UNDERTAKING REPAIR RATE CONTRACT FOR REPAIR /MAINTENANCE OF REPLENISHMENT/ FUELING AT SEA (RAS/FAS) SYSTEM FOR A PERIOD OF ONE YEAR AND EXTENDABLE UPTO TWO MORE YEARS ONBOARD NAVAL VESSEL

Amount

Maintenance Scheduled For Hydraulics :- Half Yearly Maintenance:- For Hydraulic valves, motors, pumps and actuators :-

Check the individual units, inspect, and subject the same to pressure test and record the same. Per pump / per motor.

Check the individual units, inspect, and subject the same to pressure test and record the same. Per Manifold.

After liquidation of defects, recheck the system. Start the Power pack unit again and run 30 minutes for full working pressure and observe for the above faults and record. Per pump / per motor

After liquidation of defects, recheck the system. Start the Power pack unit again and run 30minutes for full working pressure and observe for the above faults and record. Per manifold.

Check hydraulic oil contamination and oil level.

Flush Oil to NAS 7( including filter elements)

Functional checks for performance of following Manifold blocks:-

Power Unit Manifold block

Pump Filter Manifold Assembly

Neutral By pass Manifold

Saddle Winch brake manifold

Spanwire/highline brake manifold

Inboard saddle winch Manifold

Span wire / Highline antislack Manifold

Antislack manifold assembly

Antislack motor manifold

Inhaul/ Outhaul Brake Manifold

Inhaul/Outhaul Motor Manifold

Sliding Trolley Block Auxiliary Manifold

Inboard Saddle winch manifold

Hydraulic Pumps:- Inspection, testing and recording of following hydraulic pumps for performance onboard :-

Main pumps :

Aux. pumps :

Hydraulic Motors :- Inspection, testing and recording of following hydraulic motors for performance onboard :-

Sliding Trolley Motor HMB 3.9

Midspan Motor HMB 3.2

Span wire Motor HMB 12B

Antislack Motor

Antislack Motor M60F

Inboard saddle motor (Charlym)

Hydraulic Cylinders / actuators:- Carry out functional test for leakages and record :-

Main RAMS ( Ram Tensioner Cylinder)

Antislack Hydraulic Cylinder

Hydraulic Hose assemblies :-

To replace, wherever the hoses wherever weak, damaged or leaking

Anti-Vibration mounts of Hydraulic Power Pack :-

Check and replace if necessary

Fasteners, check & replace if necessary:-

M16, M12, M10, M8& M6

M18, M19, M20, M21,M22 , M23, M24

M27, M28, M29, M30, M31, M32, M33, M34, M35 , M36

Yearly Maintenance:-

Change hydraulic oil and fill new oil by using filtration unit.

Change 'O' rings of flanges/joints wherever leaking.

Change ball valves wherever required.

Change filter elements

Carry out chemical cleaning of the Heat Exchanger - scope of works includes the following activities. (a) Removal of Heat exchanger from Position on ship, (b) Removal of all the plates, (c) Clean all plates with chemical / water, (d) Renew all the seals. (Seal kit to be supplied by NSRY / Ship staff), (e) Refit all the plates, (f) Pressure test the Heat exchanger and check for leakages, (g) Refit Heat exchanger on ship in position

Accumulator gas charging

Weak/ damaged MS Seamless pipes to be replaced. Size up to 30 mm OD pipe.

Replace O rings sizes: ID 10, 18, 22, 26, 28, 30, 38, 42, 50, 58 mm. Copper washers, pipe joints etc. wherever required.

Replace Copper Washers: ¼, ⅜, ½, ¾" & 1" BSP. Wherever required.

Check pipe clamps and replace, wherever necessary. Sizes: OD 20mm , 30 mm 40 mm & 50 mm

Check Clog indicators and service/ replace, as necessary.

Overhauling / setting of Manifold blocks - Work on all the blocks includes the following: (i) Remove the manifold from ship , (ii) Transport manifold to workshop, (iii) Check the manifold on test bed, (iv) Rectify the defects based on the defects, (v) Renew all the rubber parts (seals), (vi) Check the overhauled manifold on the test bed, (vii) Transport the manifold back to the ship, (viii) Check functioning of system onboard ship.

Power Unit Manifold block

Pump Filter Manifold Assembly

Neutral By pass Manifold

Saddle Winch brake manifold

Span wire/highline brake manifold

Inboard saddle winch Manifold

Span wire / Highline antislack Manifold

Antislack manifold assembly

Antislack motor manifold

Inhaul/ Outhaul Brake Manifold

Inhaul/Outhaul Motor Manifold

Sliding Trolley Block Auxiliary Manifold

Inboard Saddle winch manifold

Carryout overhaul of hydraulic pumps for winches. Overhaul to include following:- (a) Decouple pump from electric motor, (b) remove pump and shift to workshop, (c) Check pump's performance on test bed, (d) Dismantle pump and carry out gauging and survey of internal parts, (e) replace spares (supplied by NSRY (Karwar) /ship staff) as required and box up the pump, (f) Test pump on test bed for satisfactory performance, (g) Fit pump back on the ship and take trials, (h) records of all trials to be handed over to the ships staff

