MID/AM/35

Repairs to 8 cusec discharge 43 mtr head HC pumping unit no. 1 at LIS Jogwan . The job involves decoupling of pump of unit no. 1 from the motor and removing the top cover, extraction of shaft and impeller assembly together with bearing bracket by using suitable tools & tackles and skilled technicians. Carriage of the impeller shaft assembly by using manual labour, loading in transport vehicle, carriage to the workshop in the mechanical transport for repairs. Repair to impeller shaft assembly at workshop by way of dismantling and extraction of damaged parts. Job includes repairs to pump shaft and impeller at damaged spots by way of re metaling then finishing to proper size so the shaft and impeller should be balanced. Providing and fitting of 2 nos. bearings (6312-2 nos.) at driving and non driving end . Providing and fitting of new bushes-2 Nos., neck rings ( 2 nos.) as per sample and applying sufficient amount of grease to avoid excessive wear and tear. Fabrication of glands and studs with nuts. Repair to bearing brackets. Re-assembling of impeller shaft assembly and shifting back to site and there after lowering at proper position, placement of oil seal and closing the top cover along with P/F of new nuts ,bolts and studs. Coupling the pump with the motor . P/F of gland packing .Priming the pump .Testing the pump on full load . The Job includes cost of material, labour (skilled and unskilled), loading charges, hire charge of tool and tackles, to and fro carriage charges.

Repairs to 180 HP oil immersed starter at LIS Jogwan. The Job involves disconnecting the power supply and subsequently the cables of the starter and carrying / shifting of the starter by manual head load / mechanical transport to the workshop. Complete replacement of starter assembly way of providing/fitting of new starter assembly comprises of plates, contacts (moving and fixed and all other allied accessories . Transporting back the starter by manual / mechanical means to the site of installation.. Topping of 25 litrs. T.oil. Fitting of starter and replacing the damaged/burnt thimbles of cables by providing & crimping of new thimbles. Connecting the cables, power supply & testing on full load. Entire job includes labour charges, transportation charges, hire charges for tools and tackles and cost of material.

Replacement of 16 sqmm overheated/damaged copper cable of pumping unit no. 1 and 2 at LIS Jogwan. The job involves disconnecting the power supply and thereafter disconnecting of burnt/damaged aluminum cable from the transformer to main switch by using skilled labour and suitable tool/tackles. The job includes replacement of overheated copper cable by providing/laying of new 16 sqmm copper cable 78 mtr. Approx. of any reputed manufacture like Havells, Polycab etc conforming to relevant ISO/ISI standards. Topping of T.Oil (120 litre) in transformer. The job also involves connecting the new cable at both ends by using aluminium connectors of suitable size properly crimped, patch roll and taped . Complete job includes the cost of cable, thimbles and allied material, transportation charges, fitting and skilled labour charges at the site of LIS Complete Job

Repairs to 300 mm dia foot valve assembly of pumping unit installed at LIS Jogwan. 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

Repair to 40 HP three phase induction motor no. 01 at LIS Mukeri .The job involves decoupling the motor from the HC pump and unfastening the foundation nuts and bolts by using suitable tools and tackles and labour. Lifting the motor out of pump house by using manual labour. Loading the motor in the vehicle and shifting the motor to the workshop . Unloading of the motor in the workshop .The job further involves dismantling of end covers, extraction of rotor from motor. Extraction of damaged winding from the stator. Cleaning of stator with compressed air and requisite chemical cleanser/CCL4. Complete rewinding by way of providing and fitting of new good quality winding wire of gauge and size (as per old sample) in the stator together with replacement of damaged /worn out wedges/strips and p/f of f-class insulation, Application of superior quality varnish (Red Becktol etc.) by spray impregnation process and drying the stator winding with hot air circulation process and thereafter checking the IR value. Providing/fitting of driving end bearing as per sample. Re-assembling the motor after greasing. Shifting the motor to LIS . Installation of the motor over the base frame by providing / fitting of nut bolts, washers etc., making of electrical connections, replacing worn out nuts, bolts for the electrical connection. Alignment & coupling with pump .Complete testing of the pumping unit. Job includes cost of all material, transportation charges, head load and labour charges for skilled / semi skilled labour, hire charges for tools & tackles at LIS. Complete Job

Repairs to 40 HP oil immersed starter no. of pumping unit 1 installed at LIS Mukeri. The job involves disconnecting the starter and shifting to workshop by mechanical transport. Thereafter dismantling of starter at workshop and replacement of worn out G.M nuts and washers, copper fingers, contacts,(moving and fixed) as per sample. Shifting the starter to LIS. Replacement of worn out/burnt copper thimbles of cables by p/f of new thimbles duly crimped and taped. Topping of 7 litrs. T.oil Connecting power supply & testing on load. Complete job includes the cost of material, labour charges and other misc. charges at site. Complete Job

Repair to the leaking portion of 150 mm dia suction pipe of unit no. 2 at LIS Mukeri. The Job involves dismantling of the suction pipe by using manual labour and cutting the rusted nuts and bolts by gas cutter, suitable tools and tackles . There after repairs to suction pipe by way of welding of leaking section in double layers from all around and providing / welding of M.S plate collar (suitable thickness) as overlap joint for strengthening. Welding with one root layer and two additional layers with 3.14 mm and 4mm I.S marked M.S welding electrodes to fill the grooves between the pipe, welding to be done by specialized skilled workman , handling with proper tools , tackles, employing semi-skilled workman and suitable tools /tackles. The weld should be spurt and gap free and to be done with good quality electrodes and slag material to be chipped off. Fitting of suction pipe fastening the flanges by using new , bolts and washers.Testing for any leakages. Complete job includes cost of material, hire charges of welding set and diesel generator set, labour charges, manual handling, transportation charges and hiring charges of tools and tackles .Complete Job

ROYAL ENGINEERING ENTERPRISES (BID ID -2035538)

N B Engineering and Electric Works (BID ID -2035301)