MID/AN/17

Repairs to 75HP 3 phase induction motor at LIS Manda-1.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 Jobits repair . Taking out impeller shaft assembly and Shifting of the pump shaft assembly by manual / mechanical means to workshop. Separating shaft, impeller and bushes. Repair to key ways . Rebuilding of impeller by using good quality electrodes. Repairs to pump shaft at damaged spots by using good quality electrodes. Turning/machining of impeller and pump shaft for proper size . Providing/fabrication of one no. bush as per sample. Making necessary repairs to bearing housing. P/F of new set of bearings as per sample. Assembling of the pump parts. Carriage / transportation of the impeller shaft 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 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

Repairs to 10cusec discharge, 18 m head H.C Pump unit no. 01 installed at LIS Manda-I. The job involves removing the pump top cover , extraction of pump shaft assembly & shifting of the pump shaft assembly by manual / mechanical means to workshop. Complete dismantling of the pump assembly. Rebuilding of impeller by using good quality electrodes. Turning/machining of rebuild impeller on lathe machine for proper size . Providing/ fitting of 2no. bearings ( 6210) and 2 no. bushes as per the 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 old damaged studs, gaskets, alignment setting at its position, p/f of gland packing, greasing work etc. Aligning & coupling the pump & motor. Complete testing 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

M/S TRIKUTA ELECTRICAL AND MECHNICAL WORKS

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