Repairs to 3.5 cusec pump installed at LIS Sohanjna along with allied works

Amount

Carriage of the dismantled 3.5cusec discharge pump of LIS sohanjna (unit-II)and foot valve of unit(1) to road side with the help of manual labour using tools and tackles. Loading in mechanical transport for shifting to workshop for repair. Carriage back of dismantled parts of pumpset of LIS sohanjna and after conducting necessary repair to the site of installation. The job includes labour charges, hire charges of vehicle (to & fro), carriage, shifting, loading and unloading and all the tools and tackles required for executing the job.

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 lowering the motor from base frame with the help of manual labour using tools and tackles at site. 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 3.5 cusec discharge pump at workshop by way of extracting the damaged parts. Repair to pump shaft by way of remetaling turning, finishing ,threading and cutting of key ways to accurate required size. Repair to impeller by way of brazing turning and finishing to require size. P/F of new gland bushes-01 Nos., bearing 02 Nos and new check nuts, 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 motor on base frame with the help of manual labour using tools and tackles. Coupling the motor with pump body by P/F of new coupling bolts and nuts along with bush of appropriate size. Filling of grease mixed with mobile oil in the bearing housing. 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 testings and commissioning on full load at LIS Sohanjna.

Repairs to 40 HP oil immersed Star Delta starter of unit 2 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 09 litres T- oil. Complete job including cost of material and labour charges.

Providing and fitting of 415 volt 200 ampere main switch of havells/anchor/L&T or any other reputed make at LIS sohanjna. The job includes dismantling of the damaged/burnt main switch by way of disconnecting the main supply, input & output cables and fitting new main switch with new nuts and bolts

Repairs to foot valve 10” dia of unit I at work shop by way of extraction of damaged and totally worn out parts. Providing and fitting of new leather washer, new flapper plate and thrust plate with new hinge to strainer by welding. Re-assembling of entire foot valve and checking operation with load. Complete job involves cost of material and labour charges.

Rebate on Old Parts

M/S V.N ENGG WORKS

KRISHNA ENGINEERING WORKS

AJAY ELECTRIC AND MECH WORKS