ATTACHMENT 06 ADDENDUM 01 SECTION 11 13 19.13.pdf

F-35 ADAL B510 Warehouse and Supply ADDENDUM 01 Truax Field, WI 22 Feb 2022

SECTION 11 13 19.13

LOADING DOCK LEVELERS

08/ 09, CHG 1: 05/ 19

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A143/A143M (2007; R 2020) Standard Practice for Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural Steel Products and Procedure for Detecting Embrittlement

ASTM A153/A153M (2016a) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM D624 (2000; R 2020) Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers

ASTM D2000 (2018) Standard Classification System for Rubber Products in Automotive Applications

ASTM D2632 (2015; R 2019) Standard Test Method for Rubber Property-Resilience by Vertical Rebound

MATERIAL HANDLING INDUSTRY OF AMERICA (MHI)

MHI MH30.1 (2015) Performance and Testing Requirements for Dock Leveling Devices

1.2 DEFINITIONS

1.2.1 Industrial Dock Leveler

A manufactured structure designed to span and compensate space and height differentials between a loading dock and freight carrier to facilitate safe, efficient, freight transfer.

1.2.2 Adjustable Loading Ramp

Synonym for Fixed Type Industrial Dock Leveler.

SECTION 11 13 19.13 Page 1

1.2.3 Fixed Type Industrial Dock Leveler

A dock leveler that is permanently affixed to the dock structure, and usually incorporating a mechanical system to position the dock leveler with respect to the freight carrier at the lip end while being fixed at the opposite hinged end.

1.2.4 Carrier

A wheeled, enclosed trailer or container that, when attached to a heavy-duty truck or van, is used to carry bulk freight over long distances.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-02 Shop Drawings

Detail Drawings; G

SD-03 Product Data

Loading Dock Levelers; G

Dock Bumpers; G

SD-10 Operation and Maintenance Data

Loading Dock Levelers, Data Package 3; G

SD-11 Closeout Submittals

Record Drawings; G

1.4 QUALITY ASSURANCE

1.4.1 Manufacturer's Representative

Furnish services of Fixed Type Industrial Dock Leveler technicians, experienced in installation and operation of the type of system being provided, to supervise installation, testing, adjustment of system, and instruction to Government personnel.

1.4.2 Detail Drawings

Submit drawings depicting dimensions, tolerances, surface finishes, flush edge angles, method of mounting and anchoring. For edge-of-dock levelers, show details of required construction and dock bumpers and structural shapes installation. Show all proposed dock bumper locations on drawings.

1.4.3 Record Drawings

Submit record as-built drawings depicting dimensions, tolerances, surface finishes, flush edge angles, method of mounting and anchoring, including

SECTION 11 13 19.13 Page 2 mechanical components, testing and acceptance for each industrial dock leveler.

1.5 DELIVERY, STORAGE, AND HANDLING

Matchmark and tag parts which are disassembled for shipment with metal tags. Provide waterproofed tags and markings. Protect the delivered equipment in storage from the weather, humidity and temperature variation, dirt and dust, or other contaminants.

1.6 EXTRA MATERIALS

After approval of the detail drawings, and not later than 3 months prior to the date of beneficial occupancy, provide spare parts data for each different item of material and equipment specified. Furnish a complete list of parts and supplies, with current unit prices and source of supply and a list of the parts recommended by the manufacturer to be replaced after 1 and 3 year(s) of service.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Standard Products

Submit data including a complete list of equipment and materials, manufacturer's descriptive and technical literature, catalog cuts, and installation instructions. Provide materials and equipment, which are the standard products of a manufacturer regularly engaged in the manufacture of the products, and that essentially duplicate items that have been in satisfactory use for at least 2 years prior to bid opening. Equipment shall be supported by a service organization that is, in the opinion of the Contracting Officer, reasonably convenient to the site.

2.1.2 Exposed Surfaces

All exposed metal surfaces and fastening materials shall fully comply with the minimum requirements of ASTM A123/A123M , ASTM A143/A143M , and

ASTM A153/A153M .

2.1.3 Nameplate

Attach corrosion-resistant metal plate securely and legibly on the exterior surface of the dock leveler. Include the following information indented or embossed on the plate:

a. Description of the equipment: Describe procedures for operating and services equipment, and warnings or cautions of hazardous procedures.

b. Name of the manufacturer.

c. Serial and model number.

d. Rated capacity in pounds.

e. Shipping weight.

f. Date of manufacture (month and year).

