Appendix B VRC.doc

APPENDIX B

FOR

VERTICAL LIFT

AT

EGLIN AIR FORCE BASE, FL.

AMU BUILDING 1417

CSN: AEG0D0

DATE: 15 JULY 2010

PREPARED BY:

Andrew J Huser

PROJECT ENGINEER

403 SCMS/GUEC

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Table of Contents

11. SCOPE

2. APPLICABLE DOCUMENTS

3. REQUIREMENTS

3.1. SYSTEM DESCRIPTION

3.2. PERFORMANCE AND PHYSICAL CHARACTERISTICS

3.2.1. INTERFACE

3.2.2. CAPACITY

3.2.3. LIFT PLATFORM/CARRIAGE

3.2.4. LIFTING/LOWERING SPEED

3.2.5. LIFT HEIGHT

3.2.6. TRAVEL LIMIT SWITCH

3.2.7. APPROACH RAMP

3.2.8. Mechanical Lift

3.2.8.1. Lifting and lowering

3.2.8.2. Travel Activation

3.2.8.3. Overload/jam protection

3.2.8.4. chain failure

3.2.8.5. Fail-safe braking

3.2.9. Hydraulic Lift

3.2.9.1. HYDRAULICS

3.2.9.2. HYDRAULIC FLUID

3.2.10. SUPPORT COLUMNS

3.2.11. DEFLECTION UNDER LOAD

3.2.12. SAFETY FEATURES

3.2.12.1. SAFETY CAMS

3.2.12.2. SAFETY ENCLOSURES

3.2.12.2.1 Maintance SAFETY ENCLOSURES

3.2.12.3. SAFETY GATES

3.2.12.3.1. Maintanance GATE

3.2.12.4. SIGNS

3.3. ELECTRICAL CHARACTERISTICS

3.3.1. POWER FAILURE

3.3.2. MOTORS

3.3.3. CONTROLS

4. QUALITY ASSURANCE PROVISIONS

4.1. INSPECTIONS

4.2. TESTS

4.3. CERTIFICATIONS

AUTONUMLGL \* Arabic SCOPE

This appendix establishes the minimum performance, design, fabrication, installation and test requirements for a vertical lift for the 33rd Fighter Wing, in AMU Building 1417 at Eglin Air Force Base, FL. The work shall be completed in accordance with this appendix, the Cover Purchase Description (PD), and Air Force (AF) drawings AEG0D0-01 and AEG0D0-02. This appendix covers all equipment, materials, and labor necessary to complete installation of the system.

AUTONUMLGL \* Arabic APPLICABLE DOCUMENTS

Applicable documents shall be in accordance with Section 2 of the Cover PD.

3. REQUIREMENTS

AUTONUMLGL SYSTEM DESCRIPTION

A mechanical or hydraulic vertical lift shall be installed to interface with the mezzanine (Appendix A) in Building 1417. The work shall be completed in accordance with this appendix, the Cover Purchase Description (PD), and Air Force (AF) Drawing AEG0D0-01. The lift will be used to transport items between the ground floor and the mezzanine floor.

3.1.1. PERFORMANCE AND PHYSICAL CHARACTERISTICS

3.1.1.1. INTERFACE

The Contractor shall ensure that the lift shall interface with the mezzanine and all system components to allow for a smooth transition of material between operating levels. The horizontal gap between the lift carriage and each mezzanine floor shall be minimized and shall not exceed 1-inch. The vertical gap shall be less than 1/4-inch between the lift platform height at the upper level position and the mezzanine floor.

3.1.1.2. CAPACITY

The lift shall have a load capacity of 2,000 pounds to full lift height. Overload protection shall be provided which shall prevent damage to the system if the lift carriage is loaded to more than 2,100 pounds (105% of the rated capacity.)

3.1.1.3. LIFT PLATFORM/CARRIAGE

The lift platform or carriage (herein called carriage) shall be steel deck plate. Handrails shall be provided on the non-accessible sides and be designed and constructed in accordance with OSHA 1910.23. The rails shall be either the 2-rail or 3-rail type. The top rail shall be 42 inches above the carriage deck plate. The rails shall be a minimum 1-1/4 inch, schedule 40 steel tubing. A kick plate shall be provided on the non-accessible sides. The kick plate shall be minimum 4-inches high with no more than 1/4-inch clearance between the carriage deck plate and the bottom of the kick plate. The kick plate shall be minimum 14-gauge steel and shall be securely fastened to the deck plate or rails. Safety chains with snap hooks shall be provided on the accessible sides of the lift carriage. The carriage shall be 60 inches +/- 2 inches wide by 60 inches +/- 2 inch deep with a minimum 84 inch load height.

3.1.1.4. LIFTING/LOWERING SPEED

The lift shall have a minimum lifting and lowering speed of 20 feet per minute (fpm).

3.1.1.5. LIFT HEIGHT

The lift shall have an appropriate lift height to interface with the existing mezzanine top of floor, approximately 11 feet.

