MasterFormat: 95

SpecWizard: customize this spec    Download this Facade Maintenance Equipment Specification for   WORD | WP | RTF | TEXT

Find over 500 more construction specifications | Arcat.com

	SECTION 11014
	FACADE MAINTENANCE EQUIPMENT
	** NOTE TO SPECIFIER ** R&R Scaffolding Ltd.; building maintenance and window washing systems products. . This section is based on the products of R&R Scaffolding Ltd., which is located at: 2 Barrett Ave. Moonachie, NJ 07074 Tel: 201-438-3020 Fax: 201-438-9585 Email: request info Web: www.rrscaffold.com [ Click Here ] for additional information. R&R Scaffolding's focus is on permanently installed building maintenance systems (window washing scaffolds) as well as rental, sales and service of temporary suspended access. Our maintenance division services almost 200 buildings, with more than 150 of them in New York, NY and is one of the largest suspended scaffolding companies in the tri-state area. R&R Scaffolding Ltd. has a proven track record for delivering both small and large projects on time and within budget and is known throughout the industry as an organization that tackles even the most challenging projects with honesty and integrity. Safety is the main determining factor in every facet of R&R's work, including productivity, reputation, employee relations and financial results. Contact R&R for Facade maintenance systems or window washing scaffolds that are custom manufactured to the specifications and characteristics of each building. R&R has a full compliment of engineers and designers who will assist you with your project from the design phase up to and including the final approval. Our experienced consultants can assist you with any project; no project is too large or small.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
	** NOTE TO SPECIFIER ** Delete items below not required for project.
		A.	Roof mounted facade maintenance equipment.
		B.	Electric Operators and Controls.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 03300 - Cast in place Concrete: Concrete runways and installation of embedded items.
		B.	Section 03400 - Precast Concrete: Structural and architectural concrete anchorage.
		C.	Section 05120 - Structural Steel: Structural support and reinforcing.
		D.	Section 05500 - Metal Fabrications: Davit / track support pedestals.
		E.	Section 07500 - Membrane Roofing: Flashing and sealing at roof penetrations.
		F.	Section 07760 - Roof Pavers: Concrete pavers and ballast Materials. Pavers and ballast at roofs and roof terraces.
		G.	Section 08910 - Metal Framed Curtain Wall: Platform stabilization / vertical guide tracks.
		H.	Section 16130 - Raceway and Boxes: Empty conduit from control station to operators.
		I.	Section 16150 - Wiring Connections: Electrical service to operators.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	ANSI A1201.1 - Safety Requirements for Powered Platforms for Exterior Building Maintenance".
		B.	AISC 303 - Code of Standard Practice for Steel Buildings and Bridges", including the "Commentary" thereto.
		C.	AISC 360 - Specification for Structural Steel Buildings, Load and Resistance Factor Design, including the "Commentary" thereto.
		D.	ASME A120.1-2001 - Safety Requirements for Powered Platforms and Traveling Ladders and Gantries for Building Maintenance.
		E.	American National Standards Institute (ANSI): ANSI/IWCA I-14.1 - Window Cleaning Safety 2002.
		F.	AWS D1.1 - Structural Welding Code, Steel.
		G.	AWS D1.2 - Structural Welding Code, Aluminum.
		H.	NFPA 70 - National Electric Code.
		I.	Underwriters Laboratories - UL Listings.
		J.	California/OSHA Title 8 Articles 5 and 6.
	** NOTE TO SPECIFIER ** Include the following two paragraphs for New York State only. Delete if not required.
		K.	NYS Industrial Code, Rule 21 (Section 21.3 amended 10/1/66). Protection of persons employed at Window cleaning, Structural requirements, Equipment & procedures.
		L.	Advisory Standards 101 NYS Dept. of Labor (Effective 5/23/73). Construction, operation and maintenance of suspended scaffolds used for Window cleaning and light maintenance.
	1.4	SYSTEM DESCRIPTION
		A.	System General:
			1.	Components constructed of heat-treated aluminum alloy, stainless steel, or hot-dipped galvanized structural steel.
			2.	Dissimilar metals, when used, protected against electrolytic actions. Connectors shall be stainless steel unless otherwise noted.
			3.	Use certified welders to make all welds and provide non-destructive testing of all welds.
			4.	Components in contact with facades and the platform casters to be a non-marking and scuff resistant material.
			5.	Exterior finish of all roof carriages and all other factory painted assemblies shop painted with machinery enamel, color as directed by the Architect. All aluminum assemblies natural color; mill finish. All carbon steel components shall be hot-dipped galvanized.
			6.	Provide mill test reports on wire suspension rope and metals, aluminum or steel, used in the manufacture of the permanently installed components and portable equipment to verify compliance with design and specification requirements.
		B.	System Components: Major elements of the building facade maintenance system are as follows:
	** NOTE TO SPECIFIER ** Edit the following paragraphs to include only the equipment required.
			1.	Building Maintenance Unit and Platform on WF Track or Concrete Runway.
			2.	Power Inclined Shunt Carriage on WF Track.
			3.	WF Track System complete with support pedestals.
			4.	Concrete Runway provided as specified in Section 03300.
			5.	Rolling (Inclined) Gantry or Ladder with Powered or Manual Traverse.
			6.	Exterior or Interior Gantry or Ladder track and supports.
			7.	Exterior or Interior Galvanized Steel Monorail System with Turntables and Trolleys or Deflector Sheaves.
			8.	Powered Rolling Davit System on Track roof or parapet mounted.
			9.	Davit Pedestals System and required Fastening Hardware (roof rigged system).
			10.	Davit Bases and required Fastening Hardware.
			11.	Portable Davit Sockets, Davit Arms, Davit Raising Winch, Davit Transfer Winch.
			12.	Outrigger Pedestals System and required Fastening Hardware (ground rigged system).
			13.	Outrigger Bases and required Fastening Hardware.
			14.	Portable Outrigger Sockets, Portable Outriggers.
			15.	Safety Tieback Anchors for controlled descent and fall protection.
			16.	Horizontal Lifelines complete with support pedestals.
			17.	Powered Modular Stage Platform or Powered Work Cage.
			18.	Portable Wire Rope Raising Device (aid with ground rigging).
			19.	Portable Wind Anemometer.
			20.	Platform Intermittent Stabilization Anchors, supplied only.
			21.	Platform Tie-in Devices, vertical guide track as specified in Section ______.
			22.	Drop through Sleeves with Portable Rigging Device.
			23.	Pull Under Brackets.
	1.5	DESIGN / PERFORMANCE REQUIREMENTS
		A.	General:
			1.	Design installation to provide continuous contact between the platform and the structure as the platform descends and ascends.
