Maintenance works of ID, FD,PA, Seal Air Fans and APH and their auxiliaries of Unit-8 and 9, DTPS, HTPS, Kasimpur for 02 years

Round the clock routine and preventive maintenance of ID/FD/PA/Seal air fans system of Unit No:-8 & 9 (03 shift X 365 days =1095) (Total shifts for 02 years= 2X1095=2190)

Break-down maintenance of ID fans:-

Servicing of ID Fan. (Job completion time:- 96 Hrs.)

Replacement of thrust pads and DE side bearing. (Job completion time:-16 Hrs.)

Replacement of NDE side bearing. (Job completion time:-08 Hrs.)

Replacement of ID fan impeller/shaft. (Job completion time:-48 Hrs.)

Servicing of IGV. (Job completion time:-08 Hrs.)

Replacement of liner blades. (Job completion time:-48 Hrs.)

Repairing of impeller casing (Job completion time:-08 Hrs.)

Cleaning of impeller casing (Job completion time:-08 Hrs.)

Checking and servicing of NDE bearings.(Job completion time:-16 Hrs.)

Checking and servicing of DE bearings. (Job completion time:-16 Hrs.)

Alignment of ID fan hydraulic coupling with motor. (Job completion time:-16 Hrs.)

Alignment of ID fan with hydraulic coupling. (Job completion time:-16 Hrs.)

Servicing of hydraulic coupling of oil cooler (One cooler makes on Job).

Servicing of lube oil cooler.(Job completion time:-08 Hrs.)

Installation of new/healthy lube oil pump. (Job completion time:-04 Hrs.)

Replacement of mechanical seal/bearing/replacement of cartridge of lube oil pump(Job completion time:- 04 Hrs.)

Checking/servicing of lube oil system. (Job completion time:-08 Hrs.)

Checking/servicing of outlet/inlet gate. (Job completion time:-08 Hrs.)

Servicing of hydraulic coupling. (Job completion time:-24 Hrs.)

Replacement of impeller sealing ring. (Job completion time:-32 Hrs.)

Repairing of impeller sealing ring. (Job completion time:-04 Hrs.)

Servicing of Duct blower (Job completion time:-08 Hrs.)

Break-down maintenance of FD Fans-

Servicing of FD fan. (Job completion time:-48 Hrs.)

Dismantaling and mounting of shaft with bearing assembly. (Job completion time:-32 Hrs.)

Changing/servicing of oil seal of DE/NDE side bearing. (Job completion time:-16 Hrs.)

Arresting leakage from oil pipe hose and cable of the temperature probe from the main bearing assembly. (Job completion time:-08 Hrs.)

Checking/changing of blade shaft bearing. (Job completion time:-48 Hrs.)

Assembly of the blade and the adjusting lever. (Job completion time:-32 Hrs.)

Changing/servicing of impeller servomotor. (Job completion time:-08 Hrs.)

Checking and servicing of damper. (Job completion time:-08 Hrs.)

Servicing of Lube oil system. (Job completion time:-08 Hrs.)

Servicing of Lube oil pump. (Job completion time:-08 Hrs.)

Coupling alignment of fan with motor. (Job completion time:-08 Hrs.)

Checking/changing shim of connecting rod between control head and limit switch of fan. (Job completion time:-04 Hrs.)

Servicing of Lube oil cooler. (Job completion time:-08 Hrs.)

Break-down maintenance of PA Fans:-

Servicing of PA fan.(Job completion time:-36 Hrs.)

Dismantaling and mounting of shaft with bearing assembly. (Job completion time:-32 Hrs.)

Changing/servicing of oil seal of DE/NDE side bearing. (Job completion time:-16 Hrs.)

Arresting leakage from oil pipe hose and cable of the temperature probes from the main bearing assembly. (Job completion time:-08 Hrs.)

Checking/changing of blade shaft bearing. (Job completion time:-48 Hrs.)

Assembly of the blade and the adjusting lever. (Job completion time:-08 Hrs.)

Changing/servicing of impeller servomotor. (Job completion time:-08 Hrs.)

Servicing of Lube oil system. (Job completion time:-08 Hrs.)

Servicing of Lube oil pump. (Job completion time:-08 Hrs.)

Checking/servicing of outlet gate. (Job completion time:-08 Hrs.)

Coupling alignment of fan with motor. (Job completion time:-08 Hrs.)

Checking/changing shim of connecting rod between control head and limit switch of fan. (Job completion time:-04 Hrs.)

Servicing of lube oil cooler. (Job completion time:-08 Hrs.)

Break-down maintenance of Seal Air Fans:-

Servicing of seal air fan. (Job completion time:-16 Hrs.)

Performing alignment with motor. (Job completion time:-08 Hrs.)

Replacement of NDE bearing. (Job completion time:-08 Hrs.)

Replacement of DE bearing. (Job completion time:-08 Hrs.)

Checking/servicing of DE/NDE side bearing. (Job completion time:-08 Hrs.)

Cleaning of suction filter. (Job completion time:-08 Hrs.)

Replacement/repairing/static balancing of impeller. (Job completion time:-08 Hrs.)

Servicing of suction valve/suction damper. (Job completion time:-04 Hrs.)

Servicing of discharge damper. (Job completion time:-08 Hrs.)

Servicing of Hoist:-

Servicing of PA/FD fan hoist (Capacity- 3.5Ton). (Job completion time:-08 Hrs.)

Servicing of PA/FD fan hoist (Capacity- 12.5 Ton). (Job completion time:-08 Hrs.)

Servicing of ID fan hoist (Capacity- 12.5 Ton)(Job completion time:-08 Hrs.)

Repairing/replacement of ID/FD/PA/Seal air fan ducts. (Job completion time:-01 M/ Hr.)

