Post on 12-Nov-2021
FIREBOAT GUARDIAN
REPAIRS
2015-2016
TABLE OF CONTENTS
ITEM 1 Drydocking and Services Page 1
ITEM 2 Hull Inspection and Thickness Measurements Page 2
ITEM 3 Hull and Sea Chest Zincs Page 3
ITEM 4 Miscellaneous Work on Propellers, Page 4
Shafts and Rudders
ITEM 5 Replacement Inserts Page 5
ITEM 6 Clad Welding Page 6
ITEM 7 Hull Cleaning and Recoating Page 7
ITEM 8 Sea Chest Cleaning and Recoating Page 8
ITEM 9 Sea Valve Overhaul Page 10
ITEM 10 Lettering, Markings and Other Insignia Page 11
ITEM 11 Recoating of House Page 12
ITEM 12 Main Deck Repairs Page 13
ITEM 13 Silencer Replacement Page 16
ITEM 14 Pump Engine Cylinder Heads Page 19
ITEM 15 Galley Portholes Page 20
ITEM 16 Expansion Tanks Page 21
ITEM 17 Flybridge Page 22
ITEM 18 Boat Deck Railing Page 25
ITEM 19 Jasons Cradle Box Page 26
ITEM 20 Port and Starboard Bulwark Modifications Page 28
ITEM 21 Stainless Steel Grab Rails Page 31
ITEM 22 Fireloop Repairs Page 32
ITEM 23 Cap Rail Repair Page 34
ITEM 24 Rudder Post Carrier Barriers Page 35
ITEM 25 Aft Fuel Tank Suction Valves Page 37
ITEM 26 Engine Room Supply Blower Page 38
ITEM 27 Hydraulic Crane Page 40
1
ITEM 1:
DRYDOCKING AND SERVICES
SCOPE: Provide labor and materials to safely berth, haul out, shift and undock vessel necessary to carry out all repairs in this contract.
Provide additional shoring as needed after haul out and during block shifting topreclude any damage to hull or paint
Provide gangway, 208 VAC, 3PH, 4 wire 60 amp shore power, temporary 1 ½”fire hose with 50 PSI minimum fresh water pressure, security and lighting
Provide independent certified AWS welder to inspect and certify all structural andfluid containment welds made by contractor. Provide weld report for all inserts,clad welds, and pipe welds to Engineer
Immediately after hauling out, wash down entire under water body with highpressure water and biodegradable cleaner including wheels and rudders. Handscrape all areas of heaving fouling
Remove sea chest screens and clean sea chest and screens with high pressurewater blast and biodegradable cleaner. Hand scrape all areas of heavy fouling
Cover all glass surfaces to prevent damage from blasting, painting and hot work
Take necessary measures to prevent ingress of abrasive materials and dust fromentering interior spaces of vessel
Take necessary measures to prevent ingress of abrasive materials and dust fromentering interior spaces of vessel
Cover all engines with tarps while not being worked on
2
ITEM 2:
HULL INSPECTION AND THICKNESS MEASUREMENTS
SCOPE: Visual inspection of existing condition of underwater body wheels and rudders. Hull will be measured by non-destructive method.
Shipyard representative and Engineer will make complete visual inspection ofhull, rudders and wheels and note any damage or corrosion
With an approved method, contractor shall measure hull in 800 locations asdetermined by Engineer and record readings, shown in thousands of an inch. Sixcopies of report showing location and reading shall be submitted to Engineer
3
ITEM 3:
HULL AND SEA CHEST ZINCS
SCOPE: Provide labor and materials to remove and replace hull and sea chest zincs.
Contractor and Engineer will survey all hull, sea chest zincs. Engineer willdetermine which zincs to replace
All zincs to be replaced shall be of same size and type as original zincs
All zincs will be cut off with torch and new zincs shall be welded to remainingstraps
All zincs shall be protected from coatings
SEA CHEST ZINCS
4
ITEM 4:
MISCELLANEOUS WORK ON PROPELLERS, SHAFTS AND RUDDERS
SCOPE: Provide labor and materials to clean propellers, take shaft and rudder readings and repack inboard packing glands.
