tender for routine maintenance of electrical equipments and panels.(2 times/ month). , routine maintenance of mechanical equipments. (2 times/ month). , maintenance/repair of opu systems of units and cleaning of opu tank.(quarterly) , maintenance/ repair of runner blade of unit by way of fixing of s.s. sheets/ s.s.welding on damaged surface of runner blade assembly. , repair/maintenance of 11kv switchyard power transformer 3x700 kva and 1 x 63 kva auxiliary transformers and replacment of defective parts like bushes, kits,etc , dehydrating of existing oil of 11kv switch yard power transformer 3x630 kva and 1x63 kva auxiliary transformers. , maintenance /repair and setting right of slipped guide vanes of a unit.(as and when needed) , arrangement for winter shutdown of project. , arrangement for restart of units after winter shutdown. , routine maintenance of 45 kva dg set. (quarterly) , dismantling and removing of ac generator, draft tube and main runner assembly of unit for urgent repair/replacement of oil seal/turbine bearing. , handling and re-installation/re-fixing of ac generator, draft tube and main runner assembly of unit after replacement of oil seal/turbine bearing and re-alignment of unit. , maintenance/repair of cooling system of units. , maintenance/repair of battery bank cells and its charger and replacement of defective parts. (quarterly) , maintenance/repair of illumination system, inside powerhouse, powerhouse periphery, switchyard, tail pool side and approach road to forebay.