2013 DD DEFECT LIST. Total amount. No discount. Unit Rate SR. NO. DESCRIPTION

Transcription

1 SR. NO. DESCRIPTION 2013 DD DEFECT LIST 3.01 SHIP SIDE DIRECT SEA VALVES AND INTERMEDIATE VALVES SCOPE OF WORK a) Valves to be opened up, overhauled and surveyed by Classification Society Surveyor and boxed back after renewing the gland packing, jointing, nuts & bolts/studs (Material SS), etc. Body to be internally cleaned and painted with corrosion resistant paint. Stainless steel nuts and bolts to be used for ship side valve b) Few valves may need machining/ skimming of valve seat/ lids etc. The Prussian Blue Test is required on machined surfaces. Refer Attachment 1 A Unit Rate Total amount No discount c) Few valves may require spindle replacement. The bidder to quote for replacement of spindles for all the valves. Spindles for replacement are given as a separate job d) Few valves may require complete replacement. The bidder to quote for replacement of all the valves. Valves for replacement are given as a separate job The list of all the valves is annexed as Attachment I All valves are to be identified and marked before undertaking the work. Yard to quote machining/-skimming charges per valve separately. Yard to quote lump sum cost of each valve for servicing/ overhauling & replacement as per the enclosed list. EVALUATION The evaluation shall be as referred above. The payments shall however be made as per actual work 3.01 A OTHER INTERMEDIATE V/VS TO RENEW 1 MSW Line stbd isolating v/v to renew mat cast steel,10k 4 nos A/C sea water Cooling water line butterfly v/vs to renew 2 size -100 mm,butterfly v/vs (both condenser inlet and outlet v/vs )

2 4 nos D/F sea water Cooling line flap v/vs to renew size mm,butterfly v/vs (both condenser inlet and outlet v/vs ) CLEANING OF SEA CHESTS The detail of sea chest is annexed as Attachment-II a) To remove gratings of sea chest. To clean them properly and paint as per ship s painting scheme. Few of gratings of sea chests may require renewal, the bidder to quote for replacement of all sea chest gratings. b) To clean the sea chest thoroughly and grit blast to SA 2.5 / sweeping and to paint as per ship s bottom painting scheme. c) To ultrasonically test the condition of sea suction pipes between sea chest and low/high Sea suction valves.(imp) d) To renew 6 Nos, 10.6 Kgs. Al anodes (size: 515 mm x 120 mm) in sea chests. e) To re-fit the Gratings with new bolts, nuts, washers and secure. Material specification Stainless Steel. Around 44 nos of bolts of size 10 mm (dia) x 40 mm (Length) shall be required. Yard to quote lump sum cost for each of the item as per Scope of Work. Yard to quote for supply of Al anodes Yard to quote lump sum cost for each of the item as per Scope of Work. Yard to quote for supply of Al anodes 3.03 SEA SUCTION FILTERS The list of sea suction filters is annexed as Attachment-III. a) Filter cover and filter element to be removed and cleaned. Filter casing to be cleaned. Corrosion resistant paint is to be applied on filter casing & filter cover. Filter element and cover to be boxed up with new O-ring/ joints etc. Filter casing to be renewed, if required. Size: D= 0.75Mtr X Height- 1.2 Mtr (approx)

3 b) To inspect the pipe piece between high and low sea suctions, clean from inside, gauge and renew if required. Length mm x 450 mm OD, with butt pieces for other suctions, 250 mm long, OD- 300 MM, 250 mm and 115 mm each c) Cathelco make anodes (12 nos) in Engine room (low & high) sea suction and LP room sea suction to be renewed. (Anodes Ship supply). Yard to quote lump sum cost for each of the items of the scope of work separately. To quote for renewal of High/Low sea suction filter body of size: D= 0.75Mtr X Height- 1.2 Mtr (approx) 3.04 CLEANING & PRESSURE TESTING OF COOLERS The list of coolers is annexed as Attachment-IV. All the coolers from Engine room/ Machinery spaces are to be taken to yard s workshop for necessary cleaning and pressure testing as per the scope of work. Ship s E/R does not have a sky light, therefore, all removals to be done through BT room after opening a bulkhead door in E/R AC platform and 2 deck head openings in fridge handling room on fore- castle deck. AT room has separate deck head opening on main deck. All these openings are required to be closed back after use and made water tight using new gaskets, nut bolts etc. Obstacles in way of transportation to be removed and refitted.( racks. Spares boxes, anchor winch power pack units etc ) All adopters and rings required for pressure testing to be provided by the yard. AA LOCATION : ENGINE ROOM 1 LOW TEMPERATURE COOLERS 2 Nos. port LT cooler to be presented for survey a) To disconnect the freshwater inlet/outlet connections dia 200mm.

4 b) To remove end covers. To remove the water box after disconnecting SW inlet/ outlet pipes. To crop and renew sea water inlet / outlet partition plate in water box (20 X 12 X 1 size). To renew MS taper ring OD= mm, ID=530 mm, Thickness=20 mm. To clean cooler tubes, end covers and water box. Inside surfaces of water box and dish end cover to be grit blasted to SA 2.0 and applied with (Yard supplied) Belzona ceramic coating. Anti corrosive paint to be applied on outside surfaces c) To pressure test the cooler to 5 bar using necessary end rings/ blanks. Leaking tubes (if any) to be renewed (tube size OD-11.1mm,ID = 9.5 mm, Mat : Cu-Ni) and cooler to be repressure tested, Consider renewal of 20 Nos of tubes. d) Aluminium anode to be renewed on fixed end covers. Total 2 nos. size: 80 x 50 x 120 mm (width x height x length) (ANODES YARD SUPPLY) e) To fit back the water box, End covers and connect all pipelines renewing gaskets & rubber rings. f)make and supply 2 nos MS dome covers as per sample with a stub piece and blank for cleaning purpose without opening the whole cover. (Diameter of the cleaning hole should be minimum 6 ). Size- Outer flange OD- 670 mm, Dome- ID- 660 mm,depth- 255 mm, thickness- 8 mm, Flange thickness, 20 mm, MS fabricated. Anode size- 100mm dia, 60mm height, two no's.to renew. Yard to quote lump sum cost for each cooler as per the scope of work. Yard to quote tube renewal separately for evaluation 20 tubes are to be considered./cooler Yard to quote separately for fixing baffle plates on the tube stacks of both existing coolers. *Yard to quote separately for Belzona ceramic coating to be applied on inside of all four end covers and for Anticorrosive paint to be applied on outside surfaces. 2 H.T. COOLERS -2 NOS a) To open end covers. To remove the inlet/outlet SW lines. To disconnect the fresh water inlet/outlet connections. Cooler tubes and End covers to be cleaned.

