Propeller shafting, Rudder and Rudder Stock, Bow Thruster works on MFV Mastya Drushti

Amount

MFV MATSYA DRUSHTI SR 22028/408/409/410 Propeller shafting,Rudder and Rudder Stock,Bow Thruster works

Propeller shafting works - Rope guards to be removed,cleaned and refitted after completion of job.propeller drop to measure before and after renewal of seals.propeller's blades to buff/polish and surface finish of blades to carry out.apply grease/varnish.blade roots and tips both sides to check for cracks using dye penetrant test by competent team and shown to MMD surveyor.fwd and aft seals to be removed,replace with new seals and systems to be checked under static head for leakages post assembling of new seals. Propeller Tail shaft to be removed and produced for MMD survey and after completion of survey and necessary repairs, propellers to be fitted back as per maker's procedure, propellers nut to be tightened as per makers procedures and nut to be locked in presence of ships staff, propellers cones to be filled with fresh tallow. Complete withdrawal of tail end shaft by disconnecting of muff couplings,Gear box lifting and both gearbox and main engine couplings, fwd oil seal tank. All fitted bolts to remove from muff coupling,gearbox/ME couplings and gearbox foundation. After withdrawal the tail end shaft to place on support on dock floor safely with all lockings.inspection of tail end shaft cleaning,polishing,calibration of tail shaft and stern tube bushes and required NDT tests to be carried out to fulfil class requirements.chrome liners to be calibrated and machined/skimmed to the size.spares ship supply.stern tube oil drained and after fitment of tail shaft stern tube fresh oil to be taken in the system and recheck for any leakages for 12 hrs before undocking of the vessel. All plugs to be fitted with new copper washers and wire lashed with ss lashing wires.after fitment of tail shaft lower the gearbox in position and alignment to be carriedout on tail shaft to gear box and gear box to main engine.all under water bolts to be cemented,operational trials and sea trials to be attended along with shipstaff.

Rudder and Rudder Stock - Rudder to be removed from its position,cleaned,pressure tested and float coated. Rudder drop, Jumping clearance,bush clearances and pintle bush clearance are to be recorded before and after.Rudder stock and Tiller bearing to be reomved,calibrated and offer to MMD surveyor and ship staff,rudder stock NDT to be carried out,after completion of survey rudder and stock to be fitted back along with new seals.all materials and consumables like rudder seals,grease, fish oil,sealant putty, copper washers,dummy plugs are procurement, supply and fitment in contractor scope. all machining works, hydraulic jacks, certified chain pulleys and slings, required staging, welding and gas cutting works are in contractor scope

Bow Thruster - Bow thruster to be removed and replace defective seals,assembled and fitted back,alignmet to be carried out with motor and satisfactory trials to be showned.Bow thruster blades to be buffed,DP test and varnished,showned to MMD and ship staff, gratings to be removed and refitted.All materials and consumables like,seals,grease, varnish, sealant putty,wrapping sheets,ss lashing wires,ss fasteners, DP test kits are procurement, supply and fitment in contractor scope. all machining works, hydraulic jacks, certified chain pulleys and slings, required staging, welding and gas cutting works are in contractor scope

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