MTPS I CA CWS II Unit III Overhauling of ID fan gear boxes and erection of new ID fan gear box bed base frames and its complete accessories in Unit III Cooling Tower

Charges for providing & dismantling of Scaffolding & hanging platform arrangements around the fan stack area at 20mtr height (East & West and North & South).

Charges for dismantling the existing hub hood, fan blades and hub with arm sleeves assembly from the gearbox and lead outside the fan stack.

Charges for complete dismantling of gear box internals one by one, cleaning, inspection & renewal of gear box internals if necessary, reassembling, aligning of drive shaft assembly and re-commissioning of ID fan gearboxes.

Charges for renewal of worm shaft bearing after dismantling the existing worn-out / damaged worm shaft bearing.

Charges for renewal of wheel shaft bearing after dismantling the existing worn-out / damaged wheel shaft bearing.

Charges for transporting of hub, arm sleeves and fan blades (8 Nos./ Set) from cooling tower-top to ground floor and lifting the same to 12 m elevation of fan stack floor. (Necessary Transport Vehicle will be provided by TNPGCL).

Charges for assembling the blades with the respective arm sleeves (after Weighing the individual blades and respective arm sleeves) separately and fixing the hub assembly with blades to the balancing kit mounted in the Cooling Tower.

Charges for static balancing of the fan blade assembly.

Charges for dismantling of fan blades and hub assembly from the balancing kit one by one after marking proper identification.

Charges for removing gearbox assembly from the bed and keep the gearbox outside the fan stack.

Charges for dismantling the existing damaged corroded grill structure (Entire length), cutting the existing Gear box base frame corroded channels with base plate & leading outside the fan stack after providing the necessary supports inside the fan stack.

Charges for leading and transporting the scrap items by walk such as damaged gear box base frame channels, base plate, released from respective ID fans working area to the tail end (13 m elevation) of Cooling Tower - III and unloading of above scrap materials from tail end of the fan stack floor to ground floor and also loading, transporting and unloading the scrap materials to Central stores.

Charges for loading, transporting and unloading of new 150 x 75 mm base frame channel, GB base plate, joint splice plate, Style ‘A’ & 'B' Safety grills etc., including all accessories from Central stores to Cooling Tower-III ground floor and lifting the above items from ground floor to the tail end (13 m elevation) of fan stack floor and also transporting the base bed frame channel from tail end to the ID fan working area in Cooling Tower - III.

Charges for leading the 150 x 75 mm base frame from outside to inside fan stack area, taking accurate measurement in the existing Gear box base frame channels bed bolt holes over the RCC beam and providing of holes in the RCC beam channels bed bolt, cutting the accurate length of channel for fixing the new 150 x 75 mm base frame channel and its complete accessories and positioning over the RCC beam, joining the segment base frame channels to the motor front side existing base frame by using joint splice plate (4 Nos.), welding with 3 runs to the base frame, segment of base frame channel Gear box side frame with safety grills to the RCC beam channel, cutting & welding the hand rails as per the existing height.

Charges for moving the existing gear box inside the fan stack, positioning and fixing in the bed and aligning the gearbox horizontally and exactly at the center of fan stack.

Charges for leading the hub with the respective arm sleeves, fan blades assembly & hub hood inside the fan stack and assembling the hub, arm sleeves, fan blades assembly and hub hood over the gearbox one by one.

Charges for cleaning and painting of I.D fan gearbox outer surfaces, hub & arm sleeves, Tie bars and FRP fan blades with one coat of Epoxy red oxide primer and Two coats of first quality epoxy grey paint.

Cost of ID Fan Gear Box Bearing No: 32226 (SKF/FAG/NSK)

Cost of ID Fan Gear Box Bearing No: 31319 (SKF/FAG/NSK)

Cost of S.S jack bolt & nut of size M 24 x 100 mm full thread for Sl.No.15

Cost of S.S jack bolt & nut of size M 30 x 200 mm full thread for Sl.No.15

Cost of cutting Gas for Sl.No.1,11 & 14

Cost of Welding Electrodes for Sl.No. 1 & 14

Cost of Epoxy red oxide primer for Sl.No.17

Cost of Epoxy grey paint for Sl.No. 17

Cost of Epoxy Thinner for Sl.No.17

Consumables & T & P's charges for S.No.1 to 17