5 b) Cooler to be pressure tested to 5 bar using necessary end rings/ blanks. Leaking tubes (if any) to be renewed (OD: 11.1mm, I.D.: 9.5mm.) and cooler to be re-pressure tested. c) Aluminium anode to be renewed on dish end covers. (Yard supplied) Belzona ceramic coating to be applied on inside of End covers. Anticorrosive paint to be applied on outside surfaces. Cooler cover size- flange 320 mm square x 35 mm thick, Cover depth- 70 mm, thickness- 8 mm Yard to quote lump sum cost for each cooler as per the scope of work. Quote to include cost of BELEZONA ceramic coating & chemicals used for cleaning Yard to quote tube renewal separately for evaluation 20 tubes are to be considered. Also separately quote for fabrication/ casting of cover 3 AUXILIARY ENGINE LUBE OIL COOLERS 4 Nos. A/E#4 L.O.cooler to present for survey a) To remove from place and clean chemically on lube oil side and pressure test the same to 5 bar in presence of Classification Society Surveyor. Size 330 mm dia X 1350 mm long. b) After pressure testing coolers to be fitted back with new gaskets and O-rings. Yard to quote lump sum cost for each cooler as per the scope of work including the cost of chemicals used for cleaning. Yard to quote tube renewal separately for evaluation 10 tubes are to be considered. 4 AUXILIARY ENGINE AIR COOLERS - 8 Nos. a) Coolers to be removed from place and cleaned chemically on air and watersides, and to pressure test to 5 bar in presence of Classification Society Surveyor. Size: 400 x 440 x 400 mm b) After pressure testing the coolers to be fitted back with new gasket and o-rings. Cooler cover size- 445 x 400 mm x 110 deep rectangular with water inlet and outlet connections NOTE :

6 Yard to quote lump sum cost for each cooler as per the scope of work including the cost of chemicals used for cleaning. Yard to quote tube renewal separately for evaluation 10 tubes are to be considered. Yard to quote separately for cover casting/ fabricating 5 FWD ANCHOR WINCH COOLER 1 NO. a) To disconnect and remove the cooler and blank oil lines. b) To clean and pressure test the coolers (TP=15 bar) Yard to quote lump sum cost as per the scope of work. Yard to quote tube renewal separately for evaluation 4 tubes are to be considered. BB LOCATION : BOW THRUSTER ROOM 1 BOW THRUSTERS MAIN DRIVE MOTOR AIR COOLERS (2 NOS.) Cooling of the motor windings is achieved by a system incorporating one cooler stack, which has specially designed fins and tubes. This cooler stack is cooled by seawater. Air circulation is achieved by shaft-mounted fan. a) Cooler is to be removed from place and inspected. The internals and externals are to be cleaned with suitable chemicals. Fins are to be cleaned by compressed air jet. b) Cooler to be pressure tested at 5 bar. At the time of pressure testing if any leakage is noticed through tubes same to be rectified either through brazing or renewal and pressure tested again. Tube size approx. 12 mm dia. c) The (Yard supplied) Belzona ceramic coating to be applied on the cooler end cover distance pieces after grit blasting to SA 2.0. Anti corrosive paint to be applied on outside surfaces. Few end covers may require renewal. Yard to quote for the same. Size- 0.25MTR X 1MTR with inlet/outlet pipes with flange of 50mm dia. d) After pressure testing coolers to be fitted back with new gaskets and O rings. NOTE : Yard to quote lump sum cost for each cooler as per the scope of work.

7 Yard to quote tube renewal separately for evaluation 10 tubes are to be considered. CC LOCATION : AZIMUTH THRUSTER ROOM 1 AZIMUTH THRUSTERS MAIN DRIVE MOTOR AIR COOLERS - 2 NOS. Cooling of the motor windings is achieved by a system incorporating one cooler stack, which has specially designed fins and tubes. This cooler stack is cooled by seawater. Air circulation is achieved by shaft-mounted fan. a) Cooler is to be removed from place and inspected. The internals and externals are to be cleaned with suitable chemicals. Fins are to be cleaned by compressed air jet. Cooler to be pressure tested at 5 bar. At the time of pressure testing if any leakage is noticed through tubes same to be rectified either through brazing or renewal. Tube size approx. 12 mm dia. Few end covers may require renewal. Yard to quote for the same. Size- 025MTR X 1MTR with inlet/outlet pipes with flange of 50mm dia b) The (Yard supplied) Belzona ceramic coating to be applied on the cooler end cover distance pieces after grit blasting to SA 2.0. Anti corrosive paint to be applied on outside surfaces. c) Pressure tests the tubes at 5 bar and box back in place with new gaskets/ joints. Yard to quote lump sum cost for each cooler as per the scope of work. Yard to quote tube renewal separately for evaluation 10 tubes are to be considered. 2 PORT & STBD AZIMUTH THRUSTER LUBE / HYD OIL COOLERS - 4 Nos. a) Coolers to be cleaned & pressure tested to 5 bar. Leaking tubes, if any, to be renewed. b) Seawater Inlet/outlet end covers to be renewed. The inside of the covers to be applied with (Yard supplied) Belzona ceramic coating after grit blasting to SA 2.0. Anti corrosive paint to be applied on out side surfaces. ( Total 8 no covers, material- casting APS) c) After pressure testing coolers to be fitted back with new gaskets and O-rings. imp- az. Thruster L.O. coolers need renewal- 2 nos

8 Yard to quote lump sum cost for each cooler as per the scope of work. Yard to quote tube renewal separately. For evaluation 10 tubes are to be considered. 3 AFT ANCHOR WINCH COOLER 1 NOS. a) To disconnect and remove the coolers and blank oil lines. b) To clean and pressure test the coolers (TP=15 bar) If required covers to be renewed. Yard to quote separately for cover renewal. Size-50 mm Yard to quote lump sum cost for each cooler as per the scope of work. Yard to quote tube renewal separately for evaluation 4 tubes are to be considered 3.05 MAINTENANCE OF BOW THRUSTERS - 2 NOS. DETAILS: Make : M/s. Schottel Lips B.V Type CT 09H-1DP Propeller Dia 1800mm : RPM : 353 kw : 736 No. of Blades 4 Tunnel Dia : 1835mm Length : 1800 mm Wall Thickness : 20 mm SCOPE OF WORK FOR BT No.1 & 2 a) The system oil and seal oil to be drained and disposed off. 2 Nos. Hydraulic oil tanks (500 ltrs each) and 2 Nos. seal oil tanks (50 ltrs each) are to be cleaned from inside. New oil (Ship supply) to be filled in the tanks. b) 4Nos of propeller blades of each thruster are to be removed, inspected, faired, polished and varnished. If found beyond repairs same to be renewed (Ship supply). Propeller blades to be fitted back using new seals etc (Ship supply). c) Propeller blades and pitch movement to be checked and adjusted.