Propellers shall be cleaned and polished using procedures which cause no damage to same
Take wear down and run out readings of both shafts at all shaft bearings, record results and submit report to Engineer
Take clearance readings of rudder pintle bearing. Record results and submit report to Engineer
Remove old port and stbd inboard packing. Clean glands and followers. Clean gland studs and nuts
Engineer shall inspect glands before being repacked
Repack port and stbd inboard packing glands with Gore packing available from Kraft Industrial Supplies, attn: Gordon Kraft (650) 952-5606
PROPELLER & RUDDER
5
ITEM 5:
REPLACEMENT INSERTS
SCOPE: Repair hull and sea chest by inserting steel plate.
Engineer shall designate areas of hull and sea chest to be repaired by new steel plate insert original thickness and measure same in square feet
Insert area shall be sandblasted to SP-6 at least 6” beyond area to be repaired
Contractor shall have certified welder repair identified areas with new steel as original
Insert welds shall be made 100% by back gouging or grinding
Finish of back side of insert area shall be repaired to original
6
ITEM 6:
CLAD WELDING
SCOPE: Repair hull plate and sea chest by clad welding.
Engineer shall designate areas of hull plating and sea chest to be repaired by clad welding and measure same in square inches
Clad weld areas shall be sandblasted to SP-6 at least 6” beyond area to be repaired
Contractor shall have certified welder repair identified areas with approved welding rod
Finish of back side of clad weld area shall be repaired to original
7
ITEM 7:
HULL CLEANING AND RECOATING
SCOPE: Provide labor and materials to sand sweep entire hull and sandblast to bare metal 5% of hull and recoat hull to original specifications.
After vessel has been power washed, contractor, Ameron representative, and Engineer shall inspect entire under water body for coating conditions found. Contractor shall submit written report of same to Engineer
After thickness measurements, inserts and clad welding are complete hull shall be prepared for coating by sand sweeping undamaged existing coating according to Ameron representative. Inserts and clad welding and an additional 5% of hull shall be sand blasted to SP-6 to satisfaction of Engineer
Bare metal shall be coated with one full coat of 235 black epoxy and one full coat of 235 intermediate epoxy
Sand swept areas shall be recoated with one full coat of 235 intermediate epoxy
Entire hull from keel to water line shall receive two full coats of anti-fouling paint
Hull freeboard from water line to top of bulwark shall receive one full coat of 235 intermediate red and one full coat of Fireboat Red Amershield
Cap rail shall receive one full coat of Amershield Black
Engineer shall inspect completion of each coat before following coat shall be applied
Film thickness, recoating/drying times and temperature requirements of coating manufacturer shall be strictly followed and recorded and submitted to Engineer
8
ITEM 8:
SEA CHEST CLEANING AND RECOATING
SCOPE: Provide labor and materials to sandblast entire sea chest and screens and recoat to original specifications.
After sea chest and screens have been power washed and thickness measurements taken and zinc anodes removed, Engineer shall designate any inserts or clad welding
After any inserting and clad welding is complete, entire sea chest and screens shall be sandblasted to SP-6. Note: close all suction valves to sea chest to prevent grit from entering piping
Bare metal shall be coated with one full coat of 235 black epoxy and one full coat of 235 intermediate epoxy
After two coats of anti-corrosive have been applied replace zinc anodes in sea chest by welding. Repair any damaged paint to original
Protect all zinc anodes from coating and apply two full coats of anti-fouling paint
Screens shall receive same four coatings as sea chest
After final inspection of interior of sea chest by Engineer, reinstall sea chest screens with original type hardware
9
ITEM 8 CONTINUED:
SEA CHEST
SEA CHEST INTERIOR
10
ITEM 9:
SEA VALVE OVERHAUL
SCOPE: Provide labor and materials to overhaul sea valves located in engine room.
Witness mark all valve parts for correct reassembly. Do not mix parts between valves
Five 10” fire pump suction gate valves shall be overhauled by removing bonnets, disassembling same and cleaning all surfaces to Engineer’s satisfaction. Coat interior wetted surface of valve bodies with two full coats of 235 and two full coats of Ameron anti-fouling paint. After Engineer’s reinspection, reassemble valves using appropriate new gasket material and valve packing
Five 4” engine cooling water suction globe valves shall be overhauled by removing bonnets, disassembling same and cleaning all surfaces and lap discs and seats to Engineer’s satisfaction. Coat interior wetted surface of valve bodies with two full coats of 235 and two full coats of Ameron anti-fouling. After Engineer’s reinspection, reassemble valves using appropriate new gasket material and valve packing
One 4” bilge pump sea suction globe valve shall be overhauled as per engine cooling valves
10 INCH GATE VALVE
11
ITEM 10:
LETTERING, MARKINGS AND OTHER INSIGNIA
SCOPE: Provide labor and materials to remove and replace lettering and repaint draft marks.
