DIVISION 6
TECHNICAL SPECIFICATIONS
14320-1
SECTION 14320
HOIST SYSTEMS
PART 1 - GENERAL
1.1 SECTION INCLUDES
A.
B.
Furnish, install, and test electric hoist systems as specified herein.
The hoist systems shall replace the existing and be complete with hoist, trolley and
two tractor drives on the existing bridge crane, and all appurtenances necessary to
complete the installation.
A source of 480 volt, three-phase electrical power will be furnished and installed to
a disconnect switch adjacent to the system. All other conduit and wire as required
for a complete system shall be furnished and installed under this section and in
accordance with NEC. All hoist equipment and associated electrical equipment
shall meet the NEMA rating of the space (NEMA 4X).
12 REFERENCES
Q™mmMopOuD
AISC - American Institute of Steel Construction
AWS - American Welding Society
ASME B30.11 2010 - Monorails and Underhung Cranes
ASME B30.16 - 2007 -Overhead Hoists (Underhung)
HMI - Hoist Manufacturers Institute
MMA - Monorail Manufacturers Association
OSHA - Occupational Safety and Health Administration
1.3 SUBMITTALS
A.
Submit complete shop drawings including but not limited to;
1. Equipment specifications and data sheets identifying all materials used and
methods of fabrication. Weights of all component parts and assembled weight
of units.
2. Complete assembly, layout and installation drawings with clearly marked
dimensions.
3. Interconnection ladder-type wiring diagrams for power and control wiring
required for final connections. Clearly differentiate between portions of
wiring that are factory installed and portions to be field installed.
4. Spare parts recommended by the manufacturer.
5. Special tools necessary to disassemble, service, repair and adjust the hoist
systems.
6. Installation, start-up, operating and maintenance instructions.
7. 3-Year Warrantee/guarantee
8. Shop Drawing shall be stamped by a Professional Engineer in the State of
New Hampshire.
1.4 QUALITY ASSURANCE
A.
B.
Trolley equipment for hoists shall be provided by the hoist manufacturer.
All of the hoisting equipment shall be provided by a single, experienced and
qualified manufacturer who is a member of the Hoist Manufacturers Institute.
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HOIST SYSTEMS
All components and installations shall be the responsibility of one manufacturer.
All electrical equipment shall comply with the applicable requirements for
materials, workmanship, construction and installation of the latest NEMA and
National Electrical Code and Standards.
E. The current issue of Underhung Cranes and Monorail Systems by the MMA and
the Hoist Manufactures Institute shall be included as a part of this section unless
otherwise specified.
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1.5 DELIVERY, STORAGE AND HANDLING
A. Contractor shall be responsible to off load, store and cover hoisting systems and
protect controls and electrical equipment from moisture.
PART 2 - PRODUCTS
2.1 HOIST SCHEDULE
. . . Lift Service
Location Capacity | Hoist | Trolley Height Class Remarks
Influent Dry Well Area 3.0 ton E E 50'-0" H1 SHR, CR
M - Manual; E - Electric; LHR - Low headroom; SHR - Standard Headroom; XP - Class 1/Division | or
Division 2; CR - Corrosion resistant materials; H1 - Infrequent Use
2.2 SYSTEM REQUIREMENTS
A. All components of all equipment, including hoist and trolley, wire rope or cable,
and pushbutton control pendant, shall be rated to satisfy the requirements of the
NEMA rating designated for the rooms in which the equipment will be used in and
travel through.
B. Electrical Hoists with integral trolley
1. Service Classification - H1 (infrequent use)
2. Hazard Control - Motors and trolleys required to be explosion proof shall be
as indicated in the Hoist Schedule.
3. Hoist - Standard or Low Headroom, Electric, Cable Type, Lug or Hook
Mounted, Spark Resistant as indicated in Schedule.
a. Lift Capacity - As indicated in the Schedule
b. Lift - As indicated in the Schedule
c. Lift speed: Single speed, 10 feet per minute minimum.
d. Totally enclosed; reversible, 480 volt, 3 phase, 60 cycle, 2 HP maximum
motor.
