47/MID/AN

Repairs to 2.5 cusec discharge 26 m head HC pump no. 01 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

Repairs to 150 mm dia foot valve assembly of pumping unit no. 1 and 2 installed at LIS Manwa. The job involves disconnecting / dismantling of the foot valve assembly from the suction pipe by deploying manual labour and allied tools & tackles. Cleaning by washing with water to make the foot valves completely silt free. Dismantling of the foot valve assembly Complete repair to the damaged flap seat, flaps and hinges by way of welding .Providing / fitting of new rubber washer cut as per size of the flap plate. Reassembling the foot valves. Fitting the valves to the respective suction lines with replacement of damaged rubber gaskets of flanged joints and worn-out nuts, bolts etc. Complete job including cost of material, labour charges, transportation charges and hire charges for tools & tackles. Complete Job

Restoration of 6cusec discharge 56 m head HC pump of pumping Unit No. 2 installed at LIS Ambaran . The Job involves removing the top cover, extraction of shaft and impeller assembly together with bearing brackets. Shifting the impeller shaft assembly together with bearing brackets to workshop by using mechanical transport. Complete dismantling of impeller shaft assembly. Rebuilding of impeller by using good quality electrodes. Turning/machining of rebuild impeller on lathe machine for proper size . Providing/ fitting of new set of bearings ( 6310 and NU 310 ) and bushes ( 2 nos.) as per sample. Re-assembling of impeller shaft assembly and shifting back to site. Providing/fabrication of new set of coupling as per sample. The Job includes cost of material, labour(skilled and unskilled), loading charges, hire charge of tool and tackles, to and fro carriage charges . Complete job

Repairs to 300 mm dia foot valve assembly of pumping unit no.3 installed at LIS Ambaran. The job involves disconnecting / dismantling of the foot valve assembly from the suction pipe by deploying manual labour and allied tools & tackles. Shifting / transporting to the workshop. Cleaning by washing with water to make the foot valves completely silt free. After drying them completely, carrying out necessary repair works on the valve surfaces and flanged joints by welding using good quality electrodes. Dismantling of damaged / worn-out foot valve mechanism with flap & rings etc. Complete repair to the damaged flap plate and strainer by way welding. Providing / fitting of new rubber washer cut as per size of the flap plate. Reassembling the foot valve and transporting back to the installation site at LIS. Fitting the valves to the respective suction lines with replacement of damaged rubber gaskets of flanged joints and worn-out nuts, bolts etc. Complete job including cost of material, labour charges, transportation charges and hire charges for tools & tackles. Complete Job

R K Electrical and Engineering Works

Chargotra Trading Co.