bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - manufacturing unit; e 3728 biennial rate contract for various activities in sap /cna plant at rcf trombay unit; as per scope of work - to and fro shifting of pump from plant and workshop and assisting during replacement as per sow(per pump ) , cleaning of pumps and spares(per pump) , assistance on maintenance jobs of main air blower lop (per pump) , assistance in burner vertical pump replacement (per pump) , shifting of scrap material to scrap yard from the plant premises(per trip) , transfer of material from stores to plant and arrangement of the same in the plant stores or to deliver the same on the jobs(per trip) , assistance in maintenance jobs in loading arm , flange tightening upto 300#(per inch dia) , suction strainer cleaning and box up (3in to 08 in) , drain flange opening & boxing up upto 300#(per inch dia) , hose replacement in road tanker, in cna and sap loading station , bearing greasing of effluent pumps , to and fro shifting of cutting set for heating choked sulphur lines , blinding and de blinding of pipeline for tank jobs(150# & 300#) , potassium silicate injection , replacement of glass piping(1 dia to 4 dia) , patch welding job