MID/AN/190

Repairs to 4 cusec discharge 24 m head HC pumps installed at LIS Argi Baljaralan. 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..Providing/fabrication of two no. bush as per sample. Providing/fitting of 6309- 2 nos. bearings 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

Repair to 50 HP three phase induction motor no. 01at LIS Argi baljaralan.The job involves decoupling the motor from the HC pump and unfastening the foundation nuts and bolts by using suitable tools and tackles and labour.Lifting the motor out of pump house by using manual labour. Loading the motor in the vehicle and shifting the motor to the workshop . Unloading of the motor in the workshop .The job further involves dismantling of end covers, extraction of rotor from motor. Extraction of damaged winding from the stator. Cleaning of stator with compressed air and requisite chemical cleanser/CCL4. Complete rewinding by way of 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. Shifting the motor to LIS . Installation 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 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. Complete Job

Providing/fitting by way of replacement of bearings of 50 HP three phase Induction Motor no. 02 installed at LIS Argi Baljaralan. The job involves disconnecting all electrical connection decoupling the motor from the pump, removing from the base plate . Dismantling the motor ,extraction of the rotor and bearings.. Providing/fitting of driving end bearing ( 6313) and non driving end bearing ( 6313). Greasing of the bearings . Assembling of motor. Fitting the motor over the base frame by providing / fitting of nut ,bolts, washers , making of electrical connections, replacing worn out nuts, bolts and thimbles for the electrical connection. Alignment & coupling with pump. Complete testing 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. Complete Job

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