MAIN ENGINE OVERHAULING JOBS ONBOARD VESSEL RM.0815

Amount

MAIN ENGINE OVERHAULING JOBS (SERVICE COST)

E 25009 : MAIN ENGINE ( SURVEY )

ISOLATE THE UNITS - DRAIN COOLING WATER FUEL OIL ETC. REMOVE ALL NECESSARY CYLINDER HEAD CONNECTIONS REMOVE CYLINDER HEADS WITH EXHAUST VALVES AND PISTONS WITH STUFFING BOX AND TRANSPORT SAME TO WORKSHOP.

A) DISCONNECT AND REMOVE ALL CYLINDER HEAD MOUNTINGS. DISMANTLE CYLINDER HEADS AND SEPARATE THEM FROM COOLING JACKETS. THROUGHLY CLEAN CYLINDER HEADS AND COOLING JACKET SURFACES. RENEW ALL “O”RINGS AND ASSEMBLE CYLINDER HEADS AND COOLING JACKETS. CYLINDER HEAD COOLING SURFACES TO BE PRESSURE TESTED TO 06 KGS / CM2 AND SHOWN TO 2EO & CEO.ALL CYLINDER HEAD MOUNTINGS POCKETS AND SEATS TO BE THROUGHLY CLEANEDAND SEATS TO BE LAPPED.

B) CYLINDER AIR STARTING V/VS AND INDICATOR VALVES TO BE O’HAULED AND TESTED TO PROOVE SATISFACTORY OPERATION AND SHOWN TO 2EO / CEO. CYLINDER HEAD RELIEF V/VS TO BE PRESSURE TESTED TO CORRECT OPENING PRESSURE AS MARKED ON FLANGE OF THE HOUSING & SHOWN TO 2 E/O & CEO. INDICATOR V/VS LEAK TEST TO BE SHOWN TO 2EO / CEO. AFTER THE SURVEYORS & SUPTD. APPROVAL ALL THE MOUNTINGS TO BE ASSEMBLED & FITTED BACK IN PLACE AS THE ORIGINAL. FUEL VALVE NOZZLE AREA TO BE CHECKED FOR CORROSION ATTACK.

DISMANTLE THE EXHAUST V/VS COMPLETELY. THROUGHLY CLEAN ALL PARTS & SHOWN TO SURVEYORS &SUPTD. RENEW ALL WORN / DEFECTIVE PARTS & ALL SEAL RINGS FROM SHIP’S SPARES. CHECK THE VALVE & SEATS. THROUGHLY CLEAN EXHAUST V/VS COOLING WATER SURFACES & PRESSURE TEST TO 06 KGS / CM2 IN PRESENCE OF SURVEYORS & SUPTD. AFTER THEIR APPROVAL ASSEMBLE THE EXHAUST VALVES AS THE ORIGINAL AND FIT THE EXHAUST VALVES IN PLACE ON CYLINDER HEADS & TIGHTEN THE NUTS HYDRAULICALLY AT 1500 BARS.ALL CYLINDER HEAD ASSSEMBLIES TO BE TRANSPORTED BACK ONBOARD.

A) ALL UNITS CYLINDER LINERS TO BE REMOVED AS PER MAKER’S INSTRUCTIONS & TRANSPORTED TO WORKSHOP. ALL LINER SURFACES & SCAVENGE PORTS TO BE THROUGHLY CLEANED. L.O.QUILL PASSAGES TO BE THROUGHLY BLOWN THROUGH WITH COMPRESSED AIR & CLEARED. LINERS TO BE CALIBRATED AND READINGS TO BE RECORDED. CARRY OUT DYE CHECK ON ALL CYLINDER LINERS IN WAY OF TOP AND BOTTOM L.O.GROOVES FOR DETECTING CRACKS & SHOWN TO SURVEYORS & SUPDT.ALL L.O.QUILLS TO BE O’HAULAND & FUNCTION TESTED IN PRESENCE OF 2EO / CEO. ALL LINERS TO BE TRANSPORTED BACK ONBOARD ALL JACKET SURFACES TO BE THROUGHLY CLEANED & DYE TEST TO BE CARRIED OUT IN PRESENCE OF SURVEYORS & SUPDT. ALL LINER CALIBRATIONS TO BE SHOWN TO SURVEYORS & SUPTD. & AFTER THEIR APPROVAL ALL LINERS TO BE BOXEDBACK IN PLACE AS THE ORIGINAL USING NEW SEAL RINGS.(SHIP’S SUPPLY).L.O. QUILLS TO BE FITTED BACK IN PLACE AS THE ORIGINAL.

