PROJECT DESCRIPTION
Dry WELL Hoist REPLACEMENT
1FB1093-121620
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 3 AL (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.
Payment for this project will be lump sum, with partial payments made in accordance with a schedule of
values to be submitted with the bid. There is one bid alternate for a laser detection or equivalent system to
prevent the hoist apparatus (with or without a load attached) from impacting electric conduits and panels
installed in a recent plant upgrade project.
Information on the existing hoist and trolley are as follows:
Hoist: Yale, model 651CL, serial no. AR-203058, 3-ton, cables with hook, speed 20fpm
Trolley: Louden, model 3HL, serial no. L17117T
Bidding documents include specifications of the new trolley and hoist (refer to specifications attached to
the IFB document). A mandatory pre-bid conference to allow CONTRACTOR’ s to see the existing hoist
and layout is scheduled for Tuesday, December 15™ at 10AM at the Nashua Wastewater Treatment
Facility, 2 Sawmill Road, Nashua, NH.
The hoist shall include a 3-year (minimum) warranty to be free from defects in workmanship and/or
materials under normal use that covers the body/frame, structural moving parts, bearings, bushings,
pulleys, electronics, and controls. The CONTRACTOR will have 90 days to reach substantial completion
of the project, which assumes a 60-day lead time to order and deliver the hoist and motorized traverse
system, and an additional 30 days to reach final completion including final testing and delivery of all
product materials and warranty information. Liquated damages of $250 per calendar day will be assessed
for delays beyond the established dates for Substantial Completion and Final Completion.
IFB1093-121620 Dry Well Hoist Replacement Page | 7 of 7
229 Main Street ¢ Nashua, New Hampshire 03061 ¢ Phone (603) 589-3330 ¢ Fax (603) 589-3233
