MID/J/49

Repairs to 5 cusec x 11.5 mtr head Horizontal split casing pump and rewinding of 50HP motor of pumping unit-II along with allied works at LIS Jandi.

Disconnecting electric power supply and decoupling of 5 cusec x 11.5 meter head discharge pump unit no II from 50 hp motor and then dismantling the pump and motor from the base frame. Carriage & shifting of dismantled pump and motor on head load to roadside using manual labour and then to workshop by carriage vehicle. Repair to 5 cusec x 11.5 meter discharge split casing pump of pumping unit no II of Lift irrigation station, Jandi at workshop by dismantling and extraction of all worn out/damaged parts i.e. pump shaft, impeller, bearings, sleeves, bush, check nuts, nuts & bolts, gland plate, gland studs. Properly cleaning the internal surface of pump casing. Remetalling /brazing of pump shaft and turning to bearing size and threading at positions of check nuts. Repairs to impeller by filling cavities, cracks and finishing to original size. Providing and fitting 2 no’s of new bearings on driving and non driving end of the pump, 1 no’s neck rings, 2 no’s shaft protection sleeves, 1 no’s check nuts, nuts & bolts, fabrication of 1 no’s new gland plate with providing and fitting of 2 no’s new gland studs on ends of pump. Repair to bearing housing on driving end of pumping unit by providing and fitting of bush, turning and fitting of bush to make inner diameter of bearing housing suitable for fitment of bearing. Reassembling all parts of pump with proper greasing of bearings and providing and fitting of gasket sheet between upper and lower part of the pump. Proving and fitting of graphite packing of suitable size on both ends of the pump and 2 kg spare at Station for routine use. Rewinding and repairs to 50 hp x 1470 rpm motor of pumping unit no II by extracting out old damaged winding manually and cleaning of stator slots. Inserting of insulation papers in slots, complete rewinding of the stator by using standard copper wire of requisite gauge. Making of connection coils in star delta. Tightening /locking of coils into the slots by using glass fiber wedges. Complete varnishing of the stator and allowing to completely dry. Repair to rotor shaft by way of welding the positions of bearings and coupling pulley, turning and finishing making the area smooth and balanced. Providing and fitting of two number new bearings 6313 and 6310 on driving and non driving end, nuts and bolts. Repairs to Auto transformer starter of 50 hp motor of unit no. II installed at LIS Jandi. The job involves disconnecting all the electric connections of starter, Dismantling of the starter at site, washing of all parts by recommended chemicals to decarbonize the parts due to rust. P/F of new contact points (fixed and moving). Extraction of damaged ATS coil and repair to them by partial rewinding. Reassembling of the Auto transformer Starter and reinstalling the same at its installed position. Providing/filling of deficit quantity of T. Oil (approx. 7 Ltrs.) in the starter. Making all the electrical connections. Complete job shall include head load, cost of material, transportation charges, labour required for execution the job Electrification of pump room building by using standard quality material as per site requirement for lightening and power circuit by supplying and fixing of PVC rectangular ducting pipe ( battens) for wiring of 20mm x 12mm size of approx. 40 m length approx for various lighting fixtures and switches. Job also includes laying of 1.5 mm sq. pvc insulated copper electrical wire approx. 70 m of reputed make for various connections. Providing and fitting of LED Lights four no. inside of pump room , providing and fitting of 16 ampere power socket, 6 amp charging socket of reputed make. Providing and fitting of 32 ampere MCB for lighting and power circuits. Job includes fitting of 1 no. flood light of 50 watts of reputed make outside pump room for illumination of approach path and sump. Providing and fitting of 200 Ampere main switch having HRC fuse system, three pole of reputed make , ISI marked on wall of pumping room. Replacement of damaged old cable by way of providing and fitting of 4 mm sq. copper cable approx. 15 mtr from starter to priming motor. The job includes loading, un-loading, manual labour, carriage charges of vehicle (to & fro), tools & tackles, cost of materials, installation & testing charges at site. Note: The tenderers are requested to visit the site and quote the rate as per site conditions. The firm should offer rebate on old material.

Rebate on Old Parts

AADISHWAR ELECTRICAL AND MECHANICAL WORKS (BID ID -2457982)

AADISHWAR ELECTRICAL AND MECHANICAL WORKS