NIT No-14 EE (SDW) II/ (23-24) Item No. 03

Repairing of Detroiter No.1 by carrying out the following works: - Dismantling of complete Detroiter after cutting the fasteners with gas cutter & manual labours & shifting the same from the site.

Draining and removing the deposited grit in the chamber with the help of pump set, manual labour and tool and tackles.

Overhauling of centre turn table after providing the temporary structure to lift the drive head gear, repairing of drive head gear including re-metaling and grinding the inside colour, checking the trueness and greasing/ oiling the same as required.

Fabrication/ Supply/ Fixing of M.S. squizer blades made out of M.S. angle of size 65x65x6mm & M.S. sheet of size 1 mtr. Long x 150mm app. And 8mm thick with rubber squeezer of 100% synthetic rubber. Fixing with nut & bolt i/c drilling hole as per sample.

Repair the main worm shaft including machining the shaft, replacement of bushes and bearing No. 1313 K. Make : DJB approve make.

Repair of Detroiter arms i/c replacement of damaged portion of the structure as per sample and compete in all respect, using MS channel & angle iron of existing size.

Civil work of damaged foundation after removing of old channel & fixing of new.

Painting of complete structure. Painting with red oxide epoxy paint of underwater portion & upper portion painted with enamel paint with two coats of epoxy paint.

Repairing of Rake Classifier No.1 at 37(15) MGD, STP at Okhla by carrying out the following works:- Dismantling of complete structure of classifier from the pit channel with the help of heavy labour, cutting the Nut Bolt with the help of Gas cutter, cutting the frame of the main arm. Removing & shifting to the workable place.

Providing set of Guide Shaft & Pins fabricated as per sample in terms of shape, size, MOC i/c machining the pins as per bush size.

Replacement the set of Bushes both end collared. The job i/c providing the new bushes with, centre/ pins as per manufacturers standard in terms of size MOC & finishing as per shaft.

Renovation and fixing of main crank shaft by machining as per sample in respect of shape and size as per site requirement.

Providing and fixing the new scraper assembly having new scrapers. 30 Nos. made out of M.S. flat, Length of each scraper will be as per site requirement.

Providing the nut bolts of different size and hardware goods for the fixing of complete structure on site.

Dismantling of 3 HP 415 V 3 Phase 960 RPM Crompton greaves make induction motor. The work also includes supply, boring, installation of new coupling as per requirement and servicing with Dr. Back varnish. Assembling the complete motor and put on the foundation, tightening of the nut bolts.

Painting of complete structure. Painting with red oxide epoxy paint of underwater portion & upper portion painted with enamel paint with two coats of epoxy paint.

Testing & Commissioning the complete Grit Chamber including filling of lubricating oil completion in all respect.

arun engineers and contractors