NIT No-16 EE (SDW) II/ (20-21) Item No. 6

Isolating the Final Settling Tank (FST) from inflowing and out flowing channel by closing sluice gate and providing gunny bags to ensure no flow in the FST. Dewatering the stagnant water from the FST with the help of submersible pump and D.G. set. Cleaning the site manually for execution the work.

Dismantling of motor, gear box and other mechanical fixtures from the top of centre mechanism and shifting to workable safe place.

Making temporary platform in the FST around the central post as per site requirement.

Dismantling the all worn out angle iron, scrappers, damaged portion of the drum by cutting nut & bolt with the help of Gas cutter, man power, labour as per site requirement/ strategy.

Dismantling of internal gears of turn table, and lifting and shifting to ground level.

Repairing of centre drum by patch work using 8mm thick M.S. sheets and homogenous electric and welding i/c replacement of the damaged stiffeners of the drum with the help of electric welding by providing of size 50x8mm M.S. flat as per site requirement. The job also includes replacement of the damaged portion of the drum and restringing with 50x50mm angle iron fixed on the top and bottom of the drum with the help of electric welding.

Providing/fixing of SS Tie Rod of size 5/8” dia x length 5 Mtrs. Apprx. both side of central drum for holding the scrapper arms with adjustment assembly.

Providing of M.S. Angle Iron of size 90 x 90 x10 mm, for scrapper arms. (2 mm each apprx.)

Fab./ providing of sets of bottom scrappers of sizes appx 2700 x 200 x 8 mm along with rubber squeezers & M.S. flat.

Assemble the complete structure at site with required men power, tools & tackles for the same.

Repairing of turn table, including wheels, Oil pump, oil pipe and other allied works as per site requirement.

Overhauling the gear box of FST complete all respect. The job also i/c rewinding the motor, top-up of lubricant and replacement of coupler/base frame.

Providing a set of Bearing comprising Bearings Nos. 7206 = 2 Nos. and 30212 = 2 Nos. Make:- SKF/FAG

Repairing of bridge with replacement the damage angle Angle iron for bottom portion in tee shape. i/c Replacement the damage stiffeners in bottom portion. Made out of M.S. angle iron support out of 50mm x 50mm x 6mm length (100mm).

Providing/Fixing the nut bolts after drilling in angle at the corner to fix / joint the other angles job also i/c provide the extra angle on the each joint for strengthening the bridge.

Replacement of MS chequered sheet, 8mm thick, 0.950 mtr. wide in a length of 23 Mtr. Approx. by cutting of old rusted/ corroded sheet & fixing of new sheet with welding work

Painting the complete structure after removing the rust with the wire brush and putting one coat of epoxy primer and two coats of epoxy paint etc.

Commissioning of complete FST after completion of job in all respects.

Goodwill Enterprises

paramount systems