overhauling of id fd and seal air fan of unit 5 btps- 1 overhauling of id fan 2 overhauling of id fan 3 servicing of id fan suction damper2 nos./id 4 servicing of id fan igv (2nos./id) 5 replacement of non metallic bellow 6 insulation and sheet cladding work 7 overhauling of voith coupling 8 runner replacement of voith coupling 9 overhauling of fd fan 10 cleaning, checking and tit bit repairingof runner fd fan, cleaning, checking and repairing and painting of nets 11 servicing/replacement of bearings deand nde 12 igv checking/bush replacementwith alliedwork require for smooth operation of igv 13 alignment of fan with motor 14 assistance of rotor balancing 15 overhauling of seal air fan 16 overhauling of seal air fan 5a 17 replacement of seal air fan 5band overhauling