Repair of Sill Beam, Side Plates, Gate Roller and Clamp Plates of Under-Sluice Gates of Dam, CPS-1

Supplying 25x150x5550mm SS plate grade A 276 Type 304L and machining it to make it 20x150x5550mm as per drawing number 107-22-1A and fixing at sill beam location including alignment ,welding, stiffening, grinding complete in all respect and testing as per instructions of Engineer In charge. The above also includes removal of existing damaged sill beam plate and its stacking at Dam top as per instructions.

Supplying 18x100mm SS plate grade A 276 Type 304L and machining it to make it 12x100mm as per drawing number 107-22-2 A&B and fixing at left and right side lateral guide location including alingment, welding, stiffening, grinding complete in all respect and testing as per instructions of Engineer In charge. The above also includes removal of existing damaged lateral guide plates and its stacking at Dam top as per instructions .

Supply of Steel Liner Plate (MS) of size 18mm x 700mm x 2800mm and fixing it including alignment, welding, grinding complete in all respect as per instructions of Engineer In charge.

Removing of shaft pin after dismantling of the gate roller assembly and repairing it with Weld worn-out areas of the shaft pin accurately in its housing and perform fusion welding using E309L stainless steel electrodes, then machining (i.e., Turning in a lathe machine to its original dimensions) as per the drawing including replacing the damaged taper roller bearings with new taper roller bearings (02 Nos of taper roller bearings in 01 set of roller) of approved make (FAG make as per the Technical specification of taper roller bearing) including water-tightening seals (KLOZURE GARLOCK make) and all the spacers and cones (as per Annexure-A), then installing and functional testing (i.e., alignment, smooth operation and absence of abnormal noise or resistance check) of the taper roller bearings, water-tightening seals (after restoring the seal integrity), greasing all the components as per the direction of Engineer-in-charge.

Executing the job of Providing and fixing of Clamp plates as per the Annexure-B (fabricated from IS 2062 Grade A36 MIN or equivalent structural steel) with nuts-bolts by tapping of the clamp plates to the required shape using properly calibrated machines so as to match the thread dimensions of the bolt's specifications (Ensuring threads conform to ISO metric thread standards ISO 261/965 and Thread depth & pitch match with the bolt specifications to ensure proper engagement with SS-304 (ISO 4017) grade bolt including SS-304 grade hex socket countersunk head cap screws for clamp plate including wielding with approved WPS and conforming to AWS D1.1 standards in the clamp plate/base plate wherever, required as per the direction of Engineer-in-charge for Under Sluice Gate of Chamera Power Station-1.