P6 Pump

P14 Pump

P24 Pump

Carryout overhaul of hydraulic motors for winches. Overhaul to include following:- (a) Decouple motor from electric pump, (b) remove motor and shift to workshop, (c) Check motor's performance on test bed, (d) Dismantle motor and carry out gauging and survey of internal parts, (e) replace spares as required (supplied by ship staff) and box up the motor, (f) Test motor on test bed for satisfactory performance, (g) Fit motor back on the ship and take trials, (h) records of all trials to be handed over to the ships staff

HMB 3.2 Motor

HMB 3.9 Motor

HMB 12B Motor

Antislack Motor

Antislack Motor M60F

Inboard Saddle Motor

ASD Hydraulic Motor

STBD Hydraulic Motor

Repair / Overhaul of Probe Receiver

Repair /Overhaul of Fuelling Probe

Maintenance Scheduled For Mechanical :- Half Yearly Maintenance :-

Check the condition of wire ropes of all the winches

Prepare record for inspection of wire rope

Check the tightness of all fasteners, replace the fasteners wherever necessary.

Check the clamp of wire ropes on winch

Inspect the Plummer blocks and record the same

Unwind complete wire ropes, clean and apply new grease and rewind

Yearly Maintenance :-

Check the condition of wire ropes of all the winches

Prepare record for inspection of wire rope

Check the tightness of all fasteners, replace the fasteners wherever necessary.

Check the clamp of wire ropes on winch

Inspect the Plummer blocks and record the same

Unwind complete wire ropes, clean and apply new grease and rewind

Replace the Sheaves/Plummer Block wherever required.

Cleaning of complete structural member of winch only and check for DP Test.

Maintenance Scheduled For Electrical:- Half Yearly Maintenance :-

Functional test of all Push Button Switches / Signals and all Indication Lamps of all Control Panels.

Functional test of all Emergency switches of all panels.

Functional test of all Control Panels

Functional test of all load cells and proximity /limit & instrumentation switches

Securing all load cells and proximity & instrumentation switches at various Junction box terminals.

Functional test of RAS FAS Winch Indicator.

Functional test of all Float Switches and Thermostats

Functions test of all filter clogging indicator

Securing all fuses

Functional test of all solenoid valves

Yearly Maintenance :-

Functional test of all Push Button Switches / Signals and all Indication Lamps of all Control Panels.

Functional test of all Emergency switches of all panels.

Securing all cables of push button switches, indication lamps and electrical joints

Functional test of all Control Panels

Functional test of all load cells and proximity /limit & instrumentation switches

Securing all load cells and proximity & instrumentation switches at various Junction box terminals.

Functional test of RAS FAS Winch Indicator.

Functional test of all Float Switches and Thermostats

Functions test of all filter clogging indicator

Functional test of all solenoid valves

Securing all fuses

Breakdown Maintenance.

Repair / Overhaul of Ram Tensioner Cylinder. The scope of work includes the following activities. (a) Remove the RAM tensioner cylinder from ship, (b) Transport the RAM tensioner cylinder to our works, (c) Dismantle the cylinder at our works, (d) Overhaul the cylinder depending on the problem. This may involve chrome plating - grinding of rod / honing of tube, (e) Renew all the seals, (f) Test the cylinder on test bed, (g) Transport cylinder back to the ship, (h) Fit cylinder in place on ship and take trials.

Repair/Overhaul of ASD Hyd. Cylinder.

Repair/Overhaul of Pump Servo Valve including removal and fitment.

Repair/Overhaul of pump displacement feedback potentiometer including removal and fitment

Repair/Overhaul of brake solenoid valve including removal and fitment

Repair/Overhaul of control solenoid valve including removal and fitment

Repair/Overhaul of ASD solenoid valve including removal and fitment

Pressure testing and charging of accumulators

Repair/Overhauling of ASD Sheave Assembly

Flushing of oil in hydraulic tank

Carry out serviceability check/calibration of RAM pressure sensor

Carry out serviceability check/calibration of RAM position sensor

Carryout serviceability check/calibration of pressure switch

Carry out serviceability check/calibration of Cable position sensor

Repair of solid/ liquid valve position proximity sensors including removal and fitment

Undertake routines of one number Rigs control cabinet. Routines to include following:- (a) Cleaning of all panels with alcohol, (b) Tightness checks of all terminals, (c) Check condition of all cables (d) Check condition of all JBs, (e) Cleaning of all JBs with alcohol, (f) Check conditions of LEDs, (g) Check functioning of PLC and control panel.

Unscheduled Maintenance Support (Mandays Charges) :- Deputation of specialists for defect identification only of the RAS FAS Equipment’s at Karwar. Charges for Per day (including Travelling and Stay charges)

Service Engineer / Technicians

Millennium Aero Dynamics Pvt Ltd (BID ID -3180197)