4. Trolley - Dual Wheel, Motor Driven or Dual Wheel Geared Trolley
a. Travel Speed - Single speed, 25 feet per minute minimum.
b. Trolley drive; reversible 480 volt, 3 phase, 60 cycle, 1/2 HP motor
maximum.
Trolley shall be 4-wheel type with side extensions beyond the wheel
flange to provide bumper.
c. Maximum chain pull to move rated load — 14 pounds.
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HOIST SYSTEMS
2.3 MANUFACTURERS
A.
B.
Electric Hoist with Integral Trolley
1. ACCO Material Handling Solutions, York, PA
2. Or equivalent
Bridge Crane Tractor Drives
1. ACCO Material Handling Solutions, York, PA
2. Or equivalent
2.4 TROLLEYS
A. Trolleys shall be manufactured with heavy section rolled steel side frames.
B. Wheels shall be induction hardened to a minimum of 425 Brinnel. Bearings shall
be double row, combination radial and thrust, anti-friction precision type. They
shall be prelubricated and sealed and have a minimum B-10 bearing life of 5,000
hours.
C. Trolleys shall fit on existing Monorail Track
D. Trolley wheel gears and pinions shall have machined cut geared teeth. Spacer
washers shall be provided for trolley adjustments to various beam sizes.
E. Trolleys shall be provided with rubber bumpers capable of stopping a trolley at an
average rate of deceleration not to exceed 4.7 ft/s/s when traveling in either
direction at one-third of the rated load speed.
F. Drive motors for trolleys shall be totally enclosed non-ventilated (TENV).
2.5 HOISTS
A. Hoists shall have safety-type lug mounted connection.
B. Hoists shall have full blocks with safety latch swivel hook. Hooks shall be bronze
or high bronze alloy in Explosion Proof areas.
C. Wire rope hoist shall meet the requirements of ASME B30.16 “Overhead Hoists”.
Hoist shall be heavy duty meeting H4 Service classification as defined in
ANSI/ASME HST-4M “Performance Standard for Overhead Electric Wire Rope
Hoists”. Electric wire rope hoists shall meet the following requirements.
1. Frame shall be fabricated from rolled steel to form a one-piece weldment. All
ferrous surfaces shall have a factory applied epoxy coating.
2. Gear case is to be machined aluminum alloy casting with sealed construction
allowing the gears and load brake to operate in a bath of oil.
3. Bearings shall be high quality anti-friction type of either needle or ball design
and used throughout the hoist. Bearings, not considered lifetime lubricated by
the manufacturer, should be provided with a means for lubrication.
4. __ Brakes: Hoist shall have two types of brakes: One DC electrical multiple disc
motor brake spring set electrically released, and one self-adjusting Weston
type mechanical load brake located in the gear case. Either brake shall have
the capability of holding rated load in the event of failure of either brake
system.
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10.
11.
12.
13.
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HOIST SYSTEMS
Overload device shall be provided to prevent lifting excessive overloads. This
load-limiting device shall be preset at the factory to disengage the hoist motor
from the gearing in event of excessive overload condition. Overload device is
to be located between the motor and load brake, so that the load brake will
hold the load in event of overload device failure.
Motors shall be of high starting torque type designed specifically for hoist
duty service with permanently lubricated ball bearings, rated for 30-minute
duty cycle. The motor enclosure is to be totally enclosed non-ventilated,
TENV. Motor insulation shall be class F Minimum. Motor is to have
automatic reset temperature actuated switch (TAS) in motor windings to
provide motor running over current protection.
Gearing shall be a combination of spur and/or helical, precision cut and heat
treated to ensure quiet, efficient operation. Gears shall be totally enclosed and
run in a bath of oil to provide maximum lubrication. Gears are either splined
or keyed to shafts.
Deep grooved, large diameter rope drum that helps prevent overwrap of cable
for longer rope life.
