NIT NO. 7 (2021-2022) EE(SDW)VI/ ITEM NO.4

Isolating the FST from inflowing and out flowing channel by closing sluice gate and providing gunny bags to ensure no flow in the FST. De-watering the stagnant water & sludge from the FST with the help of sewage submersible pumps and cleaning the site manually for execution the work.

Dismantling of Reduction gear box and motor from the top of turn table & scum arm by removing of nut bolts etc. removing of worm shaft from the gear box. And other mechanical Fixtures from the top of centre mechanism and shifting to workable safe place.

Dismantling of complete turntable assembly and central drum carefully with all safety measures and other mechanical fixtures from the top of center mechanism and shifting to workable safe place with shuttering arrangement & high long boom crane with hydra at site at STP with lifting of bridge with the help of mechanical /hydraulic jack and chain block pulley at the centre of the bridge with taking all precaution and rest of the bridge with suitable packing/ mechanical supports vertically as well as crossed of FST by welding work as required.

Dismantling and taking out the worn out scrapper arms (both) & central caze, bridge path and all other allied rusted structure of FST with the help of gas cutter, man power, and lowering lifting tools and tackles as per site requirement.

Making temporary plate from for workable place in the FST around the central caze with all T&P as thrust supports jacks, MS pipe , MS plate, rope wire complete with all safety equipment’s

Fabrication and fixing of MS scraper made out of MS sheet of 6mm thick along with rubber squeezer of 100% synthetic rubber nut bolts and drilling holes etc as per sample

Providing & Fixing of chain coupling sprocket wheel & chain set made out exactly as per shapes , size & MOC of sample.

repair/Replacement of Central caze by replacement of MS Angle of Size 100 x 100 x 8 mm and 75 x 75 x 8 mm inappropriate length along with cross member and MS plate of size 300 x 300 x 8 mm in balancing way with center mechanism in all respect, included replacement of center mechanism base frame channel

Replacement of M.S. centre drum (2 meter. height x 16.5 meter approx.) of FST with installation of 2 Meter heights x 16.5 meter (approx) fiber sheet in the inner side of the MS centre drum. The work includes replacement of damaged channel of the drum as per site requirement

Repairing of reduction gear box with replacement of worm shaft of main gear to replacement of all damaged bearing with worn out garari machining of complete body to help of lathe machine to replacement of all damaged mechanical parts with required oil complete in all respect.

Rehabilitation of existing Turntable assembly for noiseless trouble operation of the Turntable including supply of components and job work as required but not limited to the following: -repairing/ overhauling and housing straightening repair, machining, polishing and levelling of bevel gear and complete centre mechanism -welding of complete worn out housing using special purpose electrode, machining -hardening of complete seat by flame surface hardening -Repairing of the seat in both portion of turntable of housing in both portion of turntable of housing by special type welding material as repairing of seat in bottom of centre mechanism of boll bearing housing by special type bearing steel welding material rods and welding of complete worn out ball housing making proper machining and smooth finishing after the complete bearing seat into hard by flame (temping) surface hardening of bearing ball in appx. 2MTR Dia in round shape as per job requirement repairing of the seat in top part of centre mechanism housing by special type bearing material steel welding rods welding of complete worn out ball housing making proper machining and smooth finishing on vertical boring machine and after this complete bearing seat into hard by flame surface hardening of bearing ball housing in appx. 2MTR Dia in round shape also making the fixture for clamped on vertical boring machine as per job requirement. Assembly of complete internal gear and gear box assembly after fixing of complete turn table along with the other gear with all safety measures with help of heavy labour and material handling equipment.

Strengthening of PST bridge by providing and Fixing the new of Jali Made out M.S. Flat size 50x6 mm in vertical shape with 40 mm centre to centre distance welded with 25mm M.S. Strip with press moulded Zigzag shape duly welded at site.

Providing & fixing new motor 5 HP as per sample (DJB approved make )

To & Fro, loading & unloading with all allied other hardware items with complete charges.

Painting the complete FST structure after removing the rust.

Alignment, Testing & commissioning the complete FST after completion in all respect on No load/Full load. Erection/ Installation of the complete structure for FST after assembly/fixing the above material with provision of weight to align the same

AQUA GASEOUS CONTROLS (INDIA)

Shakti Trading Co.