General Construction Specifications
PART 1 - GENERAL
01 SECTION INCLUDES
A. The Contractor shall furnish and install the bridge crane as described herein and as indicated on the drawings. Complete installation of all components and related electrical work to safety switch. Safety switch described under Division 16, location shown on drawings.
B. The Contractor shall furnish and install jib cranes and hoists as described herein and as shown on the drawings.
C. The Contractor shall furnish and install monorails and hoist as described herein and as shown on the drawings.
02 QUALITY ASSURANCE
A. All hoists, support structure, operators and controls shall meet requirements of HMI-100 published by the Hoist Manufacturer's Institute, and comply with OSHA safety requirements.
B. Bridge crane, jib cranes, hoists, and monorails shall be furnished and installed by a firm specializing in such work and able to demonstrate a minimum of five years of successful installations.
03 SUBMITTALS
A. Submit the following in accordance with Section 01340.
B. Shop drawings indicating:
1. Physical dimensions of and accessories.
2. Dimensional tolerances required of building structure.
3. Connections, attachments, reinforcing; size and locations of loads and reactions on the building structure.
4. Configuration of controls and operators.
B. Manufacturer's Product Data describing materials, finishes, capacity and operating characteristics.
1.02 OPERATION AND MAINTENANCE DATA
A. Submit maintenance data in accordance with Section 01730.
B. Include description of operation and controls, signals, safety features and special or non-standard functions.
C. Include replacement parts list and schematic wiring diagrams of electrical equipment.
PART 2 - PRODUCTS
04 BRIDGE CRANE
A. Acceptable manufacturers:
1. Design and specifications are based on products of Lift-Tech International, Inc./Muskegon, Michigan.
2. Substitutions: Products of the following manufacturers are acceptable only after compliance with the requirements of this section. Rail, trolley and hoists shall be furnished by a single manufacturer as a complete system.
a) Deshazo Crane Company, Inc., Alabaster, Alabama.
b) Harnischfeger, P & H, Milwaukee, Wisconsin.
B. Custom-built indoor service top running single girder crane bridge of welded steel construction.
1. Capacity: 20-Ton.
2. Span: 60'-4".
3. Lift: 66 ft.
4. Trolley: Motor driven.
5. Operation: One-speed, motor driven, 460V.
B. Runway System:
1. Runway Beams: Runway beams, sized to support crane loads shall be provided by the Crane Supplier. Runway beams are to be supported from the building structural system.
2. Runway to be patented track.
3. Runway Electrification: 3-bar safety enclosed type.
C. Operating and Safety Features:
1. Automatic mechanical load break and internal disc motor brake.
2. Automatic Upper Limit Switch: Shuts off power when load hook reaches highest position.
3. Mechanical overload clutch built into the gear train to prevent lifting excessive overloads.
4. Rails shall have safety guards secured to track to prevent trolley from running off the end. Guards shall withstand impact of fully loaded trolley at 120% of full load speed.
5. Pre-assembled and pre-wired electrical components of hoists, trolleys, controls, starters, and electrification systems shall be included with the equipment.
D. Electrical:
1. Electrical components shall be tested, approved, and labeled by UL.
2. Motors shall be designed for hoist service. They shall be drip proof or totally enclosed, and provided with antifriction bearings. Motors shall be rated on not less than 30-minute basis with temperature rise in accordance with NEMA Standards for the class of insulation and enclosure used.
3. Control panels shall contain individual automatic or manual reset thermal overload protection for each motor.
4. Manual restart shall be required after power interruption.
5. Motor starters for drives shall be reversing type, fully magnetic, with both mechanical and electrical interlocks. Starters shall be sized for hoist duty consistent with horsepower requirements of drive and NEMA 4R industrial type enclosures shall be provided.
6. Floor controlled units, unless otherwise specified, shall be controlled from a common pendant pushbutton station attached to the carrier so that the conductor does not carry the weight of the station.
7. Control voltage at pushbutton stations shall be 120V or less.
8. Power shall be brought to electrically operated units by means of semi- enclosed conductors mounted parallel to the rail for the entire length in compliance with Article 610 of NEC. Conductors shall be installed on insulating supports at intervals and spaced for electrical clearance. Conductor bars shall be coupled mechanically and electrically in entire system, and electrification shall be designed so that the current collector wheel or shoe does not lose contact with the conductor bar.
9. Collectors shall be wheel or shoe type. They shall permit normal contact with the conductor bar without causing mechanical strains on the supports or the conductor bar system.
10. All conduit and wire shall be sized in accordance with NEC.
11. Fused safety switch is described under Division 16 as indicated on the drawings. Manufacturer shall provide all electrical work from this point to all electrical components and motors.
2.02 JIB CRANES
A. The jib cranes shall be a Reliable Model 800-CBM as manufactured by Stanspec Corp., Cleveland, Ohio or approved equal. The jib crane shall be heavy duty, rigid underbracing with self-aligning heavy load carrying capacity anti-friction bearing for 360 rotation with pressure grease lubrication. Heavy section structural mast shall be supported top and bottom.
B. The manufacturer shall design the jib cranes for the spans and capacities shown herein. The manufacturer shall make certain that does not exceed space allocation and provide structural loads required by jib cranes on the existing structure.
C. The hoist to be utilized shall be sized to handle the capacities shown herein and shall be supplied with a mechanical overload clutch to prevent lifting excessive overloads. The hoist and jib cranes shall be furnished by the same manufacturer as a complete system.
D. One Ton Jib Crane: (For Removal of Drywell Sump Pumps)
1. Capacity: 1 ton
2. Lift: 15'
3. Span: 10'
4. Hoist: Yale Load King LH hook type hand hoist Model
No. 824-05100 or approved equal.
5. Operation: Manual
6. Number Provided: One (1)
7. Jib Crane Type: Mast type, supported top and bottom.
8. Location: Dry well sump pump, floor level
E. Fifteen (15) Ton Jib Crane: (For Removal of Wastewater Pumps)
1. Capacity: 15 tons
2. Lift: 15'
3. Span: 9' +/-
4. Hoist: Electric operation, 10 ton capacity, single speed
5. Number Provided: Four (4) jib cranes and hoists
6. Jib Crane Type: Mast type, supported at top and bottom
7. Location: Wastewater pump level, basement
8. Control Panel: NEMA 4X, wall mounted, 480 volt/3 Phase/60 Hertz
F. Power shall be brought to electrically operated units by means of conductors coiled along beam. Control voltage at push button stations shall be 120 volt. Floor controlled units, unless otherwise specified, shall be controlled from a common pendant push button station.
2.03 MONORAIL (For Removal of Grinders)
A. The hoist shall be sized to handle the capacity as shown herein. The hoist trolley shall be compatible for operation on the monorail as shown on the drawings.
1. Capacity: 2 tons
2. Lift: 15'
3. Hoist Operation: Manual
4. Hoist: Yale Load King LH hook type hand hoist or approved equal
5. Number Provided: One (1)
6. Location: Bare screening area
PART 3 - EXECUTION
05 INSPECTION
A. Verify that building structure is within tolerances and ready to receive crane rail work.
B. Verify that electrical provisions are complete and correct.
C. Beginning work indicates acceptance of existing conditions.
06 INSTALLATION
A. Install in accordance with approved shop drawings and manufacturer's instructions.
B. Load carrying components shall be secured rigid, plumb and level.
C. Install conduit and wire in compliance with NEC guidelines from disconnect provided.
07 TEST AND ADJUST
A. When installation is complete, load test each hoist to 100% rated load capacity in the presence of the Installer, General Contractor and Engineer.
B. Adjust as necessary for smooth operation.
END OF SECTION
