67/MID/AN

Strengthening of HC pumping Unit No. 2 installed at LIS Kotgarh H/L . The Job involves decoupling & dismantling of 3.5 cusec 36 metre head HC pump coupled with 100 HP three phase induction motor for the purpose of its repair / strengthening. Further dismantling the pump top cover from its installed position & shifting of the pump assembly by manual / mechanical means to workshop. Separating shaft, impeller and bushes. Repairing of pump shaft and rebuilding of impeller using good quality electrodes. Turning/machining of rebuild impeller and pump shaft on lathe machine for proper size. Repair to key ways .Providing/fabrication of both the bushes as per sample. Making necessary repairs to bearing housing. P/F new set of bearings as per sample. Assembling of the pump parts. Carriage / transportation of the pump assembly back from workshop to the site of installation at LIS. Fitment of pump along with replacement of rusted / damaged studs, gaskets, alignment setting at its position, p/f of gland packing, greasing work etc. Aligning & coupling the pump & motor. Complete testing & commissioning of the pumping unit on full load. Job includes cost of all material, transportation charges, head load and labour charges for skilled/semiskilled labour, hire charges for tools & tackles. Complete Job

Strengthening of 100 HP 3 phase induction motor installed at LIS Kotgarhi H/L. The job involves dismantling of motor from its installed position after disconnecting the power supply of all three phases. Dismantling the motor by unfastening the foundation nuts and bolts and also decoupling from the pump. Lifting the motor out of the pump house with chain pulley block with proper care to prevent any damage. Shifting the motor from LIS to workshop with the help of manual labour. mechanical transport to the workshop . Complete dismantling of the motor, extraction of rotor . P/F of both driving end and non driving bearing as per sample. Extraction of burnt winding from the stator, cleaning of stator with petrol .P/F of new winding wire of suitable gauge & size in the stator, varnishing the stator winding with superior quality of varnish. Drying the stator winding with hot air circulation process. Assembling of the motor and shifting back to L.I.S. Refitting the motor at its installed position and coupling with pump by way of lowering it with the help of chain pulley block, making of electrical connections, alignment with pump , testing of motor on full load. Complete job includes the cost of material, labour charges, hiring charges of tools & tackles, transportation charges. Complete job

Repairs to 100 HP, ATS Starter of pumping unit no 01 installed at LIS Kotgarhi H/L involves complete replacement of worn out G.M Nuts and washers, bakelite strips, fingers, contacts moving and fixed as per sample, Replacement of tripping coil of required capacity, complete kit. Complete drainage of T.oil, Providing/Filling of fresh T.oil of required quantity , Replacement of worn-out thimbles of cables etc. Shifting of burnt transformer assembly of ATS Starter to workshop, extraction of burnt windings, rewinding of all three phases of transformer by superior quality of copper wire, shifting back to the site of LIS and installation. Connecting power supply and testing at load. Complete job with material cost and labour charges at the site of LIS. Complete Job

Strengthening of foot valves (300mm dia) of pumping unit no. 01 at site of LIS Kotgarhi H/L by decoupling the foot valve by cutting/unfastening the nuts and bolts from suction pipe. Extraction of foot valves out of river with help of chain pulley block and manual labour. Dismantling of foot valve after unfastening/cutting the nuts & bolts. Cleaning of foot valve from mud and silt. Shifting the disc assembly to workshop & repair/strengthening by way of rebuilding/remetalling the disc for proper alignment and balance to fit in the seat for no leakage of water. Fabrication of new strainer as per the size. Assembling the foot valve and Providing /fitting of new rubber packing sheet, nuts and bolts etc. lowering the foot valve in the river & coupling with suction pipe by providing new rubber packing sheet, nuts bolts and washers. Checking for leakages. Priming the pump & testing/commissioning on full load. The job includes cost of material, labour, transportation etc as per site conditions of LIS. Complete Job

Strengthening of Sluice Valve (300 mm dia) of pumping units I installed at LIS Kotgarhi H/L. The job involves dismantling of sluice valve from its installed position by way of unfastening/cutting of all rusted nut & bolts with the help of gas cutter/suitable tools &tackles and shifting to workshop. Complete dismantling of sluice valve into body and bonnet .Extraction of stem rod with nuts and flap. Fabrication of new stem rod nut as per the size of the old stem rod. Fabrication of new glands as per sample .Making of proper seat for resting of flap. Complete assembling of sluice valve and providing of new gland and rubber packing .Shifting of valves to the site of LIS and reinstallation by P/F of new nut, bolt and washer replacing all worn out nuts/ bolts. Testing and commissioning. Complete job includes the cost of material, labour and transportation charges to and from the LIS. Complete Job

Repair/ Strengthening of Reflux valve (300mm dia) of pumping unit no.3 installed at LIS Kotgarhi H/L . The job involves dismantling of the reflux valve by way of cutting of the rusted nuts and bolts with the help of gas cutter, removing of flap. Fabrication of new flap and bush 1 No. as per sample . Dismantling of shaft from both sides of flap and fabrication of new shaft as per the actual size . Fitment of reflux valve and fitting of new nuts, bolts and washer in place of worn out nuts and bolts. Complete job includes the cost of material, labour charges, transportation charges etc. Complete Job

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS

G S ENGINEERING WORKS