Replacement of old swing gear box assembly (01 No.) with new assembly including repair of 03 Nos. swing shaft bearing housing of 24/96 Balram Dragline at Nigahi Project

Amount

Scope of Work: 1) Cleaning of working area. 2) Dismantling of swing pinion and swing shaft. 3) Dismantling of old swing gear box from its position after opening foundation bolts. 4) Removal of old gear box. 5) Fitment of New swing Gear assly Box. 6) Alignment of new gear box assembly. 7) Dismantling of 04 Nos. upper and 04 Nos. lower rail segments and 03 Nos. roller cage assembly to remove and insert bearing housing. 8) cutting and removing of old swing shaft bearing housings ( all 3 Nos.) (9) Re-building foundation plates at cut out portion to fix bearing housings. 10) Line boring of re-builded portion to set and weld bearing housings. 11)Aligning all three bearing housings of swing shaft by proper aligning tools. 12) Welding of bearing housing 13) Checking and testing of cracks by NDT Tests and Submision of Test Certificate for Test done. 14) Fitting of gear box cover, pinion and swing shaft. 15) Assembling of dismantled portion of rails and rollers. 16) Note : Welding electrode ( 7018-1) - 60 Kg, welding Electrode Gauging CG-2 or equiv. - 30 Kgs. and Industrial gases as per required will be provided by NCL.

Cost/ charges for cleaing of woring area before and after dismantling of swing gear box assembly including labour charges, contractor profit and any misc. charges etc. (labour consisting of Semi skilled manpower to be deployed as per job requirement)

Cost/ charges for dismentling of swing pinion and swing shaft including labour charges, contractor profitand any misc. Charges. (labour consisting of Skilled Fitter, Skilled Welder and Semi skilled Helper manpower to be deployed as per job requirement)

Cost/ charges for dismantling and removal of old swing gear box assembly and fitment of new gear box assy after placement in appropriate position including labour charges, contractor profit and any other misc. charges (labour consisting of Skilled Fitter, Skilled Welder and Semi skilled Helper manpower to be deployed as per job requirement)

Cost/ charges for dismantling of rail and rollers ( 04 Nos. upper , 04 Nos. lower and 03 Nos. roller cage assembly) including labour charges, contractor profit and any misc. charges. (labour consisting of Skilled Fitter, Skilled Welder and Semi skilled Helper manpower to be deployed as per job requirement)

Repairing of 03 Nos. swing shaft bearing housings :

Cost/ charges for cutting and removing of damaged swing shaft bearing housing , re-building of worn out portion of foundation plate including labour charges, contractor profit and any misc. charges (labour consisting of Skilled Fitter, Skilled Welder and Semi skilled Helper manpower to be deployed as per job requirement)

Charges for line boring to make bearing housing seat in foundation plate required sizse for fixing housing ID1300mm, L-50mm. Volume to be machined/line bored is 2056.70 cu cm for each swing shaft bearing housings. Total 03 Nos. Bearing housings

Cost/ charges for alligning all thee bearing housing of swing shaft by proper alligning tools and welding of bearing housings including labour charges contractor profit and any misc. charges. (labour consisting of Skilled Fitter, Skilled Welder and Semi skilled Helper manpower to be deployed as per job requirement)

Cost/ Charges for DP Test for 3 Nos. bearing housings 6 ( below and above) in each housing (after root, after 3 layers after final layer) 18 job each bearing housing ( Total 03 Nos. housing)

Cost/Charges for NDT (UT) Test for 2 job each bearing housing ( Total 03 Nos. housings)

Cost/ charges for assembling of dismantled rails and rollers including labour charges, contractor profit and any misc. charges (labour consisting of Skilled Fitter, Skilled Welder and Semi skilled Helper manpower to be deployed as per job requirement)

Cost/ charges for Highly skilled Supervisor including labour charges contractor profit etc. for supervision of all the above mentioned job

Hire charges for welding machine 03 Nos. with all accessories for the above mentioned job.

Hire charges for gas cutting set 03 Nos. with all accessories for the above mentioned job.

Hire charges for grinding machine 04 Nos. with all accessories for the above mentioned job.

Hire charges for Hydraulic jack 200T - 02 Nos. with all accessories for the above mentioned job.

Hire charges for hand lamp with bulbs - 04 Nos. with all accessories for the above mentioned job.

Hire charges for exhaust fan - 05 Nos. with all accessories for the above mentioned job.

Hire charges for misc. tools and tackles like hammer, D shackle, crow bars, spanners, jigs and fixtures etc. for the above mentioned job.

Hire charges for special tools for alignment work for above mentioned job.

Total impact of GST for the purpose of CTC