MID/AN/148

Repair to 3.5 cusec discharge 26 m head H.C pump no. 01 at LIS Trooti.The job involves de-coupling of pump from the motor and removing the top cover, extraction of shaft and impeller assembly together with bearing bracket and shifting to the workshop by using manual labour and mechanical transport.. P/F of 2-No bushes as per sample. Repairs to pump shaft by applying new material so the pump shaft should be balanced. Turning and machining of the shaft for proper finish and size. Fabrication of glands ( 2 nos.) and studs with nut. Fabrication of neck rings( 2 nos.) as per sample . 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 with motor. P/F of gland packing etc.and testing on no load. The Job includes cost of material, labour(skilled and unskilled), loading charges, hire charge of tool and tackles, to and fro carriage charges.

Repairs to 75HP 3 phase induction motor at LIS Trooti .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 200 mm dia foot valve assembly of pumping unit no.1 and 2 installed at LIS Trooti. 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

M/S UK MECH AND ELECT ENGG WORKS

R K ELECTRICAL MECHANICAL ENGINEERING AND FABRICATION WORKS