Repairs of 05 Cusec Pump set of Unit-II along with allied works at LIS Karnaila Chak.

Repairs of 05 Cusec Pump set of Unit-II along with allied works at LIS Karnaila Chak.

Decoupling of 05 Cusec pump set from motor of unit-II, dismantling of pump and motor from the base frame of unit-II and then carriage and shifting of dismantled 05 cusec discharge pump and 20 HP motor of unit-II, by way of head load to the nearest roadside with the help of manual labour, loading in mechanical transport vehicle, carriage to workshop for repairs. After complete repairs back shifting of 01 no. pump and 01 no. motor to site of installation, i.e. LIS Karnaila Chak. Installation of the repaired pump and motor on base frame with proper alignment and testing on full load. The job includes labour charges, hire charges of vehicle (to & fro) carriage, loading and unloading & all the tools and tackles are to be arranged by firm. Repair to pump of unit II by dismantling of pump set from the suction piece by unscrewing/cutting of old rusted nuts and bolts and taking out the tail piece of pump body by way of unscrewing the nuts and bolts using tools, tackles and manual labour at work shop, extracting the shaft assembly from pump body after unscrewing the required nuts, bolts from motor side and unscrewing the lock nut for impeller from suction side. Repairs to 05 cusec discharge pump at workshop by way of extracting the damaged parts. Replacement of worn out pump shaft of 05 cusec discharge pump of unit-II at workshop by way of turning, threading and finishing to the accurate size as per specification. Making of new slots for feather keys. The job includes repairs of impeller by way of welding, machining of bore, making key ways slot on the impeller and fitting of the same on the pump shaft. Repairs to the pump casing by way of welding and rethreading the damaged studs/bolts holes of pump casing as per the size and specification. P/F of new check nuts, gland bushes, shaft protection sleeves, impeller wearing rings, bearings as per sample and new CI gland plates along with repair to pump body. Complete assembly of the pump set after complete repairs. Repairs to the coupling pulley of unit-II by way of welding, machining of bore and key way on either side of the shaft(pump and motor side). Resizing of the coupling bolt holes by way of welding and drilling to proper size The job includes replacement of gland packing, oiling and greasing including cost of material and labour charges The job includes providing and packing of metal shims under the motor/pump as per site requirement for their proper alignment and to avoid undue vibration during operation and tightening the nuts & bolts. Coupling the pump and motor using new coupling bolts and rubber bushes. Filling of grease mixed with mobile oil in the bearing housing. Dismantling of damaged 20 HP motor at workshop for repairs to rotor by way of rebuilding, turning of the rotor shaft and finishing to bearing size, making new keyway for coupling, P/F of new bearings as per sample and sleeves (DE & NDE). P/F of bearing end cover plate-01No. Complete greasing of the bearings and assembling the rotor and stator. Repairs to rotor of motor of unit-II by providing and fitting of new bearings (DE & NDE) after rebuilding, turning of the rotor shaft and finishing to bearing sizes, making new keyway of coupling.Rewinding of 20 HP motor of unit 2 at workshop by way of extraction of burnt/damaged windings, cleaning of stator slots and complete rewinding of the motor with new copper wires of requisite gauge and specifications and of standard make. Providing and fitting of new insulation, packing material, then varnishing with superior quality varnish and drying in oven in controlled temperature. Back shifting of the repaired motor to LIS and installing it at base frame with new nut and bolts with proper alignment of pump and motor. Providing of 200A main switch HRC type (standard make) at LIS Karnailachak. The job includes providing/ fabrication of MS angle frame of suitable size , embedding of its cross arms in the walls by making hole, and PCC and fixing the frame . Fitting of main switch on embedded frame by way of drilling holes and using nut bolts along with Providing/Fitting of 25sqmm copper wire of length 15 meter from main switch to voltage stabilizer after making the cable ends both sides ,dressing and thimbling on both sides by copper thimbles.Complete job including cost of material rebate on old parts and labour charges.

Rebate on Old Parts

N B Engineering and Electric Works

Rishabh Electricals and Mechanical Works

M/S FASTTRACK ENGINEERS