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CHANGE ORDER
Summary

CHANGE IN CONTRACT PRICE

Original Contract Price:

CHANGE IN CONTRACT TIMES

Original Contract Times:

Substantial Completion:

Ready for Final Payment:

Net Changes from previously approved Change Orders

Net Changes from previously approved Change Orders

Substantial Completion:

Ready for Final Payment:

Contract Price prior to this Change Order:

Contract Times prior to this Change Order:

Substantial Completion:

Ready for Final Payment:

Increase (Decrease) of this Change Order:

Increase (Decrease) of this Change Order:

Substantial Completion:

Ready for Final Payment:

Contract Price with all approved Change Orders:

Contract Times with all approved Change Orders:

Substantial Completion:

° Ready for Final Payment:
RECOMMENDED BY: ACCEPTED BY: ACCEPTED BY:
By: By: By:
Engineer (Authorized Signature) Owner (Authorized Signature) Contractor (Authorized Signature)
Title: Title: Title:
Date: Date: Date:

Change Order No.
IFB1093-122920 2 of 2
Dry Well Hoist Replacement

CERTIFICATE OF SUBSTANTIAL COMPLETION

PROJECT: Dry Well Hoist Replacement
OWNER’S CONTRACT NO: IFB1093-122920

DATE OF ISSUANCE:

OWNER: City of Nashua, NH

OWNER’ s Purchase Order NO.:

CONTRACTOR: Mass Crane and Hoist Service

The Work to which this Certificate applies has been inspected by authorized representative of OWNER,
CONTRACTOR, and ENGINEER, and that Work is hereby declared to be substantially complete in
accordance with the Contract Documents on

(DATE OF SUBSTANTIAL COMPLETION)

A Tentative list of items to be completed or corrected is attached hereto. This list may not be all-
inclusive, and the failure to include an item in it does not alter the responsibility of CONTRACTOR to
complete all the Work in accordance with the Contract Documents. The items in the tentative list shall
be completed or corrected by CONTRACTOR within days of the above date of
Substantial Completion.

This certificate does not constitute an acceptance of Work not in accordance with the Contract
Documents nor is it a release of CONTRACTOR’s obligation to complete the Work in accordance with
the Contract Documents.

EXECUTED BY DPW ENGINEER: ACCEPTS THIS CERTIFICATE OF SUBSTANTIAL ACCEPTS THIS CERTIFICATE OF SUBSTANTIAL
COMPLETION: COMPLETION:
By: By: By:
(Authorized signature) Owner Representative Contractor (Authorized Signature)
Title: Title: Title:
Date: Date: Date:

IFB1093-122920
Dry Well Hoist Replacement CERTIFICATE OF
SUBSTANTIAL COMPLETION

Board of Aldermen — 9/12/17 Page 17

and address. In Ward 9, there are a total of 17 signers. In Ward 8, there are a total of 14 signers. In Ward 7,
there are a total of 12 signers. In Ward 6 there are a total of 12 signers. In Ward 5, there are a total of 15
signers. In Ward 4, there are a total of 28 signers. In Ward 3, there are a total of 40 signers. In Ward 2, there
are a total of 23 signers and in Ward 1 a total of 25 signers. So we are hopeful that this demonstration of
support will earn the affirmative vote of aldermen who are working to evaluate constituent feedback prior to
making a final decision on the measure. Open this to constituent feedback and a commitment to truly
represent our government and our elected officials our qualities of leadership that are worthy of a great level of
trust from voters. If you’re on the fence on the existentially important investment for our community, | hope that
this effort has earned your support for bringing a modern performing arts center to 201 Main Street. Through
your support for the initiative, you’ll continue to earn the trust of Nashuans who you have been elected to
represent.

You’ve also received a digital copy of these petitions. It is my belief and the belief of Great American
Downtown and | would argue the folks that are in this room that there is a massive groundswell of support for
this project. | hope that you take that into consideration. It is a good and it is a worthy project. It is an
investment and it stands to make all the difference in our downtown community. Thank you so much and
thank you for your time.

Marje Hogan, 67 Cannongate

I’ve been involved in this community since 1993. | was drawn here by the community arts community which is
incredible. When my late husband and | married, we were looking for a place to buy a house and there was no
more perfect place than Nashua. We moved here in 2003 and this is my home. I’d like to ask everyone what’s
the number one industry in New Hampshire? Can anyone answer that question? Where is our piece of the
pie? | have been advocating for the arts since | was involved in City Arts Nashua from its inception in 2004.
We had to go to the State Arts Council and ask them what they funding. What percentage of their money was
going to Nashua and it was nothing.

We are the second largest city in this State and most of the State thinks we’re part of Massachusetts. We are
content to have people come up from Billerica and buy their groceries at Market Basket on Saturdays and
that’s all we need as far as tourism goes. What are we going to do to stand up for ourselves and do something
to draw people from outside of Nashua to do stuff? The people who live here already invest in this community
and they do so much. This is an amazing place. We need to give them an opportunity to get here and spend
their money here because it’s worth it. Thank you.