B) HONNING TO BE CARRIED OUT AS PER MAKERS GUIDANCE. LINER PORT EDGES TO BE SMOOTHENED

DISMANTLE ALL PISTONS AND STUFFING BOXES. ALL PARTS TO BE THROUGHLY CLEANED AND EXAMINED. D.P.TESTS TO BE CARRIED OUT ON PISTON CROWNS AND PISTON SKIRTS AND CHECKED FOR FRETTING AND CRACKS AS PER MAKER’S INSTRUCTIONS. CHECK THE PISTON CROWN WEAR DOWN BY WEAR DOWNGAUGE PISTON RING GROOVES TO BE THROUGHLY CLEANED.GROOVES & PISTON RINGS TO BE CALIBRATED & READINGS TO BE RECORDED.ALL PARTS TO BE PRESENTED TO SURVEYORS & SUPTD & AFTER THEIR APPROVAL ASSEMBLE ALL PISTONS AS PER MAKER’S INSTRUCTIONS. ALL PISTONS TO BE PRESSURE TESTED TO 7 BARS IN PRESENCE OF SURVEYORS & SUPTD. PISTON ROD TO BE GAUGED. PISTON ROD STUFFING BOX ALL PARTS TO BE THROUGHLY CLEANED. STUFFING BOX CALIBRATIONS TO CHECK AND RECORD THE READINGS. ALL WORNOUT / DAMAGED PARTS TO BE RENEWED FROM SHIP’S SPARES.STUFFING BOXES TO BE ASSEMBLED ON PISTON RODS USING NEW SEAL RINGS. PISTON RODS ALONG WITH STUFFING BOXES TO BE TRANSPORTED BACK ONBOARD.

CROSS HEAD SURFACES TO BE CLEANED THOROUGHLY. LOWER THE PISTONS IN PLACE ALONG WITH THE STUFFING BOXES AND TIGHTEN THE NUTS AS PER MAKER’S INSTRUCTIONS.STUFFING BOX BOLTS TO BE TIGHTENED. ALL LASHINGS TO BE RESTORED. LOWER THE CYLINDER HEADS ALONG WITH EXHAUST V/VS AND TIGHTEN THE NUTS. ALL CYLINDER HEAD CONNECTIONS TO BE RESTORED BACK AS THE ORIGINAL. C.W. TO BE TRIED OUT AND ENSURE NO LEAKAGES. F.O. & L.O. TO BE TRIED OUT. F.O.LINES TO BE PRIMED. CONSIDER RENEWAL OF 12 NOS OF EXHAUST MANIFOLD BOLTS. EXHAUST MANIFOLD LAGGINGS TO BE RENEWED AS THE ORIGINAL.

ALL UNITS UNDER PISTON AND SCAVENGE SPACES TO BE THROUGHLY CLEANED. EXHAUST MANIFOLD INSPECTION DOORS TO BE OPENED UPFOR CLEANING. ENTIRE EXHAUST MANIFOLD TO BE THROUGHLY DECRBONISED & CLEANED USING WIRE BRUSHES & SHOWN TO CEO / 2EO. TURBO CHARGER INLET GRIDS TO BE THROUGHLY CLEANED & INSPECTED FOR WEAR DOWN / DAMAGE. SAME TO REPAIR. ALL UNDER PISTON & SCAVENGE SPACES TO BE INSPECTED. EXHAUST MANIFOLD INSPECTION DOORS & UNDER PISTON & SCAVENGE SPACE DOORS TO BE BOXED BACK AS THE ORIGINAL USING NEW JOINTS. CONSIDER RENEWAL OF 24 NOS BOLTS / STUDS WITH NUTS OF ASSORTED SIZES. C/CASE TO BE THROUGHLY CLEANED & INSPECTED. C/CASE DOORS TO BE BOXED BACK AS THE ORIGINAL USING NEW RUBBER RINGS

