bids are invited for roller - replacement of roller journal assy. , na - changing of bull ring segment , na - servicing of r. j. assy. , na - repairing of eroded portion of classifier cone , ring - replacement of bowl extension ring , na - replacement of bowl hub cover , na - servicing/replacement of complete spring assy. , na - changing of worm shaft bearing , na - checking of worm shaft bearing , na - checking of lower radial brg./ thrust brg. of bowl mill. , na - replacement of mechanical face seal , na - fitting of upper skirt assy. , na - changing of gear coupling , na - replacement of expansion joint of hot /cold air duct , na - servicing of cold air gate. , na - replacement of upper radial brg. housing , mill - replacement of mill bottom , na - replacement of mill sep. top assy. , na - refitting of bowl hub cover when one r.j.assy is out , na - decoupling or coupling of mill-motor , na - removal of foreign materials like stone boulders/iron pieces etc. from bowl mills. , na - replacement of worn out classifier blades. , na - replacement of r.j. assy along with grinding rolls , na - checking of matching of rim gear and its face out , na - checking of t-811 brg of bowl mill , na - arresting/closing of dust leakage from mill bottom cover , na - refitting of trunion end cap . , na - cleaning of hot air duct ( during shutdown). , na - replacement of rcf hopper (for ss hopper) , na - replacement of rcf hopper (for ms hopper) , na - changing of mpo/mpo plate , na - alignment and coupling of mill-motor , na - making new tapped holes in the bottom of bowl hub , na - repairing/ replacing damaged insulation cover plate of b/m , na - repairing/replacing mill bottom liner , na - changing of victaulic coupling gasket of mpo/mdv/orifice , na - servicing of hot air gates , na - replacement of mdv. , na - welding in hot air duct/cold air duct/header , na - changing of seal of pneumatic power cylinders of hot air gate , na - servicing of pyrite hopper damper , na - repairing/r