9 2 OVERHAUL OF LGB - 2 Nos. a) To disconnect and remove the Lower Gear Box from place and shift to workshop with support frame. b) LGB to be dismantled. All internal parts to be cleaned examined and surveyed. MPI test to be carried out on running parts LGB to be assembled with new bearings and seals. Horizontal Shaft required some building up and machining where seal rests. Spacers supplied by ship will require machining for proper fitting. All spares ship supply. c) To install back LGB in its place and secure. d) Final Testing and trial to be carried out. Complete job is to be carried out under supervision and advice of OEM s Service Engineers who will be arranged by the owner and they should be allowed to work in yard at no extra cost. The drawing of BT is annexed at Attachment-IX. Yard to quote lump sum cost for each of the thrusters as per complete scope of work. # Quote to include job of sealing all B/T electrical/electronic panels- 1Mx2.5M and 1.5Mx 1.5M- two each (total 04 no s) to avoid ingress of sand dust MAINTENANCE OF 2 NOS. AZIMUTH THRUSTERS (PORT & STBD.) DETAILS: Make : M/s. Schottel Lips B.V. Type : S 1500 / 1502 ZSCP Propeller Dia 2250 mm : kw : 1470 AT 1000 rpm No. of Blades 4 Steering speed : 2.5 rpm 1 FLOATING DRIVE SHAFT Qty: 2 Nos. a) To disconnect from place and clean. Same to fit back using new grease EP1 (Ship supply) and tighten all bolts. b) port A/T Floating Shaft to be renewed if required (Ship supply). c) To check & record the alignment between motor shaft and horizontal drive shaft of upper gear box and adjust. 2 Upper Gear Box Qty: 2 Nos.

10 a) To drain the oil from upper gearbox in a tank and dispose off. b) To check the backlash of gears and record. MPI test to be carried out on running parts. The UGB to be disconnected, removed from place and transported to machine shop for overhaul. c) To dismantle completely, clean, examine all parts and present for survey. d) To assemble UGB using new bearings and seals etc (Ship supply) and fit in place. All pipe connections to be made using new soft iron ferrules. 3 Stem Section (Port & Stbd) Qty: 2 Nos. a) To drain the oil in a tank and dispose off. b) Check lower seal for leaks before removing stem section. Stem section of both thrusters to be removed from place after disconnecting. Main deck will have to be cut in two places above thruster to take out stem sections. Size of cuttings mm x 2100 mm Proper cover to be provided to prevent ingress of water and dust to the AT room through the cut openings. Temporary railings to be provided around the opening as safety measure c) All parts of the stem sections to be cleaned and all seals to be renewed. Hydraulic hoses to be renewed if found damaged. d) To box back stem sections. e) To weld back the plate cut on deck and to test water tightness using water jet. 4 Lower Gear Box Qty : 2 Nos. a) To drain the oil in a tank & dispose off. b) To remove all four propeller blades. Clean, inspect, fair up, polish and varnish. MPI test to be carried out on running parts. If found beyond repair same to be renewed (Ship supply). Propeller blades to be fitted back using new seals etc (Ship supply c) Propeller rope guard of each thruster to be removed & cleaned, any fouling on the shaft to be cleared and all exposed area to be painted as per ship s painting scheme. d) Kort Nozzle to be disconnected from place and lowered to facilitate removal of LGB. Same to be fitted back and connected. e) To fabricate a frame (2000 mm x 1500 mm x 30 mm plate) required for LGB lowering.

11 To support LGB on the above frame, disconnect and shift to workshop f) LGB to be completely overhauled and surveyed by Classification Society Surveyors. LGB to be assembled with new bearings, shaft seal etc. g) Blade carriers to be renewed (Ship supply). This shall require some machining. h) LGB to be fitted in place. i) Rope guards to be fitted back and secured. j) To fill-up new oil (Ship supply) in inter seal spaces. Plugs to be fitted back using new copper washers (Ship supply) k) Kortz Nozzles are to be tested hydrostatically. In case of any leakage, same to be checked and rectified by welding or renewal of corroded section of plates. Kort Nozzle Inside surface is to be applied with float coat and outer surface is to be grit blasted to SA 2.5/sweeping standard and painted as per ship s painting scheme. m) Propeller Blades Pitch movement and Steering to be checked, adjusted and recorded. n) To overhaul 2 nos counter balancing valve blocks. Job involves removal after pipe disconnection of v/v blocks, renewal of seals of counter balancing v/vs ( 4 nos), Relief v/vs ( 4 nos), Check v/vs ( 4 nos), Flow control v/v seals (8 nos) and 8 nos Dawty washers of hose connections. (Size : 55 mm x 45 mm x 1.5 mm) To renew 8 Nos. flow control valve unit sealing O-rings (2no's O- rings per valve, Yard supply)) o) TO renew 4 no of hoses on C.B.. v/v block for pitch and az. For both thrusters working pr. 250 bar (yard supply) p) To renew fittings with ferrules, dowty washers for hydraulic lines of pitch and azimuth circuit of both Azimuth thrusters. Pipe Dia. -- No. Of fittings (approx)-12mm no s, 38mm no s, 16mm, 20mm & 28mm no s each q) To renew four hydraulic lines with ferrules and fittings between C.B. valve block and hydraulic motors- 04 no s for both thrusters. Length- 1.5mtr, Dia- 1 Pipe- ship supply. Ferrules & fittings- Yard supply. ( All dawty washers yard to supply)