M.E. TO BE TURNED ON TURNING GEAR WITH L.O. PUMP RUNNING FOR SOME TIME. SATISFACTORY RUNNING TRIAL TO BE GIVEN TO THE SATISFICATION OF SHIP’S STAFF.

MAIN ENGINE STARTING AIR DISTRUBOTOR AND MAIN MASTER VALVE TO O/HAUL (SPARE SHIP'S SUPPLY).

M/E CRANK CASE RELIEF DOOR TO O/HAUL & TO BE PRESENTED FOR SURVEY.

QUOTE SEPARATELY FOR THE FOLLOWINGS:

D). CONSIDER 07 NOS V/V SPINDLES/SEAT AND CAGE TO REPAIR WITH NIMONIC COATING.

F).CYLINDER COVERS COMBUSTION SPACES TO CHECK FOR CRACKS WITH D.P. TEST – 07 NOS

E 25010: MAIN BEARING & JOURNAL FOR MAIN ENGINE (SURVEY)

MEASURE AND RECORD M.E.CRANK SHAFT DELECTIONS BEFORE COMMENCEMENT OF WORK & AFTER COMPLETION OF WORK (AFLOAT)

REMOVE L.O.CONNECTIONS OF SAID BEARING'S AND MEASURE & RECORD MAIN BEARING TOP CLEARANCES USING BRIDGE GAUGE BEFORE COMMENCEMENT OF WORK AND AFTER THE COMPLETION OF WORK. DISMANTLE AND REMOVE MAIN BEARINGS TOP HALF OF BEARING CAP. REMOVE TOP HALF OF THE BEARING SHELL. WITHDRAW LOWER HALF OF BEARING SHELLS.

THOROUGHLY CLEAN ALL PARTS. MAIN JOURNAL TO BE GAUGED AT DIFFERENT PLACES AND READINGS TO BE RECORED. ALL PARTS TO BE PRESENTED TO THE SURVEYORS AND AFTER THEIR APPROVAL ALL PARTS TO BE ASSEMBLED AND FITTED BACK IN PLACE WITH PROPER CLEANLINESS; LUBRICATION REQUIRED AND TIGHTENED HYDRAULICALLY AS THE ORIGINAL. ALL CALIBRATION READINGS TO BE SUBMITTED.

E 25011 : BOTTOM END BEARINGS/ CRANK PINS AND WEBS FOR MAIN ENGINE (SURVEY)

MEASURE AND RECORD SAID CRANK PIN BEARINGS CLEARANCES BEFORE COMMENCEMENT OF WORK AND AFTER THE COMPLETION OF WORK. LOOSEN AND REMOVE THE NUTS OF CRANK PIN BEARIGS STUDS HYDRAULICALLY. LOWER THE BOTTOM BEARING CASE INSIDE THE CRANK CASE FOR BEARING SHELL INSPECTION. REMOVE THE BEARING CAP ALONG WITH BEARING SHELL FROM THE CRANCASE.

MOUNT THE SUPPORTS FOR THE GUIDE SHOES ON THE CROSS HEAD GIUDES. TURN DOWN THE CRANK UNTILL THE CROSSHEAD SHOES RESTS ON THE SUPPORTS. SWING OUT THE CONNECTING ROD SO THAT THE BEARING SHELL AND CRANK PIN CAN BE CLEARLY SEEN AND INSPECTED.

