Press NIT NO. 08 (2020-2021) ITEM NO.1

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

Dismantling of Central mechanism, Reduction gear box with motor and other attached mechanical fixtures from the top of turn table & scum arm by removing of nut bolts etc. removing of worm shaft from the gear box and shifting to workable safe place.

Making temporary platform for workable place in the PST around the central caze with all T&P as thrust supports jacks, MS pipe , MS plate, rope wire complete with all safety equipment.

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

Supply & Fixing of scum arm with MS plate 18 m long made of plate channel of size 100 x 50 and replacement of MS angle of size 75 x 75 x 6.

Repairing of scraper arm by cutting of worm out member of arm with gas cutting and fixing of new M.S angle of size 65 x 65 x 6 mm & 75 x 75 x 6 mm, and 50x50x6 mm, MS Plate 8 mm of different length is to be welding in proper support arm & replacement of warn out members of both arms of PST.

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

Providing / fixing of M.S scraper made from MS steel of 6 mm thick from MS plate of size 200 mm width x 3100 mm long with hard squeezer as per sample.

Supply & Installation of hard threaded rubber squeezers. ( Approx. 4” x 2.85 m)

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 leath 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 including repairing/ overhauling and housing straightening repair, machining, polishing, levelling of bevel gear , bushes and replacement of damaged ball bearing 100-125 no. approx complete centre mechanism.

Pasting of sealing arrangements leak proof for oil from chamber with cotton and gland for prevent of oil up to required level and fixed of middle part of centre mechanism to proper alignment.

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.

Repairing of damaged/ rusted PST bridge path way to chequered sheet 8 mm thick along with strengthening of bridge base frame (support)100x100x8 including cutting, welding and installation complete in all respect.

Erection/ Installation of the complete structure PST after assembly/fixing the above material with provision of weight to align the same

Painting the complete PST structure after removing the rust with the wire brush and painting with one coat of epoxy primer and two coats of enamelled paint as required at site.

To & Frocharges/ Loading & unloading with all allied other hardware items with complete charges.

Alignment,Testing & commissioning the complete PST after completion in all respect on No load/Full load.