14.__ VERTICAL RECIPROCATING CONVEYOR
PART 1 - GENERAL
SUMMARY
Scope: This work shall consist of furnishing and installing a vertical reciprocating conveyor in accordance with the details shown on the plans and these special provisions.
Vertical reciprocating conveyor shall include floor and landing enclosures, safety screens, gates, interlocks, controls and such other appurtenances that are required for the proper installation and operation of the vertical reciprocating conveyor.
SUBMITTALS
Product Data:
Manufacturer's descriptive data, catalog cuts, and installation instructions shall be submitted for approval.
Manufacturer's data shall be submitted for the following:
Vertical reciprocating conveyor including, but not limited to floor and landing enclosures, safety screens, gates, interlocks, hydraulic cylinder, power unit, controls, piping and hydraulic schematic.
CLOSEOUT SUBMITTALS
Operation and Maintenance Manuals: Prior to the completion of the contract, 3 identified copies of the operation and maintenance manual with parts list for the equipment identified herein shall be delivered to the Engineer at the jobsite. The instructions and parts list shall be in a bound manual form and shall be complete and adequate for the equipment installed. Inadequate or incomplete material shall be returned for correction. The Contractor shall resubmit adequate and complete manuals at no expense to the State.
QUALITY ASSURANCE
Codes and Standards: All work, including equipment, materials and installation, shall conform to the CBC; the California Code of Regulations, Title 8, Chapter 4, Division of Industrial Safety (DIS); and the American National Standards (ANSI) Standard B20.1. WARRANTY
Warranties and Guaranties: Manufacturer's warranties and guarantees for materials or equipment used in the work shall be delivered to the Engineer at the jobsite prior to acceptance of the contract.
PART 2 - PRODUCTS
MANUFACTURER'S
Available Manufacturers: Subject to compliance with requirements, vertical reciprocating conveyors shall be Langley Mfg. Division, Model ______; Southworth Products Corp., Model ______; or equal.
MANUFACTURED UNITS
The Contractor shall provide the manufacturers standard preengineered vertical reciprocating conveyor which shall comply with or fulfill the requirements in these special provisions.
Vertical Reciprocating Conveyor:
Vertical reciprocating conveyor shall be rated for ______pounds lifting capacity at a minimum speed of ____ feet per minute, with a height of travel of ____ feet. The lower frame shall be designed for bolting directly to the floor slab and not require a pit. The carrier platform shall be ____" x ____", cantilever type, diamond plate or other non-skid surface, with removable pipe on the two sides adjacent to the mast and snap chain on side opposite the mast; guide rollers with sealed bearings.
The conveyor shall be electric/hydraulic drive with single acting hydraulic cylinder, direct coupled positive displacement pump and motor, high capacity reservoir with filter/breather and suction filter, manual bypass valve high pressure piping, valves and attenuators. Cylinder shall have replaceable seals, chromed rods and shall be rebuildable without removing cylinder.
Conveyor control shall include two 3-button, 24-volt pushbutton control stations, electromechanical interlock control on enclosure gates and limit switches. Pushbutton control buttons shall include "Up," "Down," and "Emergency Stop."
ACCESSORIES
Safety Screens: Safety screens shall be expanded metal enclosures with electromechanical interlocked gates at each level conforming to ANSI B20.1 and OSHA 1910.212. Warning Signs: Warning signs shall be sheet steel, not less than 0.030 inch thick (22-gage), with black letters on a white background and a baked enamel coating. Warning sign shall have "NO RIDERS' in 4-inch letters.
PART 3 - EXECUTION
INSTALLATION
Installation shall conform to the manufacturer's recommendations and the requirements of ANSI B20.1 and OSHA 1910.212.
Conveyor shall be securely attached to the concrete floor slab and the landing using powder driven stud type expansion anchors.
Warning signs shall be mounted 5 feet above floor level.
FIELD QUALITY CONTROL
Testing:
Operational testing of the vertical reciprocating conveyor shall be conducted in the presence of the Engineer and shall consist of, but not limited to a minimum of five timed lifts of the conveyor at the rated load. For each test lift, the speed of the lift shall be calculated and shall be not less than the manufacturer's rated speed. Conveyor drive motor current, measured during each test, shall not exceed the motor nameplate current rating.
Additional tests shall be performed to demonstrate the proper operation of safety features including, interlocks, stops, brakes, limit switches and other features as directed by the Engineer.
Manufacturer's Field Service: All equipment shall be assembled, installed and tested in the presence of the conveyor manufacturer's representative.