Questions_and_Answers.pdf

Questions and Answers

Q1: Is the contractor required to (D-005):

a) Install the Units spare Bilge switch

b) Install the Units switch and procure a new Bilge switch for a spare

c) Procure and install a new Bilge switch

A1: Install the Units spare Bilge switch. Please refer to 3.2.1 Renew chain locker sump bilge alarm switch. Remove access plate from protective housing surrounding bilge switch. Unwire bilge switch from junction box in lower bow thruster. Remove bilge switch from chain bin sump. Install new bilge alarm switch. Unit has spare Bilge switch on hand.

Q2: Regarding Thordon rep presence, what is the CG’s definition of bearing installation? (D-011)

a) When new staves are installed in the bearing carrier.

b) When the machined bearing halves are installed on the vessel.

A2: (a) When new staves are installed in the bearing carrier. On site – Please refer to

3.3.2.2.2 Following Thordon’s technical guidance (with new staves installed in dovetails and shell halves bolted together) center bore the bearing bore (ID) to the calculated dimension in a suitable machine shop and in accordance with the bearing manufacturer’s recommendations.

(b) When the machined bearing halves are installed on the vessel. Please refer to 3.3.2.2.1 A Thordon Bearing Technical Representative shall be consulted to establish the correct bore dimensions of the bearing depending on ambient temperatures, water swell, and thermal expansion, and liner’s OD (after any cuts have been made).

Q3: Para. 1.1 specifies a quantity of 22 ZHS/23 anodes. The reference dwg. 225B-WLB- 633-002, Rev.A, shows 3 anodes in the designated locations. Request CG clarify the quantity of anodes to be purchased / installed. (D-047)

A3: The drawing specifies for 3 anodes at designated locations, CG wants to add additional anodes in each designated locations totaling the QTY list in table 1.1.

QTY TYPE/DESCRIPTION SIZE LOCATION

8 ZHS/23 12” x 6” x 1 Sea Chest 4-80-1-W 8 ZHS/23 12” x 6” x 1 Sea Chest 4-80-2-W 6 ZHS/23 12” x 6” x 1 Sea Bay 4-80-0-W

Q4: Is it possible for the Cutter to provide digital pictures of the locations designated in Para. 1.1? (D-054)

A4: Unfortunately cutter is unavailable to provide pictures.

Q5: Request CG provide the approximate area of surface prep for bidding purposes, provide the sketch and a general location of the coating failure. (D-069)

A5: 3.2 Partial preservation particulars. Using the drawings referenced in Section 2 (References) for guidance; Coast Guard Drawing 225B WLB 601-002, Rev G, Booklet of General Drawings

Definition of superstructure. For the purposes of this item, superstructure surfaces are defined as vertical and horizontal surfaces from the main deck level up, excluding decks, as shown in sketch provided below. These surfaces include but are not limited to the following: all handrails and stanchions, including those on forecastle and fantail;

bulkheads, doors, underside of overhangs and overheads, inboard surfaces of the bulwark, ladders, piping, stuffing tubes, structural tees, angles, standoffs, brackets and gussets. The six-inch dado where the superstructure joins the deck is not included in the definition of superstructure; it is normally preserved with the deck surfaces.

Prepare and coat up to33 % (Partial) of total square feet of superstructure area, as designated by the Coast Guard Inspector.

Q6: Request CG clarify the following discrepancies (D-070):

a) Will a CR be issued to compensate KTR for the fabrication of missing GFP doors?

b) The list of GFP in para. 1.2 does not match the specified RH/LH doors listed in Table I. Is the CG changing the hand orientation of 2 doors?

A6: (A) 3.2.1 However, when GFP doors and scuttles are not provided, the Contractor shall fabricate and install a new door. The door s for HICKORY FY15 DD will be provided. Yes, CR be issued to compensate KTR for the fabrication of missing GFP doors.

(B) The orientation and GFP is accurate.

Q7: Paragraphs 1.1 and 4.1 each specify a different number of shots per chain assembly. Does the Hickory have 8 shots of chain per side or 10 shots per side? (D-031)

A7: The USCGC WLB 225B’ has a standard of nine shots of chain per PORT& STBD referencing Coast Guard Drawing 225B WLB 581-001 Rev C, Anchor Handling System

Arrangement. CGC HICKORY has stated that they currently have 10 shots of chain per PORT

& STBD.

