Repairs of 05 cusec discharge 75 HP VT pump and motor of unit II along with other allied works at LIS Katal Batal.

Dismounting of 75 HP motor from base frame and extraction of 05 cusec discharge 02 stage VT pump of unit-II by way of disconnecting the motor connections, dismantling and extraction of discharge head, the column assembly of approx length 38 feet, damaged spider guides, line shafts, pump shaft and bowl assemblies. Head load carriage of pump, stuffing box, discharge head, line shafts and other material to road side up to loading point with the help of skilled manual labour and then loading in mechanical transport for carrying to work shop for repairs with the help of crane/tools, tackles using manual labour. Complete job includes cost of labour, carriage charges and hire charges of tools and tackles. Dismantling the 2 stage VT pump by way of unscrewing/cutting of rusted bolts, nuts and studs and separating the discharge bowl, suction bowl from pump body and then dismantling the two stage pump to extract the damaged impellers and pump shaft. Repairs to 05 cusec VT pump by way of repairs to suction bowl body by way of metalling, turning, finishing of intake fins and grinding them to size as per requirement. Providing/ fitting of neck ring of stainless steel material- 02 Nos. by casting, turning and boring to the required size and press fitting the same in the bowl body and pump body then locking properly. Repair to pump shaft by way of welding turning and finishing to required size and then threading it and making of key way on shaper to the required size of precision. Fabrication of impeller holding lock ring- 02 sets out of SS rod as per sample. Repair to Ist & IInd stage impeller by fabrication of 1 No. neck ring for Impeller and then press fitting it on the Impeller and locking it properly and rebuilding the worn out portion with machine able SS electrode and turning, machining it to its original shape and size. Repair to stuffing box by providing and fitting of new bronze bush as per sample to required size after metalling, finishing and drilling holes and making internal threads on stuffing box as per requirement. Repair to top shaft by way of rebuilding with machine able SS electrode at worn out portions and then threading and making key way on shaper to the required size. Fabrication of new check nut of given size. Providing and fitting of new CI spider guide 02 Nos. along with rubber bush as per sample. Fabrication/ providing and fitting of 04 Nos body bushes. Repairs to 02Nos line shaft by way of welding, turning and making threads as per sample. Providing and fitting of 02 No sleeve for line shaft by making internal threads of required size. P/F of rubber sheet joints for flanges 05 Nos cut to required size. The job includes fitting of the pump using new nuts and bolts/ studs. Complete job includes cost of material and labour charges at workshop. Loading the repaired pump along with line shafts and other allied equipment into the mechanical transport using crane/tools, tackles with the help of manual labour at work shop. Unloading the same at road site at LIS KatalBatal using crane/tools, tackles with the help of manual labour. Carriage to the site of installation through head load using tools and tackles with the help of skilled labour. Lowering down the pump into the sump by connecting the line shaft and suction pipes one by one ensuring proper alignment by way of P/F rubber sheet joints for three nos suction pipe and one no pump along with new nuts, bolts of required size. Mounting the motor on the base frame along with discharge head by way of coupling it with suction pipe and delivery line and by P/F of gland packing, grease and rubber sheet joint cut to required size. The complete job includes cost of material, carriage, transportation fitment charge and testing on full load of unit No II at LIS Katal Batal.

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