			2.	Design equipment under the direction of a Professional Engineer registered in the state where the project is located.
			3.	Design structural members with a minimum 4:1 safety factor based on ultimate strength and normal operating conditions. All stresses and deflections are limited in accordance with governing codes and regulations.
		B.	Wind:
			1.	Design installations to withstand 25 miles per hour wind velocities while being used under normal operations and to be fully operational at wind velocities up to 50 miles per hour.
			2.	Design installations to withstand 100 miles per hour wind velocity when in their secured stored positions.
			3.	Exposed areas subjected to wind pressure shall be the total areas of all portions of the exposed parts with no shielding effect of one element by another where the distance between elements is four times or more than the smaller projected area of the windward element.
		C.	Performance: Comply with the most stringent requirements of applicable codes and other statutory requirements, including the current requirements of the following:
			1.	Occupational Safety and Health Act (OSHA): OSHA Part 1910, paragraph 1910.66 "Power Platforms for Exterior Building Maintenance."
			2.	ANSI A1201.1 "Safety Requirements for Powered Platforms for Exterior Building Maintenance".
			3.	ANSI/IWCA I-14.1 - Window Cleaning Safety.
			4.	National Electric Code including UL listed electrical components.
			5.	American Institute of Steel Construction (AISC): AISC "Load and Resistance Factor Design Specification for Structural Steel Buildings", including the "Commentary" thereto and AISC "Code of Standard Practice for Steel Buildings and Bridges", including the "Commentary" thereto.
			6.	American Welding Society (AWS): AWSD1.1 "Structural Welding Code, Steel", and AWSD1.2 "Structural Welding Code, Aluminum.
	** NOTE TO SPECIFIER ** Include the following paragraph for California only. Delete if not required.
			7.	California/OSHA Title 8 Articles 5 and ).
	** NOTE TO SPECIFIER ** Include the following two paragraphs for New York State only. Delete if not required.
			8.	NYS Industrial Code, Rule 21 (Section 21.3 as amended 10/1/66). Protection of persons employed at Window cleaning, Structural requirements, Equipment & procedures.
			9.	Advisory Standards 101 NYS Dept. of Labor (Effective 5/23/73). Construction, operation and maintenance of suspended scaffolds used for Window cleaning and light maintenance.
			10.	American Society of Mechanical Engineers (ASME): ASME A120.1-2001, Safety Requirements for Powered Platforms for Building Maintenance.
	1.6	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	Product Data: Manufacturer's data sheets on each product to be used, including:
			1.	Description of major items of equipment and catalogue cut sheets.
			2.	Preparation instructions and recommendations.
			3.	Storage and handling requirements and recommendations.
			4.	Installation methods.
		C.	Shop Drawings: Dimensioned shop drawings showing layout, profiles and product components, including anchorage, accessories and finish, and with general arrangement of the equipment and their working positions. Include location and characteristics of required electrical connections.
		D.	Structural Calculations: Calculations prepared and certified by a Licensed Professional Engineer registered in the State where the project is located. Include design assumptions and method of design including loads imposed on the building structure and curtain wall.
		E.	Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.
		F.	Test Reports: Certified test reports showing compliance with specified performance characteristics and physical properties.
		G.	Manufacturer's Certificates: Certify products meet or exceed specified requirements.
		H.	Operation and Maintenance Data: Manuals that are bound and neatly labeled describing operation and maintenance of all equipment installed including cleaning materials and methods and a detailed rescue plan.
			1.	Provide listing of replacement parts, including identifying numbers and ordering instructions.
			2.	Provide a sample inspection log for Owner's use in recording inspections; include recommended list of daily, weekly, periodic, and biannual inspections.
		I.	Project Record Documents: Submit project as-built drawings showing actual installed locations and configuration, and record specifications documenting all changes to original design criteria, wiring diagrams and other specification requirements.
	1.7	QUALITY ASSURANCE
		A.	Manufacturer/Installer Qualifications: Firm with minimum 10 years experience in manufacturing and installing of facade maintenance equipment, with documented experience with installations of type specified.
		B.	Perform all tests required by local regulatory authorities. Required tests shall be made in the presence of the authorized representative of such local authorities and the Facade Maintenance Equipment manufacturer and installer shall issue a certificate of adequacy for the equipment, installation and testing.
	1.8	DELIVERY, STORAGE, AND HANDLING
		A.	Store products in manufacturer's unopened packaging until ready for installation.
		B.	Protect materials from exposure to moisture.
		C.	Store materials in a dry, warm, ventilated weathertight location.
		D.	Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.
	1.9	PROJECT CONDITIONS
		A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.
	** NOTE TO SPECIFIER ** Carefully coordinate the Structural and Electrical Drawings and Specifications with the requirements of R&R Scaffolding for interface with the structure for structural, facade and electrical requirements specified in this section. Contact R&R Scaffolding for additional information.
	1.10	COORDINATION
		A.	Coordinate Work with other operations and installation of exterior facade, roof deck, structural supports, embedded anchors and roofing materials to avoid damage to installed materials and components.
		B.	Coordinate with other operations and installation of electrical service and locations of power panels.
	1.11	MAINTENANCE CONTRACT
		A.	Provide a one-year equipment maintenance contract for regular maintenance and services up to six times per annum.
		B.	Include an option to renew the Maintenance Contract for an additional three years.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: R&R Scaffolding Ltd., which is located at: 2 Barrett Ave. ; Moonachie, NJ 07074; Tel: 201-438-3020; Fax: 201-438-9585; Email: request info; Web: www.rrscaffold.com
	** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
		B.	Substitutions: Not permitted.
		C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
	** NOTE TO SPECIFIER ** Carefully edit the following paragraphs to select the equipment required; coordinate with requirements of R&R Scaffolding on product options and substitutions. Contact R&R Scaffolding for additional information.
	2.2	BUILDING MAINTENANCE UNIT ON STRUCTURAL STEEL TRACK SYSTEM
		A.	Structural Steel Track System: Provide supports, track system and related work necessary for a complete installation. Coordinate compatibility of the total system with the building structure and notify the Architect if incompatibility exists. Verify attachment to the building to load carrying members is within allowable limits.
