Propeller Shaft Routines of MV Vishva Vijetha, on Turnkey Basis

Amount

PROPELLER AND TAIL SHAFT (SURVEY): TYPE/CAPACITY/DETAILS - KEYLESS; PROPELLER - 4 BLADES; DIA- 6000 MM. MATERIAL : NI-AL-BRONZE CU3.

DETAILS OF THE P/PS AS FOLLOWS: NOTE: The entire job should be carried out on turnkey basis including mavhining build up etc are covered in vendors scope.

REMOVE ROPE GUARDS,REFIT BACK AFTER COMPLETION OF ROUTINES

MEASURE AND RECORD PROPELLER DROP KEEPING BLADE MARKED "A "ON TOP IN PRESENCE OF CEO & OWNERS REP (CONSIDER 2 READINGS INTIAL AND FINAL);

PROPELLER AND BONNET TO BE SCRAPPED FREE FROM THE BARNACLES.BREAK PROPELLER CEMENT FAIRWEATHER CONE(BONNET) TO OPEN UP & OLD TALLOW TO REMOVE. AFTER REPIAR;PROPELLER CONE TO BE FITTED BACK WITH FRESH TALLOW; 200 KG TALLOW (VENDOR SUPPLY).

PROPELLER TO BUFF AND SURFACE FINISH OF BLADES SHALL HAVE A ROUGHNESS LESS THAN 6 MICRONS FROM 0.3 RADIUS TO TIP OF BLADES. BLADE ROOTS AND TIPS TO CHECK FOR CRACKS USING DYE PENETRANT.

PROPELLER NUT LOCKINGS TO REMOVE. PROPELLER NUT REMOVE AS PER MAKER'S INSTRUCTION HYD PRESSURE TO RECORD.NUT TRAVEL FROM ORIGINAL POSITION TO RECORD.REMOVE PROPELLER AS PER MAKER'S INSTRUCTIONS AFTER REPAIR AND SURVEY; PROPELLER TO BE PUSHED-IN HYDRAULICALLY.

MARK COUPLING NUTS AND BOLTS ON BOTH SIDE OF INTERMEDIATE SHAFT.SLACKEN AND REMOVE COUPLING NUTS & BOLTS. QUOTE TO BE INCLUSIVE OF FABRICATION COST OF ONE COUPLING BOLT WITH MEATERIAL CERTIFCATE TO THE SATISFACTION CALSS SURVEYORS.

REMOVE TOP HALVES OF INT.SHAFT BEARINGS.LIFT THE INT.SHAFT ON CENTRE LINE USING CHAIN BLOCKS.SHIFT THE INT.SHAFT TO PORT SIDE AND HOLD THE SAME IN PLACE IN BY MEANS OF WIRE ROPE ARRANGEMENTS. PREPARE SHAFT FOR SURVEY ON COMPLETION CARRY OUT SURVEYORS RECOMMENDATION.

REMOVE INT.SHAFT BEARINGS BOTTOM HALVES FOR THE SURVEY AS PER SURVEYOR INSTRUCTIONS.

KEEP THE TROLLEY WITH WOODEN BOX IN POSITION BELOW THE TAIL SHAFT.FIT THE WITHDRAWING EYEBOLT TO THE FORWARD FLANGE OF TAIL END SHAFT.

USING THE ROLLER UNIT,EYE PLATE & CHAIN BLOCK,WITHDRAW THE TAIL END SHAFT ON TROLLEY. WHILE WITHDRAWING SHAFT INTRODUCED 2ND TROLLEY WITH WOODEN BLOCK AT CONVENIENT POSITION.

AFTER THE WITHDRAWAL OF TAIL END SHAFT THOROUGHLY CLEAN TAPPER AND THREADED PORTION OF TAILEND SHAFT.TAPER TO BE CHECKED OF ANY CRACKS BY DYE PENERATION METHOD/MAGNAFLUX AND SHOWN TO CLASS SURVEYOR.SCOPE INVOLVES ARRANGING DP TEST KITS AND NDT QUALIFIED TECHNICIAN.

BOTH FWD AND AFT SIMPLEX SEALS TO REMOVE FROM PLACE AND TAKEN TO SHOP. BOTH SEAL BOXES TO BE ASSEMBLED WITH NEW SEALING RINGS(SHIP SUPPLY). BOTH SIMPLEX SEAL BOXES TO BE FITTED BACK IN PLACE.JOB INVOLVES ARRANGING CONSUMABLES BY VENDOR

BOTH CHROME LINERS TO INSPECT & CALIBERATE . IF NEEDED THE INNER AND OUTER EDGES OF CHROME LINER TO BE SKIMMED BY MAINTAING MANUFACTURER TOLERANCES IN CONCURRENCE WITH SURVEYORS. RECORDED READINGS TO SUBMIT.IF CHROME LINERS ARE WORN OUT BEYOND ACCEPTABLE LIMITS THEN SAME BE RENEWED WITH SHIP SUPPLIED CHROME LINER.JOB INVOLVES MACHINING OF LINERS BY VENDOR

AFTER SUCCESFUL COMPLETION OF INSPECTION / 10 YEARLY SURVEY ON TAILEND SHAFT; INTERMEDIATE SHAFT; STERN TUBE BEARING /HOUSING TAILEND SHAFT TO BE REPOSIOTIONED / REFITTED IN REVERSE ORDER,PROPELLER TO BE PUSHED-IN HYDRAULICALLY ON THE TAIL END SHAFT TAPPER AS PER MAKER'S INSTRUCTIONS.PROPELLER TRAVEL ON THE SHAFT AND TOTAL PRESSURE APPLIED TO BE RECODED.JOB INVOLVES ARRANGING TOOLS VIZ,.,POWERPACKS,HYDRAULIC JACKS, CHAIN BLOCKS,MEASURING INSTRUMENTS(CALIBRATED) BY THE VENDOR

INT.SHAFT BEARING BOTTOM HALVES WITH PORTABLE SEATS TO BE FITTED BACK IN PLACE.REMOVE ANY SHARP EDGES ON THE COUPLING BOLT HOLES.CONSIDER REAMING OF SIX NOS COUPLING BOLT HOLES. INT.SHAFT TO BE LOWERED BACK IN PLACE ON TOP OF BEARING BOTTOM HALVES.COUPLING BOLTS TO BE FITTED BACK AND BEARING TOP HALVES BOXED BACK IN PLACE.SHAFT BEARNING TO BE REALIGNED IN POSITION.COUPLING BOLTS LOCKING TO SECURE.ALL GAURDS AND FLOORING,CUT FOR FACILITATING THE JOBS,TO BE FITTED BACK ON COMPLETION OF JOB.

OIL TO BE TAKEN IN STERN TUBE (OIL SHIP SUPPLY). INTACTNESS OF SEALS TO BE CHECKED UNDER STATIC HEAD FOR ATLEAST 48 HRS. IF ANY ANAMOLIES TO BE ATTENDED WITHOUT ANY EXTRA COST TO OWNER5.OIL FILLING TO BE CARRIED OUT BY THE VENDOR.

POKER GAUGE READINGS TO CHECK & RECORD.

IF PROPELLER BLADES ARE FOUND TO BE DAMAGED ,THE SAME WILL BE RECTIFIED BY OEM/YARD.LIFTING AND SHIFTING ARRANGEMENT OF BLADES FROM DOCK /JETTY/TRAILER TO BE ARRANGED BY VENDOR

Asha Engineering Works