THROUGHLY CLEAN ALL PARTS. CRANK PIN TO BE GAUGED AT DIFFERENT PLACES & READINGS TO BE RECORED. ALL PARTS TO BE PRESENTED TO THE SURVEYORS & AFTER THEIR APPROVAL ALL PARTS TO BE ASSEMBLED AND FITTED BACK IN PLACE WITH PROPER CLEANLINESS LUBRICATION REQUIRED AND TIGHTENED HYDRAULICALLY AS THE ORIGINAL. ALL CALIBRATION READINGS TO BE SUBMITTED.

E 25012 : X - HEAD BEARINGS PINS AND GUIDES FOR MAIN ENGINE (SURVEY)

MEASURE AND RECORD SAID CROSS HEAD BEARINGS CLEARANCES BEFORE COMMENCEMENT OF WORK & AFTER THE COMPLETION OF WORK. LOOSEN AND REMOVE TOP END BEARING CAPS AND SHELLS ( FWD / AFT ). SWING OUT THE CONNECTING ROD FOR THE INSPECTION OF BOTTOM BEARING SHELL

THOROUGHLY CLEAN ALL PARTS. CROSS HEAD PIN TO BE GAUGED AT DIFFERENT PLACES & READINGS TO BE RECORED. HANG THE BOLTS FOR SURVEY. ALL PARTS TO BE PRESENTED TO THE SURVEYORS AND AFTER THEIR APPROVAL ALL PARTS TO BE ASSEMBLED & FITTED BACK IN PLACE WITH PROPER CLEANLINESS LUBRICATION REQUIRED AND TIGHTENED HYDRAULICALLY AS THE ORIGINAL. ALL CALIBRATION READINGS TO BE SUBMITTED.

E 25013 : M.E. CAMSHAFT DRIVES & ROLLER GUIDES (SURVEY).

ALIGNMENT TO BE CHECKED BETWEEN CAMSHAFT & CHAIN WHEEL SHAFT AT THE DRIVE END COUPLING & BETWEEN EACH SECTION AT SUBSEQUENT FLANGE COUPLINGS.

MOMENT COMPENSATOR CHAIN TO BE ADJUSTED AND TIGHTENED AS REQUIRED WITH THE TWO FLY WEIGHTS IN A VERTICAL DOWNWARD POSITION.

AFT CHAIN TO BE TIGHTENED AS PER MAKERS INSTRUCTIONS.

ADJUSTMENT/TIMING OF CONTROL GEAR TO BE DONE AS PER MAKERS INSTRUCTIONS.

TO CHECK ALL UNITS EXHAUST V/V AND FUEL P/P ROLLER GUIDES AND RECTIFY FAULTS. CLEARANCES OF ROLLER/ BUSHING/ SHAFT PIN TO CHECK (MAX. 0.5MM). REVERSING LINK FOR FUEL P/P ROLLER GUIDE TO CHECK FOR CRACKS BY DP TEST. FUEL P/P GUIDE BLOCK SCREWS TO CHECK AND CHANGE & MISSING ONES TO RENEW.

GUIDE BARS ON DRIVE CHAIN AND MOMENT COMPENSATOR CHAIN TO CHECK AND RENEW.(SPARE SHIP SUPPLY)

A) REVERSING LINKS TO CHECK FOR CRACKS WITH MPI TEST. FUEL PUMP ROLLER GUIDES TO CHECK FOR CRACKS WITH MPI TEST.

B) ROLLER GUIDES TO DISMANTLE. NEW ROLLER GUIDE TO FIT WITH NEW REVERSING LINKS. (SPARES OWNER SUPPLY).

TIGHTNESS OF CAM SHAFT COUPLING BOLTS (8 NOS.) TO CHECK FOR TIGHTNESS (700 NM) FOR CHECKING CHAIN CASING COVER HAVING 60 NOS. BOLTS TO REMOVE

REVERSING GEAR TO BE PRESENTED FOR SURVEY.

E 25014 : PRE-TENSIONING STAY BOLTS / TIE BOLTS FOR MAIN ENGINE (SURVEY )

TIE BOLTS TO BE CHECKED FOR PRETENSION. HYDRAULIC DISMANTLING PRESSURE 1400 - 1650 BAR. D1 - 1500 BAR D2 - 0.4 MM

STAY BOLTS TO BE RETIGHTENED IN PAIRS; WORKING FROM THE MIDDLE TOWARDS ONE END AND THEN FROM THE MIDDLE AGAIN TOWARDS THE OTHER END.