12 r) 2 Nos. header tanks (cap: 500 ltr each) and 2 Nos. hyd oil tanks (cap: 1,000 ltr each) to be drained in a tank and dirty oil to be disposed off. All tanks to be cleaned from inside.. New oil (Ship supply) is to be filled in. Both tanks man hole covers to be fitted back renewing gasket and damaged studs and nuts (Size: 12 mm SS studs and nuts, Qty: 24 Nos. On inspection if header tank plating found corroded, defective portion to be renewed. Yard to quote per Sq. Mtr area or in lump sum Complete job is to be carried out under supervision and advice of OEM s Service Engineers who will be arranged by the owner and they should be allowed to work in yard at no extra cost. The drawing of Azimuth Thruster is annexed at Attachment - X. Yard to quote separately for each of the components of the scope of work for each thruster. Final Testing and trial to be carried out. # Quote to include job of sealing all A/T electrical/electronic panels- 2Mx2.5M 04 panels and four tank vents to avoid ingress of sand dust MAINTENANCE OF AUX ENGINE 1,3 & 4. DETAILS Make Wartsila : Type 12 V 22 MD : Capacity 1500 KW : SCOPE OF WORK : 1 AUX ENGINE Nos. 1, 3 & HR ROUTINE TO CARRY OUT a) To carry out 8000 hrs routines. As per attachment- XI b) Turbochargers of 1,3,&4 Aux. engines to be overhauled. (2 in each engines) Type ABB VTR (same bearings to be used ) c) After 8000 hrs routine successful trial to be shown to the satisfaction of ship staff All spares except nut & bolts shall be Ship supply. Complete job is to be carried out under supervision and advice of ship s staff. A copy of 8000 hrs service routine is annexed at Attachment- V. Yard to quote lump sum cost for the complete scope of work.

13 2 AUX. ENGINES hour routine a) One unit of each banks to be dismantled and inspected all parts to be cleaned and boxed back. b) Turbochargers to be overhauled (2 in each engines) same bearings to be used Type: ABB VTR c ) Sump oil to be drained sump to be cleaned and fresh oil to be taken. 3 AUX. ENGINE 1,2,3,4 a) Aux. Engine. 1&4 Bottom end brg bolts to be renewed b) All cams to be inspected for wear and tear. c) All engines Crank shaft deflections to be taken d) All engine lube oil and fuel oil filters to renew Above mentioned jobs to be carried out under OEM service engineer supervision Note Yard to quote lump sum cost for the each complete scope of work A) MAINTENANCE OF DECK CRANE Make : Hydralift. Type Telescopic Boom (square) type. : Boom length Meters. : Capacity 2.5 Ton at 15 Mtrs. and 1Ton at 30 Mtrs. : No. of Telescope: 3 nos. Max. Working Hyd. Pressure: 180 bar. a) Jib cylinder to be disconnected and brought down. & overhaul b) To disconnect and remove the whole boom assembly to a suitable location in the yard. c) To disconnect & remove all 3 Nos. telescopes from the main jib and place on blocks separately. Same to be cleaned and inspected. e) All the four outer surfaces of the main boom to be grit blasted to SA 2.0/ sweeped and painted as per ship s painting scheme. Winch drum, motor and wire rope to be removed before grit blasting and to fit back the same after the job. Area: 60 sq. m. approx. Length of boom: 15mt Width: 500 mm Height: 1000 mm

14 f) Removed items to keep covered / protected from dust. g) All the three Telescopes to be assembled and fitted inside the main jib and connected. h) To renew the thrust pads (Ship supply) fitted on the main jib and telescopes, rectangular pads should be fitted on top and bottom and circular pads at sides i) To fit back boom assembly with old jib bolt and bearings j) To renew. hydraulic hoses as required (Ship supply). k) Hyd. tank oil to be drained and disposed off. Tank manhole cover to be opened, inside space to be cleaned and renew oil filter element. New oil (Ship supply) to be filled in and manhole cover to be fitted back renewing the joint and bolts (size 12 mm dia, no. of bolts 12, material SS) m) Try out the hyd. pump and all operations of the crane. To test the crane to proof load after all repairs and endorse chain register. Certificate to be issued by the Authorized agency for load test at i) Boom length 15M Tons, ii) Boom length 30M Tons Diagram of the crane is annexed at Attachment-VII. Complete job is to be carried out under supervision and advice of OEM s Service Engineers who will be arranged by the owner and they should be allowed to work in yard at no extra cost. Hoisting winch with wire and hook, fitted on top of the main jib, to be removed from place and fitted back after the painting of the jib. Yard to quote lump sum cost for the complete scope of Work MAINTENANCE OF BURNER BOOM: a) To drain oil from tank, clean, renew filter and oil ( ship supply). b) To drain oil from slew gear box, flush and take fresh oil. c) TO check the tight ness of slew ring,slew gear box, and foundation column d) To check the operations of the burner boom. e) To check hoses for damage and renew if reqd. Note: All jobs to be carried out under the supervision of OEM engineer. All spares and oils ship s supply 3.1 A) MAINTENANCE OF TAUT WIRE WINCH (Stbd) Make BANDAK. :

15 Type : MARK-IV Max. Working Hyd. Pressure: 180 bar Attachment viii To remove winch drum, inspect for damage/wear and tear of shaft, keyway, flanges, securing bolts, threaded holes, bearing, seals, and gear wheels, drive belts etc. If required shaft, its keyway and flange to be renewed by the yard as no ready spares available. Threaded holes on the drum may require filling and re-tapping and fit back. OR TAUT WIRE SYSTEM TO BE REPLACED BY NEW ONE ( SHIP SUPPLY) 3.11 DOMESTIC FRIDGE SYSTEM DETAILS Comp. Nissin Refrigeration and Engineering Ltd TYPE- 6C552A-F, RKS-10F Referigerant-R-22 a) To collect system gas (Freon 22) in gas bottles ( yard to arrange) b) To overhaul Compressor no-2 (port) completely c) To overhaul the heads of the compressor no-1(stbd) by overhauling valve plates, overhauling un-loaders and renewing all gaskets d) To pressurize the system with N 2 on LP & HP sides including condensers (HP=17 bar, LP=10 bar). Check for leakage and repair if any. e) After 12 hrs. the system is to be vacuumised and checked for vacuum for 6 hrs. f) To overhaul the oil separators. g) To Check charging dryer body for leakages and to rectify the leakage, renew drier core instead of silica jel.. h) To Charge the system with Freon-22 (Ship supply) after breaking vacuum. i) Condensers - 2 Nos. (Location: E/R) s.w side to clean k) dom fridge comp 1/2 condenser outlet v/vs leaking same to renew l) Domestic fridge silica jel drier near comp. to renew by core type along with inlet out let and by pass v/v Yard to quote on lump sum cost for the complete scope of work. All spares, gas ship supply

