tender for charges for overhauling of sludge disposal pump includes dismantling of pump components, cleaning, inspection and renewal of worn-out parts and reassembling. , complete alignment & checking the operation of clarifier sludge disposal pump motor, sludge disposal pump and its suction & delivery pipe lines and its 150 mm gate valves. , charges for overhauling of 150 / 200 mm size 100 / 125 class gate valves of cold & hot water tunnel vent in cooling water system i including dismantling of vent pipe , complete dismantling the valve, lapping the valve disc & seat area renewal of spares, gland packing and rubber gasket and assembling. , charges for cleaning the algae and other foreign materials on the outer surface and painting with two coats of enamel yellow / black paint on handrails and epoxy smoke grey paint on ct id fan blades, gear boxes, g.b. foundation. , charges for painting with one coat of rust convertor , one coat of epoxy red oxide primer and one coat of epoxy coal thar black paint one over the other with proper intervals for door structure in sun shield roof, safety grills inside the fan stack area, gearbox oil level indicator pipe line in cooling tower -i. , charges for draining the oil in 1 no. ct id fan gear box, to remove the gear box oil level indicator pipe line from the gear box, cleaning the pipe line and releasing/removing the choke in the pipe using air/ water and re fixing the same in the gear box, and topping up of drained / new oil in the gearbox, if any pipe fittings like tee, union, elbow, bend is damaged it has to be replaced which are under contractor scope. , charges for cutting and removal of existing deteriorated bolts of scrappers, removing damaged scrapers, cutting of scrapper rubber to required dimension from old conveyor belt, marking and making holes on scrapper rubber and fixing with new g.i bolts and nuts in the traction & flocculator drive in clarifier i. , cost of neoprene rubber(black) gasket , size,1m x 2 m x5 mm thic