Letters on port and stbd bulwarks of main deck shall be white, 12” high and 2 ½” thick and shall read:
SAN FRANCISCO FIRE DEPARTMENT
Letters on port and stbd of wheelhouse shall be red, 12” high and 2 ½” thick and shall read:
SFFD
Vessel name on stern shall be white, 10” high and 2” thick and shall read:
GUARDIAN
Hailing Port on stern shall be white, 5” high and 1” thick and shall read:
SAN FRANCISCO
Insignia on port and stbd aft monitor tubs shall be reproduced and replaced
exactly as original
Draft marks on both sides of bow and stern shall be 6” high and hand painted following center punched marks in hull
12
ITEM 11:
RECOATING OF HOUSE
SCOPE: Provide labor and materials recoat house structure from main deck up
Spot repair by needle gun, grinder or sandblasting any areas showing failed coating that cannot be prepared for recoating with sanding only. Allow 25 square feet of this extra prep
Spot prime extra prep areas and other areas of bare metal with two full coats of Amercoat 235
Prep all house surfaces from main deck up using mechanical and/or hand sanding
Wipe all surfaces and coat with one full coat of Amershield to match existing colors
13
ITEM 12:
MAIN DECK REPAIRS
SCOPE: Provide labor and materials to sandblast entire main deck surface and boat desk surface and recoat same with Ameron Non Skid System
Sandblast entire main deck from stem to stern and inside of all bulwarks and cap rail to SP-6
Sandblasting shall include all vertical surfaces up to 6" above deckline, and include bitts, cleats, undersides of firemain flanges, hatch commings, inside and outside of crane base, and engine room access soft patch
Blasted surface shall have a surface profile of 2 1/2" to 3 1/2" mil
Recoat all blasted surfaces with: 1. 4 mil dry thickness coating of Dimetcoat 302H zinc rich epoxy 2. Additional stripe coat of 302H on rough welds, cut outs, behind angles, on waterways 3. 5 mil coating of Amercoat 240 4. Additional stripe coat of 240 on rough welds, cutouts, behind angles, on waterways 5. Tape off areas to receive Non Skid and roll on Non Skid 237M at a rate of 60-65 sq ft/gal
Cutout and insert deck on portside where shore power cable has been removed
Weld small round bar cleat to each bulwark knee for securing small portable fenders as direct by Engineer
Cover all vents, protect all wiring and glass. Prevent grit from entering interior spaces, machinery, monitors and rudder bearings
Film thickness, recoating/drying times and temperature requirements of coating manufacturer shall be strictly followed and recorded and submitted to Engineer
Paint all disturbed areas with Ameron Amercoat 235 and Amershield to match
14
ITEM 12 CONTINUED:
FAILED DECK COATING
OLD SHORE POWER DECK PENETRATION
15
ITEM 12 CONTINUED:
FAILED DECK COATING
16
ITEM 13:
EXHAUST SILENCER REPLACEMENT
SCOPE: Provide labor and materials to remove and replace 5 existing exhaust silencers and replace wasted stack plating
Remove wasted stack cover plating in its entirety
Remove 5 exhaust silencers
While silencers are removed, insulate approximately 100 sq ft of P&S bulkheads in way of CO₂ compartment and Engine Room after ladder trunk with heat insulation suitable for marine application
Silencers to be used are Harco Manufacturing Co. Critical Grade #1858 VRS 8 SP Carbon Steel with High Temp Paint. Contact: Josh Ison (503) 537-0600, Quote # 14056
Reuse existing exhaust piping above existing silencers and add to same as necessary
Fabricate collars, drip caps and centering devices as per drawing
Replace drain lines from top of stack with 316L SS pipe
Remove hinged vent cover on aft side of stack. Fabricate and install fixed drip covers on aft vent and P&S stack doors
Install four 2ft long grab rails on stack as directed by Engineer
Paint all disturbed areas using Ameron 235 and Amershield to match
17
ITEM 13 CONTINUED:
TOP OF SILENCERS
TOP OF STACK
18
ITEM 13 CONTINUED:
HINGED VENT COVER
19
ITEM 14:
PUMP ENGINE CYLINDER HEAD OVERHAUL
