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| 1 | Fixed activities (PART-A) |
| 2 | FIXED/ ROUTINE/ PREVENTIVE MAINTENANCE ACTIVITIES IN TG & AUXILIARIES OF TGM-IV, 210 MW, Unit-6, PTPS, Panipat |
| 3 | Welding works |
| 4 | Carbonsteel pipes/ Valves/ Bends / Tees/Vessel etc |
| 5 | M.S. pipes/ Valves/ Bends / Tees/Vesseletc |
| 6 | Alloy steel pipes/ Valves/ Bends / Tees / Vessel etc |
| 7 | Fabrication/Erection of structures by welding process |
| 8 | Fabrication of bend/ reducer |
| 9 | VALVES |
| 10 | Servicing/ overhauling of Valves/ NRV |
| 11 | Replacement of gasket in bonnets of valves >6\" |
| 12 | Replacement of valves (butt/flanged)>4\" |
| 13 | Attending of steam/ water/ oil/ gas/ air leakages from flanges with replacement of gasket >6\" |
| 14 | Mechanical works of Electrical Actuators |
| 15 | Servicingof actuators |
| 16 | Replacement of actuators |
| 17 | Replacement of bearing/ bush/ Gear of actuators |
| 18 | LP Heaters (3 Nos.)/ HP Heaters (2 Nos.) |
| 19 | Arresting condensate water/ feed water leakage |
| 20 | Checking/ Rectification the Internals of LPH/ HPH |
| 21 | GSC (1 Nos.) |
| 22 | Attending of water leakage/gasket replacement |
| 23 | Attending of tube leakage |
| 24 | Drain Cooler (1 Nos.) |
| 25 | Replacement of flange gasket |
| 26 | Attending of tube leakage |
| 27 | STATOR WATER PUMPS (2 Nos.), HOTWELL MAKE UP PUMPS (2 Nos.), BOILER FILL PUMP (1 Nos.), JOCKEY PUMPS (2 Nos.) |
| 28 | Replacement of mechanical seal |
| 29 | Replacement of Coupling of Pump-Motor |
| 30 | Replacement of coupling bush/ rubber pads |
| 31 | Servicing/ overhauling of pump |
| 32 | Deareator (1 No.) |
| 33 | Replacement of gaskets of man hole |
| 34 | Checking/ Rectification the Internals of Deareator |
| 35 | SUCTION STRAINERS |
| 36 | Cleaning of suction strainer of TLOCB pumps/ H2CB |
| 37 | Cleaning of suction strainer of BFP/ CEP |
| 38 | Cleaning of suction strainer of fire/ emulsifier/ jockey |
| 39 | BOILER FEED PUMPS (03 Nos.) |
| 40 | Alignment ofBooster pump & motor |
| 41 | Checking/replacement of BFP/ BP thrust brg |
| 42 | Mech. Seal replacement of BFP/ Booster pump |
| 43 | Suction ‘O’ ring replacement |
| 44 | Discharge ‘O’ ring replacement by removal of cartridge |
| 45 | Alignment checking, correction of motor & Hydraulic |
| 46 | Alignment checking/ correction Hyd Coupling & BFP |
| 47 | Attending parting plane leakage of Booster pump |
| 48 | Replacement of BFP cartridge |
| 49 | Cooling jacket cleaning BFP/ Booster pump |
| 50 | Checking of bearing of hydraulic coupling |
| 51 | BFP LUBE OIL/ WORKING OIL COOLER/ SEAL WATER COOLER(15 Nos) |
| 52 | Cleaning of coolers |
| 53 | Replacement gasket/ o-ringof coolers |
| 54 | Attending of tube leakage |
| 55 | MECHANICAL WORKS FOR BFP MOTOR |
| 56 | Decoupling & Coupling |
| 57 | Replacement of bearing & alignment |
| 58 | COLONY POTABLE PUMPs (5 Nos.), FILTER BACKWASH PUMPS (3 Nos.), POTABLE CLARIFIER PUMPS (3 Nos.) and associated system |
| 59 | Decoupling/ coupling |
| 60 | Overhauling of Colony potable Pump |
| 61 | Replacement/Servicing of bearing/ housing of colony potable pump |
| 62 | Overhauling of Filter Back wash Pump |
| 63 | Replacement/Servicing of bearing/ housing of Filter Back wash pump |