			1.	Fabricate tracks and track supports from structural steel shapes.
			2.	Curved tracks shall be smooth continuous radii (not segmented).
			3.	Provide stops to prevent wheel carriages from leaving the end of the tracks.
			4.	Provide for removal and inspection of wheel assemblies during routine maintenance.
			5.	Locate exterior track system for controlled positioning of the unit to allow the stage platform to be safely suspended in working position over the side of the building, at any designated position.
			6.	Hardware, shims, clips, bolts, nuts, washers, etc. shall be stainless steel.
			7.	Track system shall include workstation alignment components, as necessary, to assure programmable positioning of carriage.
			8.	Size track to permit pedestal spans of a maximum 10 feet (3048 mm) center-to-center.
			9.	Track system shall accommodate thermal expansion and contraction without adversely effecting the horizontal movement and proper operation of the carriage.
		B.	Concrete Runway System: Provide anchors and related work necessary for a complete installation. Coordinate compatibility of the total system with the building structure and notify the Architect if incompatibility exists. Verify that attachment to the building to load carrying members is within allowable limits.
			1.	Coordinate with the installation of concrete platform specified in Section 03300 Cast-In-Place Concrete.
			2.	Curved runways shall be smooth continuous radii (not segmented).
			3.	Include stops to prevent wheel carriages from leaving the runway where required.
			4.	Provide for removal and inspection of wheel assemblies during routine maintenance.
			5.	Locate exterior runway equipment for controlled positioning of the unit to allow the stage platform to be safely suspended in working position over the side of the building, at any designated position.
			6.	Hardware, shims, clips, bolts, nuts, washers, etc. shall be stainless steel.
			7.	Include workstation alignment components, as necessary, to assure programmable positioning of carriage.
		C.	Electrically Powered Carriage System: Roof (drum) mounted electrically powered carriage system shall be designed and installed so as to safely maintain the suspended powered working platform in working positions over the side of the building.
			1.	Include with all safety interlocks as required.
			2.	System shall provide the following functions:
				a.	Provide transportation for the working platform to any work position selected by the operators to provide coverage to exterior areas of building designated to be maintained.
				b.	Provide suspension, of the working platform as required, and provide a safe and efficient means during raising and lowering of the platform during operational moves as required.
			3.	System electrically powered and includes the following features as a minimum:
				a.	Horizontal Movement; friction drive, to traverse track system.
				b.	Telescopic Suspension Boom; Rack and pinion drive to aid in reaching all external faces of building.
				c.	Telescopic Mast; to permit the entire assembly to lower below the roofline.
				d.	Counterweighted rear boom; positioned at the rear of the machine to counterbalance the stage and imposed loads.
		D.	Powered (Inclined Track) Shunt Carriage: The carriage is to contain the hoisting equipment necessary to traverse the sloped sections of track system.
			1.	Inclined movement of the rail mounted track shunt carriage shall be controlled to ensure safe movement and accurate positioning and shall not exceed a traversing speed of 50 feet per minute (1524 mm/minute). System for ascending and descending must have positive contact at all times (e.g. Rack/Pinion). Traction/Friction drive shall not be considered.
			2.	Drive shall be on an undercarriage (truck) that will keep the roof carriage level, and vertical at all times. Equip undercarriage with an automatic braking system to prevent unintentional traversing. In addition, the undercarriage shall have a secondary overspeed brake (rail grab) on each rail beam that will automatically engage upon failure of the primary brake system; or if the carriage reaches an overspeed condition in excess of the 50 feet per minute (1524 mm/minute). Carriage design shall allow emergency service and internal equipment access.
			3.	Traversing controls shall be of a continuous pressure weatherproof type. Multi controls when provided shall be arranged to permit operation from only one control station at a time.
			4.	Shunt Carriage Features:
				a.	Power Requirements; 208/220 VAC, 3 Phase, 60 HZ, 30 AMP. provided by a dedicated electrical circuit. Electric cord to be on an electric power reel, mounted on the unit, which will automatically payout and collect the cord during movement. Reel shall have interlocks to stop travel before the cord reaches its end.
				b.	Safety Features; Designed to comply with regulatory requirements. Machine shall be equipped with numerous safety devices to ensure the safety of all personnel and correct operation of all different mechanisms including:
					1)	Emergency Stop: An emergency stop button on the control panel of the equipment housing on the control box to immediately cut all electric controls and engages brake system(s).
					2)	Overspeed Safety Device: Hoist shall be fitted with a safety overspeed governor that shall cut the power to the hoist and engages brake system(s).
		E.	Building Maintenance Unit and Platform:
			1.	Rotating Cross Boom: Provide a powered pivoting cross boom to keep the platform parallel to the face of the building. The cross boom rotates through 180 degrees.
			2.	Turret Rotation: Provide a slewing ring to permit safe access for personnel onto the platform by rotating the turret. This also aids reaching all external faces of building.
			3.	Roof Mounted Drum Hoist: Provide dual suspension, roof mounted drum with wire rope, safety devices limit switches.
			4.	Communication System: Provide a communication system between the stage platform and the roof-mounted unit.
			5.	Stage Platform: Enclosed stage shall be fabricated from lightweight high strength aluminum and designed for two persons. A non-slip flooring, water containers, controls, lower trip bar, etc. shall be incorporated within the stage. Minimum stage capacity shall be 500 pounds
			6.	Power Requirements: 208/220 VAC, 3 Phase, 60 HZ, 30 AMP provided from a dedicated electrical circuit. Locations shall be coordinated with Section 16150.
			7.	Electric power supply cord shall be on an electric power reel, mounted on the unit, which automatically payout and collects the cord during movement. Reel shall have interlocks to stop travel before the cord reaches its end.
			8.	Safety Features; Design window-cleaning machine to comply with all relevant regulatory standards. Equip the machine with safety devices to ensure the safety of all personnel and correct operation of all different mechanisms:
				a.	Emergency Stop: Emergency stop buttons shall be provided at each end of the working platform to immediately cut all electric stage controls of the system.
				b.	Lower Limit Safety Device: A lower obstruction detector fitted under the stage shall be provided, to immediately stop the lowering of the stage should it come into contact with an obstacle.
				c.	Upper Limit Safety Device: An upper limit switch automatically stopping the stage when it reaches the upper position shall be provided.
				d.	Overload Safety Device: Device shall be provided to ensure safety when the stage is overloaded.
				e.	Final Upper Limit Safety Device: This safety device shall be provided to operate should the upper limit switch fail, for whatever reason. This device shall cut all electrical controls of the machine.
				f.	Slack Wire Rope Safety Device: A sensor shall be provided to check that the wire rope is under tension. If the tension fails, the sensor shall halt further lowering of the hoist.
				g.	Overspeed Safety Device: The hoist shall be fitted with a safety overspeed governor that shall cut the power to the hoist.
				h.	Traversing End Limit Safety Device: Device shall be fitted to the two powered driven bogies. It shall halt the trolley at the end of the track.
				i.	Slewing Safety Device: Device shall be provided to stop the slewing function when it reaches the maximum rotation.