16 3.12 MAINTENANCE OF ACCOMMODATION AIR CONDITIONING SYSTEM DETAILS: AC Comp. : Nissin Refrigeration and Eng. Ltd. Type: 8C75-EB, Refrigerant: R-22, Condenser Size: 457 X 2000, Test Pr. (HYD): 28.6 Kg/CM 2, (AIR): 27.0 Kg/CM 2, Evaporator Inlet valve: 54 mm dia, Evaporator Outlet valve: 77mm dia, Condenser & Drier valves: 52mm dia. AA Compressor No-1 (Location: E/R) a) Before opening the compressor the refrigerant needs to be collected in gas bottles. (yard supply) b) The compressor is to be completely overhauled including oil separators and tried out for satisfactory performance. (Spares Ship supply) BB Compressor no-2 a) To overhaul the heads of compressor by cleaning/ renewing valve plates, un-loaders, and renewing gaskets. CC Evaporators - 2 Nos. (Location: A/C Blower room) a) Covers to be opened and both evaporators are to be cleaned chemically in-situ. Size: 5 x 3 x 6 b) Covers are to be fitted back. DD A/C Blowers - 2 Nos. (Location: A/C Blower room) a) Blowers are to be dismantled and cleaned. b) Blower casing to be painted inside with 2 coats anti corrosive paint and 2 coats of finish paint. Inspect base frame for looseness/cracks and to renew rubber pads c) Rotors to be dynamically balanced and box back with new bearings. Bearings: 1310K (2 No) and 22210K (2 No). d) Blower and motor to be aligned and tried out for satisfactory operation. EE A/C Blower Flaps 6 Nos. (Location: A/C Blower room) All 6 Nos. Blower inlet/ outlet flaps to open, ease up the flaps and to renew the bush/ bearings for flap operating shaft. Plates to be renewed if found damaged. Yard to quote separately for renewal of Flaps. Flap Size: 26 x 6 x 2 mm Quantity: 3 Nos.

17 Material: SS, FF Condensers - 2 Nos. (Location: E/R) Size: OD = 500 mm, Length =2 Mtr. a) To remove the end covers and clean condenser tubes on seawater side. Fit back the end covers with anodes, (Ship Supply) GG Refrigerant System: a) Complete refrigerant system to be pressure tested with Nitrogen (HP=20 bar, LP=10 bar) and checked for leakage, if found, same to be rectified. b) The refrigeration system is to be vacuum tested. c) Silica gel of two in-line dryers to renew. d) The system is to be charged with the refrigerant (Ship supply) and commissioned for satisfactory operation. Yard to quote lump sum cost item wise as per scope of work. All spares, gas and silica gel ship supply PACKAGE A/C UNITS MAKE- DAIKIN - ECR -2 nos Bridge & UPS -1 each. Scope of work: a) All four package A/C unit s condensers sea water side to clean in situ. Size-ECR- Approx. L-1500 DIA 300 MM Bridge and UPS-approx. L MM b) split A/C unit for bridge. evaporator fins to be cleaned Yard to quote lump sum cost item wise as per scope of work OVERHAULING & SURVEY OF PUMPS AA 1 MAIN SEA WATER PUMP NO 1&.2: O haul ( NO-2 P/P SURVEY DUE IN 2014) Quantity: 2 No., Location: E/R DETAILS: Centrifugal pump vertical type, Capacity 500 Cu. m/hr at 25 m head. Make: Naniwa, drive Motor: 55 KW a) To disconnect and remove drive motor from place. b) Pump to be removed from place and dismantled. Trueness of the shaft to be checked. c) All parts to be cleaned and checked.

18 d) Pump to be assembled renewing worn out parts (Ship supply). e) Pump s foundation stool (Size: OD = 640 mm, ID = 600 mm, Mat : MS) to be cleaned, top and bottom seating to be repaired /renewed if required. Pump & motor to be fitted in place and connected. f) Pump & motor to be fitted in place and tried out for satisfactory operation. g) Pump and foundation to be painted (Paint Ship supply). 2 GS PUMP 1 DETAILS: Centrifugal pump horizontal type, Capacity 120 Cu. m/hr at 70 m head. Make: Naniwa, Drive Motor: 55 KW a) To disconnect and remove the pump b) Dismantle the p/p, clean all parts. Trueness of the shaft to be checked. c) GS p/p no-1 vibrations are more p/p foundation stool to be renewed (imp) d) Assemble the pump with new spares (Ship s supply) e) Install, couple, align and show satisfactory running trial 3 GS PUMP-2 DETAILS: Centrifugal pump horizontal type, Capacity 120 Cu. m/hr at 70 m head. Make: Naniwa, Drive Motor: 55 KW SCOPE OF WORK a) Disconnect and remove the pump b) Dismantle and clean all parts. Trueness of the shaft to be checked. c) Assemble the pump with new spares (Ship s supply) d) Install, couple, align and show satisfactory running trial. And vibrations to be checked f) Pump foundation to be renewed as vibration level is high [additional supports to provide if required to reduce vibrations] l= 1555 mm b= 500mmh=500mm For carrying out above job 3 DB p&s F.O. Tank to empty and gas free. (capacity-80 KL Yard to quote lump sum cost for each Scope of work 4 BALLAST PUMP: (O haul) Quantity: 1 No., Location: E/R DETAILS: Centrifugal pump vertical type, Capacity 100 Cu. m/hr, Make: Naniwa, Drive Motor: 15 KW

19 a) To disconnect and remove drive motor from place. b) Pump to be removed from place and dismantled. Trueness of the shaft to be checked. All parts to be cleaned and checked. c) Pump to be assembled renewing worn out parts (Ship supply). d) Pump s foundation stool (Size: OD = 540 mm, ID = 500 mm, Mat: MS) to be cleaned, top and bottom seating to be built up by welding and machined for even surface. (if required) e) Pump & motor to be fitted in place and tried out for satisfactory operation. f) Pump and foundation to be painted Pump s vibration level is presently high. Trueness of the pump motor seating to be checked and adjusted. 5 FIRE PUMP- (Overhaul) Quantity: 1 No., Location: E/R DETAILS: Centrifugal pump horizontal type, Capacity 120 Cu. m/hr at 70 m head. Make: Naniwa, Drive Motor: 55 KW a) To disconnect and remove drive motor from place (cost of removal & fitting back covered in overhauling of motor) b) Pump to be removed from place and dismantled. Trueness of the shaft to be checked. c) All parts to be cleaned and checked and shown to class surveyors d) Pump to be assembled renewing worn out parts (Ship supply). e) Both pump bearings to be renewed. (Yard supply) f) At present even in standby mode vibrations are felt on the pump/motor. Extra supports /brackets to be welded between tank top and pump foundation to reduce vibrations. g) Pump & motor to be fitted in place and tried out for satisfactory operation OILY BILGE WATER SEPARATOR OILY BILGE WATER SEPARATOR TYPE UST AA OILY BILGE WATER SEPARATOR ALARM