Kellie Carin, 37B Boyd Road, Hudson.

Hi. I’m Kelly Caron and | live in Hudson, New Hampshire. Does that mean | have to sit down? Good. So I’ve
lived in this area for 35 years. | was originally for born in Cedar Rapids, lowa. You know why | don’t go back
there? There is nothing to do. Kelly Carlin, 37B Boyd Road, Hudson, NH. So! would like to first thank the
Mayor for his very supportive comments in support of this project, the Currier Gallery of Art, the Chamber of
Commerce. | enjoy movies on Main Street, dinner on Main Street, dancing on Main Street and | know | have
them to thank. I’ve seen the emergence of downtown also and you have some spectacular business and
restaurant owners that are responsible for that. | followed Michael from Levi Lowell’s in Merrimack when he
opened Michael Timothy’s on Main Street. My favorite restaurant by far. Surf, Stella Blue, Philip Scontsas
who also spoke earlier this evening. Lovely business on Main Street. He’s been there a long time. Love that
place. They’ve done their part and they’ve contributed to this community.

The arts community also does their part every day and I’m a little angry about when somebody says they ought
to step up. They step up every single day. There’s a core group that runs the Greeley Park Art Show of about
7 to 10 people. That’s it. | personally ran the kids art show for over 10 years while my daughter grew up
around this area because that gave her an outlet for her art. | spent hundreds of my own dollars on prizes for
the kids because while artists have a lot of talent, and energy, and enthusiasm, they’re often quite short on
money. So they have to step up in other ways and they do every day. I’d like to see us support this project
because as somebody said when the river rises, we all rise. Your businesses owners have given you a great

CERTIFICATE OF FINAL COMPLETION

PROJECT: Dry Well Hoist Replacement
OWNER’S CONTRACT NO: FB1093-122920

DATE OF ISSUANCE:

OWNER: City of Nashua, NH

OWNER’ s Purchase Order NO.:

CONTRACTOR: Mass Crane and Hoist Service

The Work to which this Certificate applies has been inspected by authorized representative of OWNER,
CONTRACTOR, and ENGINEER, and that Work is hereby declared to be finally complete in
accordance with the Contract Documents on

(DATE OF FINAL COMPLETION)

This certificate does not constitute an acceptance of Work not in accordance with the Contract
Documents nor is it a release of CONTRACTOR’s obligation to complete the Work in accordance with
the Contract Documents. The Warranty for all Work completed expires one year from the date of this
Final Completion.

EXECUTED BY DPW ENGINEER: ACCEPTS THIS CERTIFICATE OF FINAL ACCEPTS THIS CERTIFICATE OF FINAL
COMPLETION: COMPLETION:
By: By: By:
(Authorized signature) (Owner Representative) Contractor (Authorized Signature)
Title: Title: Title:
Date: Date: Date:

IFB1093-122920
Dry Well Hoist Replacement CERTIFICATE OF
FINAL COMPLETION

CONTRACTOR'S FINAL RELEASE AND WAIVER OF LIEN

Project: Dry Well Hoist Replacement
Owner Contractor
Owner:_City of Nashua, New Hampshire Name:__Mass Crane and Hoist Service
Address: 229 Main Street Address: 500 Potash Hill Road — Unit 1
Nashua, New Hampshire 03060 Tyngsborough, _ MA 01879
City State Zip City State Zip
Contract Date:

TO ALL WHOM IT MAY CONCERN:

For good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the
undersigned Contractor hereby waives, discharges, and releases any and all liens, claims, and nights to
liens against the above-mentioned project, and any and all other property owned by or the title to which
is in the name of the above-referenced Owner and against any and all funds of the Owner appropriated
and available for the construction of said project, and any and all warrants drawn upon or issued against
any such funds or monies, which the undersigned Contractor may have or may hereafter acquire or
process as a result of the furnishing of labor, materials, and/or equipment, and the performance of Work
by the Contractor on or in connection with said project, whether under and pursuant to the above-
mentioned contract between the Contractor and the Owner pertaining to said project or otherwise, and
which said liens, claims or rights of lien may arise and exist.

The undersigned further hereby acknowledges that the sum of

DOLLARS
($ )

has been paid to date and that

DOLLARS
($ )

constitutes the entire unpaid retainage balance due the undersigned in connection with said project
whether under said contract or otherwise and that the payment of said sum to the Contractor will
constitute payment in full and will fully satisfy any and all liens, claims, and demands which the
Contractor may have or assert against the Owner in connection with said contract or project.

Dated this day of 20

Contractor
Witness to Signature

By Title

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.

Dry Well Hoist Replacement
IFB1093-122920

14320-2
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.

go

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.

Dry Well Hoist Replacement
IFB1093-122920

14320-3
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.

Dry Well Hoist Replacement
IFB1093-122920

10.

11.

12.

13.

14320-4
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.

Dry Well Hoist Replacement
IFB1093-122920