Q8: Paragraphs 3.2.4.3 requires renewal of the taper pins and the link assemblies. Request CG clarify the meaning of link assembly. KTR understands a D-link assembly to consist of a taper pin, lead plug and the link body. Is it the CG’s intent to renew all detachable links? (D-031)

A8: Please reference parts list in Coast Guard Drawing 225B WLB 581-001 Rev C, Anchor Handling System Arrangement.

Q9: Request CG clarify the discrepancy between the stated intent in paragraph 1.1 and the directions given in paragraph 3.2. Is it possible for the CG to provide the manufacturer’s name and strainer model number? Will the strainer be renewed or overhauled? (D-021)

A9: 3.1.1 CIR. The Contractor shall submit a CIR for the inspections listed in the following paragraph(s): 3.2.2 Cleaning and Inspection.

3.2.2 Cleaning and inspection. After removing the sea strainers, visually inspect in-place the exposed sea valves and piping/hoses located adjacent to the strainers. Completely disassemble and thoroughly clean all strainer components to bright metal without damage or deformation to any component. Visually inspect all disassembled components. Submit a CIR

Submit CIR for recommendation to renew or overhaul.

Q10: Std Spec 8625, sub-paragraph 3.3.10.2 directs KTR to provide a system capable of Maintaining 65degrees F. Request CG provide an estimated BTU requirement to enable KTR in the development of a suitably sized system. (D-052)

A10: 3.2.11.2 Portable A/C in ELEX space & MPCMS locations to maintain temperature below 75 degrees F, when ship A/C units are down. Refer to SFLC Standard Spec 0000. Refer to SFLC Standard Spec 0000.

Reference Drawing Number: 225B-WLB_601_2 ELEX space- approximately 450 sq ft MPCMS- approximately 650 sq ft

Q11: Request CG clarify the discrepancy in paragraphs 1.1.1 and 1.1.2.as relates to para. 3.3. Is it the CG intent to overhaul the Leslie class RVB valve or renew? It should be noted that the reported lead time for a new valve is 20 weeks. (D-061)

A11: Due to the lead time of new valve, USCGC would ask contactor to renew Leslie class RVB valve.

Q12: CG response to previous bidders request for clarification was unclear to this KTR. Dwg 225B-WLB-581-001 Rev.C, does not detail the detachable link assembly. Request further clarification as to the CG’s intent on the paragraph in question. Paragraphs 3.2.4.3 requires renewal of the taper pins and the link assemblies. Is it the CG’s intent to renew all detachable links? (D-031)

A12: 3.2.4.3 Renew all detachable taper pin and link assemblies and associated link plugs.

Please reference part list on Dwg 225B-WLB-581-001 for detachable link assembly.

Q13: Please provide the intended sqft quantity. (D-069)

A13: 3.2 Partial preservation particulars. Using the drawings referenced in Section 2 (References) for guidance; Coast Guard Drawing 225B WLB 601-002, Rev G, Booklet of General Drawings.

Definition of superstructure. For the purposes of this item, superstructure surfaces are defined as vertical and horizontal surfaces from the main deck level up, excluding decks, as shown in sketch provided below. These surfaces include but are not limited to the following: all handrails and stanchions, including those on forecastle and fantail; bulkheads, doors, underside of overhangs and overheads, inboard surfaces of the bulwark, ladders, piping, stuffing tubes, structural tees, angles, standoffs, brackets and gussets. The six-inch dado where the superstructure joins the deck is not included in the definition of superstructure; it is normally preserved with the deck surfaces.

Partial Preserve:

Intent is to paint entire super structure. Partial is used in reference to surface preparation. With partial preserve inspector may require up to, but not exceeding, 33% of total area brought down to SSPC SP 12/NACE No 5, WJ-2/L, the remaining area, about 70%, of the superstructure will be:

"Roughen/abrade all remaining surfaces where existing top coating is intact, by sweep-blasting or using 100-grit paper, to de-gloss the top-coating and produce a suitable surface profile to allow proper adhesion of a new top coating." Then all of superstructure will be painted as pre SFLC Standard Spec 6310 Freeboard/Superstructure/Mast.