20 a) To check, calibrate and adjust 15-PPM Alarm monitor in presence of Classification Society Surveyor. The necessary certificate of calibration is to be issued by DNV. BB OILY BILGE WATER SEPARATOR a) Oily water separator to dismantle completely, through internal cleaning of all the chambers to be done. All filter elements to be renewed unit to be presented for survey. separator to box back and trial to be given any leaks to rectify. Filter Elements- Ship's supply. Yard to quote lump sum cost for the complete scope of work 3.16 COMPRESSED AIR SYSTEM AA BURNER AIR COMPRESSOR no-1 Details: Make: Atlas Copco, Type: GA 808, Air-cooled, screw type. Running hours: a) To overhaul burner air compressor as per OEM s work scope. Job involves renewal of air; lube oil and separator filters, renewal of oil, overhauling of unloader, and chemical cleaning of radiator fins. All spares Ship s supply. b) Compressor to be tried out for satisfactory operation including testing of unloading and temperature cut-out. Complete job under (a) is to be carried out under supervision OEM service engineer BB BURNER AIR COMPRESSOR no-2 Details: Make: Atlas Copco, Type: GA75, Air-cooled, screw type. Running hours: a) To overhaul burner air compressor as per OEM s work scope. Job involves renewal of air; lube oil filters, renewal of oil, overhauling of unloader, chemical cleaning of cooler. All spares Ship s supply. b) Compressor to be tried out for satisfactory operation including testing of unloading and temperature cut-out. c) To overhaul/renew the auto drain valve of compressor Dia of v/v -6, solenoid operated v/v CC Starting Air Compressor Valves:

21 To overhaul and pressure test 4 Nos. safety valves as mentioned below: and shown to surveyor (certificate of pr. testing to be issued ) i) 2 Nos. valves to be pr tested at 31 bar 2)2Nos. valves to be pr tested at 9 bar DD Compressed Air system valves: 1 To overhaul and pressure test 2 Nos. pressure-reducing valves for control air and General service air. Capacity: 30 bar to 7 bar 2 To overhaul 2 Nos. relief valves for service air and control air. Same to be set to lift at 8.0 bar. 3 To overhaul 2nos safety v/vs and pr test for p&s air receiver and to set for 32 bar. 4 To overhaul pr test 2 nos relief v/vs of burner air compressor. Set pr. 8.8 bar certificate of pr. test to be issued. All spares ship supply Yard to quote lump sum cost for each of the components of scope of work separately 3.17 REVERSE OSMOSIS PLANT R O plant port and stbd Port R.hrs Stbd. R.hrs-9500 Servicing of R.O. plant to be done by service engineer as per OEM Scope of work Spares - ships supply 3.18 AA MAINTENANCE OF FIRE LINE RELIEF VALVE (2 Nos) LOCATION: ENGINE ROOM & BOAT DECK 2NOS a) Relief valves are to be dismounted from place and disassembled, all parts are to be cleaned and inspected. Skimming is to be done, if required. Size: Pipe dia. 125-mm. Blank flange (230 mm dia x 16 mm thick, Mat: MS) is to be fitted in place of valve when removed for keeping the ship s fire main pressurized. b) Valve to be reassembled and pressure tested to 8.5 Kg/CM2 in the presence of Classification Society Surveyor. Valve to be fitted back in place, with new gaskets/joints/packing etc. A certificate to be provided after completion of testing.

22 Yard to quote lump sum cost for each of the relief valves separately as per scope of work. BB HALON 1301 SYSTEM: To carry out weighment of 7 nos Halon cylinders and 3 nos master CO2 cylinders. & Certificate to be issued cc E/R BLOWER AND FUNNEL FLAPS E/R blower flaps 4 nos and funnel flaps 2 nos remote operating mechanism, pulleys, wires and hinge of dead weight lever rusted same to open clean, ease up and to fit back in place. also to paint where ever required. Flaps to ease up and defective ones to renew Bottom grating to renew if required for access to nos manholes to be opened grating size 1.5m x 1m.All flaps operation to check for free movement OVER BOARD PIPE LINES CLEANING Following overboard pipelines are to be cleaned internally using rods / high-pressure water jet / chemicals. Job is to be undertaken while the overboard valves are under overhauling. Pipe lines UT gauging to be done thinned pipelines to be renewed (IMP. Some pipes may have to be renewed) Sewage overboard line. Size: 150mm dia x 2600mm (E/R PORT). Sanitary drains (2 Nos.) overboard. Size: 100mm dia x 1100mm (E/R PORT) and 80mm dia.x 1100mm (E/R STBD) ECR A/C cooling seawater overboard line. Size: 65mm dia x 800mm (E/R PORT) Bow thruster coolers seawater overboard line. Size: 65mm dia x 2800mm (BT room STBD) Azimuth thrusters coolers sea water overboard line. Size: 80mmdia x 2400mm (AT room PORT & STBD) R.O.Plant overboard line 65 mm dia x 1100 mm (E/R STBD)

23 UPS A/C cooler overboard line 65 mm dia x 1100 mm (E/R Stbd) Emergency Generator Engine cooler overboard line 65 mm dia x 1100 mm (E/R Port) All above pipelines are passing through shipside tanks. Yard to quote lump sum for each of the components of the scope of work separately. Also quote for renewal in each case 3.2 PIPELINE RENEWAL/ INSTALLATION: The pipeline of various diameters from ½ to 12, schedule 40 and schedule 80 are to be renewed. The job involves removal of defective pipe from its place, fitting the new ones, with new flanges and clamps and related jobs of pipe line renewal / installation. In case the pipelines pass through watertight bulkheads, it is to be maintained as per classification requirements. The pipe is to be cleared of all mills, scales and hot dip galvanized after fabrication. All renewed pipes are to be painted as per ship s painting scheme. The open end of fire lines and air conditioning salt water-cooling lines are to be provided with blank flanges during the period of line removals. To renew all pipe flanges, joints, clamps, nut bolts etc. Yard to quote the cost per meter of pipeline of various diameters of the referred schedules inclusive of every thing as per the scope of work.

