Urgent electrical and mechanical repair works to be carried out at various lift irrigation cum dewatering schemes of sub-division Pattan.

Amount

Repairs to the 05 cusec horizontal end suction pump at Lift Irrigation Scheme Singhpora by of dismantling of pump at site, dragging to the loading site and carrying to workshop for repairs in mechanical transport by way of : • Rebuilding of pump shaft and making of bearing seats & coupling seat, finishing the shaft using lathe machine. • Manufacturing providing and fitting of SS sleeve (01 no.) fabricated out of SS 410 material as per sample. • Extraction of old damaged bearings and then providing and fitting of bearing no. 6410 (02 no.) and 51312 (01 no.) along with their adequate greasing. • Providing, fitting of palmetto packing, studs, nuts, bolts and oil seals as per requirement. Loading of pump in private load carrier, carriage from workshop to site, reassembling of whole pumping unit at site with its accessories and then testing on full load using private load carrier. All tools and tackles required for execution of job shall be provided by contractor.

Improvement/repairs to the LT line at Lift Irrigation Scheme Budibugh by way of disconnecting HT/LT power supply from substation and dismantling of damaged wooden cross arm on angle iron poles and lowering of existing LT service line. Fabrication, providing and fitting of cross arm with support out of ISA 50mm×50mm×5mm (18 .9 kg) with holes at appropriate sizes for accommodating pin insulators/nuts and bolts which shall be fastened to angle iron pole using nuts and bolts of suitable size. The job then includes fitting back the insulators on cross arm, fitting and tightening the dismantled ACSR conductor on poles, making LT/HT connections and then testing of same. Providing fitting of flanged/screwed foot valve of priming pump as a replacement for damaged one. Replacing, providing and fitting of 32 mm brass gate valve (01 no.) of reputed make for 10 cusec pump at Lift Irrigation Scheme Budibugh.

Repairs to the suction line at Lift Irrigation Scheme cum dewatering scheme Magraypora cracked at flanges by way of earth excavation to expose the flanged joint, cutting of damaged rusted bolts, welding to cracked portion of both flanges using superior quality welding electrodes in two coats, reassembling of same by way of providing and fitting of rubber washers, nuts and bolts. The job also includes plugging of minor leakages for rising main at various spots using 04 mm MS plate/strips by way of welding. The job also includes providing and fitting of 50 mm suction flange (01 no.) to the priming unit as per sample including nuts, bolts and rubber washers after disassembling and refitting from its installed position at site after repairs.

Repairs/periodic maintenance of foot valve installed on suction by way of extraction of foot valve from their installed position inside the intake channel by means of cutting damaged/rusted/worn out bolts using gas cutter and then lifting of foot valve on head load using manual labour and shifting the extracted foot valve to loading site, loading in private load carrier to workshop. The job includes reconditioning of hinges, hinge bolts, weight plate, valve seat, valve body by way of welding, patching, grinding etc. The job involves repairs to the foot valve by way of cutting the old damaged/rusted MS bars of strainer and providing and fitting of new MS square bars by way welding works as per requirement The job also includes providing and fitting of rubber insertion cloth for weight plates to make it leak proof, replacing the rusted/damaged parts, nuts, bolts, hinges etc as per requirement. Back carriage of foot valves after repairs and re-fitting by way of providing and fitting of new nuts and bolts of appropriate size at site to suction line and testing on full load at Lift Irrigation Schemes: 1. 300 mm dia (01 no.) Chainabal 2. 300 mm dia (01 no.) Gund Ibrahim 3. 350 mm dia (01 no.) at Sohkhul Goshbugh 4. 300 mm dia (01 no.) Check Harwan 5. 250 mm dia (01 no.) KP Payeen 6. 250 mm dia (01 no.) KP Bala new

Fabrication, providing and fitting of gate of size 6.5 feet×3 feet out MS sheet of adequate thickness which shall be welded to same sized frame out of ISA of appropriate size at Lift Irrigation Scheme Sedhpow Ghat for safety of electromechanical equipment installed at scheme. The gate shall be reinforced by welding suitable sized MS strips across frame. The job also includes providing and fitting of locking system to gate and hinges to gate. The job includes applying of one coat of antirust paint followed by one coat of primer and two coats of paint for its longevity. All tools and tackles required for execution of job shall be provided by contractor.

Improvement/repairs to the 50 mm suction line of priming pump at Lift Irrigation Scheme Trikolbal New by way of cutting of damaged screw coupling joints and providing and fitting of 50 mm dia MS flanges min 04 mm thick (03 no) by way of welding. The job includes providing, fitting of nuts bolts, RI cloth and 50 mm dia PVC foot valve. All tools and tackles required for execution of job shall be provided by contractor.

Mir Fab Industries

M/S STAR ELECTRICAL ENGINEERING WORKS