68/MID/AN

Repair of 100 HP three motor of pumping unit no 2 at LIS Aryanpura .The job involves decoupling the motor from the HC pump. Carrying motor manually up the the slope and shifting to workshop through mechanical transport. Dismantling of end covers, Extraction of bearings & rotor from motor. Extraction of damaged winding from the stator. Cleaning of stator with compressed air and requisite chemical cleanser/CCL4. Providing and fitting of new good quality winding wire of gauge and size (as per old sample) in the stator together with replacement of damaged /worn out wedges/strips and p/f of f-class insulation, Application of superior quality varnish (Red Becktol etc.) by spray impregnation process and drying the stator winding with hot air circulation process and thereafter checking the IR value. .Re-assembling the motor after greasing. Carriage / transportation of the motor back from workshop to the site of installation at the LIS. Installation / leveling of the motor over the base frame by providing / fitting of nut bolts, washers etc., making of electrical connections, replacing worn out nuts, bolts for the electrical connection. Alignment & coupling with pump. Complete testing & commissioning of the pumping unit. Job includes cost of all material, transportation charges, head load and labour charges for skilled / semi skilled labour, hire charges for tools & tackles at the LIS.

Strengthening of foot valve (300 mm dia ) of pumping unit no.1 installed at LIS Aryanpura. 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

Repairs to 60HP 3 phase induction motor at LIS kotgarhiL/L.The job involves dismantling the motor by unfastening the foundation nuts and bolts and also decoupling from the pump and disconnecting the electrical connections from the main supply. Shifting of the motor to workshop by mechanical transport . Then complete dismantling of the motor involves extraction of rotor from stator followed by cleaning of stator and rotor using compressed air, organic solvent, CCL4 etc. to remove the dust particles /silt etc. 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 . Shifting the motor back to LIS . Refitting the motor at its installed position and coupling with pump, 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 1.5cusec discharge, 36m head HC pump installed at LIS,Kotgarhi L/L . The Job involves decoupling of pump coupled with three phase induction motor . Further removing the pump top cover , extracting the impeller shaft assembly & shifting of the impeller shaft assembly by manual / mechanical means to workshop. Separating shaft, impeller and bushes. Abrication of new pump shaft then finishing to proper size Repair to key ways .Providing/fabrication of 2 nos. sleeves , gland cup as per sample. Assembling of the pump parts. Carriage / transportation of the pump assembly back from workshop to the site of 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

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