24 Yard to quote for supply & renewal of various sizes of flanges, bends & clamps etc. The cost of any pipe of nominal dia other than quoted will be calculated by interpolation / extrapolation. Pipe lengths of various sizes are mentioned in the table at Attachment V pipe lines Fresh water pipe line going to main deck galley to renew from 1 out side work shop, pipe has two penetation to deck head.pipe passing about 6m height from floor plate level 2 gen service p/p sea water line going to AT,BT, A/C & D/F common distributer section to renew mat sch-80 3 ECR AC obd pipe last section before v/v to renew 4 AE2 L.O. cooler thermostat by pass line to renew mat sch MISCELLANEOUS MECHANICAL JOBS 1 E/R BILGE PIPE LINES AND TANK TOP PAINTING E/R, A/T ROOM and Bow thruster room bilges [tank tops] including bilge wells [5 nos.] and pipe lines to clean with chemical and paint. (2coats) paint ships supply Approx. sizes E/R 340 sq mtrs B/T 28 sq mtrs A/T-132 sq mtrs 2 ENGINE ROOM BULKHEAD PAINTING: Chemically clean the E/R bulkheads including vertical pipe lines, soap wash and give two coats of white paint. (ship s supply). Approximate area- Twin deck- 114 sq mtrs Bottom deck- 320 sq mtrs Yard to quote lump sum cost per square meter 3 AUX. ENGINE F.O. LINE FILTER (duplex type )

25 Presently Aux. Eng F.O.. line filter is very small and oil flow is restricted resulting in starving of engines. Due to small surface area on filter element gets chocked in bad weather condition. Inlet and outlet pipe to filter is 32 NB.A higher flow rate filter of 100 NB to be fitted in the line.inlet and outlet pipe lines to be modified to suit the new filter (SHIP SUPPLY ) 4 AT ROOM BLOWER TRUNKING MODIFICATION To make & fit two numbers extensions to trunking at the aft to provide cool air near the tanks. Size- Total 8 mt x 200 mm x 200 mm with 4 bends Yard to quote lump sum cost per square meter 5A Renewal of floor plates. 2 nos. floor plates to be renewed one in front of dryer and other near port LT cooler. Mat - aluminium thickness 6 mm. size 805x565 mm, &760x655 mm 6 CALIBRATION OF PR.GAUGES Main engine 1,2,3,4 L.O. pr. gauge-0-10 bar-- 4nos L.T Cooling water. 0-6 bar--4nos H.T. C.W. Pr. gauge bar-- 4nos charge air pr. gauge bar - 4nos start air pr. gauge 0-60 bar--4 nos p&s AT L.O. pr gauge-0-10 bar -2nos p&s air receiver pr. gauge-0-50 bar-2 nos start air comp LP pr. gauge 0-16 bar -2 nos start air comp HP pr. gauge O-60 bar-2 nos MSW p/p-1/2(suc -1to4bar, disch 0-10 bar - 4nos Fire p/p, em. Fire p/p& manifold -5 nos bilge p/p(suc -1to4bar, disch 0-7 bar - 2nos ballast p/p (suc -1to4bar, disch 0-10 bar - 2nos GS p/p 1/2(suc -1to4bar, disch 0-14 bar - 4nos Total-45 nos 7 TO INSTALL D.O. PURIFIER IN PLACE OF EXISTING L.O. PURIFIER

26 Job involves removing of existing L.O.Purifier from foundation and fitting new ship supplied auto desludging alpha laval purifier on the existing foundation and its controls. Foundation and lines modification to be done if required.same to be tried out. capacity of purifier 3m3 per hour. 8) Anchor Winch FWD-P&S: To dismantle brake assembly. To renew brake lining. Assembly to be boxed back and brake tension to be adjusted for satisfactory operation.(lining Yard supply). Dimension: 5200MM X 160MM X 16MM Thick. Counter sunk brass screws are yard supply. Staging of 3m x 1.2m x 4m high x 2nos. required for the job. If lining is satisfactory same to be roughened and fitted back 9- Hot water calorifier- calorifier body corroded and holed in many places. New pr. vessel of same size to be fabricated.arrangement to be made to fit the heating elements.(ship supplied.) Pr. vessel to test to 8 bar. Inlet,outlet & drain connection and manhole to be provided, temperature gauge pr. gauge and relief v/v to be fitted,provision for fitting two thermostat to be made same to be brought back on board and fitted in place. connections to be given and commission. working pr-5bar. size--dia-650 mm, capacity 400 ltrs. suitable insulation to be provided approx- 50 mm thick. ELECTRICAL 3.22 OVERHAULING OF ELECTRICAL MOTORS: All the electrical motors as per the list annexed at Attachment- VI are to be overhauled. Overhauling shall include the following jobs but not limited to: Motor insulation to be checked before and after overhauls and a) recorded. To disconnect the motor and remove from place. To dismantle b) the motor, clean and inspect all parts. All windings, rotor and stator, to be thoroughly cleaned using c) electric degreasing spray and all accumulated grease, dust and foreign material to be removed. d) To be varnished and baked. e) Continuity and phase balance of windings to be checked.

27 Motor to be assembled renewing both bearings and old f) bearings to be returned to the vessel. g) Motor to be fitted in place and aligned. All connections at the terminal block are to be made with proper h) size copper lugs. All motor end cover/casings to cleaned and coated with anti i) corrosive paint. Motor to be fitted back, connected and tried out with respective j) loads for satisfactory operation. Few of the motor rotors may require dynamic balancing. Yard k) to quote separately for same. For Evaluation Motor at S.Nos. 01, 02, 12, and 13 are to be considered. Few of the motor end covers and shafts may have to be built-up and machined for correct and tight bearing fit. Yard to quote l) separately for same. For Evaluation Motor at S.Nos. 1,2,3,4,&,6 are to be considered. Few motors may require re-winding. Yard to quote separately m) for same. For Evaluation Motor at S.Nos.01, 02, 07,11,12 may be considered. Yard to quote lump sum prices for each of the electrical motors for the scope of work (S.No. a to k). Yard to quote separately for each of the scope of work (S.No. l to p) for each of the electrical motors. All required bearings to be supplied by Yard 3.23 MAINTENANCE OF ALTERNATORS (4 Nos) Make: A Van Kaick, Singapore, Model: DIDBN 130 1K/6, 690 V, 1000 rpm, 3 Phase, 2000 KVA a) AVR and low pass filter to be removed from alternators. The rotor, stator and both exciters are to be cleaned manually b) and also using chemicals. in place and to be baked to improve the insulation to 100 mega ohms Air gap between the rotor and stator to be checked and c) recorded, it should be equal on all sides. AVR and low pass filters are to be re-fitted and connected. Any d) other connections, if removed, are to be made. e) Alternator to be tried out during vessels afloat condition. If required, Alternator to be magnetized (excited) without f) altering phase sequence. g) Alternator to be tried in parallel with other alternators.

