Rail Wheel Plant Tender

Repair of furnace platforms, support beams of gantry arms and replacement of ladders of EAF-A, B & C a) Removal of plates from the platforms. b) Removal of supporting beams of gantry arm. c) Marking, sizing, 5 fabrication of supporting beams for gantry arm. d) Positioning and welding of supporting beams. e) Marking, sizing and positioning of 12mm thick plates on furnace platform. f) Marking, sizing of M.S. Flat of 3/6mm. g) Positioning and welding of M.S. Flat on 12mm thick platform plate for safety grip. h) Removal of ladder. i) Marking, sizing, fabrication of ladder and welding of ladder to gantry. j) Welding of additional supports and hand rail for ladder. Supply of materials i.e. supporting beams - MS Plates 0f 12 mm & 3/6 mm thick.

Replacement of Single Acting Cylinders of EAF-A, B & C column hyd regulation a) Removal of water cooled hoses of Arms. b) Removal of W.C. Cables & Hoses towards arm end. c) Dismantling and lowering of arm assemblies. d) Removal of Hyd pipe & hose connections. e) Removal of columns after disconnecting 6 cylinder mounting pins. f) Lifting of Single Acting hyd cylinders of column movement. g) Dismantling of cylinders. h) Thorough cleaning of Barrel & Ram. i) Replacement of seals and gland of cylinders. j) Repair to mounting brackets. k) Positioning of serviced cylinders in place. l) Fitment of New pins. m) Fitment of columns. n) Fitment of arm assemblies. o) Fitment W.C. Cables & Hoses towards arm end. p) Connecting hydraulic pipe lines & hoses. q) Testing of cylinders for any hyd. leakages & attend. r) Disposal of released material to the ear marked place.

Supply and fitment of mechanical earthing with 'L' Shape clamp of water cooled panels

DRAINING OUT COMPLETE HYD OIL FROM TANK, CLEANING OF TANK, PURIFICATION OF OIL AND REFILL BACK TO TANK

Removal, Dismantling, Balancing and Fitment of impeller units and repair of ducting of ventilation units of EAF-A, B & C. a) Removal of covers and impeller assemblies. b) Dismantling of pulleys & bearings from 9 impeller shaft. c) Thorough cleaning and repair of impellers. d) Painting of impellers by one coat of red oxide paint. e) Transporting of Impellers from RWP to an outside agency and receipt of impellers after balancing. f) Assembly of balanced impeller, bearings, pulleys on shaft. g) Repair of ducting. g) Fitment of assembly, top cover and trial run. h) Disposal of released material to ear-marked place.

Repair/Servicing of Arc Furnace bus tubes: a. Shifting of bus tube from MMS to work spot c. Identifying/locating the leakage point by water pressure testing. d. Identifying/locating the pitting mark and replace 10 the copper end plate with new one with size (17 mm x 12 mm x 3 mm). e. Removing & cleaning of unwanted materials at leakage point for brazing. f. Arrangements of supporting structure for brazing. g. Heating of bus tubes for brazing. h. Brazing of leakage points. i. Water pressure testing to confirm the no leakage. j. Shifting of bus tubes from work spot to MMS stores or earmarked place.

Supply of copper end plate of size 17 mm x 12 mm x 3 mm

Repair/Servicing of Arc Furnace bus tubes: a. Dismantling of bus tube from EAF to work spot c. Identifying/locating the leakage point by water pressure testing. d. Identifying/locating the pitting mark and replace 12 the copper end plate with new one with size (17 mm x 12 mm x 3 mm). e. Removing & cleaning of unwanted materials at leakage point for brazing. f. Arrangements of supporting structure for brazing. g. Heating of bus tubes for brazing. h. Brazing of leakage points. i. Water pressure testing to confirm the no leakage. k. Fitment of ready bus tube to EAFs

Supply of copper end plate of size 17 mm x 12 mm x 3 mm

As built drawings of Water Cooled Panel (i)'C' or Slag Door panel - RH / LH-2 Nos. (ii)'1' Panel - RH / LH-2 Nos. (iii)'2' / '8' - RH / LH-2 Nos. (iv)'3' / '7' - RH / LH-2 Nos. (v)'4' / '6' - RH / LH-2 Nos. (vi)'5' - RH / LH-2 Nos.

