Questions_and_Answers_2.pdf

Questions and Answers 2

Q1: Manufacturers prepare and ship fabricated door panels with either a “shop” enamel primer or an epoxy primer. Please advise how these doors have been ordered.

A1: Juniper Elbow Company Inc. is the Contractor for these doors. Their standard finish on their doors is zinc and a primer.

Q2: If the government elects to utilize a new shaft will the following actions be the subject of a change order:

• Uncrate new shaft

• Place shaft in lathe and do a complete second inspection (first done on original shaft) as detailed in paragraphs 3.15 - 3.17

• Crate old shaft in shipping container

A2: WI: 7 Propulsion Shafting; Remove, Inspect, and Reinstall. Submit CR if the government elects to utilize a new shaft to cover cost in paragraphs 3.15 - 3.17.

Q3: Paragraph 1.1 - Please clarify what an acceptable flushing agent is.

A3: Any water scale cleaner would be acceptable. It should be approved by EPA and in according to Tech Standard 254 and 256.

Q4: Paragraph 3.3 - Please clarify what pressure to hydrostatic test the piping at.

A4: 1.5 system pressure or 50 psi.

Q5: In paragraph 1.1 it states that the contractor is to flush the heat exchangers. Please clarify if it is your intention to have the heat exchangers flushed. If so, please clarify what the standard is in which they should be flushed.

A5: Heat ex. are covered on the other Spec.

Q6: Paragraph 3.2.1 - This paragraph directs contractor to remove all foreign debris and marine growth from the piping and heat exchangers using clean fresh water.

It has been this sub-contractor’s experience that fresh water will only remove the loose debris, not tightly adhered sea life and growth. This loose debris will be readily flushed away, and continuing to flush the piping will not increase cleanliness.

It should also be noted that the debris will more than likely deposit debris into the heat exchangers. For bidding purposes, please advise the expected duration of the flush using fresh water. If the fresh water rinse does not satisfy the inspection, will additional cleaning be the subject of a constructive change?

A6: The final acceptance of cleaning are rested on the CG Inspectors.

Q7: 3.8 states to "renew all bolting hardware". Please confirm that the contractor may not reuse any hardware, regardless of its condition. In addition, please clarify material specification. Past specifications suggest that the contractor should provide a budget of 10% for defective or missing hardware.

A7: Renew all bolting hardware and validate materials with ship check prior to purchasing any materials.

The Contractor shall verify required valve list against referenced drawings and by ship check prior to purchasing any materials. If the actual required valve list differs from what is listed in this work item, submit a CFR.

3.5.4 Reassembly. Reassemble the valve using new hardware and software (packing, O-rings, gaskets, seal rings, non-metallic seats, pins, washers, inserts, etc.).

Q8: 3.8 states to "renew all bolting hardware". Please confirm that the contractor may not reuse any hardware, regardless of its condition. In addition, please clarify material specification. Past specifications suggest that the contractor should provide a budget of 10% for defective or missing hardware.

A8: Contractor shall renew all bolting hardware.

Q9: Paragraph 1.1 - Please “describe the requirements for the Contractor to clean the Chill Water and Sea Water Systems.” Note that the specification does not address this.

A9: Other Specs in this package are covering these.

Q10: Paragraph 3.4 - Is the contractor to submit a proposal for flushing the system to the COR for review, and upon approval, price the flush?

A10: Price should be submitted in advent; any change should be in the form of Change Orders.

Q11: Paragraph 3.11 - What would the test pressure be, or alternatively, what is the operational pressure?

A11: See others

Q12: The Turret is lumped with the boom assembly for disassembly and inspection. Is this a mistake? Please specify what part of the turret would be disassembled. Other aspects of Table 1 discuss inspection and lubrication of rotating components of the crane/turret assembly.

A12: Do not disassemble turret; need to inspect turret and submit CFR.

Q13: Paragraph 3.4 discusses cleaning the “….Sea Water System as shown on drawings…. and 225B-WLB 256-4”. Work Item 15 describes the job of cleaning the Sea Water Piping System. Please clarify the extents of work item 62. Is it strictly that system associated with the distribution of cooled or heated water for the HVAC system? If not, please establish boundaries.

A13: Price Work Item 15, Sea Water Piping System cleaning independently of Work Item 62, Sea Water Piping System Cleaning.

Q14: Both work items reference drawing s225B-WLB-256-001 and 532-001. Both drawings have a general note that states: “This system shall be cleaned before testing in accordance with section 505 of the ship’s specifications and reference 3.” Reference 3 is MMC FLUSHING PROCEDURES 523-502-2. Please provide reference 3 or describe what the flush would entail.

A14: See Tech Standard 254 and 256, as well as SFLC Std. Spec 0000.

Q15: Photo Request. Work item 15: Sea Water System Piping, Clean and Flush, photo of each of heat exchanger that is to be removed, photo of insulation coverings, photo of pipe connection to motors and heat exchangers and photos of interferences. Work Item 18: Photos of Gaylord hood, galley exhaust and galley supply vents. Work Item 19:

Photos of the laundry exhaust vent ducts. Work Item 20: Photos of each valve and its label plate. Include any interference. Work Item 21: Photos of sea strainer and label plate. Work Item 54: Photos of the current floor including interferences and baseboard moldings. Work Item 57: Photos of the area where the coaming is to be installed.

Include the washing machines to be moved, the floor covering and the existing coaming.

Work Item 58: Photos of the valves and label plates. Work Item 59: Photos of the fat fryer, cook top/griddle and double oven combination units. Work Item 62: Photos of expansion joints requiring replacement and photos of heating and cooling systems showing piping arrangement. Work Item 64: Photos of each heat exchanger. Work Item 66: Photos of commissary hoist motor, manufacturer and model number of motor. Work Item 70: Photo of inside and outside view of each door to document local interferences.

Work Item 77: Photo of general shots of the two berthing areas to provide understanding of local interferences and photos of the 3 + feet of pipe and fittings in each space.

A15: The CGC HICKORY is unavailable at this time to provide pictures requested. We would recommend a site visit to a local 225' for estimate.

A2: WI: 7 Propulsion Shafting; Remove, Inspect, and Reinstall. Submit CR if the government elects to utilize a new shaft to cover cost in paragraphs 3.15 - 3.17.