HYDRAULIC PRESSURE TO BE MAINTAINED AT D1 AND STAY BOLT NUTS RETIGHTENED WITH A TOMMY BAR MAKING SURE NUTS BEARING AGAINST CONTACT FACE WITH A FEELER GUAGE.

AFTER COMPLETING ALL BOLTS THE FIRST PAIR OF STAY BOLTS TO BE TIGHTENED TO 10% BELOW D1 AND NUT TO BE CHECKED FOR LOOSENESS. IF FOUND LOOSE ALL STAY BOLTS TO BE TIGHTENED ONCE AGAIN. IF NOT LOOSE THE FIRST PAIR TO BE TIGHTENED TO D1.

D2 TO BE CHECKED BETWEEN CONTACT FACE OF LOWERMOST NUT AND BEDPLATE.

E 25015 : HYDRAULIC ACTUATORS FOR M.E. EXH. V/V (7 NOS.) - (SURVEY)

ALL 7 UNITS INLET PIPES; DRAIN PIPES & HIGH PRESSURE PIPES TO BE DISMOUNTED.

MOUNTINGS FOR INDICATOR DRIVES TO BE RELEASED.

ROLLER TO REST ON BASE CIRCLE OF CAM .

HOUSING AND PISTON TO BE LIFTED (PISTON TO BE RELEASED FROM BAYONET LOCK BY DISMANTLING LOCKING PLATE AND TURNING BY 90 DEG.). PISTON RINGS TO BE RENEWED. MINIMUM THICKNESS = 3.8MM

OIL CYLINDER LINER TO CALIBRATE . MAXIMUM DIA = 71.2 MM

SAFETY V/VS AND NON RETURN V/VS TO BE OVERHAULED ALL ITEMS TO FIT BACK IN GOOD WORKING ORDER. HYDRAULIC ACTUATOR TIGHTENING TORQUE = 300Nm. LOCKING PLATE TIGHTENING = 10 NM ABOVE TO PRESENTED FOR SURVEY.

E 25016 : FUEL PUMPS FOR MAIN ENGINE (SURVEY)

ALL UNITS FUEL PUMPS TIMINGS TO BE CHECKED AND RECORDED. DEVIATION FROM ORIGINAL SETTINGS TO BE CORRECTED.

ALL UNITS SUC. V/V AND PUNCTURE V/V TO BE OVERHAULED AND FITTED BACK. SEAL RINGS TO BE RENEWED (SHIP SUPPLY).

ALL FUEL P/P SHOCK ABSORBERS TO BE DISMANTLED; CHECKED FOR CRACKS AND BOXED BACK.

UNIT NOS. 1 2 3 4 5 6 AND 7 FUEL P/PS TO BE DISMANTLED; PRESENTED FOR SURVEY AND BOXED BACK WITH NEW SEAL RINGS. NEW BARREL & PLUNGERS TO FIT (SHIP SUPPLY). FUEL P/P TIMINGS TO BE CHECKED/ADJUSTED THEREAFTER.

ALL UNITS REVERSING MECHANISM TO BE OVERHAULED. CLEARANCES BETWEEN ROLLER GUIDE AND GUIDE PLATE; GUIDE WAY AND PIN OF REVERSING LINK TO BE CHECKED IN AHEAD AND ASTERN POSITION.

FUEL PUMP ROLLER GUIDE ALLEN BOLT TIGHTNESS AND DOWEL PIN CONDITION TO BE CHECKED.

EXHAUST VALVE TIMING TO CHECK.

PUMP NO. - 1 2 3 4 5 6 AND 7 TO BE PRESENTED FOR SURVEY.