SCOPE: Provide labor and materials to remove six Detroit 71 Series cylinder heads from three Detroit 12V-71 engines rebuild and reinstall same on three pump engines
Reason for head overhauls is injector tubes are leaking at o-rings
Use all new gaskets and parts when overhauling and reinstalling heads
Reuse existing injectors
Machinist shall be qualified to work on 71 Series Detroit Diesel
Test run to Engineer's satisfaction upon completion
Engines shall not be opened while sandblasting is taking place on outside of vessel
ONE OF SIX CYLINDER HEADS
20
ITEM 15:
GALLEY PORTHOLES
SCOPE: Provide labor and materials to remove two existing glass portholes from forward bulkhead of galley and insert bulkhead
Roll insert steel of same dimension as existing bulkhead to match. Weld insert from both sides 100% weld
Paint disturbed areas to match
Return old portholes to owner
21
ITEM 16:
PUMP ENGINE EXPANSION TANKS
SCOPE: Provide labor and materials to fabricate and install three expansion tanks for cooling water for three pump engines
New tanks shall be constructed of 316L SS sheetmetal of 11 Gauge thickness
Tanks will be located hanging from overhead of engine room as directed
Tanks will have level gauge, filler neck, pressure cap and mounting for Murphy Level switch, and threaded half couplings
Tanks will be pressure tested with air for leaks
Tanks will be approximately 14"H x 12"W x 5"D
22
ITEM 17:
FLYBRIDGE DECK RAILING WHEELHOUSE OVERHEAD REPAIRING AND RECOATING
SCOPE: Furnish labor and materials to remove and replace existing steel railing and control stand with SS railing and control stand
Remove existing steel railing from top of wheelhouse and replace with 316L SS welded and polished railing of Phoenix design using 1" top rail, 3/4" second and third rail and 3/8 x 1 1/4 flat bar stanchions
Stanchions shall be electrically isolated from and anchored to aluminum flat bar welded to aluminum flybridge deck
Remove existing ladder from boatdeck to flybridge, fabricate and install new ladder of Phoenix design of 316L SS
Remove wasted flybridge control stand complete down to flanges in deck
Fabricate and install new control stand of 316L SS of aft station design. New control stand shall be connected to deck with hose and clamps to transition from SS tube to aluminum tube
Remove steel radar supports and replace with aluminum
Fabricate base for new owner furnished FLIR Camera and install same on flybridge deck as directed by Engineer
When all welding and repairs have been completed, recoat deck and disturbed surfaces and prove water tight
Remove two existing steel pipe clamps on msd vent pipe running up side of tower and replace with aluminum clamps
23
ITEM 17 CONTINUED:
FLYBRIDGE RAILING
FLYBRIDGE CONTROL STAND
24
ITEM 17 CONTINUED:
STEEL PIPE HANGER
PHOENIX DESIGN LADDER
25
ITEM 18:
BOAT DECK RAILING
SCOPE: Provide labor and materials to remove and replace boat deck railing
Remove existing steel boat deck railing P&S
Fabricate new railings of Phoenix design using 316L SS pipe welded and polished
New railing will extend approximately 1 foot further forward to close gap at wheelhouse and 1 foot further aft to provide for handrail at tub step
EXISTING BOAT DECK RAILING
26
ITEM 19:
JASONS CRADLE BOX ON MAIN DECK AND STEP REPAIR
SCOPE: Provide labor and materials to mount steel box to main deck and replace step
Install owner furnished 17" x 17" x 73" SS box on raised foundation welded to main deck port side aft of manifold
Box shall be bolted to new foundation
Remove existing step port side aft on engine room trunk
Fabricate and install new step with dimensions of 2 ft wide x 1 ft tread depth
JASON'S CRADLE BOX
27
ITEM 19 CONTINUED:
EXISTING STEP
28
ITEM 20:
PORT AND STBD AFT BULWARK MODIFICATION
SCOPE: Provide labor and materials to modify bulwark aft of port and stbd quarter bitts to accept Jason's Ladder
Fabricate Jason's Ladder Box with same materials used for Jason's Cradle Box.