			9.	Other Equipment/Accessories: Electrical control, interlocks and attachments for a safe and efficient operation shall be provided.
	2.3	POWERED ROLLING DAVIT SYSTEM
	** NOTE TO SPECIFIER ** Select one of the following paragraphs for roof mounted or parapet mounted davit carriages. Delete the paragraphs not required.
		A.	Powered Rolling Davit Carriages on Track System (Roof Mounted):
			1.	Self-powered, rolling davit carriages, roof mounted parallel horizontal track rails shall be provided. Each carriage shall have a two-piece, tilt-up rotating davit arm. The system shall be designed and installed by the BME Contractor, so as to safely maintain the suspended powered working platform in working positions over the side of the building. Including all safety interlocks as required.
			2.	The horizontal movement of the powered rolling davit carriages shall be controlled so as to ensure safe movement and accurate positioning and shall not exceed a traversing speed of 50 feet per minute (1524 mm/minute). Horizontal travel may be by friction wheel drives.
		B.	Powered Rolling Davit Carriages on Track System (Parapet Mounted):
			1.	Self-powered, rolling davit carriages, parapet mounted parallel vertically stacked horizontal track rails shall be provided. Each carriage shall have a two-piece, tilt-up rotating davit arm. The system shall be designed and installed by the BME Contractor, so as to safely maintain the suspended powered working platform in working positions over the side of the building. Including all safety interlocks as required.
			2.	The horizontal movement of the powered rolling davit carriages shall be controlled so as to ensure safe movement and accurate positioning and shall not exceed a traversing speed of 50 feet per minute (1524 mm/minute). Horizontal travel may be by friction wheel drives: on upper and lower track sections.
		C.	Powered Rolling Davit Carriages General Requirements:
			1.	The stability factor of each system shall be calculated or proven by tests, considering the suspended scaffold in its most outboard positions for traversing, operating and storage. The system's stability shall be obtained by attachment to structural supports and track systems.
			2.	For horizontal traversing, considering a 10 psf (480 Pa) wind load applied to the equipment, the stability factor shall not be less than 4 including the effects of impact.
			3.	Equipment shall be capable of withstanding the highest wind velocities expected, for the specific area, when the equipment is in a non-use or stored position (wind velocity used shall be 100 mph (160 km/hour).
			4.	Additional Features:
				a.	An automatically applied braking system shall be provided that will prevent unintentional traverse of the powered rolling davit carriages.
				b.	A key lockout for the power supply shall be provided to prevent their unauthorized use.
				c.	Enclosures and/or guards shall be installed to prevent accidental contact by personnel with moving parts or pinch points.
				d.	Interlocks shall be provided on the carriage and power cord reel to prevent any undue strain on the power cord and to prevent it from being trapped between the carriage wheels and the roof tracks.
				e.	Traversing controls shall be of a continuous pressure weatherproof type. Multi controls when provided, shall be arranged to permit operation from only one control station at a time.
			5.	Each work station shall be identified by indexing vanes (clamped to track rails)
			6.	Power Requirements: 208/220 VAC, 3 Phase, 60 HZ, 30 AMP provided from a dedicated electrical circuit. Coordinate panel locations with Section 16150.
			7.	Electric power supply cord shall be on an electric power reel, mounted on the unit, which automatically payout and collects the cord during movement. Reel shall have interlocks to stop travel before the cord reaches its end.
			8.	Operating controls shall be connected and interlocked so that traversing of the powered rolling davit carriages and/or rail mounted track shunt carriage(s) is not possible until:
				a.	The suspended scaffold is to be located at its uppermost outboard position for traversing and is free contact with the face of the building, and at its innermost position on the davit arm. Controls shall be accessible from the suspended scaffold.
				b.	All protective devices and interlocks are in the proper position to allow traversing of the carriage.
			9.	Other Equipment/Accessories: Electrical control, interlocks and attachments for a safe and efficient operation.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.4	DAVIT PEDESTALS AND FASTENING HARDWARE
		A.	Hot dip galvanized permanently attached steel davit pedestals shall be supplied for mounting to structure with stainless steel fastening hardware / cast-in-anchor bolt cage (if required). Each pedestal is fitted with a safe attachment point for securing the worker's safety line. Davit pedestal will be accurately machined to receive the portable davit socket. It shall be shimmed as necessary during installation to steel / cast-in-anchor bolt cage. Davit Base Pedestals:
			1.	Davit Pedestal, Weld To Steel.
			2.	Davit Pedestal, Embedded Anchor Bolt.
			3.	Davit Pedestal, Thru Bolt.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.5	DAVIT BASES AND FASTENING HARDWARE (New York Style):
		A.	Hot dip galvanized permanently attached steel davit bases shall be supplied for mounting to pre-installed davit pedestals with stainless steel fastening hardware. Each base is to be fitted with a safe attachment point for securing the worker's safety line. The davit bases will be accurately machined to receive the portable davit arms. They shall be shimmed as necessary during installation to steel davit pedestals.
		B.	Sufficient hot dip galvanized steel davit pedestals are to be supplied and installed by others.
	2.6	ROOF DAVITS AND DAVIT BASES
		A.	Provide two-piece, tip-up, rotate able, mechanically raised, standard aluminum davits. The davits are to be designed to allow workers to mount the maintenance platform on the roof level and swing the platform outboard over the parapet or railing. Davits to be provided with wheels or a cart for transporting between sockets. In the locations noted, davit arms shall be permanently installed in the sockets and capable of rotating down, with mechanical assist, when not in use.
		B.	The sockets shall be bolted to preset bases. Sockets shall be fabricated from carbon steel and hot-dipped galvanized after fabrication.
