

Identification Plate: An identification plate in accordance with MIL-STD-130 shall be securely attached to the engine trailer in a readily accessible location. The identification plate shall contain the following information:

nomenclature, part number, serial number, date of manufacture, manufacturer’s name, Commercial and Government

Entity (CAGE) code, date of warranty expiration, and National Stock Number (NSN). The engine trailer and any of its components for which the Government’s unit cost is more than $5,000, is serially managed, or the procuring agency determines is mission essential, shall have Unique Identification (UID) (also known as Item Unique

Identification (IUID)) information permanently affixed on or near the respective identification plate(s), marked in accordance with MIL-STD-130.

Transportation data plate: A transportation data plate shall be securely attached to the engine trailer in a readily accessible location. The plate shall contain at least the following information:

a. Side and rear silhouette views of the engine trailer.

b. Horizontal and vertical location of the center of gravity of the engine trailer in air transportable configuration, marked on the silhouette views.

c. Shipping weight.

d. Loading cubage.

e. Overall height, width, and length.

f. Front and rear axle loads.

g. Tie down information.

Interchangeability: Fabrication and assembly processes and techniques shall be such as to support, without degradation, the interchangeability requirements of the design. Like units, assemblies, subassemblies, and parts shall be physically and functionally interchangeable without modification of such items or of the equipment.

Maintainability: The engine trailers shall be designed for maintainability in accordance with 5.9 through 5.9.18 of

MIL-STD-1472; forces shall not exceed those specified for both males and females.

Operators: The trailers shall be designed such that a maximum number of three operators are needed, which are two pumpers and one spotter. The desired number of operators is one pumper and one spotter.

Service life: The trailers shall be designed for a minimum service life of 25 years.

Foreign object damage (FOD): All loose metal parts, such as pins or connector covers, shall be securely attached to the engine trailer with wire ropes or chains. "Dog tag" style beaded chains shall not be provided. Removable panels, if provided, shall be attached with captive fasteners. Tire valve stem caps shall be made of plastic.

Operating temperature range: The engine trailer shall be capable of operating in ambient temperatures ranging from -40 degrees Fahrenheit F to +140 degrees Fahrenheit.

Storage temperature range: The engine trailer shall be capable of being stored in ambient temperatures ranging from -40 degrees Fahrenheit F to +140 degrees Fahrenheit.

Paved surfaces: The engine trailer shall be towable at speeds up to 20.0 miles per hour (mph) over paved surfaces

(unloaded in low position) and at speeds up to 10.0 mph (with rated load in low position).

Rail spacing: 60”

Minimum rail length: 170”

Minimum lifting capacity: 10,000 pounds

Minimum lifting height: 105”

Maximum total trailer width: 130”

Minimum rail height: 29”

Minimum Wheel number requirement: 4

Tread: 72”

Tires and wheels: The tires shall be in accordance with the TRA Year Book requirements for this application, 6.50-

10 NHS, 10 ply rating, or larger. The wheels shall be retractable by hydraulic lifts, with the two front wheels interconnected and steerable. The wheels shall turn 90º from the forward position and lock for side movement. The wheels may be manually disconnected from the steering linkage for side movement.

Wheel cylinders: The wheel cylinders shall be equipped with mechanical positive locks in case of hydraulic failure.

The wheel cylinder assemblies shall be capable of raising or lowering the rated load.

Clearances: Ground clearance, ramp break over angle, and angles of approach and departure shall be in accordance with 3.3.9 of SAE AS8090.

Steering: The engine trailer shall have a steering system in accordance with 3.5.1.1 of SAE AS8090.

Parking brakes: The engine trailer shall have parking brakes in accordance with 3.6.1 of SAE AS8090, except that a lever for control of each parking brake is acceptable.

Pintle hook: A pintle hook shall be mounted on the rear of the engine trailer in accordance with SAE AS8090.

Towbar: A telescoping tow bar 44.5 to 72 inches long shall be provided with the engine trailers. All towing operations shall be performed with the base frame at a maximum ground clearance and with the lift frame fully collapsed with all locks engaged. The towbar shall be in accordance with 3.17.1 of SAE AS8090. It shall have a lunette eye in accordance with A-A-52464 and accommodate any pintle hook height from 22 through 30 inches.

When in operation or storage (that is, not being towed), the towbar shall be stored on the side of the rail (along the right side channel), secured, and not hinder visibility, operation, or maintenance.

Hydraulic system: The hydraulic lift shall be provided with hydraulic cylinders. Each cylinder shall be equipped with a mechanical position-locking device to prevent lowering or tipping in the event of hydraulic line failure. A visual indicator shall indicate when the position-locking device is engaged or disengaged. The position-locking device shall be manually disengaged. The hydraulic lift shall raise the rails in a vertical direction with a variance of not more than 0.5-inch on either side of the true vertical. The hydraulic lift shall raise the rails in a vertical direction with a variance of not more than 1.25-inch -inch on either side of the true vertical.

Lift controls: The hydraulic lift provisions for the rails and wheels shall be located at one operator’s position on the left side of the trailer. They shall be designed to enable one operator to raise the rails or the main frame, maintaining a level height of the rails and frame. The provisions shall also enable one operator to control one end of the rail or frame.

Secondary locking mechanism: A secondary mechanical locking mechanism shall be incorporated into the design.

This secondary locking mechanism shall be external from the hydraulic system. This secondary locking mechanism shall enable maintainers to service the unloaded trailer and replace cylinders while the rails are in a lifted position.

Cylinder settling rate: After the endurance test, the cylinder settling rate shall not exceed 0.0625 inches per hour.