The diameter of the rope drum shall not be less than 18 times the diameter of
hoisting cable, running sheaves not be less than 16 times and idler sheave not
less than 12 times the diameter. Hoisting cable shall be stainless steel.
Limit Switch: An upper block operated control circuit limit switch shall be
provided that shuts off the hoist motor when the load hook reaches its highest
position.
Controls to be centralized and designed per NEC (National Electric Code)
standards housed in a panel with a hinged door. The controls are to be
provided with a step-down transformer within the panel that provides 120
volts power to the control circuits. Control circuit voltage to the push button
station shall not exceed 120 volts. In addition, the panel shall be UL Listed.
Pushbutton station shall be of molded contour grip type and supported from
hoist by strain relief cable to avoid damage from pull on the control wires.
The enclosure is to be NEMA 4X watertight. Controls pendant shall be 120
volt AC, supported by a strain cable. Pendant shall hang to a point 3' - 6"
above the operating floor, elevation as shown on the drawings.
All controls, including power transformer, shall be housed in NEMA-4X
enclosure mounted in an easily accessible location on the hoist. Controls shall
include trolley travel, tractor travel and hoist raising and lowering. Limit
switches shall be provided to prevent over travel of the hook in either
direction. Motors shall be fully enclosed 30-minute duty cycle motors in a
NEMA frame rated for 480 volts, 3-phase, 60 Hz power supply.
2.6 ELECTRIFICATION
Electrification other than cable reel shall be insulated (enclosed) conductor bars
mounted on monorail track. The enclosed conductor system shall be supplied
compete with all necessary support brackets, supports insulators, power feeds,
splice assemblies and closures, and transfer insulators.
A.
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Cable reel electrification shall be provided using cable sized for the hoist and
designed for use on a cable reel (to prevent twisting under tension). The reel shall
be located to allow smooth operation of the hoist and be supplied with all brackets,
swivels, and connectors to provide complete installation.
Power shall be provided to the hoist via a flat cable festoon system. The festoon
system shall be supported from the I-beam and shall include cross-arm supports,
track hanger clamps, festoon track, track joint assemblies, tow trolley, intermediate
trolleys, end clamp, saddle assemblies, end caps, end stop, flat cable and flat cable
connectors. Festoon support components shall be manufactured of stainless steel.
Power to festoon system shall be provided via a NEMA-4X stainless steel junction
box mounted on the support column at the start of the festoon system and a
NEMA-4X lockable stainless steel hoist control station. The hoist control station
shall include a heavy duty 30A-3P disconnect switch.
2.7 ELECTRIC CONTROLS
A. Provide with an 8 push-button control for hoist, trolley and tractor drives. Cable
for pushbuttons shall be long enough to reach within three feet six inches (3'-6") of
the floor.
2.8 RATED LOAD
A. Each hoist shall be marked with its rated load. These markings shall be clearly
legible from the loading position.
B. Both sides of the each monorail track and/or I-beam shall be marked with its rated
load. These markings shall be clearly legible from the floor below.
2.9 SURFACE PREPARATION AND SHOP COATING
A. Provide surface preparation and shop coatings as indicated below:
SURFACEATEM | ppep aniston PRIMER INTERMEDIATE FINISH
Tnemec Series Tnemec Series Tnhemec Series
N69 Tneme- N69 Tneme- N69 Tneme-
Enclosed Ferrous Metal | \ssciurers | at3tosmils | atdtosmis | at3to Sail
Piping and Equipment Specifications OR OR OR
sw Macropoxy SW Macropoxy SW Macropoxy
646 atStoGmils | 646 at 3 to 6 mils 646 at 3 to 6 mils
2.10 CRANE SENTRY ZONE MANAGER (BID ITEM 2)
A. No-Fly zone manager for the overhead crane shall restrict bridge and trolley
movement around areas of electrical and HVAC panels in which the hoist is not
permitted to travel.
B. The system shall consist of a control module, long range laser distance sensors that
are visible CLII eye safe, and related brackets and quick connect cables.