		C.	Bolts, with lock washers and nuts, and other hardware for fastening sockets to the preinstalled pedestals shall be stainless steel. (NY State requires that the hardware used to fasten davit bases to pedestals be stainless steel)
	2.7	FLUSH OR PORTABLE DAVIT EQUIPMENT
		A.	Flush or Portable Davit Bases: Hot dip galvanized steel davit bases shall be supplied for attachment to davit pedestals. The davit sockets are to be accurately machined to receive the portable davit arms. Flush or Portable Davit Bases:
			1.	Flush Davit Pedestal, Weld To Steel.
			2.	Flush Davit Pedestal, Embedded Anchor Bolt.
			3.	Flush Davit Pedestal, Thru Bolt.
		B.	Portable Davit Arms: Davit arm is comprised of two sections. The vertical mast section is to be constructed from high strength aluminum tubing. At the upper end of the mast an integral pivot pin with safety toggle facilitates engagement and securing of the horizontal boom portion of the davit boom. The davit boom is to be extruded aluminum complete with trolleys with sealed bearing and position retaining devices.
			1.	The davit arm mast shall be designed to engage the portable davit base / fixed davit bases while in the horizontal position. Once the mast is pinned to the portable davit socket / fixed davit bases the boom portion of the arm is attached and then the entire assembly is pivoted into the upright position. Safety pins are to be provided to allow positive engagement with the davit base to secure the davit in its vertical working position.
			2.	A self-lubricating, upper bearing, roller collar shall be provided on the boom to ease boom rotation under all loading conditions.
			3.	Davit boom and mast shall be designed as separate sections. Carrying handles are to be provided on the davit booms and masts; along with transporting wheels near the base of the davit masts to ease transfer.
			4.	The davit arms shall be of sufficient height to permit the arms to rotate and land the suspended platform on the roof for transfer to subsequent service drop positions.
			5.	The davits shall be designed to support a safe working load of 1150 lb (522 kg) per arm. Two davits working together shall be rated to support a total of 2300 lb (1043 kg).
		C.	One portable davit-raising winch shall be supplied to provide a mechanical means for raising the davit arm from a horizontal position to a vertical work position. The manually operated hand winch shall incorporate a load brake system.
	2.8	POWERED MODULAR STAGE PLATFORM
		A.	The self-powered modular stage platform (supported by four wire ropes: 2 primary and 2 secondary) is fabricated of aluminum to give a lightweight and rigid structure. The stage is permanently enclosed to a height of 42 inches (1067 mm) with aluminum-perforated sheet. The deck shall consist of aluminum-extruded sections with a non-slip surface surrounded by a six-inch toe-guard on all sides. The two powered end sections of the platform can be attached together by removing the center sections of the stage to accommodate all required stage lengths to perform stage service drops around the building perimeter. Provide wheels or casters on all platform sections. Safe working load shall be 500 lb (227 kg) and shall be exclusive of the weight of the stage and the cables. (Provisions to be made so both powered ends can be used independently as single man work cages).
		B.	The modular self powered platform 2 foot 6 inch (762 mm) wide by length as required, 500 pound (227 kg) capacity for two men for window cleaning and light building maintenance as indicated on the drawings and described in the equipment schedule shall be provided.
		C.	Provide 2-1/2 inches (64 mm) minimum diameter non-marking facade rollers at the inboard side of the platform. The roller assemblies shall be designed to maintain contact with the building facades.
		D.	Provide traction type electric hoist with dual 5/16 inch (8 mm) wire suspension ropes and associated powered wire winder to prevent the suspension rope tail lines from hanging below the platform. Suspension wire ropes shall be long enough to negotiate the buildings full height at all intended working stations with four (4) full wraps remaining on the wire winder. The secondary wire rope shall pass through an overspeed rope grab device with a governor that shall automatically activate should the platform achieve an overspeed conditions. Furthermore if failure occurs of one wire rope or suspension attachment the stage platform shall not upset.
		E.	Operating speed of the platform, during ascent or descent, shall be approximately 35 feet per minute (11 m/sec).
		F.	Provide two emergency stop switches, one at each operator's stations that shall stop any further platform travel, up or down, after either is activated.
		G.	Provide with individual controls for each hoist for raising, lowering and leveling of the platform.
		H.	Provide a platform overload and slack wire device at each hoist.
		I.	Provide an upper travel limit switch at the top fairlead of each hoist with an interlock system to prevent further upward movement in the event the platform contacts the support.
		J.	The work deck of the platform shall have small openings or holes to allow the passage of air and to prevent uplift of the platform due to wind pressures. Openings shall not allow tools or other normally carried equipment to pass through.
		K.	Provide a painted metal sign, attached to the platform, stating the maximum load capacity of the platform / system (500 lb (227 kg) Live load).
		L.	Provide non-corrosive metal water tanks for carrying fresh water, with faucets at the bottom for draining.
		M.	Provide a fire extinguisher mounted on the platform.
		N.	Provide lower obstruction detectors that will stop any further downward travel after contacting an obstruction from below.
		O.	Provide a level sensing system that will prevent the platform from being out-of-level by more that five (5) degrees. The system to be arranged so that either hoist operator can correct any out-of level.
		P.	All connectors, bolts, self-locking nuts, washers, etc. shall be stainless steel.
		Q.	Provide a factory installed 5/16-inch (8 mm) diameter horizontal galvanized wire rope safety (static) line at the rear midrail level of the stage platform for the attachment of the lanyards from the worker's fall protection equipment. The static line shall be secured to a structural member of the platform's deck at both ends. The connections shall be capable of sustaining a minimum of 5000 pounds (2268 kg) before failure. Rope clips shall not be used.
		R.	Device shall be provided to lower the platform manually, at a controlled rate, in case of an emergency.
		S.	Power Requirements; 208 VAC, 3 Phase, 60 HZ, 30 AMP. The power locations will be provided during shop drawing submissions. The stage platform is to be powered by a dedicated electrical circuit from power outlets. The electric cord is to be collected in a bin, mounted on the platform.
		T.	Provide stage tie down anchors. Tie downs shall have a round base, which extends a minimum of eight inches above the roof membrane, for ease of flashing. The anchor eye attachment shall be stainless steel.
		U.	Provide metal hoist covers.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.9	OUTRIGGER PEDESTALS AND FASTENING HARDWARE
		A.	Install the following equipment as specified in Section ______.
		B.	Sufficient hot dip galvanized, permanently attached steel outrigger pedestals shall be supplied for mounting to structure with appropriate stainless steel fastening hardware / cast-in-anchor bolt cage (if required). Each pedestal is fitted with a safe attachment point for securing the worker's safety line.
		C.	Outrigger pedestal shall be accurately machined to receive the portable outrigger socket and shall be shimmed as necessary during installation to steel / cast-in-anchor bolt cage.