E 25017 : MAIN ENGINE CYLINDER LUBRICATORS (SURVEY)

ALL 7 UNITS CYLINDER LUBRICATORS TO REMOVE FROM PLACE AND CLEANED THOROUGLY WITH KEROSENE AND FLUSHED WITH LUB OIL.ALL LINE FILTERS TO CLEAN. LOW LEVEL ALRM FLOATS OPERATION TO CHECK .

ALL CYLINDER PUMPS OPERATION TO CHECK AND REPAIR.

TIMINGS OF CYLINDER OIL ADMISSION TO BE CHECKED AS PER MAKER’S INSTRUCTION.

ADJUSTMENT OF CYLINDER LUBRICATOR TO BE CARRIED OUT.

CHECK IF THE COUPLINGS BETWEEN THE CYLINDER LUBRICATOR HAVE BEEN LOSSENED THEIR SCREWS MUST BE RETIGHTENED WITH A TORQUE SPANNER TO 90 Nm.

LCD FUNCTION OF LUBRICATORS TO CHECK.

SATISFACTORY TRIAL TO BE SHOWN TO CEO/SUPDT.

E 25018 : MAIN ENGINE TOP BRACING BEAM (SURVEY)

RELATIVE MOVEMENT BETWEEN TOP BRACING AND FASTENING PLATE TO BE MEASURED WITH A DIAL GUAGE OR VIBROGRAPH WITH HIGH GEAR RATIO DURING SEA TRIAL.

WHEN ENGINE HAS REACHED ITS WORKING TEMPERTURE THE TWO BOLTS FOR FRICTIONAL ASSEMBLY ARE TO BE LOOSENED & RETIGHTENED AFTER ONE MINUTE.

E 25019 - M.E. AIR COOLER AND SCAVENGE AIR SYSTEM (SURVEY)

AIR COOLER TUBE NEST TO BE PULLED OUT REMOVED & TRANSPORTED TO W/SHOP TO TAKE DUE CARE OF FINS. TUBE NESTS TO BE CHEMICALLY CLEANED AT RECOMMANDED TEMPERATURE AS PER CHEMICAL MAKER’S RECOMMANDATIONS. AFTER CHEMICAL CLEANING THE TUBE NEST ELEMENTS TO BE THROUGHLY WASHED & CHEMICALS NEUTRALISED & THEN BLOWN THROUGH WITH COMPRESSED AIR. PRESSURE DROP ACROSS ( AIR SIDE ) TO BE SHOWN TO CEO / 2EO IN WORKSHOP.

THE SIDE COVERS AND END COVERS TO BE THROUGHLY CLEANED AND INSPECTED. COATINGS TO BE CHECKED. DAMAGED COATINGS TO BE REPAIRED AS THE ORIGINAL.

AIR COOLERS ENGINE SIDE SURFACES TO BE THOROUGHLY CLEANED CHIPPED & PRIMER TO BE APPLIED. NON RETURN FLAP V/VS (6 NOS) IN SCAVENGE AIR RECEIVER TO BE O’HAULED & FITTED BACK IN PLACE AS THE ORIGINAL AND PROVE POSITIVE CLOSING.

AIR COOLER TUBE NESTS TO BE BROUGHT BACK ONBOARD TAKING DUE CARE OF FINS AND FITTED BACK IN PLACE AS THE ORIGINAL USING NEW JOINTS & SEAL RINGS.

CONSIDER RENEWAL OF 12 NOS STUDS & NUTS OF ASSORTED SIZES.

AIR COOLER WATER SIDE TO BE PRESSURE TESTED AT 6.0 KG / CM2 PRESSURE AND SHOWN TO CEO/2EO.

AUX. BLOWER BUILT IN BUTTERFLY VALVES TO BE OVERHAULED AND FITTED BACK AS ORIGINAL.

MANOMETER TO O’HAUL DEFECTIVE PARTS TO RENEW & FIT BACK WITH LIQUID & MADE OPERATIONAL.

WATER MIST CATCHER FOR AUTO DRAINING THE WATER FROM SCAVENGEING SYSTEM IS MAL FUNCTIONING (SCAVENGE AIR LEAKS CONTINUOUSLY TO DRAIN LINE) SAME TO OVER HAUL.

