| 1 | 1 | Transportation of the damaged Bowl assembly of the pumping unit from the site to workshop for repairs using manual labour, mechanical transport, mobile crane etc. Back shifting to site LIS Ranjan after repairs, unloading. Complete job. | Item 1 | 1 | Job |
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| 2 | 2 | Dismantling of bowl assembly by way of opening and extraction of 3no. Bowl cases, 3 No. stainless steel impellers from SS impeller ( pump ) shaft in sequence by removing / disengaging all nuts and bolts, lock rings, back plate of each bowl case with fabricated pullers, heavy duty tools and tackles without damaging of cast iron bowl and SS impeller. Proper stacking of each dismantled parts / components. Complete Job. | Item 2 | 1 | Job |
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| 3 | 3 | Rebuilding of C.I. Bowl case by way of welding, rebuilding the damaged worn out portions of internal as well external surfaces of the bowl case with specified welding C.I. electrodes. Job also involves repair, reconditioning of elongated holes of flanged ends, the pump shaft bore hole of bowl after remetalling and turning, finishing it to true size, providing and fitting of new casing studs, Nitrile compressed rubber lined leaded bronze discharge bush in the pump shaft collar groove, providing / fitting S.S. lock plates and washers, fine grinding of bowl case with pencil grinder, rebuilding, turning, finishing to size the seat of the impeller bearing ring in each bowl case and having suitable clearances. Complete job. | Item3 | 3 | Job |
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| 4 | 4 | Providing of new cast / fabricated and machined leaded bronze impeller bearing ring in reconditioned seat having proper clearances with the impeller. | Item 4 | 3 | Job |
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| 5 | 5 | Strengthening and reconditioning the AISI-410-SS close type impeller by way of rebuilding of all worn out portions such as impeller vanes, bore hole and keyways by way of remetalling in layers with suitable SS welding electrodes, then machining, turning, grinding, polishing and finishing of the impeller to true/standard size and specification so as to fit on leaded bronze bearing ring with suitable clearance. The job includes balancing of impeller statically and dynamically. Complete job. | Item 5 | 3 | Job |
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| 6 | 6 | Fabrication and providing AISI-410-SS impeller shaft (pump shaft) to bowl assembly of JYOTI make 20 cusec discharge VT pump of size 85 mm dia. x 2850 mm long as per sample, size and specification including appropriate locking keyways. Sample can be inspected at LIS Ranjan. | Item6 | 1 | Job |
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| 7 | 7 | Strengthening and reconditioning of C.I. Bell mouth by way of remetalling the internal and external worn out surfaces, machining, turning, grinding to size. Also rebuilding of smaller and larger flanged ends by facing, machining and with proper alignment, reconditioning and bringing the elongated holes of flanges to stud size. Rebuilding, turning, finishing to size the collar for impeller bearing ring in co-eccentric position. Complete job. | Item7 | 1 | Job |
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| 8 | 8 | Strengthening and reconditioning of C.I. discharge case (enlarger) by way of rebuilding of worn out portions at internal and external housing by remetalling with superior quality of welding electrodes and then finishing to true size by turning, machining, grinding along with rebuilding of elongated flange holes to new stud size after extraction of broken studs and rethreading of new oversize holes. Providing and fitting of new studs of specified material. Complete job in all respects. | Item8 | 1 | Job |
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| 9 | 9 | Re- Fabrication of MS Strainer by way of welding of MS machined top flange having 14 nos M24 threaded holes (for adaptibility & fitment to main Bowl assembly ),duly provided with welded mesh for restriction of floating / suspended trash. Providing of 14 nos HT bolts of size M24 along with the strainer. Complete job | Item 9 | 1 | Job |
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| 10 | 10 | Complete assembling of the bowl assembly by way of mounting of three no’s AISI-410-SS impellers on 85 mm dia., 2850 mm long pump shaft with three no. bowl cases, one no. enlarger, one no. bell mouth, one no. stiffener in sequences at their respective places with key holding rings, back washers suitable with required allowances. Re-connecting of M.S. strainer to bowl assembly. Complete job in all respects. | Item 10 | 1 | Job |
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