Break-down maintenance of AIR PRE-HEATER:-

REPAIRING OF CASING OF AIR PRE-HEATER

REPLACEMENT / RECTIFICATION AND SETTING OUT BOARD / MIDDLE BOARD / IN BOARD RADIAL SEAL AND CIRCUMFERENTIAL (BYPASS) SEALS & PLATES OF HOT END & COLD END OF AIR PRE-HEATER

REPAIRING / REPLACEMENT OF STATIC SEALS PLATE BY CUTTING, GRINDING, WELDING AFTER FABRICATION OF AT HOT END & COLD END OF APH FOR ONE NO. SECTOR PLATE

RECTIFICATION/REPLACEMENT OF ROTOR POST SEAL OF HOT END & COLD END OF AIR PRE-HEATER

RESETTING / REPLACEMENT OF AXIAL SEALS AND LEVELLING OF AXIAL SEALS PLATES BY MEANS OF ADJUSTING BOLTS IN APH

COMPLETE OVERHAULING OF SOOT BLOWERS ALONG WITH GEAR BOXES OF APH

REVISIONING / REPAIR OF AIR SEAL HOUSING OF GUIDE BEARINGS OF APH

REPLACEMENT OF ASBESTOS ROPE OF REQUIRED SIZE OF MANHOLE OF APH

CLEANING OF APH HEATING ELEMENTS BASKETS AND STEAM COIL AIR PRE-HEATER BY AIR OR WATER OR BOTH IF REQUIRED

REPLACEMENT OF BRACING PIPE OF APH

ALIGNMENT OF MOTOR WITH REDUCTION GEAR BOX

REPLACEMENT OF SPEED REDUCER (5APC) OF MAIN DRIVE OF APH

INSPECTION OF SUPPORT BEARING OF APH

INSPECTION OF GUIDE BEARING OF APH JOBS

REPLACEMENT OF ONE NO. ROTOR ANGLE 60 DEGREE. JOB INVOLVES CUTTING OF DAMAGED ROTOR ANGLE AND ASSEMBLY / FITTING OF NEW ROTOR ANGLE BY WELDING

REPLACEMENT OF ONE NO. ROTOR ANGLE 300. JOB INVOLVES CUTTING OF DAMAGED ROTOR ANGLE AND ASSEMBLY / FITTING OF NEW ROTOR ANGLE BY WELDING

REPLACEMENT OF ONE NO. T- BAR. JOB INVOLVES REMOVAL OF DAMAGED T-BAR AND FITTING OF NEW ONE BY FASTENER & WELDING IF REQUIRED.

REPLACEMENT OF ONE NO. BYPASS ANGLE. JOB INVOLVES REMOVAL OF DAMAGED BYPASS ANGLE BY CUTTING AND FITTING OF NEW BYPASS ANGLE BY WELDING

SCAFFOLDING IN COLD END OF A.P.H. FOR CLEANING OF COLD END BASKET

OVERHAULING OF LUBE OIL PUMP OF GUIDE / SUPPORT BEARING OF APH

CLEANING OF APH LUBE OIL FILTER

CLEANING OF APH OIL COOLER

LEVELLING OF ROTOR

SERVICING OF LUBE OIL SYSTEM OF GUIDE / SUPPORT BEARING OF APH. ONE JOB INCLUDES ONE LUBE OIL SYSTEM OF GUIDE / SUPPORT BEARING

CLEANING / REPLACEMENT OF COLD END BASKETS OF ONE NO. APH

OPENING OF ALL THE ACCESS DOOR OF APH HE & CE FOR INSPECTION & EXECUTION OF THE WORK & CLOSING THEM AFTER COMPLETION OF WORK BY APPLYING HOLDTITE & REPLACING OLD ASBESTOS WITH NEW ONE

SERVICING OF ROTOR DRIVE UNIT OF APH.

SERVICING OF AIR MOTOR OF APH

SERVICING / REPAIRING OF SINGLE NOZZLE CLEANING DEVICE & CHECKING OF TRAVEL OF APH

REPAIRING OF EXPANSION JOINT / STRENGTHEN OF OLD WELDING DUCT FROM FLUE GAR/AIR INLET DAMPER TO FLUE GAS / AIR OUTLET DAMPERS OF APH

SERVICING OF ELECTRIC HOIST

DISMANTLING & LOWERING OF APH HOIST TROLLEY FROM IT’S POSITION AND AFTER START OF WORK LIFT IT & ASSEMBLE IT TO THE SAME POSITION.

REPLACEMENT OF GUIDE BEARING

REPLACEMENT OF SUPPORT BEARING

REPLACEMENT OF GUIDE TRUNNION

COMPLETE OVERHAULING OF AIR PREHEATER GEAR BOX(5APC)

SERVICING OF FLUE GAS DAMPER AT APH INLET/OUTLET.

SERVICING OF PA / SA DAMPER AT APH INLET/OUTLET.

SERVICING OF GUILLOTINE GATE AT ESP INLET/OUTLET.

FABRICATION OF DAMPER FLAP OF FLUE GAS.

REPLACEMENT / REPAIRING OF BAFFLES PLATES (DIRECTING PLATES) AT ESP INLET / OUTLET (ALL FOUR PASSES OF ESP). REPAIRING OF FG DUCT UP TO ESP INLET (JUST BEFORE HONEYBEE STRUCTURE OF ESP), ECONOMIZER AND APH HOPPER. REPAIRING OF PA / SA DUCT. (AS PER SCOPE OF WORK).

REPAIRING AND INTERNAL CLEANING INCLUDING ONE COAT OF PRIMER OF HEATING ELEMENT BASKETS OF AIR PREHEATER (AS PER SCOPE OF WORK)