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| 1 | Isolating the PST by operating sluice gate and providing gunny bags to ensure no flow in the PST, Dewatering the PST with the help of submersible pumps and. Cleaning the PST with the help of machines/manually for execution of work. |
| 2 | Safety arrangement as per NHRC guidelines to execute the work safely which includes safety belt ,gumboots, helmet, oxygen cylinder, face mask etc. |
| 3 | Dismantling of motor, Primary gear box and other mechanical fixtures from the top of center mechanism and shifting to workable safe place. |
| 4 | Making temporary platform in the PST around the central post as per site requirement. |
| 5 | Dismantling of central cage & turn table, lifting & taking out from the PST & Shifting to ground level etc. |
| 6 | Dismantling the damage structure of the both side scrapper arm structure by cutting the nut-bolts with gas cutter and shifting the same to a workable place with the help of mobile crane &heavy labour etc. |
| 7 | Repairing of center drum i/c replacement of the damaged stiffeners of the drum and making required patch work with 6mm thick (15sq meter)M.S Sheet with the help of electric welding as per site requirement. |
| 8 | Repairing of damaged vertical structure of central drum, M.S. angle iron of size 150x150xx8mm and 75x75x8mm by welding & providing nut bolt etc. as per requirement at site.(150 kg) |
| 9 | Repairing/Overhauling of the primary reduction gear box fixed on the top and central mechanism i/c replacement of damaged spares of the gear box and central mechanism, the job also includes replacement of bearing(roller/ball) & gear oil etc. for the same. Make of Bearings-DJB approve make |
| 10 | Strengthening of rotating structure and scrapper arm by providing/fixing damaged M.S. Angle size 50x50x6mm, 65x65x8mm, 75x75x8mm as per sample in terms of shape, size & MOC.(400 kg) |
| 11 | Providing and fixing of SS Tie Rod of size 16 mm dia length 5 Mtr. approx. |
| 12 | Replacement/Renovation of the bottom scrapper made out from 8mm thick M.S. sheet of size approx.2700x200x8mm along with replacement of rubber squeezers after making holes at equal distance and fastening through the nut bolts. |
| 13 | Fabrication the scum box (size 1800x1500mm approx.) made out of 6mm thick M.S sheet i/c providing the heavy duty out let pipe of 200mm dia and 8mm thick, including flange with nut bolts & gasket. Fixing the box scum box with the help of angle/channel after alignment the scum box with the help of all tools and tackles and loading unloading. (500 kg approx.) |
| 14 | Dismantling of worn out V-notch of rusted nut bolt with the help of manual labour, gas cutter and tools & tackles as per site requirement. |
| 15 | Providing and fixing of V–notch made out fiber sheet by S.S nut bolts with fasteners and civil work as per requirement. |
| 16 | Painting the complete structure by carrying out following works-Providing the metal primer red oxide (in 20Ltr.Packing). |
| 17 | Providing the synthetic enamel black paint (in 20Ltr.Paking)Make-Asian/Nerolec/Berger |
| 18 | Providing of thinner(General propose) for diluting the paint(in 20Ltr.Packing) |
| 19 | Painting the complete structure with one coat of epoxy primer and two or more coat of enameled paint as per requirements. |
| 20 | Assembling, Testing and commissioning of complete unit on NO load /full load after removing gunny bags and temporary plate form. The job also includes fixing up the new belt to motor-gear box and varnishing of 2HP motor with Dr. Beck Varnish. Please Enable Macros to View BoQ information |
