NIT No-07 EE (SDW) II/ (20-21) Item No. 3

Renovation/ Strengthening of Grit Removal unit No.2 along with allied works at 16 MGD STP, by carrying out following the works: - FOR DETRIOTER UNIT:- Isolating the classifier from the hydraulic system (Inflow and outflow sides) by operating Sluice Gates and providing gunny bags to prevent the access of liquid to the unit from the gates. Draining out the stagnated effluent de-sludging & cleaning the classifier & Grit Chamber with the help of sump pumps and D.G. Set etc. so as to make the conditions at site, workable.

Dismantling the electric motor, Primary reduction Gear Box and central Gear Box by cutting of Nut-Bolts and Fasteners and shifting these to a safe workable place with the help of lowering/ lifting tools and tackles.

Dissembling of primary reduction gear box.

Providing of sprocket chain, wheel as per sample fabricated in respect of size, finishing & MOC.

Providing of worm gear, pinion, bushes fabricated as per sample in respect of size, finishing.

Providing of gear oil Make: - Servo.

Re-fixing of primary reduction gear box after resembling of all above parts and alignment with motor. Fixing of sprocket chain, oil seal & filling of oil.

Providing set of central gear, pinion, & set of bushes fabricated as per sample in terms of shape, size, and machining etc. in ready to use condition.

Re-assembling of main Gear Box complete mechanism like Gear pinion, bearings i/c fixing of oil seals and filling of lubricating oil.

Dismantling of worn out scrappers arms structures along with arms with the help of gas cutter, all tools & tackles

Fab./ Providing of complete set of scrappers M.S. sheet of size 900 mm Long x 150mm width approxas per existing size with rubber squeezers & M.S. flat.

Fab./ Providing of M.S. Angle Iron 65X65X8 MM approx 35 meter as per existing size for scrappers Arms.

Providing of M.S nuts & bolts of different sizes.

Labour charges for fixing of above M.S angle irons for scrapper arms, bottom scrappers along with squeezers i/c making hole for tightening of nuts & bolts i/c all welding & cutting works.

Cutting of worn out corroded M.S. sheet with the help of Gas cutter, all tools & tackles.

Providing of M.S. chequered sheet having 8 mm thick.

Fixing of above M.S. sheet on the walk way by cutting, welding with required size.

Providing Red oxide metal primer in 20 kg packing. Make: - Asian/Nerolac/Burger

Providing synthetic enamel paint in black/ phirozicolour in 20 Ltrs. Packing. Make: - Asian/Nerolac/Burger

Painting of the complete structure after removing of rust with brush with one coat of primer, two coat of enamel paint i/c auxiliary material like old dhoti, emery paper, brushes etc. `

Testing and commissioning of Detroiter system after general servicing of starter, making electric connection and testing of the same on load at site. The work includes contingency charges, providing of heavy labour including any risk and cost of the labour etc.

FOR RAKE CLASSIFIER Dismantling of Electric motor, Reduction gear box by cutting of Nut Bolts with the help of Gas cutter and shifting these to a safe place.

Dismantling of Rake Classifier by cutting of old & rusted fasteners with the help of gas cutter and shifting the same on the ground level with the help of manual labour/ mobile crane.

Fab./Providing 54 set of Bottom scrappers with Rubber squeezers with guide channel made out as per sample in terms of shape, size & i/c welding work.

Fixing charges of above scrappers i/c making holes for fixing squeezers, tightening of nut bolts etc. i/c all welding/ cutting works.

Erection the complete structures at site after assemble on the ground level and erection with the help of mobile crane.

Alignment of the complete structure with required Civil works.

Dissembling of primary reduction gear box.

Providing of sprocket chain, wheel as per sample fabricated in respect of size, finishing & MOC.

Providing of worm gear, pinion, bushes fabricated as per sample in respect of size, finishing.

Providing of gear oil Make: - Servo.

Re-fixing of primary reduction gear box after resembling of all above parts and alignment with motor. Fixing of sprocket chain, oil seal & filling of oil.

Providing Red oxide metal primer in 20 kg packing. Make: - Asian/Nerolac/Burger

Providing synthetic enamel paint in black/ phirozicolour in 20 Ltrs. Packing. Make: - Asian/Nerolac/Burger

Painting of the complete structure after removing of rust with brush with one coat of primer, two coat of enamel paint i/c auxiliary material like old dhoti, emery paper, brushes etc. `

Testing/ commissioning of complete classifier system after general servicing of starter, motor, making electric connection and testing of the same on load at site. The work includes contingency charges, providing of heavy labour including any risk and cost of the labour etc.

Prime India Associates