3.1.1.6. TRAVEL LIMIT SWITCH

The lift shall be equipped with an adjustable positive mechanical stop or electrically controlled limit switch to limit the upward and downward travel of the lift carriage assuring positive leveling with each mezzanine deck or the top of the approach ramp. The lift shall slow and stop smoothly and quietly preventing damage to items on the carriage, the lift, the mezzanine, and the floor while aligning at the upper and lower levels.

3.1.1.7. APPROACH RAMP

A metal approach ramp shall be provided at the lower level for ease of loading and off-loading pallet jacks and carts. The gap between the approach ramp and carriage deck shall not exceed 1/2-inch. The ramp shall be securely fastened in place to prevent shifting during use. The ramp shall permit 2,000 pound carts to be pushed between the warehouse floor and the carriage deck without snagging at either end of the ramp.

3.1.1.8. Mechanical Lift

3.1.1.8. Lifting and lowering

The lifting and lowering of the lift carriage shall be provided by lift chains and sprockets on a common shaft powered by a helical gear reducer assembly.

3.1.1.8. Travel Activation

Carriage travel shall begin by depressing the up or down button, which shall activate the motor reducer in the proper direction and release the brake. As the shaft and sprockets rotate, the lift chains shall travel up or down moving the carriage until it trips the limit switch at the desired level. At this point the motor shall shut off and the brake shall engage.

3.1.1.8. Overload/jam protection

In the event of excessive current draw, an overload relay shall shut down the unit whenever the motor is working beyond the normal load requirements.

3.1.1.8. chain failure

In the event of a chain failure, the lift shall shut down.

3.1.1.8. Fail-safe braking

Fail-safe braking shall be provided by a spring set disc brake, which shall release only when the motor is powered-up. In the event of a power failure, the brake shall automatically engage.

3.1.1.8. Hydraulic Lift

If a hydraulic lift is used, the raising and lowering of the lift carriage shall be provided by dual cylinders suitably mounted on the unit. To minimize cylinder stroke and wear, the lift shall have a minimum 4 to 1 ratio of carriage movement to cylinder stroke.

3.1.1.11. HYDRAULICS

The hydraulics shall be of sufficient capacity to lift and lower the lift carriage at its maximum capacity. The lifting system shall provide for smooth lifting and lowering of the load. Provisions shall be made to protect the hydraulic system. An adjustable pressure relief overload valve shall open when pressure exceeds 105 percent of the maximum pressure required to lift a 2,000 pound load to full elevation. Hydraulic valves, cylinders, and motors shall have a means for preventing oil and fluid from dripping or running onto the floor and electrical components.

AUTONUMLGL HYDRAULIC FLUID

Hydraulic fluid shall be environmentally friendly, zinc-free, anti-wear hydraulic oil specifically developed to provide a high degree of biodegradability and meet the performance requirements of high-pressure hydraulic equipment. Operating temperature shall be between -22 and 200 degrees Fahrenheit. The fluid shall be 97 percent or greater readily biodegradable as measured by the CEC-L-33-T82 test method. The fluid shall be fully miscible with conventional petroleum oils and compatible with typical hydraulic oil seal materials. The fluid shall not gum or clog the valves, or corrode the ram or cylinders. Hydraulic fluid shall not be highly flammable. No portion of the system shall leak hydraulic fluid.

3.1.1.9. SUPPORT COLUMNS

The lift shall have a minimum of two 6-inch wide support columns.

3.1.1.10. DEFLECTION UNDER LOAD

When fully loaded, no portion of the lift or approach ramp shall exhibit plastic (permanent) deformation.

3.1.1.12. SAFETY FEATURES

The Contractor shall provide the following safety features for the lift.

3.1.1.12.1. SAFETY CAMS

Dual safety cams shall be mounted on the carriage and connected directly to the lifting wire ropes, cables or chains. In the event of cable or chain failure, the uncontrolled descent shall be limited to a maximum of 4 inches by the dual cams or other positive mechanical means.

3.1.1.12.2. SAFETY ENCLOSURES

A wire-type cage shall be installed to completely enclose all sides of the lift upper and lower levels. The safety enclosure shall conform to OSHA 1910.212. The enclosures shall be of a size such that it will reject any object 1/2 inch in diameter or larger. One continuous enclosure that encompasses the lift to a minimum of 7 feet above the second level shall be installed.

3.2.12.2.1 Maintance SAFETY ENCLOSURES

A wire-type cage shall be installed to completely enclose all sides and top of the lift maintenances area at the lower levels. The safety enclosure shall conform to OSHA 1910.212. The enclosures shall be of a size such that it will reject any object 1/2 inch in diameter or larger. One continuous enclosure that encompasses the lift to a minimum of 7 feet above the first level shall be installed.

