MID/AN/119

Restoration by way Desilting / Repair of Suction lines of pumping unit no. 01 , 02, 03 installed at LIS Manwa.The job involves disconnecting the suction pipes & extraction of suction pipes from the sump with the help of manual labour and allied tools and tackles and shifting to the stacking place. Desilting of choked pipes with the crow bars ,hammers, T/steels M.S round pieces by hammering the pipe one by one and cleaning by washing with water to make it completely silt free. Strengthening of suction by welding at leaking portions along with the replacement of damaged flanges (5no). Connecting of suction pipes by Providing / fitting of rubber flanges nuts and bolts etc. Thereafter lowering the suction pipes in sump and connecting suction lines . Complete job including the cost of material and labour charges for dismantling, extraction, lowering and fitting in the sump at the site of LIS including hire charges of tools and tackles and to and fro transportation. Complete job in all respects.

Repairs to 2.5 cusec discharge 26 m head HC pump no. 02 at LIS Manwa. The job involves decoupling of the pump from motor by unfastening the coupling nuts and bolts and removing the top cover by unfastening the nuts ,bolts , studs by using skilled technicians . The job further involves taking out impeller shaft assembly 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 . Turning/machining of the impeller for proper size .P/F of 2-Nos. bushes as per sample. Providing/fabrication of neck rings ( 2 nos.) 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

Restoration by strengthening of 40 HP motors of pumping unit no. 1& 3 installed at LIS Manwa . 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. 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. Varnishing the rotor and stator with Dr. Beck compound or equivalent make of varnish in two coats, drying by hot air process. Providing/fitting of new set of bearings as per sample .Thereafter checking the IR value using megger meter. Greasing of the bearings properly . Assembling of the motor . The job also includes cleaning of aluminium and copper cable by using PF solvent to make it moisture and silt free .Providing/fitting of thimbles as per sample which includes crimping . 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, hiring charges of tools & tackles, transportation charges from and to the site of LIS. Also labour charges for skilled and semiskilled labour to be employed at site for execution of job including the out station charges etc. Complete job

Vaibhav Engineers and Technocrates

R M ENTERPRISES