59/MID/AN

Strengthening of 10 cusec discharge 33 m head H.C pump no. 03 at LIS Gurha-I .De-coupling of pump from the motor and removing the top cover, extraction of shaft and impeller assembly together with bearing bracket and shifting to the workshop by using manual labour and mechanical transport. Complete dismantling of impeller assembly. Fabrication of new pump shaft as per the size . Rebuilding of impeller, thereafter grinding/finishing as per true size . Providing/ fitting of 2no. DE and NDE bearings, (2nos) and bushes in lieu of worn out ones. Fabrication of glands and studs with nut. Repair to bearing brackets. Re-assembling of impeller shaft assembly and shifting back to site and there after lowering at proper position, placement of oil seal and closing the top cover along with P/F new nuts,bolts and studs coupling with motor. P/F of gland packing etc.and testing on no load. The Job includes cost of material, labour(skilled and unskilled), loading charges, hire charge of tool and tackles, to and fro carriage charges. Complete job

Strengthening of 200 HP 3 phase induction motor installed at LIS Gurha-I. 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 broken bearing. Repair to rotor shaft by depositing material by welding. Turning and machining of the rotor shaft for proper size. P/F of 1 nos. 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

Strengthening/ repair of foot valve assembly of pumping unit no.1& 2 installed at LIS Gurha-I. The job involves disconnecting / dismantling of the foot valve assembly from the suction pipe by deploying manual labour and allied tools & tackles. Shifting / transporting to the workshop. Cleaning by washing with water to make the foot valves completely silt free. After drying them completely, carrying out necessary repair works on the valve surfaces and flanged joints by welding using good quality electrodes. Dismantling of damaged / worn-out foot valve mechanism with flap & rings etc. Complete repair to the damaged flap seat, flaps and hinges etc. Carrying out repairs to flap seats etc. Providing / fitting of new leather washer cut as per size of the flap plate. Reassembling the foot valve and transporting back to the installation site at LIS.Fitting the valves to the respective suction lines with replacement of damaged rubber gaskets of flanged joints and worn-out nuts, bolts etc. Complete job including cost of material, labour charges, transportation charges and hire charges for tools & tackles. Complete Job

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