Portable Lift System[1].doc

Maine Department of Transportation

Bid Request

For

Maine Department of Transportation

Portable Heavy Truck Lift System

SPECIFICATION PURPOSE & INTENT – GENERAL

The attached specifications require providing all things necessary, or proper for, or incidental to the furnishing and delivery of the bid item (or items) and associated equipment to Fleet Service/MaineD.O.T., Augusta. The aforementioned bid item shall be of heavy-duty design and construction for extreme service or application. All things not expressly mentioned in these specifications, but involved in carrying out their intent, are required by these specifications and the vendor shall perform the same as though they were specifically mentioned, described and delineated.

The bid item (or items) and all associated equipment shall be furnished complete and in readiness for use as required by the terms of these specifications and in strict accordance therewith. The bid item (or items) and all equipment furnished shall be the manufacturer's current or 2007 listed and published stock model, or models which meet or exceed all the applicable requirements of these specifications. All design, materials and workmanship shall in every respect be in accordance with the best current practices in the industry and all materials used shall be new.

The bid item or items shall be in full compliance with any and all Federal and State of Maine, rules, regulations or codes. Any and all bids or accessory items furnished by the vendor, distributor and/or manufacturers shall be installed in accordance with the highest standards of the industry, full compliance of all applicable Federal and State of Maine rules, regulations or codes and must be completely inspected and serviced prior to delivery.

Fleet Service/MaineD.O.T. reserves the right to expect replacement of any item, component or associated equipment from the vendor, distributor or manufacturer, at no cost to Fleet Service for failure to perform. Fleet Service also reserves the right to require training for operation or maintenance and repair where necessary at no additional cost.

All Warranties and Guarantees are to become effective the date the State of Maine places the bid item (or items) into service.

Since the continuous operation of the bid item (or items) as specified is of the utmost importance and sometimes of an emergency nature, it is necessary that the successful bidder be in a position to render prompt parts and if necessary, service. The successful bidder and subcontractor (if any) must maintain and/or have access to parts inventory within the State of Maine. The parts inventory shall be applicable to the bid item (or items) supplied to the State of Maine and must be of sufficient quantity and variety to offer a level of parts availability of 95% within 48 hours from time of order by Maine DOT. Availability of normally expendable items such as hydraulic lines and hoses shall not exceed 24 hours. Bidder shall attach a proposal program for parts and service availability for evaluation. Review of the bidder's ability to provide prompt parts and service will be a determining factor in the award of bid. Upon award of bid and before delivery of bid item (or items) MaineDOT must receive a complete list of parts containing part description, manufacturer's part number etc. for the entire item or items including any or all accessories which are supplied as part of the bid. This does not relieve the bidder from supplying parts manuals or repair manuals as required in the individual specification. The manufacturer’s manual must be supplied at time of bid.

During the term of the manufacturer's warranty Fleet Services reserves the right to perform any and all warranty work "in house" to meet operational needs or demands with the exception of major engine, transmission and axle rebuild or repair. Fleet Service will recover all parts and labor cost (labor time as allowed by manufacturer's rate manual Fleet Service standard labor rate at the time of repair) by billing the manufacturer and/or dealer. O.E.M. parts may be supplied at no cost by the manufacturer or dealer and will not be billed by Fleet Service, or may be purchased by Fleet Service on the open market to meet operational demands. Any and all defective parts will be returned to the manufacturer or dealer upon request. Additionally, Fleet Service will perform no other paper work other than what is necessary for Fleet Service to track the cost of warranty repair through its own billing system. Manufacturers, dealers or vendors who are selected to any equipment, or accessories to Fleet Service, must place Fleet Service on a mailing list to provide warranty recalls and/or technical updates or service bulletins to the Fleet Manager’s Office of Fleet Service, 105 Capitol St., Station #26, Augusta, Maine 04333.

A paint code and/or name of brand, color and part number of paint must be supplied in order to match paint color.

Either before or after final acceptance any vehicle or equipment which does not meet these requirements may be rejected in whole or returned for correction at no cost.

Minimum Specification for a Heavy Truck Wireless Portable Lift System The following minimum specification is intended to describe a wireless portable four post heavy truck lift with a combination rated capacity of 64,000lbs. The complete unit must meet all applicable Federal, State, and OSHA regulations. The entire unit and all its components must be heavy duty and constructed for continuous extreme duty service.

Item 1: General Requirements

This specification sheet details for the requirements for a Heavy-Duty “Wireless” Portable Lifting System. This system must communicate via Wireless Technology and not through the use of electric connection via power cords and cables to lift the vehicle. The complete system will be a wheel engaging apparatus that can be used in a set of two or four units with a per column capacity of 16,000 lbs.

Item 2: Testing Criteria

Each unit is 100% factory tested to full rated capacity through the full lift height, and each set is 100% synchronized tested to verify system functions before shipment.

