MTPS I TM Stage I and II Units I II III and IV BFPs BFBPs CEPs Voith Hydraulic Couplings and HDPs Preventive Break down Maintenance from the date of commencement Phase I

Amount

Renewal / Replacement / Servicing of DE/NDE Mechanical seals & renewal of CW Jacket ‘O’ rings of BFP. A.) De-coupling the feed pump, dismantling the oil and water lines, dismantling the DE / NDE side bearing assembly, mechanical seals etc.

b)Renewal of Cooling water jacket “O” rings by removing cooling water jacket from DE/NDE side of BFP using puller arrangement.

c)Re-assembling the bearing housing, journal bearing &Mechanical Seals after servicing and assembling, renewal of gaskets for oil lines, checking oil clearance and other allied works

Renewal of Sution Guide ‘O’ Ring of Boiler Feed Pump Renewal of suction Guide ‘O’ Ring of Boiler Feed Pumps. De-coupling the feed pump, dismantling the suction guide cover flange, cleaning and renewal of suction guide ‘O’ ring and reassembling the cover flange and coupling of the pump with Voith.

Renewal of Discharge Cover ‘O’ Ring of Boiler Feed Pump a) Decoupling the Feed pump from hydraulic coupling dismantling all the oil &water lines, removing the drive end and non drive end side studs withdrawing the pump cartridge

b)Dismantling the DE&NDE side bearing assemblies, mechanical seals, removing the HP end cover after supporting cartridge.

c)Renewing the discharge cover O ring, reassembling the cartridge into the barrel and positioning the discharge cover, tightening the studs using hydraulic torque tensioner on both the sides. Assembling of the mechanical seals, bearings and checking clearances of the bearings.

d)Aligning the pump with the hydraulic coupling, reassembling the cooling water lines & oil lines and successful commissioning of the pump .

Inspection of DE / NDE Bearings of BFP a)Inspection of DE / NDE Bearings of BFP and Replacing/servicing if required. De-coupling the feed pump, dismantling the oil and waterlines, dismantling the DE / NDE side bearing assembly etc.,

b)Checking of DE/NDE Bearings, taking measurements, blue matching, servicing/ replacing if necessary and re-assembling of the Bearing Housings and commissioning of the pump

Inspection/Repairing/Servicing of Mechanical seal coolers of Boiler Feed Pump.Disconnecting the CW line flanges, Mechanical seal cooling water lines from the Mechanical seal cooler, dismantling the mechanical seal cooler from the bed, dismantling the shell and the tubes separately, cleaning of the tubes and the shell, Reconditioning of the worn out shell portions if required, Painting inside the shell with Anti-Corrosive Black paint, Hydraulic testing of the cooler tubes for the rated pressure, reassembling the shell and the tubes and assembling the cooler in the bed with renewed gaskets and painting the cooler consumables and T & P charges.

Renewal / Repairing of DE/NDE Bearing Housings/Bearing carrier Assemblies, Centering, Providing Guide pins/dowel pins according to the alignment and allied works.a)De-coupling the feed pump, dismantling the oil and waterlines, dismantling the DE / NDE side bearing assembly, bearing housings and bearing brackets etc.

b)Checking of bearings, taking measurements, repairing/servicing/renewing the bearing housings/bearing carrier assemblies and replacement of worn out parts ect, matching with the bearings and allied works assembly from the barrel using fixture.

c)Re-assembling the bearing housing/carrier assemblies, journal bearings & other parts after servicing and assembling, centering the bearing housings with respect to the cartridge & barrel assembly, checking for free rotation of the pump, renewal of gaskets for oil lines, checking oil clearance and other allied works.

Attending Steam Leakage in BFP balancing Leak- off Line Disconnecting the Balancing leak-off line, removing the old gaskets and cleaning the flange surfaces, reassembling the leakoff line with renewed gasket.

Labour charges for IBR welding for Replacement of Valves, Pipes, Stubs, Bends and Reducers by Non IBR Welding Works.

Labour charges for IBR welding for cutting and welding of GLV 1"/1500/2500 class valves AS or equivalent joints by IBR welder

Part- II Boiler Feed Booster Pumps.Renewal / Replacement / Servicing of DE/NDE Mechanical seals & renewal of CW Jacket ‘O’ rings of BFBP. a. De-coupling the feed pump, dismantling the oil and water lines, dismantling the DE / NDE side bearing assembly,mechanical seals etc.

b. Renewal of Cooling water jacket “O” rings by removing cooling water jacket from DE/NDE side of BFP using puller arrangement.

c. Re-assembling the bearing housing, journal bearing &Mechanical Seals after servicing and assembling, renewal of gaskets for oil lines, checking oil clearance and other allied works.

Inspection of bearings and Renewal Replacement /Servicing of DE/NDE Bearings / Oil Guards / Thrust pads of Boiler Feed Booster Pump. a. De-coupling the Booster pump, dismantling the oil and water lines, dismantling the DE / NDE side bearing assembly etc.,

b)Checking of DE/NDE Bearings, taking measurements, blue matching, servicing/ replacing if necessary and re-assembling of the Bearing Housings and commissioning of the pump.

