56/MID/AN

Strengthening of HC pumping Unit No. 01 installed at LIS Manda -II. The Job involves decoupling & dismantling of 4 cusec 44 metre head HC pump 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 no. 02 installed at LIS Manda -II . 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 by using skilled labour , tool & tackles. Thereafter shifting the motor to workshop by mechanical transport . 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 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. Providing/fitting of cooling fan as per specification. 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/reconditioning of foot valve ( 200mm dia) assembly of pumping unit no 2 installed at LIS Manda-II. 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.

Strengthening of Sluice valve unit no. 02 installed at LIS Manda-II involves removing the bonnet and glandes of sluice valve by way of cutting of all the rusted nuts and bolts with the help of gas cutter, extracting gasket stem rod with nut and flap. Fabrication of new stem rod in lieu of damaged/wornout as per the sample, making of proper seat for resting the flap .Fitment of sluice valve, replacement of the rubber sheet of sluice valve and gland packing. Providing / fitting of nuts, bolts and washer in place of all the worn out nuts and bolts 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/reconditioning of 100 HP starter of unit no. 1 installed at LIS Manda-II involves disconnecting the power supply and subsequently the cables of the starter and carrying / shifting of the starter by manual head load / mechanical transport to the workshop. Providing / fitting of nuts and washers, Bakelite strips to replace the old worn out ones. Replacement of kit of contacts & fingers as per the given sample and requirement. Cleaning & drying of oil tank. Transporting back the starter by manual / mechanical means to the site of installation. De-moisturizing, raising the viscosity& filtering T.Oil before filling back. Damaged/burnt thimbles of cables to be replaced by providing & crimping of new ones. Connecting the cables, power supply & testing on full load. Entire job includes labour charges, transportation charges, hire charges for tools and tackles and cost of material.

GANPATI ELECTRICAL AND MECHANICAL WORKS

N B Engineering and Electric Works