129/MID/AN

Repairs to 4.5cusec discharge, H.C Pump unit no. 01 installed at LIS Nud.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. Fabrication of the shaft as per the size of the damaged shaft. Providing / fitting of one no. bush and two no bearings ( 6309 ). Repair to bearing brackets as per requirement of pump .Fabrication of glands 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 old 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 100 HP three motor of pumping unit no 01 at LIS Nud .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. Shifting of motor from LIS to workshop through mechanical transport and manual labour. 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. 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 6315 C3 bearing. Re-assembling the motor after greasing. Shifting of motor back to 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. Complete Job

Repairs to 100 HP oil immersed Starter installed at LIS Nud. The job involves disconnecting the starter and then shifting the starter to the workshop through mechanical transport . The job involves complete replacement of worn out G.M Nuts and washers, bakelite strips, fingers, contacts moving and fixed as per sample. Replacement of tripping coil of required capacity, complete kit. Complete drainage of T.oil, Providing/Filling of fresh T.oil (10 Ltrs.).. Replacement of worn-out thimbles of cables etc. Shifting the starter to the LIS .Connecting power supply and testing at load. Complete Job includes cost of material, tools and tackles, labour charges transportation charges at site of LIS, Complete Job

Chargotra Trading Co.

R K Electrical and Engineering Works