MID/AN/112

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

Repairs to 40HP 3 phase induction motor at LIS Manwa unit no 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 motor to safer place by using manual labour at LIS. 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, Shifting the burnt winding to workshop by head load and mechanical transport. Providing and making of coils from new wire of suitable gauge and size and shifting back to LIS .The job also invoves shifting of necessary tools/tackles and material from workshop to LIS for rewinding of motor at Site. 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 .p/f of both end bearing as per sample . 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 Job

Repairs to 150 mm dia foot valve assembly of pumping unit no. 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

Repairs to 10cusec discharge, 18 m head H.C Pump unit no. 1 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 as per sample and one no. bush 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

Repairs to 300 mm foot valve assembly of pumping unit no. 1 and 3 installed at LIS Manda- 1. 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 and rings etc. complete repair to the damaged flap plate and Stainer 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 ite at LIS. Fitting the valves to the respective suction line 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

Rishabh Electricals and Mechanical Works

M/S ISHAN ELECTRICAL and MECH. ENGG. WORKS