Item 3: Facility Requirements

The only facility requirements needed to use the Wireless Portable Lifting System shall be an adequate 110- volt power supply for battery re-charges and a hard, level lift surface.

Item 4: Comprehensive Specification

4.1 The base post to be designed using a wishbone shape and constructed of 10-gauge steel. Each base post to be designed with a series of down stops on both the left and right side, no more than five inches apart. A tire sidewall to post clearance shall be 13 inches. There shall be a minimum footprint of 700 square inches producing a ground pressure of less than 50 psi. Overall structural design to minimize post deflection too less than ¾” at the top under rated capacity. Two urethane tread 3½” diameter spring-loaded casters with roller bearings shall be mounted to the front of the base post.

4.2 The base post to be designed with a set of forklift pockets to allow the user easy portability and to assist in unloading of the systems off the pallets after delivery.

4.3 The carriage assembly to be constructed of a minimum of 3/8” plate. The carriage arms to be designed with a positive grip skid plate pattern that allows for a minimum tire diameter of 19” and a maximum tire diameter of 24.5”. Each carriage assembly to have 8 self lubricated, linear slide pads made of 3/8” thick nylatron material. The front cover to be bolted to the carriage assembly to protect the inner components of this assembly.

4.4 A set of small wheel adapters are available, as an optional accessory, allowing for a smaller wheel diameter of 14.”

4.5 The handle assembly is to function with the assistance of a load activated spring compression design. A two-position detent handle to allow for positioning and latching at different heights, specifically 36” and 39” from the floor. Two non metallic tread eight-inch (8”) wheels made of polyurethane/aluminum core to be mounted on the handle to allow for easy portability. The wheels to include roller bearings for ease of movement.

4.6 The hydraulic power unit must be UL listed and self-contained. 12-volt DC power to be used to operate the power unit. The power unit must have a proportional valve to regulate speed. The power unit is to include a system relief that prohibits overloading of the system. The relief valve must incorporate a tamper-proof design. Fluid must be allowed to by-pass the proportional valve with the operation of a needle valve. The power unit must be equipped with a 3-gallon U.S. capacity reservoir with suction strainer.

4.7 The hydraulic cylinder shall be able to reach a maximum height of 67”. The cylinder shall be inverted to protect the rod. All the internal seals must be serviceable and replaceable. The integrity of the cylinder must be able to withstand a rated load of at least 16,000 pounds and be tested to system pressure of 3,000 psi. The cylinder rod surface must withstand a 72-hour salt spray test to resist against corrosion and wear. A purge port is to be provided to bleed air from the hydraulic circuit.

4.8 The holding valve is an integral component in the design of the hydraulic system. This device is to be mounted directly to the bottom of the hydraulic cylinder. The holding valve shall consist of an internal thermo-relief to protect the cylinder. Design shall include a 12-volt DC weatherproof coil to release fluid from the cylinder. This valve must be able to lock oil pressure into the cylinder in any position. A manual override must be provided in the event of power loss. A test port must be provided allowing for a pressure gauge to read internal cylinder pressure.

4.9 The electric system is to consist of two circuits: a low current circuit and high current circuit. The low current circuit will provide a 30-amp fuse to protect the controls on the control box, proportional valve, holding valve and solenoid-activated down-stops. The high amperage circuit will provide a 300-amp fuse protecting the self-contained hydraulic power unit.

4.10 A Master ON/OFF Switch shall be required to enable disconnection of the battery.

4.11 This secondary down-stop device must be solenoid activated with a compression spring to return the stops. The solenoid is to be an intermittent duty, UL listed component. The maximum amperage is to be 12 amps at 12 volts. The solenoid must be totally encapsulated to prevent contamination of the coil. A sealed limit switch with roller is required to detect the down-stops being retracted and must be UL approved. A series of down-stops is to be located and placed within both sides of the wishbone structure of each column. A minimum number of stops must be at least 12 per side or 24 per column with a distance between each stop of no more than 5”. The down-stops shall begin at a height of no more than 9”.

4.12 A 110 volt On-Board Smart Charger must be included on each of the lifting units. The charger shall have a splash-proof design and provide 6 amps of current for a 12- volt DC battery charge. This multi-stage charger must include a green light indicator when charged. The 3-stage charger is to provide a bulk stage, absorption stage, and float stage. Float stage must maintain the battery charge level without over charging.

4.13 The battery must be a 12-volt, Deep Cycle, Group 31, sealed (spill-proof), AGM (Absorbent Glass Mat) Battery. The battery is to be contained within a dielectric battery container and positioned at the base of each lift column. The battery should be readily available and nationally distributed for ease of replacement.

4.14 The control box enclosure is to be manufactured to meet the NEMA 4X specifications. All control boxes must be identical in design and require no master control to operate. All external connections shall be splash proof to allow for operation in outdoor conditions and/or in a wet environment. Operation requires 12-volt DC power. The exterior of the box shall include the following system features:

4.14.1 LCD (Liquid Crystal Display) multi-line display screen shall provide the operator with real time messages on the status of all lifting units. The LCD display must be backlit with the capability of going into a sleep mode.

