N.I.T. No. 05 2026 27 Item No.17

Repair/Renovation/Strengthening of Final Settling Tank with other allied works at Vasant Kunj 2.2 MGD STP with following works:- Isolating the Final Settling Tank from inflowing and outflowing channels by closing sluice gate using MS sheet plank, gunny bags , to stop the flow completely into FST and to make the same dry , using heavy labor and required safety arrangement.

Dewatering the stagnant water from FST with the help of submersible pumps ,pipes and labor and cleaning the floor of FST from silt manually with labor. DSR 14.23

Dismantling of motor and primary reduction gear box and other mechanical fixture from the top of center mechanism and shifting to workable safe place.

Dismantling of central driving unit by cutting nut and bolt with the help of gas cutter and dismantling of shaft, central gear, worm gear complete end and transmission unit and shifting to the safe workable place with the help of mobile crane and heavy labor etc.

Dismantling the damaged structure of the both scrapper arms and shifting to a workable place with the help of mobile crane and heavy labor etc.

Providing/making temporary platform around the central cage of FST as per site requirement.

Making arrangement for lifting of M.S bridge to such a level with mechanical lifting equipment so that turntable can be dismantled safely with manual labor and material handling equipment etc.

Providing of seal, gasket and other hardware item for central assembly as per site requirement.

Providing of tie rod with wire rope for balancing the scrapper arm as per site requirement.

Renovation and strengthening of scrapper arm structure by way of providing and fixing new elements of structure made out of 65x65x6 mm MS angle and 50x50x6 mm as per requirement and channel 150x75 mm and 6 mm thick sheet.