C. The control module shall be sealed from dust and splashing water ingress and
include a clear cover over the main control panel.
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The laser sensors shall be environmentally rated to IP65 for industrial use in
process facilities, along with a +60deg C upper operating temp limit.
The standard system shall be capable of being configured to monitor restricted
zones around process piping and other machinery using a pair of laser distance
sensors monitoring the position of the bridge and trolley throughout the crane
runway and span. The position of the bridge and trolley relative to the fixed
structure is always known.
The system shall be capable of monitoring a runway up to 1640 ft / 500 m when
equipped with a special orange reflective target plate; or at closer range under 200
ft., a natural target may be acceptable.
Each no-fly zone shall be configured by teaching 2 diagonal corners. Stop and
slow buffers can be adjusted via on-screen parameters.
The no-fly zone system interface to a crane drive of contactor type via built in relay
contacts to disable bridge and trolley functions in the appropriate directions.
Crane Sentry Zone Manager shall be from the Crane Sentry product line with
Laser-View Technologies (manufacturer); or equal.
PART 3 - EXECUTION
3.1
3.2
3.3
3.4
INSTALLATION
A.
The Contractor shall verify all dimensions and clearances in the field prior to
erection and shall be responsible for the proper fitting and operation of the
equipment.
B. Install in strict accordance with the manufacturer’s instructions. Installation shall
include furnishing any required oil and grease in accordance with the
manufacturer's instructions.
USE DURING CONSTRUCTION
A. At no time during the construction period shall the monorail, I-beam, hoist and
trolley be used by the Contractor for construction purposes. The hoist/trolley
manufacturer shall render the equipment inoperable until final testing, checkout
and startup.
START UP AND TESTING
A. The monorail, trolley and hoist shall be tested at the rated load by the Contractor to
demonstrate the ability to lift and continuously transport the load throughout the
entire length of the runway.
B. Contractor shall provide necessary weights, slings, etc., necessary for conducting
the test. Weights shall be calibrated.
CLEANING
A. Contractor shall thoroughly clean all installed materials and equipment and touch
up factory finish as required.
END OF SECTION
Dry Well Hoist Replacement
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STANDARD FORM OF AGREEMENT
BETWEEN OWNER AND CONTRACTOR
This agreement is made:
BETWEEN the OWNER: City of Nashua, New Hampshire
229 Main Street
Nashua, NH 03060-2019
And the CONTRACTOR: Mass Crane and Hoist Service
500 Potash Hill Road — Unit 1
Tyngsborough, MA 01879
and its successors, transferees and assignees
(together “CONTRACTOR?” )
For the following Project: | Dry Well Hoist Replacement
IFB1093-122920
ARTICLE 1 —- THE CONTRACT DOCUMENTS
The CONTRACTOR shall complete the work described in the Contract Documents for this
project. The documents consist of:
1.
SANAMNFEYN
9.
This Agreement signed by the OWNER and CONTRACTOR, including the General
Terms and Conditions;
Technical Specifications;
Schedule of Values submitted December 29, 2020;
Payment and Performance Bonds;
Insurance Certificate;
Notice of Award;
Notice to Proceed;
Written change orders for minor changes in the Work issued after execution of this
Agreement; and
Fully Executed OWNER Purchase Order
The Contract represents the entire and integrated agreement between the parties and supersedes
prior negotiations, proposals, representations or agreements, either written or oral. Any other
documents which are not listed in this Article are not part of the Contract.
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In the event of a conflict between the terms of the Proposal and the terms of this Agreement, a
written change order and/or fully executed City of Nashua Purchase Order, the terms of this
Agreement, the written change order or the fully executed City of Nashua Purchase Order shall
control over the terms of the Proposal.
ARTICLE 2— WORK TO BE PERFORMED
Except as otherwise provided in this contract, CONTRACTOR shall furnish all services,
equipment, and materials and shall perform all operations necessary and required to carry out and
perform in accordance with the terms and conditions of the contract the work described.
