TTPS Operation Circle MPM II AC Plant Rectification of vibration in blower impeller fan assembly by renewing of impeller fan blades the rod and blower casing cover and commissioning of the blower A at Air washer Unit IV model No 13.5 LLD

Charges for dismantling the ‘V’ Belts, Fly Wheel [Approximate weight 500Kg] of Blower Shaft and motor pulley with bush by using the chain blocks and lifting arrangement at centrifugal fan ‘A’ Model No. 13 ½ LLD at Air washer system Unit IV. (All consumables, T&P hire charges under contractor's scope)

Charges for providing necessary supports at both sides of the blower shaft, dismantling the plummer block assembly, bearing assembly and air intake vane assembly etc. after cutting and removing of the supporting frames at both sides of the blower shaft, lifting the materials by using chain blocks if necessary scaffolding arrangements should be made and the materials should be kept at out side of the blower room as per the direction of the Engineer-in-charge. (All consumables, T&P hire charges under contractor's scope)

Charges for dismantling the front, top, side casing covers by cutting & removing of the bolt & nut, for lifting of the blower impeller assembly at Air Washer Blower 'A' at Unit IV as per the direction of Engineer-in-charge. (All consumables, T&P hire charges under contractor's scope)

Charges for cutting & removing the corroded and damaged impeller fan blades and tie rods outer and inner periphery plates from the impeller fixing hub and shifted to out side of the blower room.(All consumables, T&P hire charges under contractor's scope)

Charges for loading the materials like fan assembly, shaft with hub by using chain blocks with supporting arrangements, lifting & unloading from 9.5mtr. floor to ground floor, loading & unloading at vehicle for reconditioning work in workshop at town. (All consumables, T&P hire charges under contractor's scope)

Charges for dismantling the impeller hub from the shaft by using the Special fixer and hydraulic jack, removing key from the keyway, cleaning the shaft hub key and keyway etc. and reassembling the hub in the shaft by using hydraulic jack in proper position aligning fixing the key in the keyway for locking the hub with shaft as per the direction of the Engineer in charge. [ Special fixer, hydraulic jack and other consumables contractor’s scope]

Charges for fabrication of the inner & outer periphery blades of impeller of in existing size OD 2055mm, ID 1650mm, 4 Nos. by M.S. plate 6mm thickness, and fan blades size (810X560)mm 32Nos. by M.S. Plates 3.15mm thickness, welding with impeller hub, fixing of the 8Nos. tie rods aligning properly as per the drawing enclosed, as per the direction of Engineer-in-charge. (All consumables,materials T&P hire charges under contractor's scope)

Charges for fixing by bold of the fabricated outer & inner periphery plates with impeller hub for welding of the 32 No. Fan blades in between the outer & inner periphery plate, fixing the 8Nos. Tie rods in the impeller at both sides as pr the direction of Engineer-in - charge

Charges for renewing of 1 no. Fan Blade (or) tie rod in between the newly fabricated inner and outer periphery plate by welding.

Charges for conducting the dynamic balancing test on impeller assembly after fitting the impeller fixing hub at work shop end. [T&Ps and consumables under contractor’s scope].