		D.	Roof Mounted Outrigger Pedestal:
			1.	Weld To Steel.
			2.	Corner Weld To Steel.
			3.	Embedded Anchor Bolt.
			4.	Corner Embedded Anchor Bolt.
			5.	Thru Bolt.
			6.	Corner Thru Bolt (31+35).
		E.	Ceiling Mounted Outrigger Pedestal:
			1.	Weld To Steel.
			2.	Corner Weld To Steel.
			3.	Embedded Anchor Bolt.
			4.	Corner Embedded Anchor Bolt.
			5.	Thru Bolt.
			6.	Corner Thru Bolt.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.10	OUTRIGGER PEDESTALS AND FASTENING HARDWARE
		A.	Install the following equipment as specified in Section ______.
		B.	Hot dip galvanized permanently attached steel outrigger bases shall be supplied for mounting to pre-installed outrigger pedestals with appropriate stainless steel fastening hardware. Each base is to be fitted with a safe attachment point for securing the worker's safety line. Outrigger bases will be accurately machined to receive the portable outriggers. Shim bases as necessary during installation to steel outrigger pedestals.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.11	PORTABLE OUTRIGGER EQUIPMENT
		A.	Install the following equipment as specified in Section ______.
		B.	Portable Outrigger Sockets; sufficient hot dip galvanized steel outrigger sockets shall be supplied for attachment to outrigger pedestals. Outrigger sockets shall be accurately machined to receive the portable outriggers, complete with rollers / nylon sliders.
		C.	Outrigger horizontal boom shall be extruded aluminum complete with position retaining pins. It shall be designed to engage the portable outrigger socket and manually push out through an access panel (panel by others).
		D.	During movement from position to position the outrigger shall be carried by means of carrying handle.
		E.	Outriggers shall be designed to support a safe working load of 1000 lb (454 kg). Two outriggers working together shall be rated to support a total of 2000 lb (908 kg).
	2.12	EXTERIOR / INTERIOR ROLLING GANTRY / LADDER
		A.	The rolling gantry / ladder system and support wheel frames shall be fabricated of high strength aluminum. Each unit shall be designed for a safe working capacity of 500 pounds (227 kg).
		B.	Handrails 42 inches (1069 mm) in height shall be provided along the sides of each rolling gantry / ladder.
		C.	The deck of the platform shall be non-slip aluminum flooring.
		D.	Provide four support wheel assemblies running on galvanized steel track to support each unit.
		E.	Provide retaining devices to secure units when in storage or at work position.
		F.	Provide with a factory installed 5/16-inch (8 mm) diameter galvanized wire rope safety (static) line at the deck level of the rolling ladder for the attachment of the lanyards from the worker's fall protection equipment. The static line shall be secured to a structural member of the platform's deck at both ends. Connections shall be capable of sustaining a minimum of 5000 pounds (2270 kg) before failure. Rope clips shall not be used.
		G.	Traversing of the rolling ladder: Horizontal Movement; powered friction drive, to traverse track system.
		H.	Traversing of the rolling ladder: Horizontal Movement; manual hand crank, to traverse track system.
	2.13	EXTERIOR / INTERIOR GANTRY / LADDER TRACK SYSTEM AND SUPPORTS
		A.	Provide supports, track system and related work necessary for a complete installation. Indicate compatibility of the total system with the building structure and notify the Architect if incompatibility exists. Give special attention to assure that the attachment to the building imparted to load carrying members is within allowable limits and that no member is overstressed. The loads imposed on the structure shall be submitted to the Architect for review.
		B.	All tracks and track supports shall be fabricated from structural steel shapes.
		C.	All curved tracks shall be smooth continuous radii (not segmented).
		D.	Stops to prevent the wheel carriages from leaving the end of the tracks shall be provided. There shall be provisions for removal and inspection of wheel assemblies during routine maintenance.
		E.	Locate the exterior track system to allow the gantry platform to be safely positioned in working position, at any designated position.
		F.	All hardware, shims, clips, bolts, nuts, washers, etc. shall be stainless steel.
		G.	The track shall be sized to permit pedestal spans of a maximum 10 feet (3 m) center-to-center.
		H.	The track system shall have provisions to accommodate thermal expansion, which will not adversely effect the horizontal movement of the carriage.
	2.14	EXTERIOR / INTERIOR MONORAIL SYSTEM
		A.	Provide supports, monorail track and related work necessary for a complete installation. Indicate compatibility of the total system with the building structure and notify the Architect if incompatibility exists. Give special attention to assure that the attachment to the building imparted to load carrying members is within allowable limits and that no member is overstressed. The loads imposed on the structure shall be submitted to the Architect for review.
		B.	All stresses and deflections shall be limited in accordance with applicable governing codes and regulations. The monorail track used shall be formed steel channel shaped. Finish to be hot dipped galvanized.
		C.	All curved tracks shall be smooth continuous radii (not segmented).
		D.	Monorail track turntables shall be provided with position retainer and manual rotation.
		E.	Stops shall be provided to prevent the trolleys from leaving the end of the tracks. There shall be provisions for removal and inspection of trolleys during routine maintenance.
		F.	The monorail track system shall be located for controlled positioning of the stage platform to allow safe suspension, at any designated position.
		G.	All hardware, shims, clips, bolts, nuts, washers, etc. shall be stainless steel.
		H.	The track shall be sized to permit pedestal spans of a maximum 10 feet (3 m) center-to-center.
		I.	The track system shall have provisions to accommodate thermal expansion, which will not adversely effect the horizontal movement of the carriage.
		J.	The monorail system shall be designed to support a working load of 1150 lb (522 kg) per support trolley.
		K.	Sufficient monorail hangers with bracing and hardware shall be provided for supporting the monorail track. No support shall be dependent on a single fastener. All fasteners shall be fitted with locking devices.
		L.	The trolleys shall be designed to permit smooth, quiet running while supporting the working load. Load bearing wheels and guiding wheels shall be machined to suit the track profile and are to be fitted with sealed bearings. Traversing monorail track shall be accomplished by one of the following:
			1.	Horizontal Movement; powered friction drive, to traverse track system.
			2.	Horizontal Movement; manual pullers, to traverse track system.
			3.	Inclined Movement; portable deflector sheave trolleys, to traverse down an inclined track system.
	2.15	HORIZONTAL LIFELINE SYSTEM
		A.	Post - Pipe Support 4 inches (102 mm) diameter.
		B.	Fabrication - Take measurements on site as required for correct fabrication and installation. Fabricator shall be responsible for errors in fabrication and for correct fit of window washing systems. Fabricate and assemble in shop to greatest extent feasible. Fabricate for delivery sequence, which will expedite erection and minimize field handling.
