Repairs to 8 cusec discharge pump of unit and 40 Hp motor of unit II along with allied works at LIS Ismailpur

Amount

Carriage and shifting of dismantled 8 cusec pump set, 40 HP motor ,sluice valve ,reflux valve of 250 mm by way of head load to the nearest roadside using manual labour , loading in mechanical transport vehicle, carriage to workshop for repairs. After complete repairs back shifting of pump and motor set to site of installation. The job includes labour charges, hire charges of vehicle (to & fro), carriage, shifting, loading and unloading all the tools and tackles are to be arranged by firm.

Dismantling 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. Decoupling the motor from pump and shifting the motor from base frame with the help of manual labour using tools and tackles at site. 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 8 cusec discharge pump at workshop by way of extracting the damaged parts. Repair to pump shaft by way remetalling turning, threading, finishing and cutting of key ways to accurate required size. Repairs of impeller by way of brazing, filling of pitted vanes and finishing to accurate size as per sample. P/F of new gland bushes-01 Nos., bearing 02 Nos and new check nuts-01 no., lock nuts 02 Nos. and cotter set to required size. Repair to gland brackets, suction body and bearing housings. Fitting the shaft assembly to pump body by inserting it from motor side and fitting to the pump body by P/F of rubber sheet joints cut to size and required nuts and bolts along with washer. Fitting the impeller from suction side and locking it with lock nut. Fitting the tail piece of pump body by P/F of rubber sheet joint cut to size and required nuts and bolts along with washers. Similarly fitting of suction piece by P/F of 02 Nos rubber sheet joints to either side of suction piece cut to side along with new nuts and bolts with washer of required size. Loading the pump and motor on base frame with the help of manual labour using tools and tackles and fixing new nuts and bolts. Fitting the newly fabricated coupling pulley set on pump and motor shaft. 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 of the pump/ motor to the base frame. Coupling the pump and motor using new coupling bolts and rubber bushes. Filling of grease mixed with mobile oil in the bearing housing. Providing of new coupling bolts, rubber bushes and cotter pins as per required size of coupling pulley. The job includes replacement of gland packing. The complete job includes cost of material, labour charges and hire charges of tools and tackles required along with testing and commissioning on full load at LIS Ismailpur.

Repairs to 40 HP starter of LIS Ismailpur by way of extracting the damaged worn out parts. Providing and fitting of no voltage coil, over load relay, moving and fixed contacts. Repairs to tripping system by brazing and finishing to required size. Replacement of worn out thimble, bolts and internal leads duly soldered properly and filling of T- oil. Complete job including cost of material and labour charges.

Dismantling the 40 HP motor at workshop and pulling out the rotor from stator. Repairs to the rotor by welding, turning and grinding to bearing size. Fabrication, providing, turning and fitting the bearing sleeves at DE & NDE. Providing and fitting of bearing cover plates along with new bolts for fitting after threading the motor body. Providing and fitting of new bearings at DE & NDE. Fabrication, providing and fitting of new motor end cover on cooling fan side. The job includes drilling of holes in the pre-fabricated motor end cover and motor body including threading for fixing of end cover with new nuts and bolts. Testing of motor on no load for checking the smooth running of motor. Complete job includes cost of material & labour charges with hire charges of tools and tackles.

Repairs to 250 mm dia sluice valve and relux valve installed at LIS Ismailpur by way of dismantling from delivery line Repairs to sluice valve by way of extraction of damaged & worn out gland bracket and spindle rod. P/F of new machined gland bracket, GM rings & new spindle rod duly threaded. The job also includes repairs to reflux valve by way of P/F of new flapper plates along with leather sheet and new set of nuts & bolts. Complete job includes providing of rubber gaskets, assembling of the valves and refitting of the sluice valve & reflux valve to the delivery line at site and testing.

Rebate on Old Parts

KRISHNA ENGINEERING WORKS

AJAY ELECTRIC AND MECH WORKS