NCTPS I SE MI circle AMC 20 21 IInd Half BM Dn Attending breakdown maintenance works in Air Pre Heater of Unit I II and III for a period of 6 months from the date of taking over of site

Amount

Opening of all manhole doors and closing manhole doors after completion work, including changing of asbestos ropes and clamps in the doors, cost of consumables and T&P’s.

Removal of ash deposit around guide bearing area and inside the APH, including cost of consumables and T&P’s.

Charges for leveling and aligning of the radial sector plates and axial seal plates with respect to the rotor axis, including cost of consumables and T&P’s.

Charges for fixing up straight edge after finding the low point of sector plate, adjusting the radial seals to correct clearance and clamping the seals in both hot end and cold end of APH. (SINGLE SEALING ARRANGEMENT), including cost of consumables and T&P’s.

Water washing of air pre heater, including cost of T&P’s

Charges for dismantling of air motors/ inspection and renewal of internals, vanes, bearings and reassembling works, including cost of consumables and T&P’s.

Inspection replacing the worn out over running clutch and related works. This work involves disconnecting the Bibby resilient coupling, removing the over running clutch and its extension shaft. Replacing the worn-out over running clutch, extension shaft. Checking and correction of alignment of the Bibby resilient coupling, including cost of consumables and T&P’s.

APH – Inspection – Replacing the worn out fluid coupling of the speed reducer. This work involves disconnecting the runner half coupling, renewing the new fluid coupling or replacing the same coupling after rectification and checking the alignment and trial run, including cost of consumables and T&P’s.

Charges for dismantling cleaning of lub oil cooler nest and filters, including cost of consumables and T&P’s.

Charges for assembling of lub oil cooler nest and filters, including cost of consumables and T&P’s.

Overhauling of APH lub oil pumps and valves for support bearing and guide bearing. This work includes dismantling, cleaning, inspection of bearings, gears, internals and replacement of the same if required then reassembling and alignment works etc., including cost of consumables and T&P’s.

Changing of worn-out/damaged resilient plate and fixing of new/ reconditioned resilient plate, including cost of consumables and T&P’s.

Removing the worn-out mechanic oil seals from APH guide bearing & APH support bearing LOP’s works involves, removing the pipe line joints, pump spacer, coupling & pump shaft of the pump and changing the mechanic oil seals and reassembling, including cost of consumables and T&P’s.

Cutting & removing of leaking/worn out swivel joint of APH soot blowers top & bottom, cutting of corroded bolts, assembling of new swivel joint/ reconditioned and providing gaskets and fixing, including cost of consumables and T&P’s.

Decoupling of APH top & bottom soot blower gear box and lowering to ‘0’mtr and assembling of new/overhauling of gear box, positioning, aligning and coupling the gear box, including cost of consumables and T&P’s.

veeramuthu enterprises

M/S.KSM Engineering