NCTPS I SE MI circle Boiler Maintenance Division Annual Overhaul works for the year 24 25 Specification No 56 24 25

Amount

Overhauling of burner tilting mechanism & components. Removing inner and outer panel doors, reach rods, burner tilting mechanism Components & inspection, cleaning rectification of defects and alignment of burner tilting mechanism components, reassembling with proper lubricants, fixing of inner & outer panel doors. Charges inclusive of consumables, hire charges for T&P’s.

Overhauling of coal compartment assembly: Dismantling of old coal compartment assembly from the respective elevations, cleaning and preparing the respective elevations, checking of coal nozzle & tips, rectification if any refixing of coal compartment assembly inside the respective elevation checking the clearance & burner tilt etc. Inclusive of consumables and hire charges for T&P’s.

Overhauling of oil compartment assembly: Removal of oil compartment assembly (oil gun guide tube) from the respective oil elevation, cleaning, checking dimension, guide tube assembly and supports & rectification of defects, Removing the oil nozzle tip, overhauling of nozzle tip and linkage, checking the holds lubrication of pins, refixing oil nozzles tip and checking the clearance with wind box refixing oil gun guide tube scanner, igniter guide tube assembly etc., Charges inclusive of consumables and hire charges for T&P’s.

Overhauling of air compartments: Dismantling of air compartment nozzle tip, Overhauling of air nozzle tip and its linkage, pin etc., checking the pins, Rectification, checking the clearance, refixing after lubrication. Inclusive of consumables and hire charges for T&P’s.

Rectification of oil gun stationary parts: Cutting the existing damaged bolts/studs from the oil gun, fixing the flange, drilling grinding and sizing the same for fixing the bolts/studs welding and checking the alignment with the oil compartments for proper fixing. Inclusive of consumables and hire charges for T&P’s.

Checking of burner assembly vertical alignment in inside and outside with reference to the top burner tip after providing necessary scaffolding, checking of burner tips horizontal alignment and operation checking after assembling of coal bend. Inclusive of consumables, hire charges for T&P’s.

Dismantling of burner tilt external link assembly in AB-CD elevation and CD-EF elevation cleaning. Assembling back and aligning in original position for smooth operation. Inclusive of consumables, hire charges for T&P’s.

Disconnecting the SADC stuffing box from power cylinder, removing stuffing box flange inspection the gland packing and the jammed SADC components, dismantling, rectification of defects assembling the SADC with new packing and lubricants replacing the damaged link plate cutting & new link plate position welding the flange checking the clearance from shaft and stuffing box connection the old/new link plate with power cylinder and providing air line modification with legress nipple and operation of SADC etc. Inclusive of consumables and hire charges for T&P’s.

Foam seal sealer 30-45 (Dum Dum paste ) Hy seal 30-45 Dum Dum putty

Non Metallic Compressed Asbestos fibre joining sheet -2000mm x1500mmx3mm Make - champion /Klinger/spitmaanm/ferolite Max .Tem -3500 C ,Max pr-25 Kg/cm2 GrW/3 IS No-Is2712/1998 Colour - Red

m12x40 HT bolt with one nut

m16x50 HT bolt with one nut (If the material is available in stores at the time of execution of work, the material will be supplied by TANGEDCO)

NITHYASHREE ENTERPRISES (BID ID -1067827)