DESCRIPTION OF WORK:
CONTRACTOR shall furnish and install one 3-ton hoist that can traverse laterally and
longitudinally along the existing rail track in the dry well of the headworks of the main control
building. The existing hoist is a Yale 3-ton model 651CL (serial number AR-203058) with a
Louden motor model 3AL (serial no. L17111TT) for traverse bridging across the dry well. The
existing hoist shall be replaced with the same unit or equal, but with the added capability to
traverse longitudinally. The CONTRACTOR shall determine how to install a track and motor
to provide motorized traverse movement of the hoist. Add Alternate- 1 work (to provide laser
system to stop hoist from reaching electrical panels) to be included in final contract if awarded.
ARTICLE 3 — PERIOD OF PERFORMANCE
Project will begin once a written “Notice to Proceed” is issued.
The CONTRACTOR will have 90 calendar days from the date of issuance of the Notice to
Proceed to reach Substantial Completion of the project, which assumes a 60 calendar day lead
time to order and deliver the hoist and motorized traverse system, and an additional 30 calendar
day to reach Final Completion including final testing and delivery of all product materials and
warranty information.
Liquated damages of TWO HUNDRED AND FIFTY dollars ($250.00) per_calendar day will be
assessed for delays beyond the established dates for substantial completion and final completion.
ARTICLE 4— CONTRACT SUM
Subject to additions and deductions by Change Order, the OWNER shall pay CONTRACTOR,
in accordance with the Contract Documents, the Contract Sum of:
FORTY-SEVEN THOUSAND TWO HUNDRED EIGHTY and 00/100 DOLLARS
($ 47,280.00)
The Contract Sum shall include all items and services necessary for the proper execution and
completion of the Work.
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ARTICLE 5 — INSURANCE AND INDEMNIFICATION
CONTRACTOR shall carry and maintain in effect during the performance of services under this
contract:
> General liability insurance in the amount of $1,000,000 per occurrence; $2,000,000
aggregate;
>» Motor Vehicle Liability: $1,000,000 Combined Single Limit;*Coverage must include all
owned, non-owned and hired vehicles; and
>» Workers’ Compensation Coverage in compliance with the State of NH Statutes,
$100,000/$500,000/$100,000.
The parties agree that CONTRACTOR shall have the status of and shall perform all work under
this contract as an independent CONTRACTOR, maintaining control over all its consultants, sub
consultants, or subcontractor’s. The only contractual relationship created by this contract is
between the OWNER and CONTRACTOR, and nothing in this contract shall create any
contractual relationship between the OWNER and CONTRACTOR’s consultants, sub
consultants, or subcontractor’s. The parties also agree that CONTRACTOR is not an OWNER
employee and that there shall be no:
1. Withholding of income taxes by the OWNER:
. Industrial insurance coverage provided by the OWNER;
3. Participation in group insurance plans which may be available to employees of the
OWNER;
4. Participation or contributions by either the independent CONTRACTOR or the OWNER
to the public employee’s retirement system;
Accumulation of vacation leave or sick leave provided by the OWNER;
6. Unemployment compensation coverage provided by the OWNER.
WN
CONTRACTOR will provide the OWNER with certificates of insurance for coverage as listed
below and endorsements affecting coverage required by the contract within ten calendar days after
the OWNER issues the notice of award. The OWNER requires thirty days written notice of
cancellation or material change in coverage. The certificates and endorsements for each insurance
policy must be signed by a person authorized by the insurer and who is licensed by the State of
New Hampshire. General Liability and Auto Liability policies must name the OWNER as an
additional insured and reflect on the certificate of insurance. CONTRACTOR is responsible for
filing updated certificates of insurance with the OWNER's Risk Management Department during
the life of the contract.
> All deductibles and self-insured retentions shall be fully disclosed in the certificate(s) of
insurance.
>» The specified insurance requirements do not relieve CONTRACTOR of its
responsibilities or limit the amount of its liability to the OWNER or other persons, and
CONTRACTOR is encouraged to purchase such additional insurance, as it deems
necessary.
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