SECTION 11 13 19.13 Page 3

2.2 LOADING DOCK LEVELERS

Provide permanent loading edge-of-dock levelers in accordance with MHI MH30.1 with minimum performance characteristics based on the following:

a. Service Period:

(1) Number of shift operations: 3.

(2) Maximum number of trucks per shift opening: 5.

(3) Maximum number of days per week: 7.

b. Fork Lift Loads:

(1) Design levelers to accommodate 4 wheel fork trucks.

(2) Design levelers to handle 30,000 lb gross dynamic load.

(3) Base load leveler design on number of cycles per loading/unloading operation per truck.

Provide loading edge-of-dock leveler with mechanical type which is manually released at dock leveler and raises by spring action and is lowered by walk-on of dock operator. Make provision for maintenance access to understructure and lifting mechanism. Provide steel tread plate lip and platform, hinged and supported from beneath by steel framework that contains lifting, positioning, and lowering assembly. Ensure that platform surface is flush with surrounding floor surface of loading dock when not in service. Provide integral positive restraint when leveler is in maintenance position.

2.2.1 Design Requirements

Design, fabricate, and finish loading ramp to permit washing with water and detergents, and operating in an ambient temperature from 0 to plus 110 degrees F.

2.2.2 Dock Leveler Height Adjustment

Provide a ramp whose incline can be adjusted to suit the height of the freight carrier. Allow the loading ramp a minimum of 5 inches of operating range above and 5 inches below dock level.

2.2.3 Dock Leveler Extension and Retraction

Extend non-fixed end of the dock leveler from a retracted position behind the line of the loading dock platform bumpers to at least 12 inches beyond the forward edge of the dock platform bumpers so as to rest on the bed of the freight carrier. The difference in length of the platform from its fully retracted position to its fully extended position shall be practically constant throughout the ramp, including the ramp extension.

2.2.4 Loading Ramp Compensation

Provide automatic compensation with ramp platform loaded or unloaded for:

SECTION 11 13 19.13 Page 4

2.2.4.1 Loading and Unloading of the Freight Carrier

Provide mechanical type dock levelers with manual load compensation for truck beds lowered below dock height. When the lip is extended so as to rest on the bed of motor truck or trailer, provide compensation for carrier spring deflection so that contact will be maintained between lip and carrier bed.

2.2.5 Safety Devices

2.2.5.1 Dock Bumpers

Submit certificates showing conformance with the referenced standards contained in this section. Provide ramp and load dock face with laminated rubber, tire-fabric, or equivalent dock bumpers provided by the dock leveler manufacturer.

2.2.5.1.1 Bumper Construction

Construct bumpers of resilient, laminated, rubberized-fabric pads, assembled on steel frames. Rubberized Fabric shall conform to ASTM D2000.

Punch material to receive 3/4 inch supporting rods. Bumpers shall be minimum 4-1/2 inches thick, stand out from the dock, and be closed with two structural steel angles under 1,500 pounds.

2.2.5.1.2 Steel Angles

Angles shall be minimum 3 by 2-1/2 by 1/4 inch steel welded to 3/4 inch Rods at one end (head of rods exposed on face of angle leg) and closed with Fastening Materials, to include threaded rod ends and fastening hardware at the other end. Quantity of rods required for each bumper shall be as indicated and in accordance with approved drawings. The 2-1/2 inch leg of the steel angle on the face of the wall shall have 13/16 inch bolt holes, quantity and spacing as required.

Addendum 01* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

2.2.5.1.3 Finish

Metal for dock bumpers, including Hardware Items, shall be coat ed per manuf act ur er s st andar d ext er i or f i ni sh.

2. 2. 5. 2 Mechani cal Syst em

I ncl ude a spr i ng assi st ed pul l l evel act i vat i on handl e t hat r ai ses t he r amp i nt o t he posi t i on. Pushi ng t he handl e f or war d al l ows t he l i p t o ext end i nt o t he t r ai l er . Pul l i ng t he handl e r emoves t he l i p f r om t he t r ai l er i nt o t he st or ed posi t i on.

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Addendum 01

2.2.6 Rated Capacity

Minimum 30,000 pounds roll over capacity.

SECTION 11 13 19.13 Page 5

2.3 OPERATION

2.3.1 Mechanical Control

Mechanical raising and lowering system. Once the freight carrier has departed, manually return the platform to the stored, level position.

Ensure the ramp, in its stored position capable of being lowered below dock platform level without extending the lip of the ramp.

