157/MID/AN

Repair to 3.5 cusec discharge 40 m HC pump unit no. 2 installed at LIS Kotgarhi H/L. The job involves decoupling of the pump from motor by unfastening the coupling nuts and bolts by using skilled technicians . The job further involves taking out impeller shaft assembly by unfastening the nuts ,bolts , studs and shifting the same to workshop by using manual labour and mechanical transport . Dismantling of the impeller shaft assembly and separating shaft, impeller and bushes. Rebuilding of shaft at damaged spots by applying new material so the shaft should be balanced then finishing to proper size .P/F of 2-Nos. bearings ( 6309) & 1-No bush as per sample. Re-assembling of impeller shaft assembly & shifting back to L.I.S. Greasing of all the parts. Fitment of impeller shaft assembly in the pump at proper position & closing the top cover by p/f of new nuts, bolts, washers and packing. Job also includes providing / fitting of gland packing , greasing work etc. Thereafter coupling with motor, alignment setting, testing of pump on load. Complete job includes the cost of material, labour charges, to and fro carriage charges, hire charges of tools and tackles etc. Complete Job

Repair to the leaking portion of 300 mm dia suction pipe of pumping unit no. 2 at LIS Gurha-1. The Job involves dismantling of the suction pipe by using manual labour and cutting the rusted nuts and bolts by gas cutter, suitable tools and tackles . There after repairs to suction pipe by way of welding of leaking section in double layers from all around and providing / welding of M.S plate collar (suitable thickness) as overlap joint for strengthening. Welding with one root layer and two additional layers with 3.14 mm and 4mm I.S marked M.S welding electrodes to fill the grooves between the pipe, welding to be done by specialized skilled workman , handling with proper tools , tackles, employing semi-skilled workman and suitable tools /tackles. The weld should be spurt and gap free and to be done with good quality electrodes and slag material to be chipped off. Fitting of suction pipe fastening the flanges by using new , bolts and washers.Testing for any leakages. Complete job includes cost of material, hire charges of welding set and diesel generator set, labour charges, manual handling, transportation charges and hiring charges of tools and tackles. Complete Job

Impregnation of 100 HP three phase Induction Motor no. 01 installed at LIS Kotgarhi HL . Repair of 100HP oil immersed star delta starter of pumping Unit No. 2 installed at site of LIS Kotgarhi H/L by complete replacement of worn out G.M nuts and washers, copper fingers, contacts, (moving and fixed) , tripping coil as per sample.. Replacement of damaged copper thimbles of cables by p/f of new thimbles duly crimped and taped. Providig/topping up up of 5 ltrs T. oil Connecting power supply & testing on load. Complete job includes the cost of material, labour charges and other misc. charges at site. Complete Job

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TRIKUTA ELECTRICAL AND MECHANICAL WORKS