Renewal / Repairing of DE/NDE Bearing Housings /Bearing carrier Assemblies, Centering, Providing Guidepins/dowel pins according to the alignment and allied worksA)De-coupling the booster pump, dismantling the oil and water lines, dismantling the DE / NDE side bearing assembly, bearing housings and bearing brackets etc..

B)Checking of bearings, taking measurements,repairing/servicing/renewing the bearing housings/bearing carrier assemblies and replacement of worn out parts etc., matching with the bearings and allied works.

C)Re-assembling the bearing housing/carrier assemblies, journal bearings & other parts after servicing and assembling, centering the bearing housings with respect to the cartridge & barrel assembly, checking for free rotation of the pump, renewal of gaskets for oil lines, checking oil clearance and other allied works.

Checking and correcting of alignment between the Booster pump coupling and motor coupling of Voith coupling and carrying out trial run of the BFP ad finally commissioning of the pump.

Dismantling the strainer lid assembly and removing the BFBP strainer basket from the strainer assembly, inspection and renewing the damaged strainers if necessary, cleaning the strainers and reassembling the basket, cleaning inside the strainer well and removing the old gasket from the lid closing area, assembling the strainer basket in the well and assembling the BFBP strainer assembly with renewed gasket inclusive of consumables and T & P charges.

Inspection and Hydraulic Testing of BFP Lub oil/ Working oil cooler Assembly. Disconnecting the Lub oil / Working Oil lines from the Cooler after draining the sump oil, dismantling the water boxes, separation of tube nest from the cooler and cleaning the inner surface of shells, tube nest and conducting the hydraulic test to the rated pressure, reconditioning of shell outer surface by welding if necessary, plugging the tubes if puncture deducted and reassembling of cooler and the connected parts with the renewed gaskets & ‘O’ rings

Part- IV Condensate Extraction Pumps Replacement of existing Condensate Extraction Pump by Spare Pump:a)Removing of pump half coupling, checking pump float, removal of Bearing chamber and bearings, Disconnecting air vents and cooling water lines, suction and discharge flanges and lifting the pump.

b)Placing the Spare Condensate Extraction Pump on the canister and restoring the suction and discharge pipe connections.

c)Assembling the bearings chamber, Restoring the pump Half coupling, air vent and cooling Water lines, Checking and correcting pump float, Successful commissioning of the pump.

Inspection / Replacement of Coupling / Bearings of CEP Lifting of Motor from its bed and remounting the motor with CEP and carrying out alignment

HEATER DRIP PUMP Replacement of defective Heater Drip Pump with Spare pump, and commissioning. a)Decoupling and removing the defective pump & motor from the bed and Dismantling the DE & NDE bearing housings of pump.

b)Transporting the Spare pump from Repair Bay area to the Pump Bed and Transporting the released pump to the repair bay area for overhauling including leading and lifting charges.

c)Cleaning the Suction line, suction filter and Discharge line flanges, CW line flanges and renewal of gaskets and connecting suction and discharge lines with the pump, connecting and welding of the leak off line with the pump and other connected CW lines for the commissioning of the pump.

d)Dismantling and cleaning of oil coolers & cooling water lines and changing gaskets and assembling with the pump.

e)Shifting the motor to plinth place, aligning & coupling of the spare pump with motor and Commissioning of spare pump in HDP

Attending replacement of defective Bearings in Non-Drive End of Heater Drip Pump and Commissioning of pump.a). Decoupling of pump with motor and Dismantling the DE & NDE side Cooling water lines of pump.

b)Dismantling and cleaning of oil chambers and changing gaskets at both the ends.

c)Removal of NDE side seized bearings by Gas Cutting and Heating the bearing housing, cleaning the shaft bearing seating area and checking measurements, Cleaning the bearing housing and Renewal of required NDE bearings, sleeves, “O” rings, Gland ropes & gaskets and assembling suitably with pump shaft.

d)Alignment of pump with motor & coupling of the pump with motor, assembling of oil chambers at both the ends and connecting all cooling water lines and Commissioning of pump.

Attending Renewal of sleeve “O” ring/ DE bearing at -Drive End side of Heater Drip Pump and Commissioning of pump.a)Decoupling of pump with motor and Dismantling the DE side Cooling water lines of pump.

b)Dismantling and cleaning of oil chambers and changing gaskets at DE side

c)Removal of DE side bearing by mechanical puller arrangements, cleaning the shaft bearing seating area, Cleaning the bearing housing and Renewal of sleeve “O” ring, bearing if necessary, assembling the bearing arrangements, Gland ropes & gaskets suitably with pump shaft

d)Alignment of pump with motor & coupling of the pump with motor, assembling of oil chambers at both the ends and connecting all cooling water lines and Commissioning of pump.

Charges for Consumables and T&P’s item Sl.No:1 to45

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