83/MID/AN

Strengthening of 4.5 cusec discharge 36m head horizontal centrifugal pump of pumping Unit No.1, installed at LIS Nud. The job involves de-coupling of pump from the motor and removing top cover of the HC pump, extracting the internal impeller assembly together with bearing brackets and shifting the same to workshop by using mechanical transport. Complete dismantling of the impeller assembly in the workshop. Rebuilding of pump shaft and impeller by using good quality electrodes. Thereafter turning/machining of rebuild pump shaft and impeller on lathe machine for proper size . P/F of 2-No bushes & 2-No bearings as per sample. Re-assembling of impeller shaft assembly & shifting back to L.I.S. Lowering and 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. Setting the foundation by means of replacement of old worn out studs. Job also includes replacement of worn-out nuts, bolts and bushes of the existing coupling pulley along with tyre. 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, out station charges etc. Complete Job

Strengthening of 5 cusec discharge 36m head horizontal centrifugal pump of pumping Unit No.3, installed at LIS Nud. The job involves de-coupling of pump from the motor and removing top cover of the HC pump, extracting the internal impeller assembly together with bearing brackets and shifting the same to workshop by using mechanical transport. Complete dismantling of the impeller assembly in the workshop. Rebuilding of impeller by using good quality electrodes. Thereafter turning/machining of rebuild impeller on lathe machine for proper size . P/F of 2-No bearings as per sample. Re-assembling of impeller shaft assembly & shifting back to L.I.S. Lowering and 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. Setting the foundation by means of replacement of old worn out studs. Job also includes replacement of worn-out nuts, bolts and bushes of the existing coupling pulley along with tyre. 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, out station charges etc. Complete Job

Strengthening of 100 HP 3 phase induction motor installed at LIS Nud. 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 driving end 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

Repair /strengthening of 100HP oil immersed star delta starter of pumping Unit No. I &3 installed at site of LIS Nud by complete replacement of worn out G.M nuts and washers, copper fingers, contacts,(moving and fixed) as per sample. Drainage of T.oil. Proper cleaning of tanks by removing the deposited carbon and other deposited material. Heating of T.oil to make it completely moisture free. Providing/filling of T.oil 10 ltrs. Approx. Replacement of worn out/burnt copper thimbles of cables by p/f of new thimbles duly crimped and taped. Connecting power supply & testing on load. Complete job includes the cost of material, labour charges and other misc. charges at site. Complete Job

Strengthening of foot valves (200 mm dia) of pumping unit no. 01 ,02 and 03 of various capacities at site of LIS nud by decoupling the foot valve by cutting/unfastening the nuts and bolts from suction pipe. Extraction of foot valves out of canal 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.. 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.

M/S ISHAN ELECTRICAL and MECH. ENGG. WORKS

M/S UK MECH AND ELECT ENGG WORKS

M/s RK Elect. Mech. Engg and fabrication works