overhauling job of boiler pressure parts of 250 mw unit of stps , wbpdcl , overhauling of boiler drum . , scaffolding of fsh , plsh , rh . , cleaning of boiler pressure parts by hp waterjet . , insertion of tube for fsh , plsh , rh & ltsh steam cool wall & spacer tube . , alignment of the fsh , plsh , rh coils . , lifting & refitting of ltsh coil . , removal & fitting of guard tube & guard plate for ltsh , economiser , cage wall , baffle wall etc . , skin casing welding , scaffolding of furnace zone , cleaning of furnace zone by hp water jet , welding joint for insertion of furnace wall tube including screen tube . , welding joint for insertion of economiser tube & economizer hanger , lifting & refitting of economiser coil , deposition of weld metal on tubes , stubs , headers etc , stress relieving for pressure welding joint , fabrication & fitting of fins for boiler tubes , sealing at top of bottom ash hopper by wooden planks , gi sheet etc , inspection of pent house , repairing of pent house , cleaning & resetting of spring /sling at pent house , roof loose tube proper clamping , d-metering of pressure parts , dp test of stub/regular joints , radiography of pressure welding joints ( including turbine area ) , servicing & trivy test of drum , sh , rh , safety valves , servicing of soot blower safety valve , fabrication of different size bends , economiser header stub joint rectification / replacement , ltsh inlet header stub joint rectification / replacement , replacement of hp valve size upto 50mm , replacement of hp valve size above 50mm , wind box repairing work ( both sides ) , ash cleaning of boiler internal & ducts . , removal & reapplication of refractory . , removal & reapplication of insulation . , hiring of 01 no . of hydra / crane ( capacity: 11 ton ) with operator & fuel . , boiler external cleaning by air & water . , deputation of one no . expert ( ex-bhel ) for safety valve servicing from absolute boiler care or best expert service team . , deputation of one no . expert ( ex-bhel ) for checking and necessary correction of all boiler hanger support as per schedule from absolute boiler care or best expert service team .