MID/J/71

Repairs to 5 cusec x 11.5 mtr head Horizontal split casing pump unit no.02 and 50 HP Auto transformer starter along with allied works at LIS Jandi. a) 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 of new bushes-2 Nos., and applying sufficient amount of grease to avoid excessive wear and tear. 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. Complete Job. b) 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), fingers, thimbles etc. Extraction of damaged ATS coil and provide new tripping coil. Reassembling of the Auto transformer Starter and reinstalling the same at its installed position. Providing/filling of deficit quantity of T. Oil (approx. 10 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. Complete Job. c) Repairs to 250 mm dia foot valve assembly of pumping unit no.02 installed at LIS Jandi. The job involves disconnecting / dismantling of the foot valve assembly from the suction pipe by deploying manual labour and allied tools & tackles. Shifting / transporting to the workshop. Cleaning by washing with water to make the foot valves completely silt free. After drying them completely, carrying out necessary repair works on the valve surfaces and flanged joints by welding using good quality electrodes. Dismantling of damaged / worn-out foot valve mechanism with flap & rings etc. Complete repair to the damaged flap plate and strainer by way welding. Providing / fitting of new rubber washer cut as per size of the flap plate. Reassembling the foot valve and transporting back to the installation site at LIS. Fitting the valves to the respective suction lines with replacement of damaged rubber gaskets of flanged joints and worn-out nuts, bolts etc. Complete job including cost of material, labour charges, transportation charges and hire charges for tools & tackles. Complete Job. Note: The tenderers are requested to visit the site and quote the rate as per site conditions. Any modifications/alterations of the job felt necessary if required at the time of actual execution may be done as per actual site conditions.

Rebate on Old Parts