28 If the load sharing of the alternators are not equal, this is to be h) rectified by adjusting governor controls and AVRs. Yard to quote lump sum for each of the alternators as per the Scope of Work OVERHAULING THRUSTER MOTORS PORT AZIMUTH THRUSTER DRIVE MOTOR 1 No. Details of Motor: Make: Siemens, Rating : 660 V, 1475 KW, 990 rpm Bearings DE and NDE: SKF 6330 a) To remove the end covers of bearings. To take out the drive end coupling which is hydraulically b) mounted. To extract old bearings using hydraulic pump and suitable c) d) pullers which are to be arranged by the yard. To fit new bearings (yard supply) in place and box back all parts including the drive coupling 3.25 FWD & AFT BOW THRUSTER DRIVE MOTOR 2 No. Details of Motor: Make: Siemens, Rating : 660 V, 736 KW, 990 rpm Bearings DE NU224 and NDE: SKF 7219B a) To remove the end covers of bearings. b) c) d) e) 3.26 To take out the drive end coupling which is hydraulically mounted. To extract old bearings using hydraulic pump and suitable pullers which are to be arranged by the yard. To fit new bearings (yard supply) in place and box back all parts including the drive coupling Yard to quote lump sum cost for complete scope of work including supply of bearings 3.27 ELECTRICAL SWITCHBOARDS EMERGENCY SWITCH BOARD CLEANING Details: 380 Volts Emergency Generator breaker- 1 no, 380 Volts Supply MCCB- 18 nos, 220 Volts Supply MCCB- 16 nos.

29 a) To clean the breakers using moisture free compressed air. To clean the contacts using an electric cleaner where ever b) required c) To clean the 380V and 220 V bus bars. Yard to quote lump sum cost for the complete scope of work. CALIBRATION OF GAUGES ON MAIN SWITCH BOARD & 3.28 EM. SWITCH BOARD Following gauges on main switch board in engine control room a) are to be calibrated and certified: Ammeters 0 to 800 amp range - 4 Nos. Ammeters 0 to 2 KA range - 14 Nos. Voltmeters 0 to 800 V range - 4 Nos. Power factor meters - 4 Nos. Wattmeters to 1800 KW range - 4 Nos. b) Emergency switch board Ammeters 0 to 100 amp range - 2Nos. Ammeters 0 to 100 amp range - 2Nos. Ammeters 0 to 150 amp range - 2Nos Ammeters 0 to 300 amp range - 1No Voltmeters 0 to 300 V range - 2 Nos. Voltmeters 0 to 400 V range - 3 Nos. Wattmeters KW range - 2 Nos. Wattmeters KW range - 1 Nos. Yard to quote component wise lump sum cost per unit as per the scope of work. Following meters to be calibrated 1)- digital multimeter 2)- c) insulation tester (megger ) 3)-Temperature calibrator (1-each ) and test certificate to be given to ship 3.29 GENERATOR AIR CIRCUIT BREAKERS- 5 nos MAKE: SIEMENS, DRAW OUT TYPE. 660V, 50 HZ, 2000A -- 4 Nos 415V, 50 HZ, 630 A -- 1 No.(EM. GEN. ) To test 5 nos circuit breakers for under voltage To test alternators for high frequency and reverse current trips 3.3 MISC. ELECTRICAL JOBS RENEWAL OF GALLEY EQUIPMENTS:

30 To renew the existing cooking range ELECTROLUX THERMA 1) ( 23 year old ) with following specification.. 6 nos hot plates, 380 volts, 3 phase, 50 Hz, 400 x 350, 4.5 KW each ( total 23.5 kw),. 2 nos ovens 2.5 kw to 3 kw cap, Job involves disconnecting and removing the existing range, bringing in the new range install connect and try out. Existing cables, breakers can be used. Dimensions of present range mm x 900 mm x 800 mm height. If range of existing diamensions/specifications is not available then equivalent or nearest higher capacity range may be installed..job may requre ship side or A deck plate cutting to bring the range inside. if same can not be brought through main deck entrance. cooking range equipment (yard supply ) 2) RENEWAL OF WASHING MACHINE ships laundry machine no1 and 2 to be renewed by new ship supplied macines (ELECTROLUX). Job involves removal of two nos existing machines from the foundation and fitting new washing machines on the existing foundation. Size of machine approx. 112cm x72cm x72 cm.. 3) RENEWAL OF LAUNDRY DRYER ships laundry dryer to be renewed by new ship supplied dryer.job involves removal of old drier and fitting new one. On existing foundation. Size-112cmx66cm x70 cm. 4) A/E- 1,2,3&4 ALARMS & CUT OUT CABLE RENEWAL A/E 1,2,3,& 4 alarms and cut out ( RPM pick up,pr. switch cables for LT,HT,L.O, & Gov. motor ) to renew bet terminal box on engine to sensor Approx. total cable length = 280 mtrs marine heat resistant sheathed cable yard supply to be used. 5) Aux. engine 1,2,3,4 damaged clip on connecters (50 nos) to renew in JB along with numbering tags (near T/C).JB door gaskets to renew size 400x400mm 8 nos

31 6) Hot water calorifier (3 elements 9x3 =27 kw,50hz)- calorifier body corroded and holed in many places. New pr. vessel of same size to be fabricated.arrangement to be made to fit the heating elements.(ship supplied.) Pr. vessel to test to 8 bar. Inlet,outlet & drain connection and manhole to be provided, temperature gauge pr. gauge and relief v/v to be fitted,provision for fitting two thermostat to be made same to be brought back on board and fitted in place. connections to be given and commission. working pr-5bar.temp-70 deg, size--dia- 650 mm, capacity 400 ltrs. suitable insulation to be provided approx- 50 mm thick. approx height with insulation is 1.6 mtr ELECTRONICS 3.31 Service 2 nos Gyro compasses, Make Sperry Marine, Model 1 Navigat X Mk1 Calibrate/ Repair/ renew defective detectors of fixed gas Alarm 2 System. Procure, install and commission new Tawt wire Mark 15 B system in place of the existing Mk IV system. Electronic cabinet 3 for the new system is to be installed in Stimulation Computer room. Fit new CCTV camera in B/T Room, lay video cable RG6U 4 from BT room to ECR and conect camera O/P to the existing 4 Ch. controller in ECR. Procure and install 2 nos buffer amplifiers (1 input & 6 outputs) 5 for GPS NMEA signal.(bridge) Make a wooden platform ( aprox.size, L 200mm x W 30mm)above fwd bridge panel and re-locate all small units & 6 Equipments scattered on the console panel on to the new platform. 7 Renew feedback potentiometers of both B/Ts. Carry out Thrusters fine tuning and DP scaling.(require 8 service engineers from Kongsberg & wartsila).