E 25023: MAIN THRUST BEARING & THRUST SHAFT (SURVEY).

CHECK & NOTE DOWN THRUST BEARING CLEARANCE BEFORE AND AFTER THE WORK

TO REMOVE FORWARD & AFT THRUST BLOCK COVERS. THRUST SEGMENTS AND THRUST COLLARS OUT FROM CRANK CASE. ALL PARTS TO BE THROUGHLY CLEANED AND PRESENTED TO SURVEYORS FOR INSPECTION. AFTER SURVEYOR’S APPROVAL ALL PARTS TO BE BOXED BACK AS THE ORIGINAL

E 25025: RE-TIGHTENING OF HOLDING DOWN BOLTS & END CHOCK BOLTS FOR MAIN ENGINE (SURVEY)

HOLDING DOWN BOLTS TIGHTNESS TO BE CHECKED (USING HYDRAULIC JACK MARKED WITH HOLDING DOWN BOLTS) BY RAISING THE HYDRAULIC PRESSURE SLOWLY WHILE CONSTANTLY ATTEMPTING TO LOOSEN THE NUT WITH THE TOMMY BAR. THE OIL PRESSURE INDICATED BY THE PRESSURE GAUGE WHEN THE NUT COMES TO LOOSE (LOOSENING PRESSURE) IS TO BE RECORDED IN THE CHECKING TABLE. THE BOLTS ARE TIGHTENED TO THE NORMAL TIGHTENINIG PRESSURE THEREAFTER. TIGHTENIG PRESSURE 1500 BAR.

END CHOCK BOLTS TIGHTNESS TO BE CHECKED (USING HYDRAULIC JACK MARKED WITH EPOXY CHOCKS) BY RAISING THE HYDRAULIC PRESSURE SLOWLY WHILE CONSTANTLY ATTEMPTING TO LOOSEN THE NUT WITH THE TOMMY BAR. THE OIL PRESSURE INDICATED BY THE PRESSURE GAUGE WHEN THE NUT COMES TO LOOSE (LOOSENING PRESSURE) IS TO BE RECORDED IN THE CHECKING TABLE. THE BOLTS ARE TIGHTENED TO THE NORMAL TIGHTENINIG PRESSURE THEREAFTER. TIGHTENIG PRESSURE – 1500 BAR.

END CHOCK BOLTS TIGHTNESS TO BE CHECKED USING HYDRAULIC JACK MARKED WITH END CHOCKS AND RECORDED. THE BOLTS ARE TIGHTENED TO THE NORMAL

TIGHTENINIG PRESSURE THEREAFTER. TIGHTENIG PRESSURE – 1500 BAR.

IMMEDIATELY AFTER FINISHING OF CHECKING OF THE LOOSENING PRESSURES OF THE HOLDING DOWN BOLTS AND THE RETIGHTENING OF THE HEIGHT OF THE EPOXY SUPPORTING CHOCKS ARE TO BE CHECKED. WARNING: ACCIDENTAL APPLICATION OF LARGER JACK (MEANT FOR THE END CHOCK BOLTS) ON THE HOLDING DOWN BOLTS WOULD CAUSE SERIOUS OVER-STRESSING OF EPOXY SUPPORTING CHOCKS.

E 25074 : M.E. F.O. AUTO BACK FLUSHING FILTERS.

SYSTEM TO BE THROUGHLY CHECKED. ALL COMPONENTS MUST BE CHECKED & SERVICED. ALL DEFECTIVE COMPONENTS TO BE RENEWED

MAIN ENGINE BOTH F.O. AND L.O. AUTO BACK FLUSHING FILTERS TO BE OPENED UP. FILTER CANDLES TO BE CLEANED AND BOXED BACK AS THE ORIGINAL.

AUTO CLEANING CYCLE OPERATION & MANUAL CHANGE OVER & CLEANING OPERATION TO CHECK & PROVE.

COCHIN MARINE ENGINEERING (BID ID -881008)