New Jason's Ladder Box will be mounted stbd side of main deck between manifold and CO₂ hose reel as directed
Remove existing half round pipe cap rail from port and stbd sides from 9" channel cap rail to end of cap rail aft of quarter bitts
Replace cap rail with 6" x 2" x 0.314 10 1/2 lb structural steel channel
Weld new channel to existing bulwark with 100% weld
Shorten bulwark aft of port and stbd quarter bitts so that opening is wide enough to accommodate Jason's Ladder
Weld four 316L SS pad eyes (2 port and 2 stbd) on deck so that Jason's Ladder can be attached to same
Weld 316L SS self draining socket in deck (1 port and 1 stbd) for stanchion in center of new opening
Fabricate 316L SS removable stanchion to be located in center of new opening
Fabricate and install web type closures for bulwark openings which allow for either half to be opened independently or completely removed with stanchion
29
ITEM 20 CONTINUED:
PORT QUARTER BITT
STARBOARD QUARTER BITT AND BULWARK
30
ITEM 20 CONTINUED:
EXISTING CHAIN RAILING
31
ITEM 21:
STAINLESS STEEL GRAB RAILS
SCOPE: Provide labor and materials to fabricate and install eight grab rails on main deck
Grab rails shall be constructed of 3/4" 316L SS pipe
Remove existing Port and Stbd steel grab rails at midship storage compartment and replace with new
All new grab rails shall be bent, welded, polished and mounted to round 316L SS pads welded to bulkheads
Other locations will be determined by Engineer
32
ITEM 22:
FIRE LOOP REPAIR
SCOPE: Provide labor and materials to remove and replace seven sections of fireloop
All sections of loop are located in Engine room
All new sections shall be fabricated from Schedule 80 steel pipe and slip fit 300# weld flanges to match existing flanges
Use all new fasteners and gaskets
New piping shall be blasted and painted with 3 coats of Amercoat 235 inside and out
All sections are bends
Five sections are 6" pipe
Two sections are 8" pipe
6" FIRELOOP BEND
33
ITEM 22 CONTINUED:
8" FIRELOOP BEND
6" FIRELOOP BEND
34
ITEM 23:
CAP RAIL REPAIR
SCOPE: Provide labor and materials to repair cracks in cap rail
Weld six cracks in existing half round pipe cap rail as directly by Engineer
Make welds 100%
35
ITEM 24:
RUDDER POST CARRIER BEARINGS
SCOPE: Provide labor and materials to open up, clean, inspect and reinstall Port and Stbd Rudder Post Carrier Bearings
While boat is out of water, lift port and stbd rudder posts enough to open up carrier bearings
Disassemble bearings to clean and inspect bearings' surfaces
Reassemble bearings using new fasteners
Fabricate cover fixed to top of each rudder post to make bearings drip proof
PORT RUDDER POST CARRIER BEARING
36
ITEM 24 CONTINUED:
STARBOARD RUDDER POST CARRIER BEARING
37
ITEM 25:
AFT FUEL TANK SUCTION VALVES
SCOPE: Provide labor and materials to replace Port and sbd Aft Fuel Oil Suction Valves
Existing Bulkhead Valves are 1 1/4" 150# Flanged Union Bonnet Globe Valves
New Valves shall be 150# Flanged Valves suitable for diesel oil service and may be 1/4 turn repairable ball valves
Engineer can transfer fuel about boat to allow for valve repairs
Free up reach rods and attach same to new valves
FUEL TANK SUCTION VALVE
38
ITEM 26:
ENGINEE ROOM SUPPLY BLOWER
SCOPE: Furnish labor and materials to fabricate and install intake plenum and install repaired axial fan in duct work located in forward hold.
Fabricate intake plenum as per drawing from 10 GA steel sheetmetal
Sand blast to SP-6 and galvanize new plenum prior to installation
Remove temporary 15 1/2 “ x 24” cover from forward intake plenum
Fit and weld new intake plenum to existing structure with 100% weld
Paint inside and outside of plenum with two complete coats of 235 epoxy
Paint outside of plenum with one complete coat of Amershield to match
Install axial fan in forward hold duct work
Engineer will complete wiring and testing same to his satisfaction
FORWARD PLENUM LOCATION
39
ITEM 26 CONTINUED:
40
ITEM 27:
HYDRAULIC CRANE
SCOPE: Provide labor and materials to remove crane from boat and reinstall on crane base
Crane shall be disconnected electrically and hydraulically by Engineer
Unbolt crane from base and transport same to Station 35/Pier 22 1/2 by truck andunload at shop
Pick up crane from Station 35/Pier 22 1/2 shop and deliver to boat
Bolt crane to crane base
Engineer will reconnect
CRANE