overhauling of boiler pressure parts at unit 5 during jan feb 2023- 1 overhauling of boiler drum 2 scaffolding of fsh, plsh, r / h 3 cleaning of boiler pr. parts ( plsh, rh by hp water jet ) 4 insertion of tube for fsh, plsh, rh ( & ltsh, joint ) 5 lifting & refitting of ltsh coil 6 removal, fabrication & fitting ( of guard tube & guard plate for psh, rh, ltsh, economizer, cage wall, baffle wall ) 7 removal & fitting of guard tube ( & guard plate for psh, rh, ltsh, economizer, cage wall, baffle wall ) 8 skin casing welding 9 scaffolding of economizer zone ( and cleaning of ltsh & economizer zone ) 10 repairing of economizer hopper 11 lifting of eco. coil and refitting ( after repairing ) 12 insertion of economizer tube, joint 13 fabrication of different size bends 14 scaffolding of furnace zone 15 cleaning of furnace zone by hp water jet 16 insertion of furnace wall tubes, joint 17 deposition of weld metal ( on tubes / stubs / headers etc ) 18 stress relieving for pressure welding jt 19 welding of fins for boiler tubes 20 fabrication of fins for boiler tubes 21 sealing at top of bottom hopper ( by wooden planks, gi sheets & gunny bags ) 22 repairing / replacement of corner ( buck-stay ) 23 inspection of pent house 24 repairing of pent house 25 cleaning & resetting sling at pent house 26 roof loose tube proper clamping 27 d-metering of pressure parts ( ( minimum 5000 spots ) ) 28 dp test of stub joints 29 radiography of pressure welding joints ( per snap ) 30 servicing of drum / sh safety valve 31 servicing of soot blower safety valve 32 replacement of hp valve ( size up to 2 ( 50mm ) ) 33 replacement of hp valve ( size above 2 ( 50mm ) to 4 ( 102mm ) ) 34 hanger support oh work ( cold setting ) 35 hanger support oh work ( hot setting ) 36 hiring of escort crane with operator ( & fuel. ) 37 servicing of wall blowers 38 engagement of expert for hanger ( ( cold & hot setting ) ) 39 boiler external cleaning 40 removal and reapplication of refractory