Repair to pumping machinery of unit I and other allied works at LIS Khwaskhan.

Repair to pumping machinery of unit I and other allied works at LIS Khwaskhan.

Disconnecting the power supply from 12.5 HP motor and decoupling and dismantling of pump and motor of unit I from the base frame by unscrewing foundation nuts &bolts. Taking out pump and motor from the pumping room with the help of manual skilled labour and shifting up to roadside. Also dismantling the sluice valve of 10 inch dia from the delivery line of unit I and then temporary plugging the delivery line by P/F blind flange of appropriate size so that running of unit II is not hampered. Loading the pump motor and sluice valve in Mechanical Transport and carriage to workshop for repair & then back carriage to LIS Khawaskhan after conducting necessary repair. Dismantling the motor of 12.5 HP at workshop and extracting the rotor from stator Repairs to rotor shaft by way of re metaling turning, threading, cutting of key way and finishing to required size. Fabrication and P/F of sleeves to both the end of motor and finishing to bearing size, fabrication providing & fitting of bearing cover plate inner 2 Nos, Providing and fitting of 02Nos bearing to driving (6309)and non-driving (6209) ends. Providing/fitting of cooling fan along with check/lock nut. Extracting the burnt out coils from the stator, cleaning the slots with appropriate cleaning agent. Complete rewinding of motor with copper wire of appropriate gauge/specification along with proper insulation. Complete varnishing of motor and the keeping the stator assembly in the oven to dry it to make it moisture free. Complete greasing of the bearings and assembling the rotor and stator. Dry testing the motor in workshop for checking any play in the rotor shaft. Complete job includes cost of material, labour charges and testing at workshop. Repairs to 2.5 cusec 10mtr discharge pump at workshop by way of dismantling it for extraction of old and worn out parts i.e. bearing, sleeve check nut, gland packing, gasket, gland bush, pump shaft, impeller. Repair to impeller by way of metaling, turning and finishing to size. Repair to pump shaft by way of welding, turning, machining, threading & finishing to the required size. P/F of 01No. Gland bush, 01No. Check nut, 02Nos. bearing (6408) and 01No. sleeve. Re-assembling all parts of pump with proper greasing and suitable gland packing and M. oil. Fabrication, providing and fitting of new gland set as per sample along with required nuts and bolts, Installation of the repaired pump on base frame by p/f of new required nuts, bolts/ studs, oil packing with proper greasing of motor and alignment after coupling it with motor by providing and fitting of rubber star of appropriate size and testing on full load. The job also involves aligning of suction and delivery end and fitting them with pump body by p/f of rubber sheet joint along with new nuts and bolts Complete job includes cost of material and labour charges at LIS Khawaskhan. Repair to sluice valve of 10” dia by way of dismantling the top cover of sluice valve by opening the damaged/rusted nuts, bolt and extracting out the damaged sluice valve rod along with check nut for lifting the flap assembly. P/F of new sluice valve rod along with Check nut as per sample. Assembling back the sluice valve by P/F of rubber sheet joint along with new nuts and bolts P/f of gland packing of appropriate size at site. Checking the up and down movement of the flap assembly. Fitting the sluice valve on delivery line of unit I after removing the temporary fitted blind flange by way of P/F of rubber sheet joint along with new nuts and bolt of required sizes at LIS Khawaskhan. Complete job includes cost of material, labour charges, and carriage charges, hire charges of tools and tackles required for execution of works at site.

Rebate on Old Parts

N B Engineering and Electric Works

ROYAL ENGINEERING ENTERPRISES