3.1.1.12.3. SAFETY GATES

The safety enclosure shall have safety gates at both levels on the access side of the lift for loading and off-loading materiel. The gates shall be electrically and mechanically interlocked with carriage movement. The gates shall be prevented from being opened when the carriage is in motion. The lift shall not move or operate unless both gates are in the closed position. The interlock shall allow the gates to be opened only when the carriage is at rest at the same level as the gate. The gates shall be the overhead type or swinging type. The gates at each level shall provide an opening which is a minimum of 84 inches high and 60 inches wide to facilitate the loading and off-loading of materiel. Gates shall be capable of being manually secured in the closed position.

3.2.12.3.1. Maintanance GATE

The maintenance enclosure shall have a safety gate on the opposite side of the lift loading and off-loading gate. The gates shall be the swinging type. The gate shall provide an opening which is a minimum of 84 inches high and 60 inches wide to facilitate the maintenance operations. Gates shall be capable of being manually secured in the closed position.

3.1.1.12.4. SIGNS

Safety signs shall clearly state the capacity of the lift and that the lift shall not be used for transporting personnel. Signs shall be clearly visible (lettering shall be at least 2 inches high) and securely fastened to all points of access and at each lift operational control point.

3.1.2. ELECTRICAL CHARACTERISTICS

3.1.2.1. POWER FAILURE

In the case of a power failure, the lift shall stop instantly and the carriage shall remain in position with no more than an 8-inch drift over a minimum 24-hour period.

3.1.2.2. MOTORS

The motor shall be sized for the full rated load and shall operate on the electrical characteristics as they exist at the site. Gear reducers (if provided) shall not leak oil, and shall be of equal horsepower design to the mating motor. The motor shall be equipped with thermal overload devices in accordance with NFPA 70, Article 430, Part C. The motor shall not restart automatically when the overload device is reset.

3.1.2.2. CONTROLS

There shall be two sets of controls for each lift: one located at the bottom or lower level of the lift and one located at the mezzanine level. The controls shall be located near the gates on each level. Each control set shall operate the upward and downward movement of the lift carriage. The controls shall be the momentary contact push-button type and each shall have an emergency stop button. When the up button is pushed and released, the carriage shall travel to the upper level position and stop automatically, remaining there. When the down button is pushed and released, the carriage shall travel to the lower position and stop automatically, remaining there. The emergency stop button shall stop all movement of the lift carriage in both upward and downward directions. Once the emergency stop devices are reset the lift carriage shall not start automatically but only start when the up or down buttons are pushed and released. While the lift carriage is in motion, pushing any button, other than the emergency stop button, shall have no effect on lift travel.

4. QUALITY ASSURANCE PROVISIONS

4.1. INSPECTIONS

The system shall be inspected to verify that it meets all the requirements of Sections 1, 2, and 3 of this appendix and the Cover PD. These inspections shall be completed as part of the system checkout test and again as a part of the quality conformance test.

4.2. TESTS

The following tests shall be performed on the system as part of the system checkout test and again as a part of the quality conformance test.

shall fail the test.

4.3. CERTIFICATIONS

The contractor shall provide certification that the following requirements have been met. All certifications shall be provided in accordance with the contract data requirement list.

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Offeror:

-R-

Appendix B, Vertical Lift, 15 JULY 2010

This questionnaire shall be completed by the Offeror. All entries to this questionnaire shall be typed. The questionnaire will be used to determine the Offeror's understanding of the requirements and acceptability of the proposed equipment. Please attach product literature/cut sheets for all equipment detailed in this questionnaire and attach any exceptions to the Purchase Description Appendix or recommendations/design alternatives as detailed below.

Vertical Lift manufacturer and model number: _______________________________________________________________

Has product literature/cut sheets been provided as specified above:_____________

3.1.

3.1.1.2.

How many lifts will be provided? ______________

Will the lift have overload protection if the lift carriage is loaded to more than 105% of the rated capacity?

3.2.12.2.

3.2.12.2.1.

Will a safety enclosure be installed to completely enclose all sides of the lift upper and lower levels?

Will a safety enclosure be installed to completely enclose all sides and top of the lift maintenance level?

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EXCEPTIONS/RECOMMENDATIONS/DESIGN ALTERNATIVES

Attach any exceptions taken to the Purchase Description Appendix. Please outline those concerns in detail. Your exceptions will be reviewed to determine acceptability.

Are exceptions taken?

YES

NO

Number of pages attached: ____________________________________

Attach any recommendations or design alternatives you feel may enhance operation, maintainability, or reduce system cost. Your recommendations and design alternatives will be reviewed to determine acceptability.

Are recommendations/design alternatives attached?

YES

NO

Number of pages attached: ____________________________________

We have read the requirements of the Purchase Description Appendix and will comply with all paragraphs as written, with exceptions taken only to those items indicated on the attached exception sheet.

Offeror's Signature Date

TYPED NAME:

COMPANY NAME:

ADDRESS:

PHONE:

FAX:

_1239543509