28/MID/AN

Reconditioning of 3 cusec discharge 12 m head H.C. pump unit-2 by decoupling the pump from motor, suction and delivery lines and unfastening the foundation bolts. Dismantling the pump by removing the bearing cups, body brackets, top cover, housings and gland brackets. Taking out rotating assembly and Shifting the rotating assembly to workshop by mech. transport including loading and unloading charges at both ends. Separating shaft, impeller and bushes. Fabrication of pump shaft and rebuilding of impeller using good quality electrodes. Turning/machining of rebuild impeller and pump shaft on lathe machine for proper size. Repair to key ways .Providing/fabrication of both the sleeves as per sample. Making necessary repairs to bearing housing. P/F of new driving end bearing as per sample. Shifting the pump back to L.I.S. Assembling the pump using paper packing sheet at each joints, proper locking of bearings without play and greasing.. Placing the pump on base frame and tightening the foundation bolts. Connecting the pump to suction and delivery lines replacing the worn out packing sheet nuts and bolts. Providing and fitting of new tyre for tyre coupling as per sample .Coupling the pump and motor after proper alignment/adjustment. Priming the pump and testing on full load. Job includes cost of material, tools and tackles, labour charges, transportation charges at site of LIS. Complete Job.

Strengthening and repair of 50 HP starter of pumping unit no 01 & 02 installed at LIS NS pura . The job involves disconnecting the power supply / the cables of the starter. Shifting of the starter by manual to the road side. Then transporting to the workshop. Providing / fitting of washers,nuts, bakelite strips to replace the burnt / worn out ones. Providing / fitting of kit of contacts & fingers as per the given sample to replace the burnt / damaged ones. Transporting the starter back by mechanical / manual (head load) means to the site of LIS. Cleaning & drying of oil tank. De-moisturizing, raising the viscosity & filtering T.Oil before filling back. Providing / filling of 5 ltr fresh T.oil to each ATS to make up for the deficit quantity. Providing & crimping of new thimbles of cables to replace burnt / damaged thimbles. Making connections of the cables to connect power supply & testing on full load. Complete job includes labour charges, transportation charges,hire charges for tools and tackles and cost of material. Complete Job

Repair / rewinding of 5 HP monoblock priming pump installed at LIS NS Pura by way of decoupling of the pump from suction and delivery line, disconnecting from power. Shifting the pump to workshop. Extraction of damaged winding from the stator. Cleaning of stator with petrol. Providing and fitting of new good quality winding wire of suitable gauge and size in the stator, Varnishing the stator winding with superior quality of varnish. Drying the stator winding with hot air circulation process. Extraction of old / damaged bearing. Replacement of damaged / worn out impeller by providing fitting of new one as per requirement. Providing / fitting of bearing & seal. Reassembling the priming pump. Transportation of the pump back from workshop to the site. Replacement of damaged control valves(02 nos) of the existing delivery line by providing fitting of new one. Reinstallation, testing & commissioning of the pump. Job includes cost of material, transportation charges, skilled / semi skilledlabour charges. Complete Job

Repair/ Strengthening of Sluice valve (200 mm dia) of pumping unit no. 2 installed at NS Pura . The job involves dismantling of sluice valve by way of cutting of all the rusted nuts and bolts with the help of gas cutter, removing of stem rod , nut and flap. Fabrication of new stem rod as per the size of the old stem rod .Fabrication of new glands. Srengthening of flap by welding at the damaged portions, making of proper seat for resting the flap. Fitment of sluice valve, replacement of the rubber sheet of sluice valve and gland packing. Providing /fitting of nuts, bolts and washer in place of all the worn out nuts and bolts. Complete Job includes cost of material, tools and tackles, labour charges transportation charges at site of LIS, NS Pura . Complete Job

Strengthening of 50 HP 3 phase induction motor no. 02 installed at LIS NS Pura . The job involves dismantling of motor from its installed position after disconnecting the power supply of all three phases. Dismantling the motor by unfastening the foundation nuts and bolts and also decoupling from the pump. Shifting the motor from LIS to workshop through mechanical transport to the workshop. Complete dismantling of the motor, extraction of rotor broken bearing. Repair to rotor shaft by depositing material by welding. Turning and machining of the rotor shaft for proper size . P/F of driving end bearing as per sample . 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 and shifting back to L.I.S. Refitting the motor at its installed position and coupling with pump by way of lowering it with the help of chain pulley block, 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

Repair of 200mm foot valve of pumping unit no. 01 at LIS NS Pura by way of decoupling the foot valve by cutting/unfastening the nuts and bolts from suction pipe. Extraction of foot valves out of canal with help of chain pulley block and manual labour. Dismantling of foot valve after unfastening/cutting the nuts & bolts. Cleaning of foot valve from mud and silt. Shifting the disc assembly to workshop & repair/strengthening by way of rebuilding/remetalling the disc for proper alignment and balance to fit in the seat for no leakage of water. Fabrication of new strainer as per the size. Assembling the foot valve and Providing /fitting of new rubber packing sheet, nuts and bolts etc. lowering the foot valve in the river & coupling with suction pipe by providing new rubber packing sheet, nuts bolts and washers. Checking for leakages. Priming the pump & testing/commissioning on full load. The job includes cost of material, labour, transportation etc as per site conditions of LIS. Complete Job

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS

G S ENGINEERING WORKS