		C.	Equipment for fall protection system shall include as a minimum:
			1.	Roof Mount; post, minimum height of 6" above roof membrane.
			2.	Wall Mount; post, with base plate.
			3.	Dual stainless steel 5/16 inch (8 mm) diameter wire ropes for which the traveler is attached to travel horizontally.
			4.	Stainless Steel entry/exit anchors.
			5.	Fall arrest traveler when used, permits unhindered horizontal movement by the operator.
			6.	Provide two safety harnesses complete with shock absorbing lanyard for the operator's for attachment to the fall protection system.
	2.16	SAFETY TIEBACK ANCHORS
		A.	Tieback Anchors - "U" Bar 3/4 inch (19 mm) 42 ksi yield strength type 304 stainless steel, Pipe Support 4 inches (102 mm) diameter.
		B.	Fabrication: Take measurements on site as required for correct fabrication and installation. Fabricator shall be responsible for errors in fabrication and for correct fit of window washing systems. Fabricate and assemble in shop to greatest extent feasible. Fabricate for delivery sequence, which will expedite erection and minimize field handling.
			1.	Roof Mount; tieback anchors, minimum height of 6 inches 152 mm) above roof membrane. All anchors shall have a 2-1/2 inches (64 mm) inside diameter stainless steel ring for means of attaching a suspension wire rope or safety lifeline. Roof Mounted Tieback Anchor:
				a.	Tieback Anchor - Weld to Steel.
				b.	Tieback Anchor - Embedded Anchor Bolt.
				c.	Tieback Anchor - Thru Bolt Anchor.
				d.	Tieback Anchor - Hilti type Anchor.
			2.	Wall Mount; tieback anchors, with base plate. All anchors shall have a 2-1/2 inch (64 mm) inside diameter stainless steel ring for means of attaching a suspension wire rope or safety lifeline. Wall Mounted Tieback Anchor:
				a.	Wall Mounted TBA - Embedded Anchor Bolt.
				b.	Wall Mounted TBA - Thru Bolt TBA.
				c.	Wall Mounted TBA - Hilti Type Anchor.
			3.	Flush Roof Mount; tieback anchors, require minimum height of 4 inch (102 mm) roof pavers system. All anchors shall have a 2-1/2 inches (64 mm) inside diameter flame cut ring for means of attaching a suspension wire rope or safety lifeline. Flush Mounted Tieback Anchor:
				a.	Flush TBA - Weld to Steel.
				b.	Flush TBA - Embedded Anchor Bolt.
				c.	Flush TBA - Thru Bolt Anchor.
				d.	Flush TBA - Hilti Type Anchor.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.17	DROP THROUGH RIGGING SLEEVES
		A.	Install the following equipment as specified in Section ______.
		B.	Hot dip galvanized permanently attached steel drop through rigging sleeve shall be supplied for mounting to structure with appropriate stainless steel fastening hardware / cast-in-anchor bolt cage (if required). The rigging sleeve shall be accurately machined to receive the portable dual suspension-rigging bracket. A weatherproof cap and tether line shall be required at all drop through rigging sleeve locations. Shimmed as necessary during installation to steel / cast-in-anchor bolt cage.
		C.	Fabrication - Take measurements on site as required for correct fabrication and installation. Fabricator shall be responsible for errors in fabrication and for correct fit of window washing systems. Fabricate and assemble in shop to greatest extent feasible. Fabricate for delivery sequence, which will expedite erection and minimize field handling.
			1.	Roof Mount: Drop through rigging sleeve, minimum height of 6 inches (152 mm) above roof membrane.
			2.	Wall Mount (Soffit Bent Pipe): Drop through rigging sleeve.
		D.	Portable Dual Suspension-Rigging Bracket: Hot dip galvanized steel-rigging bracket shall be supplied for attachment of suspension wire ropes.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.18	PULL UNDER BRACKETS
		A.	Install the following equipment as specified in Section ______.
		B.	Hot dip galvanized permanently attached pull under brackets shall be supplied for mounting to underside of structure with appropriate stainless steel fastening hardware / cast-in-anchor bolt cage (if required. Shimmed as necessary during installation to steel / cast-in-anchor bolt cage.
		C.	Fabrication: Take measurements on site as required for correct fabrication and installation. Fabricator shall be responsible for errors in fabrication and for correct fit of window washing systems. Fabricate and assemble in shop to greatest extent feasible. Fabricate for delivery sequence, which will expedite erection and minimize field handling.
			1.	Underside of Roof Mount; pull under brackets, used for mid-air transfer of stage platform under a cantilevered section of the structure.
		D.	Portable Dual Suspension Pull Over Device; shall be supplied for use with stage platform.
	2.19	PORTABLE WIND ANEMOMETER
		A.	Permanently installed anemometer (roof powered drum hoist only) wired into control circuit to prohibit use when excessive wind speeds are present. Note: Functions that allow the working platform to return to the roof remain operational.
		B.	Provide a platform mounted wind anemometer and gauge for monitoring the wind velocity during platform use. Reading shall be in miles per hour and operating power shall be from internal turbine or 9-volt dry cell battery.
		C.	Provide equipment manufactured by the following manufacturers, unless other firms can submit a record of experience acceptable to the Architect.
			1.	Davis Instruments Mfg. Co. Inc., Baltimore, Maryland.
			2.	Science Associates Incorporated, Princeton, New Jersey.
			3.	Texas Electronics 1nc., Dallas, Texas.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct requirements are provided.
	2.20	PLATFORM INTERMITTENT STABILIZATION ANCHORS, SUPPLIED ONLY
		A.	Install the following equipment as specified in Section ______.
		B.	Stabilization Anchors Design:
			1.	The intermittent stabilization anchors shall be specially designed to mount to the existing building structure at horizontal intervals equal to the center-to-center distance of the stage platform suspension wire ropes at all required service drop positions. Vertical spacing of the intermittent stabilization anchors shall be 50 ft (15 m) center-to-center maximum or every three floors whichever is less. Provide shop drawings indicating location, loads imposed and structural requirements of the intermittent stabilization system. Stabilization anchors shall be installed on buildings with suspension heights exceeding 130 feet (40 m), with the first anchor being no more then 50 feet (15 m) from the top of the building.