4.14.2 An LED (Light-emitting diode) status indicator light must be capable of displaying 3 colors depending on the status of the lifts. Amber light is to be illuminated when the lifts are first initialized, but is to turn a solid green when all lift units are ready for operation. This light begins flashing green once the lifts are raised out of their stowed position. A red blinking light must indicate which lift unit is not responding or has a fault preventing the other lift units from operating. A solid red light shall be displayed when a fault message is detected from any other lift unit.

4.14.3 A “Hold to Run” green colored push button must be depressed when the lifts are raising or lowering during operation. The button will also function as a reset switch for the units if a fault is detected.

4.14.4 A red Emergency Stop button that will allow the units to be shut-off from any location and instantly disabling all lifting units. The button is to be predominantly marked on the control box outer cover. The fault is to be restored by pushing the hold-to-run button on the unit to reset the system after pulling out the emergency stop button. The LED status indicator light shall be flashing red on the unit at fault and the other units will show a solid red light. The LCD display shall also display a message indicating which unit is activated.

4.14.5 Off/Sync/Lock switch will be the main power switch on the control box to activate the system. The switch will synchronize the lifts during start-up by communicating via wireless technology. This will also enable the lift system to be locked out by switching to the lock position to disable all the controls.

4.14.6 Raise/Lower Rocker switch must function as the main control to raise and lower the lift units. The switch will also be used to select the number of lifting units to be used at the initial set-up. The design of the raise/lower rocker switch shall prevent simultaneous activation of the up and down movement.

4.14.7 16-channel selector switches must be mounted to the outside of each of the control boxes allowing multiple units to operate simultaneously, but on different wireless frequencies.

4.14.8 The control box shall incorporate a number of fault codes to inform the operator of any factors that might prevent the lifts from functioning properly.

Item 5 Wireless Synchronized Communications 5.1 A Control System must consist of independent Control Panels, employing wireless communication technology for the purpose of synchronizing multiple lifting mechanisms. Closed loop feedback will be used to ensure each lift is within 1.50” proximity of each other throughout a 67” lift height. Each Control Panel will be independently powered, but work as a system. The controls must operate on an FCC licensed Wireless Technology.

5.2 A linear position transducer must be designed to NEMA 4X specifications. The transducer is to be completely enclosed to prevent debris from contaminating the inside components. The follower cable must have a measurement range of at least 80” and be made of stainless steel.

5.3 Each lifting system must be equipped with a manual lowering override system to allow the user the flexibility of lowering the units during the loss of control box use. Each lift shall include an override toggle down switch to bypass the main control box. The function of the switch will be to utilize the override toggle switch and the needle valve on the hydraulic power source together to manually control the lowering. This toggle switch shall be protected from inadvertent actuation.

Item 6: Lift Unit Specifications

6.1 Capacity per unit ......... 16,000 lbs.

6.2 Capacity per set of 4..... 64,000 lbs.

6.3 Minimum wheel diameter.... 14” (w/ adapters)

6.4 Minimum wheel diameter.... 19” (w/o adapters)

6.5 Maximum wheel diameter.... 24.5”

6.6 Maximum lift height ....... 67”

6.7 Lift speed................ 50” per min (vary w/ load)

6.8 Descent speed............. 50” per min (vary w/ load)

6.9 Weight per column ......... 1,360 lbs.

6.10 Overall Height ............ 93”

6.11 Overall Height (full lift) 148”

6.12 Overall Width............. 43”

6.13 Overall Length ............ 58”

6.14 Turning Radius ............ 48”

6.15 Power source.............. 12-volt DC elec/hyd Item 7: Maintenance

7.1 The lift system components shall require minimal to no routine maintenance.

Item 8: Warranty

8.1 A limited warranty shall be a minimum of 1 (one) year from the original date of purchase. Warranty claims to be made to the manufacturer of the product. All repair parts will be readily available and easily installed by the owner of the equipment.

Item 9: Supplemental Product Accessories

9.1 A set of small wheel adapters will be incorporated to allow for a smaller wheel diameter of 14.”

Item 10: Product Information and Service Literature

10.1 Wireless Portable Lift System must include the following items.

a.Two owner’s and parts manuals per set.

b.One operation/training video per set sold to accompany the units.

c.Quick reference guide for Vehicle Lifting Points and a “Lifting It Right” manual. Each lift unit will include one of each.

Item 11: General

11.1 Bidder shall supply one day’s training on set up and use of system.

11.2 Bidders shall supply a specification sheet and brochure with their bid proposals.

11.3 Exceptions to specifications shall be listed on a separate paper and submitted with bid proposal.

11.4 All bid proposals will include shipping and delivery to MaineDOT Fleet Service, 105 Capitol St. Augusta Me. 04330.

11.5 Bidder shall supply Floor and Power requirements with the bid proposal.

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