2.4 CONSTRUCTION AND MATERIALS

Construct all load carrying parts of forged or welded steel. The entire live load carrying surface of the ramp and rear attachment shall be not less than 1/4 inch thick, 55 ksi minimum yield strength, low alloy, nonskid steel tread plate. Bevel the lip or ramp extension. Design load carrying surfaces to permit free movement of powered hand or platform trucks, low lift pallet trucks, and fork lift trucks. Fabricate lip hinge of not less than 1/4 inch wall seamless steel tubing.

2.5 ACCESSORIES

2.5.1 Dock Bumpers

Provide bumpers in accordance with ASTM D2632 and ASTM D624 that are capable of sustaining repeated impacts from trucks or trailers without damage to the dock, dock levelers, or bumpers.

PART 3 EXECUTION

3.1 EXAMINATION

After becoming familiar with all details of the work, verify all dimensions in the field, and advise the Contracting Officer of any discrepancy before performing the work.

3.2 INSTALLATION

Install and adjust in accordance with manufacturer's approved detail drawings, and as-built system assembly drawings. Check and verify the appropriate measurements at the building.

3.3 CLEANING, TREATMENT AND PAINTING

In accordance with manufacturer's standard practice, shop clean, treat and paint ferrous surfaces including platform, lip, frame, and any other non-cadmium plated or non-galvanized surface (but not including bearings, gear contact surfaces, parts protected by lubrication, or other surfaces not usually painted or coated). Clean ferrous surfaces and protect the base metal with an application of a paint manufactured with rust inhibiting chemical additives to a thickness of 2.5 to 3 mils followed by a final coat of standard primer with a thickness of 2.5 to 3 mils.

Protect nonferrous parts against corrosion as necessary.

3.3.1 Workmanship

Conduct field touch-up work as to avoid damaging other surfaces and public property in the area. Do not apply field applied paint during foggy, damp, rainy weather, or the ambient temperatures below 45 degrees F and above 95 degrees F.

SECTION 11 13 19.13 Page 6

Addendum 01* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

3.3.2 Finish Coat Color

Brilliant yellow and black. Paint 3 inch wide black and yellow diagonal stripes on top of ramp surfaces and 6 inch wide yellow band around outside edges (except for fixed edge).

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Addendum 01

3.4 FIELD TESTS

Provide personnel, instruments, materials, and equipment, including test vehicles, for the administration and direction of the tests. Correct defects and repeat tests under the cognizance of the Contracting Officer and the dock leveler manufacturer. The Contracting Officer is responsible for certifying the test load.

3.4.1 Roll-Over Load Tests

Move roll-over load of 30,000 pounds over the dock leveler between the bed of a freight carrier and the building loading dock surface for 10 cycles.

With the ramp extension retracted and the ramp platform leveled with the building loading dock surface, run a 30,000 pound roll-over load over the ramp in various directions for 20 cycles. Do not allow permanent deformation to occur subsequent to examination after these roll-over tests.

3.4.2 Drop Tests

Twice, drop test the dock leveler at the indicated rated capacity as follows: With the load on the platform and the lip resting on a vehicle carrier bed, pull the carrier or pull away from the lip, leaving the loading ramp unsupported. Do not exceed 4 inch for the measured vertical drop of the dock leveler taken at the point where the lip rests on the vehicle carrier during each of the drop tests. Inspect the loading ramp after each drop and ensure no damage or distortion to the mechanical, or structural components.

3.4.3 Acceptance Tests

Perform an acceptance test in the presence of the dock leveler manufacturer and the Contracting Officer subsequent to roll-over load tests and drop tests. Conduct operation of the equipment through all of its motions and specified checks as follows: (a) extend lip to rest on a variety of freight carriers with beds up 5 inch above and below dock level; (b) test 4 inch drop limitation with 7000 pound load on ramp, evenly distributed; (c) test level compensation with the ramp, loaded with a minimum of 7000 pounds.

3.5 INSTRUCTION TO GOVERNMENT PERSONNEL

Upon completion of the work and at a time designated by the Contracting Officer, provide the services of a competent Technician regularly employed or authorized by the manufacturer of the dock leveler to instruct Government personnel in the proper operation, maintenance, safety, and emergency procedures of the dock leveler. Conduct the training at the job site or at any other location mutually satisfactory to the Government and the Contractor.

SECTION 11 13 19.13 Page 7

3.6 OPERATING MANUALS

Operating manuals shall detail the step-by-step procedures required for operation. Operating manuals shall include the manufacturer's name, model number, parts list, and brief description of all equipment and their basic operating features. List routine maintenance procedures, possible breakdowns and repairs, and troubleshooting guides in the maintenance manuals.

-- End of Section --

SECTION 11 13 19.13 Page 8