			2.	The intermittent stabilization anchors shall be specially designed to mount to the existing building structure at horizontal intervals equal to the center-to-center distance of the stage platform suspension wire ropes at all required service drop positions. Vertical spacing of the intermittent stabilization anchors shall be 40 feet (12 m) center-to-center maximum or every three floors whichever is less. Provide shop drawings indicating location, loads imposed and structural requirements of the intermittent stabilization system. Stabilization anchors shall be installed on buildings with suspension heights exceeding 75 feet (23 m), with the first anchor being no more then 40 feet (12 m) from the top of the building.
		C.	Stabilization Anchors shall withstand 600 lb (272 kg) ultimate pull in any direction:
			1.	The intermittent stabilization anchor shall be a detent (pin) type
		D.	The intermittent stabilization anchor shall be a 3/4 inch (19 mm) diameter shoulder bolt (button) type. Platform intermittent stabilization lanyards
			1.	Provide tie-in lanyards for intermittent stabilization of each of the platform's suspension ropes complete with stainless steel "Quick Connect" devices for attachment to the building anchors
			2.	Lanyards shall be galvanized aircraft cable, or equal, with a means of adjustment for length
			3.	Lanyards shall be one-piece and stored around the platform fair leads
	2.21	PLATFORM CONTINUOUS STABILIZATION TIE-IN DEVICE
		A.	Provide tie-in guides for continuous stabilization by the stage platform to the building.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project curtain wall or facade Drawings and Specification to assure that correct guide mullions are provided.
		B.	Vertical Guide Mullion Tracks to be supplied and installed as specified in Section ______. Co-ordinate design with the supplier of the guide track to ensure smooth operation of the tie-in guides.
	2.22	COMMUNICATION EQUIPMENT
		A.	Communication equipment will be provided for each operator for use in an emergency. The communication equipment shall be Owner furnished walkie-talkies.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project electrical Drawings and Specification to assure that correct services and locations are provided.
	2.23	POWER REQUIREMENTS
		A.	Provide electric service as specified in Section 16150.
		B.	Roof Carriage: Protected mainline power and weatherproof, twist-lock receptacle to suit Roof Carriage power requirement power outlets based upon 208/220 VAC, 3 Phase, 60 HZ, 30 AMP. Electric power is to be provided at designated outlets, each being capable of providing 30 amperes and 460 volts, 60 HZ, three phase, under full loading of the equipment with not more than 3 percent voltage drop at the outlets, or at a value compatible with the proposed equipment.
		C.	Powered Stage: Protected mainline power and weatherproof, twist-lock receptacle to suit Powered Stage Platform requirement power outlets based upon 230 VAC, 3 Phase, 60 HZ, 30 AMP. Electric power is to be provided at designated outlets, each being capable of providing 30 amperes and 240 volts, 60 HZ, three phase, under full loading of the equipment with not more than 3 percent voltage drop at the outlets, or at a value compatible with the proposed equipment.
			1.	The outlets on each level of the building shall be on separate circuits from each other and all other equipment. They will contain a separate grounding conductor for an equipment ground. Each outlet will be provided with an adjacent stainless steel strain relief anchor for the strain relief attachment on the traveling cables.
			2.	Power at electrical outlets shall be available only while the platform is in use and shall not be available at any other time. The circuits to be capable of being locked in the "OFF" position. The switch shall be conveniently located with respect to the primary operating area of the equipment to allow the operators of the equipment access to the switch.
	** NOTE TO SPECIFIER ** Coordinate the requirements of the following paragraph with the project structural Drawings and Specification to assure that correct tolerances are provided.
	2.24	TRACK TOLERANCES
		A.	If track and/or support pedestals are to be provided as specified in Section 05500, it is imperative that they be installed to the following tolerances and not to structural steel tolerances. Track joints to be level within 1/16 inch (1.6 mm) maximum in any direction. Track joints should not exceed 1/8 inch (3.2 mm) gap. Track system (by elevation) to maintain constant elevation +/- 1/4 inch (6 mm) every 120 inches (3048 mm). The two tracks shall run parallel within a tolerance of +/- 2 inches (51 mm). Track shall support applied loads for all conditions including switches, openings, and joints. Provide track end stops at all track ends. Provide clearance above and below bottom track flange for wheel and lug clearances. All curved tracks shall be smooth continuous radii (not segmented).
	2.25	ACCESSORIES
		A.	Provide the following accessories as required for a complete installation:
			1.	Safety Tieback Anchors for controlled descent and fall protection.
			2.	Horizontal Lifelines complete with support pedestals.
			3.	Powered Modular Stage Platform or Powered Work Cage.
			4.	Portable Wire Rope Raising Device (aid with ground rigging).
			5.	Portable Wind Anemometer.
			6.	Platform Intermittent Stabilization Anchors, supplied only.
			7.	Platform Tie-in Devices, vertical guide track as specified in Section ______.
			8.	Drop through Sleeves with Portable Rigging Device.
			9.	Pull Under Brackets.
	PART 3	EXECUTION
	3.1	EXAMINATION
		A.	Do not begin installation until substrates have been properly prepared.
		B.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
	3.2	PREPARATION
		A.	Clean surfaces thoroughly prior to installation.
		B.	Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
	3.3	INSTALLATION
		A.	Install in accordance with manufacturer's instructions.
		B.	Furnish and install all Facade Maintenance Equipment and components in strict accordance with the approved shop drawings and at such time when construction and finish of adjoining work will permit to avoid delays to the construction process. All equipment shall be secured in place as shown on the approved shop drawings and/or as herein specified by rigid approved methods.
	3.4	FIELD QUALITY CONTROL
		A.	Conduct full live load and operational tests, after completion of the installation. Perform tests under maximum design live loading conditions over the full range of all the building surfaces, in accord with applicable standards.
		B.	At a time mutually agreeable to all parties, allow one full day to conduct operational demonstrations for the Owner and/or the Owner's representative, after completion of the operational tests.
		C.	Repair or replace any components and correct all deficiencies observed as a result of these tests and demonstrations, and retest to assure compliance with this specification and regulatory requirements.
		D.	Approvals: Submit documentation required to obtain the necessary approval for the equipment installation from the governing authority for operation of the facade maintenance system. Conduct field operational tests for personnel from the governing authority (separate from the Owner's demonstrations).
		E.	Provide written certification that all components have been successfully operated, and will perform in accordance with the intent of this design.
	3.5	INSTRUCTIONS
		A.	Instruct the Owner's Representatives and selected User Personnel in the proper usage of the equipment. Representative of the manufacturer shall, at time as selected by the Owner, spend one man-day as needed at the building furnishing this instruction.
	3.6	PROTECTION
		A.	Protect installed products until completion of project.
		B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION