109/MID/AN

Repair to 3.5 cusec discharge HC pump unit no. 01 installed at LIS Kotgarhi H/L. The job involves decoupling of the pump from motor by unfastening the coupling nuts and bolts by using skilled technicians . The job further involves taking out impeller shaft assembly by unfastening the nuts ,bolts , studs and shifting the same to workshop by using manual labour and mechanical transport . Dismantling of the impeller shaft assembly and separating shaft, impeller and bushes. Rebuilding of impeller by applying new material so the impeller should be balanced then finishing to proper size .P/F of 2-Nos. bearings ( 6309) & 1-No bush as per sample. Re-assembling of impeller shaft assembly & shifting back to L.I.S. Greasing of all the parts. Fitment of impeller shaft assembly in the pump at proper position & closing the top cover by p/f of new nuts, bolts, washers and packing. Job also includes providing / fitting of gland packing , greasing work etc. Thereafter coupling with motor, alignment setting, testing of pump on load. Complete job includes the cost of material, labour charges, to and fro carriage charges, hire charges of tools and tackles etc. Complete Job

Repair to 100HP oil immersed star delta starter of pumping Unit No. 03 installed at site of LIS Kotgarhi H/L. The job involves disconnecting the power supply and taking out the starter out of pump house and shifting the same to workshop by using mechanical transport and manual labour . The job includes complete replacement of worn out G.M nuts and washers, copper fingers, contacts(moving and fixed) , Tripping coil as per sample. Drainage of T.oil and heating of T.oil to make it completely moisture free. Providing and topping up of 7 ltrs. fresh T. oil. Replacement of damaged copper thimbles of cables by p/f of new thimbles duly crimped and taped. Connecting power supply & testing on load. Complete job includes the cost of material, labour charges and other misc. charges at site. Complete Job

Repairs to 100 HP three phase induction motor of pumping unit no. 03 at LIS Kotgarhi H/L. The job involves disconnecting the power supply, unfastening the foundation nuts, bolts and 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. Providing/fitting of 6310 bearing .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 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. Complete Job

R K Electrical and Engineering Works

Chargotra Trading Co.

SMART TECH AND CO