Tender For Rate Contract For Different Maintenance Activities Under Bm, Unit#5 And 6, purba-West Bengal

Tender For Rate Contract For Different Maintenance Activities Under Bm, Unit#5 And 6- 1 RC for Different Maintenance Activities 2 Air seal Work:-Dismantling & Servicing of airseal 3 Trunion Rotation with necessary work / Airport assembly part repairing by buildup & H/F 4 RJA Replacement with necessary work & roller setting (3 Nos) etc. 5 Mill Schedule Checking 6 Checking, dismantling &replacement of complete Spring or Spring adjusting stud. 7 Patch work of Mill bottom side liners. 8 Replacement of Scrapper plate & stopper (2 Nos.) 9 Replacement of Scrapper block, Scrapper bush, pin scrapper plates & stopper. 10 Patch work of Scrapper plate 11 Replacement of Scrapper bush, pin bush, Scrapper plates & Stopper 12 Scrapper door assembly / RJA Support plate with liner replacement 13 Scrapper door box replacement 14 Replacement of a knife gate with complete fittings. 15 Replacement of complete tramp iron spout with required welding 16 Replacement of Top / Bottom part of tramp iron spout with required welding 17 Replacement of tramp iron gate with required welding and necessary work 18 Rejection passage foreign material removal / Scannar air filter cleaning 19 Rejection passage chockage cleaning by poking & hammering,freeness checking of knife gate and cold air test by running of mill/ Seal air fan suction strainer cleaning 20 Replacement ofClassifier deflector blade/Replacement of lub oil pump 21 Link adjustment for classifier blade opening. 22 Removal of foreign material from mill inside & box-up 23 Bowl Mill OH 24 Replacement of insulation cover plate 25 Classifier cone rpl with allied works 26 Tightening of Mill gear box bolts & alingment with motor 27 Chockage cleaning of C.C.P by dismantling of Rockwell coupling, poking, air blowing and box-up with gasket. 28 Patch work in a CCP/MDV body/MPO/ classifier cone/windbox etc 29 Part repairing job of straight C.C.P by cutting out of the eroded parts and fitting of new part with required welding 30 Replacement ofGasket of Victualic coupling /MDV/Rockwell coupling /Dresser coupling with complete fittings. 31 Scaffolding of coal pipe work. 32 Replacement/ Servicing of MDV internal flapper gate 33 Replacement of MDV/Orifice/MPO/Transition piece with complete fittings. 34 Application of Belzona or other equivalent product on MPO/MDV/Coal pipe/classifier cone etc. 35 Servicing of RJA with new brg set, and fitting of grinding roll 36 Servicing of RJA without repl of brg, and fitting of grinding roll 37 Replacement of journal stop bolt 38 Replacement of seal air supply flexible hose/ RJA truniun Cap 39 Schedule feeder checking. 40 Shear pin replacement with removal of foreign materials from inside the feeder 41 Feeder drop pipe chockage cleaning by poking and subsequent mill internal checking with removal of coal clinker and foreign materials from grinding zone. 42 Feeder chute replacement. 43 Coal bunker outlet gate servicing /Feeder inlet gate servicing/ Feeder spider rpl/ Hot end drum rpl/Drive side drum rpl including dismantling and box-up 44 Coal feeder OH work 45 Rotation of coal feeder to mill chute centre pipe by 180 deg 46 Replacement of Feeder base frame. 47 Rotation of feeder to mill chute by 180 deg with necessary repair-ing and metal build-up of chute hopper 48 Patch work on PA duct/PA duct divider plate replacement/Venturi liner replacement 49 Alignment of a Mill gear box with mill motor including checking of spring and coupling with complete fitting. 50 Replacement ofgear box side coupling with complete fittings & alignment. 51 Replacement ofmotor side coupling with complete fittings & alignment. 52 Replacement of vertical shaft seal of mill gear box./ Replacementof complete oil of Mill Gbox 53 Replacement of G/B input shaft seal/Lub oil coupling greasing/Oil top up of APH/ID/FD/PA/Bowl Mill gearbox 54 Vertical shaft shim adjustment & allied works /Blue matching of worm shaft and gear and complete box-up. 55 Mill gearbox side (gear coupling) & motor side (bibby coupling) greasing 56 Opening of front access door, dismantling of worm shaft from its position, alingment& necessary blue match checking is to be done. 57 Tightening of Mill gearbox bolts & alingment with motor/Opening of front access door and dismantling of worm shaft from its position. 58 Bowl Mill GearBox replacement 59 Tension checking & tension adjustment of all foundation bolts & accessory work 60 Manual opening and closing operation of Guillotine gate/louver damper/Cold air gate 61 Repairing / replacement of reach rod ofoil/coal nozzle with required adjustment 62 Replacement of one no. Burner titling shear pin. 63 Replacement/repairing of scanner guide pipe/HEA igniter guide pipe/Fabrication & replacement of RJA upper housing liner 64 Oil Burner/ID/FD/PA/Voith coupling/Bowl Mill Strainer cleaning

Sr No	CorrigendumDate	Corrigendum	CorrigendumType	NewSubmissionDate
1	08-05-2025	Due Date Extended for tenders closing on 06-05-2025.	Admin Corrigendum Date Extend	10-05-2025

Refer document

INR 197144.0 /-

INR 98.57 Lakhs /-