Changing of all control cables between TCD to Junction box Adjacent to hydraulic room in each 15 furnace, All operations of TCD to be tested and made ready. b) All Cables to be supplied will be in firm's scope c) Detail of cable required for this work is mentioned in Annexure-A Sl. No. - 1

a) Removal, cleaning, repairing, checking and refitting of copper insert. b) Brazing and grinding of copper inserts to make the front surface flat. b) Non-repairable copper inserts to be replaced with spare one. c) Spare copper insert will be provided by RWP

Repairing (by brazing and grinding) and testing of defective copper inserts available in our store.

a) Cleaning and Tightness of complete electrical panels including MCC panels and all control desks panels in each furnace b) Replacement of all defective parts inside the panels, Spare to be provided by RWP c) Cleaning and Maintenance of all 12 WCC to be done in each furnace, changing of WCC if any found damaged or choked, Spare WCC to be provided by RWP. d) All insulators of Furnace body, electrode arms and bus tubes to 18 be cleaned and tightened in each furnace. If any insulator found in damaged condition then to be replaced. Spare insulator to be provided by RWP. e) Gaskets of both transformer oil pumps in each furnace to be changed. f) Cleaning, Tightness and Alignment of bus tubes in transformer room of each furnace to be done. g) Complete body tightness of transformer of each furnace to be done, any kind of transformer oil leakage to be arrested by changing the respective gasket. Supply of Gasket to be in Firm's scope. h) Cleaning and tightness of regulation panel, marshalling box and OTI & WTI panel to be done.

a) Transformer water overflow pipe to be replaced with approx 150 mm Nominal bore medium 19 Stainless steel pipe in each furnace. b) Length of pipe required is approx 30 mtr in each furnace. c) SS pipe as well as all auxiliary equipments and tools required for changing of pipe will be in Firm's scope as mentioned in Annexure - A Sl. no. 3.

a) Maintenance of all gauges and Valves in transformer room of each furnace to be done. b) Defective gauges to be replaced with new one. c) Supply of gauges will be in Firm's scope. d) Detail of defective gauges attached in annexure - A Sl. No. 4

a) Maintenance and Calibration of OTI and WTI of transformer of each furnace to be done. b) If 21 any OTI or WTI found defective then it has to be replaced with spare one. c) Providing Spare OTI and WTI to be in RWP scope d) Working of OTI and WTI to be checked after maintenance. e) Calibration certificate of NABL certified LAB to be provided by the firm after calibration.

a) Maintenance and cleaning of both Heat exchangers of each furnace to be done. b) Both Mechanical and chemical cleaning to be done. c) All tools, equipments and materials required for cleaning will be in Firm's scope of work. d) After cleaning, testing to be done and flow of water to be around 600 LPM

a) Cleaning and terminal tightness of all three Hydraulic motors and two heat exchanger motors 23 and respective junction boxes to be done in each furnace. b) Power cables between each Hydraulic/Heat exchanger motors and their respective MCC panel to be replaced with new cable. c) Supply of cable will be in Firm's scope d) Details of cable required for this work is in Annexure-A Sl no. 5

a) Two junction boxes in each furnace ( One on furnace body and other one in basement below 24 furnace) to be replaced with new IP 67 dust proof and water proof junction boxes. b) All control wire termination in junction box to be done properly c) Supply of Junction boxes will be in Firm's scope d) Detail of quantity and dimensions of junction box given in Annexure- A Sl. No.6

- a) All 21 limit switches to be changed in each furnace. b) All cables of limit switches to be secured. c) Supply of limit switches will be in Firm's scope. d) Detail quantity and description of Limit switches given in Annexure-A Sl. No. 7

a) Calibration of all 24 Nos. of RTDs installed in each furnace water pipeline to be done. b) If any 26 RTD found defective then it has to be changed. Spare RTD will be provided by RWP. c) All tools and equipments required for calibration will be in firm's scope. d) Calibration certificate of NABL certified LAB to be provided by the firm after calibration.

a) Replacement of all 3 LVCT of electrode regulation system in EAF A, B and C with new one. b) Supply of LVCT for replacement will be in firm's scope of work. Detail quantity and description of LVCT is given in Annexure-A Sl. No. 8