CPP AND SHAFTING JOB INCLUDING LOS - RM.0833

YARD SERVICE FOR CPP AND SHAFTING JOB INCLUDING LOS (PORT & STARBOARD) FOR THE BELOW SCOPE OF WORK. EQUIPMENT DETAILS CPP & SHAFTING (PORT & STBD) INCLUDING LOS MAKE/OEM – SCHOTTEL, GERMANY MODEL: SCP 109/5-XG Detailed Work Scope Removal, inspection and reinstallation of complete shafting systems post repair/renewal including but not limited to propellers, shafts, couplings, bushes and carriage, shaft seal, OD box etc. Job is inclusive of following details

M 1 Damages observed in 03 Propeller blades on both Port and Stbd propellers (Blade No1. Uprooted from HUB, Blade No.02 damaged upto 60 %, Blade No. 03 Chipped Off from leading edge). All Propeller blades, propeller shafts, OHSN coupling and associated underwater fittings are to be cleaned and visually inspected for extent of damage.

M 2 Hydraulic Oil leakage observed from both propeller hub and propeller blades found damaged. Damaged propeller blades to be replaced (Blades CG supply) and Dynamic balancing to be carried out as per joint inspection/class surveyor report and recommendations of OEM/PAC firms.

M 3 Check shaft seal rings work well and installation position for excess wear or deformation. In way job includes functional checks of shaft inflatable seals in association with class surveyor.

M 4 Check wear down condition of mating ring. If wear down on sliding surfaces is over 0.5 mm in depth it should be reconditioned by lathe.

M 5 Dismantle, inspection and refit the propeller blades and Hub.

M 6 Check the abrasion and any damages in the oil distributer box.

M 7 Check condition of shaft surface after removal epoxy coating (prior approval shall be taken for removal of coating). Re coating shall be done using CELLOFLEX M /Equivalent as per standard procedure.

M 8 Check clearances between hub and blade carriers by feeler gauges post fitment.

M 9 Check CPP blade functional check and zero pitch checking with blade head, local, MCR and Bridge post fitment.

M 10 Clearance readings of Port and Stbd stern tubes, ‘A’ and ‘P’ brackets bearings are to be taken with poker gauges immediately after docking and immediately prior to undocking with class surveyor. A report is to be rendered giving comparative assessment of clearance readings w.r.t initial readings. Report is to be duly vetted by CGRPT staff/ OEM / Class surveyor. Assistance for Bearing replacement if clearance more than limit value. Bearing CG supply.

M 11 The propulsion shafts along with associated systems/components to be removed and dismantled for carrying out repairs/replacements. The scope of work includes following: (a) Removal of eddy cone, eddy plates, rope guards, Plummer block bearings, bulkhead seal assembly, sleeve couplings, all accessories and associated sensors fitted on shaft line (e.g torsion meter, shaft grounding strip etc). (b) Both sides (PORT and STBD) shafts to be withdrawn fully. True shaft line to be established by undertaking Line of Sight taking gearbox output flange as master reference as per the QAP for shaft line repairs under supervision of Class surveyor (3 times to be considered). (c ) Vendor shall Provide QAP for entire shafting job including LOS and then proving of CPP in order to submit to the class surveyor. (d) Break chock fast and undertake fresh chock fasting wherever applicable to achieve established true shaft line (Chockfast – Yard Supply). (e) Insert and reassemble shaft lines including flange coupling. Undertake necessary alignments. (f) On assembly of shaft line, associated components/subassemblies and CPP system, complete CPP system to be flushed out and refilled with fresh oil (oil CG supply). (g) Alignment of intermediate shaft and adjustment of shaft loading as per OEM protocol. (h) STW of propulsion system including shaft line in association with ICG. All in-way jobs for proving of shafting and CPP system included. (i) Vendor shall consider DP test/MPI of propeller/shafts by certified person as per class rule.

Materials required for CPP and Shafting Job including LOS

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