NITNo7ItemNo1

Service overhauling of the flow control valve for the PST No 2 with the help of manual labour, for its smooth operation. The job includes replacement of the broken GM Garari & other consumable items & per sample as per site requirement.

Complete de-watering of the stagnated sewage water from the PST No 2 by providing of sludge pumps with delivery pipe by mechanical arrangement like chain block with temporary cabling.

Removing of the silt & floating material from the PST which will be left out in the bottom of the PST after the dewatering work with the help of manual labour.

Cleaning of the sludge drain out line of PST No 2 by applying back pressure in using suitable size of submersible pump in the launder of the PST.

Making of the temporary platform in the PST No 2 around the central cage with all T&P for proper shuttering arrangement for working around the turn table with the help of brocket with rassa, bamboo, wooden balli and other arrangement. This also includes the cost of dismantling of shuttering after completion of work.

Repairing of Centre Turn Table of the PST No 2 by carrying out the following works Making of support for drum which in clamped / bolted with turn table. The support should make in such way to hold the drum in proper position from the level of appox. 25 feet above the bottom floor of by making proper mechanical jack and support dismantling the drum from the turn table & Making of support from bottom to vertical arm support with bolted system of scraper of both arm of with scum arm holding arrangement to support of vertical member by jacking etc. and making proper wooden sleeper in four corner in the pit of PST where scraper in moving

Removing of worm shaft of main gear from the gear box by removing of broken bearing with help of bearing puller, removing of main gear from the turn table with help of suitable lifting arrangement and also remove the main gear from the turn table and kept safer side so that the bottom bearing balls may be removed in proper way.

Repairing of the center pinion and bearing housing of the turn table.

Supply of steel ball of proper of size 38 or 40 mm, as per the site requirement, in round shape made of bearing steel duly heat treated grinding.

Repairing of the existing Strip Liner (Top and Bottom) for making it suitable for the new Steel Balls. The job also includes replacement of damaged portion of the strip liner, if any, as per site requirement.

Fixing of steel balls in proper way and fixing of main worm gear in alignment of balls so that the movement of the steel ball with worm gear should be vibration free & smooth and closing of turn table with help of top plate by bolts etc. including providing of oil sealing arrangement so that the oil should not be leakage from the turn table.

Fixing charges of center cage along with the turn table by heavy labour arrangement along with the welding, fitting and helper along with all required tools and tackles, chain block etc. as required by job.

Renovation of Scrapper arms of the PST No 2 by carrying out the following works:

Dismantling charges of complete structure like vertical Center cage – 1 No, Bottom Scrapper Arm – 2 Nos., Upper Scum Arm- 1 No. The job also includes removing the scrap from the PST & depositing the same in the store of the engineer in charge.

Fabrication & Supply of the bottom Scrapper Arms made from MS Angle duly fabricated in triangular shape as per the size & length of the existing bottom arms and site requirement.

Fixing of scrapper arm after fabricated.

Fabrication & Supply of the Upper Scum Arm made from MS Angle duly fabricated in triangular shape as per the size & length of the existing bottom arms and site requirement.

Replacement of Top scrapper assembly fixed with the scum arm to remove the floating material from the PST i/c providing the scrapper made out from heavy duty pipe and fixing the 4 ply nylon thread scrapper with the nut bolts.

Supply of Tie bolt made from SS the size of tie bolt 40 mm dia x 300 mm long with 4 No. nuts adjuster of arm with CC of bottom level of PST by adjuster of tie bolts.

Supply/ fixing of M.S. Scraper made from MS steel of 6 mm thick in L shape from MS plate of size 300 mm width x 3 mtr long with rubber squeezes of size 100 mm x 3 meter x 3 mm thick between the bolt and fixing at bridge.

Mechanical Balancing of both the bottom arms by making proper distance between the rubber scraper and floor of PST etc. by tie bolts of both end etc.

Strengthening of Centre drum of PST by replacement of the rusted & damaged MS Angles of size 75x75x6 mm in round shape and also vertical & horizontal MS angle of size 75x75x6 mm as required by job duly welded & nut bolt. The job also includes repairing of horizontal channel arm and MS sheet of the drum as per site requirement.

Repairing of Reduction Gear Box installed on the top of the turn table of PST by carrying out the following works: Dismantling & removing of the Gear Box from its foundation after removing the induction motor from it.

Fabrication & Supply of EM 24/ EN 8 worm gear with shaft

Replacement of the bearing no 32210. Make SKF/FAG/NSK

Replacement of the bearing no 6318. Make SKF/FAG

Supply of the chain sprockets as per sample

Supply of the Chain made out of EN-24 metal as per sample with 25 mm pitch

Replacement of oil seals as per sample

Repairing of gear box body including boring of heavy duty machine making & fixing of new MS Bearing housing.

Assembling of gear box after replacement of above parts. The job also includes fixing of gear box at site and put the same in working order after fixing of motor & making of electric connection.

Removing of old paint from the structure with help wire brush, emery paper. The job also includes painting one coat of red oxide primer, two coats of synthetic enamel black paint on bridge & orange on railings of bridge as required by jobs.

Testing/Commissioning of the PST after complete in all respect on no load / full load after in presence of the engineer In charge.

paramount systems

SANJAY SALES CORPORATION

MITTAL TRADING COMPANY