short dated tender - bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - industry unit; replacement of r7 diffuser with r4 diffuser onboard ins vela at nd(kar); as per sow - transportation of the pre-fabricated assembly parts/ structural components nd (karwar) including proper covering/ wrapping. , dismounting of grp part d10-01, d10-02 & d30-01 , dismounting of r7 diffuser rep 35 (port and stbd) , dismounting of closing plate- rep 1 (top& bottom), on both port and stbd side , dismounting of rep 31, 32, 14, 15 16 and rep 19 , dismounting of rep 34 (i- channel girder) both on port & stbd side c channel by disconnecting rep 18 , dismounting of rep 17 (l shaped) on port & stbd sides c channel , dismounting of rep 21 port stbd, free rep 26, 27, 28 , embarkation of yellow scaffolding for r4 , grinding of edge/ surface preparation and welding on structure of bridge-fin , precise grinding for reps removed area & welding built-up , carrying out necessary modifications (if required) on el014 mounting to ensure that the distance between top surface of el014 & el 007 is 2070 mm , installation of el14-01 (triangular element 52x-ms2-el014-1) which was cut earlier during r7 modification , installation of flat bar 52x-ms2-el121&el124 , installation of me 08 assembly , removal of two in nos. pipes assembly inside bridge fin area. blank 4 holes on 52x-ms2-el418 by means of 5 mm plate , installation of buoyant wire antenna panel (wap) as per sci-600120. , building up of existing holes on el416 for central chest mounting in situ. new holes to be drilled as per template. , installation of r4 diffuser as per sci-217042 (both port and stbd sides) , repair/ replacement of grp panels 7,8,9,10,11 & 12 based on site situation. cut piece of 6 mm plate need to be placed below panel till final decision taken on grp panel. , painting of the structure as per paint scheme , supply of screw fhc m10x40, nut m10, qty 32 nos , supply of screws fhc m10 x 30 nut m10, qty 06 nos , supply of screws fhc m10 x 45 nut m10, qty 28 nos , supply of screws fhc m16 x 55 nut m16, qty 02 nos , supply of screws fhc m16 x 55 nut m16, qty 32 nos , supply of screws fhc m8 x 25 nut m8, , qty 110 nos , supply of screws fhc m16 x 40 nut m 16, qty 11 nos , supply of rubber strip 8 mm thick, qty 03 sq. mtr , supply of rubber strip 6 mm thick, qty 03 sq. mtr , supply of silicon bond glue for sticking rubber with metal, qty 03 kg , supply of loctite 5366, qty 01 kg , supply of silicon elastomer nbr gasket thickness 2 mm, qty 02 nos , supply of anyone of the following: (qty-20 cartridges)kent sil pack silicone adhesive in pressure cartridge bluestar caf 33 black silicone adhesive in cartridge momentive rtv i33 black silicone adhesive in cartridge , scope of supply for following painta) epoxy ceramic paint chemco rf900 dft 250 um dark brown, quantity- 10 ltrs b) epoxy ceramic paint chemco rf900 dft 250 um dark black, quantity- 10 ltrs