Removal of old/ damaged rack segment (16 Nos.) and Re-fitting of New rack segment in 24/96 Krishna Dragline working at Nigahi project.

Amount

Name and scope of work : Removal of old/ damaged rack segment (16 Nos.) & Re-fitting of New rack segment in 24/96 Krishna Dragline working at Nigahi project having scope of work as follows- 1. Complete cleaning of base assembly of dragline, consisting of nearly 38 chambers where waste lubricants get accumulated. 2. Scraping of cardium, grease and mud from the man hole and complete cleaning of Rack segments and mountings. 3. Removal of 16 nos. old Rack segments and 03 nos. Rotate shaft & pinion. 4. Complete welding of 128 nos. oval base plates for mounting of rack gears. 5. Surface grinding of all 128 nos. Welded mounting holes in base pate. 6. Placing of 16 nos. New Rack Segments on base. 7. Marking and indexing of 16 no’s Rack segments mounting holes on top surface of base and subsequent removal of Rack segments for drilling and other activities. 8. Drilling and reaming of 128 nos. New welded holes of base plates of 50mm dia. 9. Grinding and cleaning of drilled holes and drilled chips from the base. 10. Placing of new rack segments one by one on top surface of tub to match the drilled holes. 11. Fitting of 128 nos. barrel bolts and 96 nos. rack segment stud and tightening of these bolts. 12. Fitting of 03 nos. Rotate shaft and pinion. 13. Lubrication of rack and pinion and final checking and inspection. 14. Necessary safety measure has to be taken by the contractor as per safety norms of NCL. Note- Welding electrode 7018 about 2 kg /hole (approx) - 256 kg , Gouging electrodes - 60 kg (approx) , Barrel bolts , their nut & washer -128 Nos, Stud Rack segment & Nut - 96 nos , Hydraulic Torque Wrench -1 No. , Jack 50 Tonne - 1no. will be provided departmentally. Maximum likely manpower to be deployed per shift : 22 no ( Highly skilled -01 no , Skilled-08 no , Semiskilled- 09 no , Unskilled-04 no) . Work to be done in two shifts

Removal & replacement of all (16 nos) Rack Segments & removal & fitment of 03 nos rotate pinion shaft.

Cost/ charges for cleaning of working area including labour charges, contractor profit etc. (labour consisting of unskilled manpower)

Cost/ charges for complete Removal & replacement of all (16 nos) Rack Segments & removal & fitment of 03 nos rotate pinion shaft. including labour charges, contractor profit etc. (labour consisting of Skilled Fitter, Skilled Welder , skilled machinist and Semi skilled Helper manpower)

Cost/ charges per Hole for Hiring of Heavy duty auto feed radial drill machine with all accessories for all the above jobs (Total 128 holes )

Cost/ charges per Hole for Hiring of drill bits , drill guides , boring fixture & other attachment reamers , etc. with all accessories for all the above jobs (Total 128 holes )

Cost/ charges for Hiring of 3 nos welding machines , etc. with all accessories for all the above jobs for 45 days

Cost/ charges for Hiring of 2 nos Grinding machines , etc. with all accessories for all the above jobs for 45 days

Cost/ charges for Hiring of 2 nos Gas cutting sets , etc. with all accessories for all the above jobs for 45 days

Cost/ charges for Hiring of 5 nos Hand lamps with bulbs , etc. with all accessories for all the above jobs for 45 days

Cost/ charges for Hiring of 4 nos Exhaust fans , etc. with all accessories for all the above jobs for 45 days

Torquing of barrel bolts and stud of rack segment

Cost/ charges for Torquing of 128 nos barrel bolt of rack segment including labour charges, contractor profit etc. (labour consisting of skilled fitter , skilled welder , semiskilled helper manpower)

Cost/ charges for Torquing of 96 nos joint studs of rack segment including labour charges, contractor profit etc. (labour consisting of skilled fitter , semiskilled helper manpower)

Cost/ charges per Bolt for Removal of cover bolts (Total 964 nos bolts )

Cost/ charges per Bolt for Tightening of cover bolts (Total 964 nos bolts )

Cost/ charges for Liquid Nitrogen (SAP code : 4600001196)

Cost/ charges for Rubber Gasket (1.5 ' x 2 ' x 6 mm )

Cost/ charges for Highly skilled supervisors including labour charges, contractor profit etc for supervision of complete all above mentioned jobs at Sl No. 1.00 to 5.00 (labour consisting of Highly Skilled manpower)

Total impact of GST for the purpose of CTC

KOHLI & SONS (BID ID -1170774)