MID/AN/112

1 Repair to 120 HP 3 phase induction motor of pumping unit no.01 installed at LIS Seriplai. 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 the motor to workshop by mechanical transport . 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. Extraction of burnt winding from the stator, 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 . 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. 01 Complete Job 2 Repair to 40 HP 3 phase induction motor of pumping unit no.02 installed at LIS Dhakkar. 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 the motor to workshop by mechanical transport . 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. Extraction of burnt winding from the stator, 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 . 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. 01 Complete Job 3 Restoration by Strengthening / Repair of 3 cusec discharge 17m head HC pump unit no.2 installed at LIS Dhakkar . Decoupling & then dismantling the pump top cover & taking out rotating assembly and proper cleansing to remove silt / dust material & shifting of the pump shaft assembly by manual / mechanical means to workshop . Providing / fitting of 1 no. bushes and 2 no bearings as per sample. Greasing the bearings for proper lubrication . Assembling of the pump parts. Carriage / transportation of the pump assembly back from workshop to the site of installation at LIS. Fitment of pump alignment setting at its position. Replacement of old damaged studs, gaskets. Providing and fitting of gland packing. Aligning & coupling the pump & motor. Complete testing & commissioning of the pumping unit on no load and then 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. 01Complete Job. 4 Repairs to 4 cusec discharge HC pump of unit no. 2 at LIS Seriplai . The job involves decoupling of pump from the motor and removing the top cover, extraction of shaft and impeller assembly together with bearing bracket by using suitable tools & tackles and skilled technicians. Carriage of the impeller shaft assembly by using manual labour, loading in transport vehicle, carriage to the workshop in the mechanical transport for repairs. Repair to impeller shaft assembly at workshop by way of dismantling and extraction of damaged parts. Job includes repairs to pump shaft and impeller at damaged spots by way of re metaling then finishing to proper size so the shaft and impeller should be balanced. Providing and fitting of 2 nos. bearings at driving and non driving end as per sample . Providing and fitting of new bushes-1 No, and applying sufficient amount of grease to avoid excessive wear and tear. Fabrication of glands and studs with nuts. Repair to bearing brackets. Re-assembling of impeller shaft assembly and shifting back to site and there after lowering at proper position, placement of oil seal and closing the top cover along with P/F of new nuts ,bolts and studs. Coupling the pump with the motor . P/F of gland packing .Priming the pump .Testing the pump on full load . The Job includes cost of material, labour (skilled and unskilled), loading charges, hire charge of tool and tackles, to and fro carriage charges. 01 complete job

N B Engineering and Electric Works (BID ID -2331498)

ROYAL ENGINEERING ENTERPRISES (BID ID -2331853)