| 64 | Overhauling of Potable Clarifier Pump |
| 65 | Replacement/Servicing of bearing/ housing of Clarifierpump |
| 66 | Overhauling/ servicing of potable air blower |
| 67 | CEPs (02 Nos.) |
| 68 | Decoupling & Coupling |
| 69 | Checking & replacement ofCEP Thrust Bearing includinglifting & placement ofCEP motor |
| 70 | Replacement of CEP cartridge assembly |
| 71 | C.W. PUMPS (03 Nos.) |
| 72 | Decoupling & Coupling |
| 73 | Checking & replacement ofpump Thrust Bearing |
| 74 | BCW PUMP#5 (4 Nos.), BCW DRAIN PUMPS #5 (4 Nos.) |
| 75 | Decoupling & Coupling |
| 76 | Checking & replacement ofBCW pump thrust bearing including lifting/ replacement of motor |
| 77 | Servicing/ overhauling of BCW Pump/ bowl assembly including lifting & placement of motor |
| 78 | Checking & replacement ofBCW drain pump thrust bearing including lifting/ replacement of motor |
| 79 | Servicing/ overhauling of BCW drain Pump/ bowl assembly including lifting & placement of motor |
| 80 | RAW WATER PUMPS (07 Nos. i.e. 03 Nos. of Unit-6, 03 nos. of Unit-5 & 01 No. of Unit-1 to 4) |
| 81 | DECOUPLING & COUPLING. |
| 82 | Checking & replacement ofpump thrust bearing |
| 83 | Servicing/ overhauling of Pump |
| 84 | H2CB PUMP (2 Nos.), BACW PUMPS (3 Nos.), SERVICE WATER PUMP#5 (2 Nos.), SERVICE WATER#6 (3 Nos.), CLARIFIER PUMPS#5 (3 Nos.) |
| 85 | Decoupling & coupling |
| 86 | Replacement of coupling bushes/ rubber pads |
| 87 | Checking & replacement ofpump bearing |
| 88 | Servicing/ overhauling of Pump |
| 89 | VERTICAL SUMP PUMPS (2 Nos.), CABLE TRENCH PUMPS #5&6 (03 Nos. + 03 No.) |
| 90 | Decoupling & coupling |
| 91 | Checking & replacement ofpump bearing |
| 92 | Overhauling/ Servicing of pump |
| 93 | TLOCB PUMPS (2 Nos.), FIRE HYDRANT PUMPS (2 Nos.), EMULSIFIER PUMPS (2 Nos.), DIESEL FIRE HYDRANT PUMPS (2 Nos.), DIESEL EMULSIFIER PUMPS (2 Nos.) |
| 94 | Decoupling & coupling |
| 95 | Replacement of coupling bushes/ rubber pads |
| 96 | Checking & replacement ofpump bearing |
| 97 | Servicing/ overhauling of Pump |
| 98 | CONDENSER (01 Nos.) |
| 99 | Attending of Inlet/ outlet line manhole leakage |
| 100 | Attending of condenser Tube leakage |
| 101 | Condenser cleaning using air |
| 102 | CONDENSER VACUUM PUMP (2 Nos.) |
| 103 | Bearing checking and replacement |
| 104 | Cleaning of vacuum pump coolers |
| 105 | Replacement of O-ring/ Gasket ofvacuum p cooler |
| 106 | Attending of tube leakages of vacuum pump cooler |
| 107 | EOT CRANE of TG Hall/ CW System/ RWP House/ MISC. Pump House/ Compressor House etc. |
| 108 | seals replacement |
| 109 | Bearing replacement for main hoist / aux. hoist of 125/25T EOT |
| 110 | Bearing replacement for long travel/ cross travel of 125/25 T EOT |
| 111 | Bearing replacement of CW system/ Compressor/ Misc. pump house/ RWP house |
| 112 | TRENCH/ DRAIN PUMPS (04 Nos.), MISC. OIL PUMPS (02 Nos.), and RECIRCULATION PUMPS OF CONDENSER VACUUM PUMP (2 Nos.) |
| 113 | Decoupling & coupling |
| 114 | Servicing of pump |
| 115 | GLAND STEAM/ MOT OIL VAPOUR/ BEARING CHAMBER EXHAUST FAN (6 Nos.) |
| 116 | Coupling/ decoupling |
| 117 | Servicing/ Replacement of impeller |
| 118 | MOT CENTRIFUGE |
| 119 | Replacement of bottom ‘O’ ring/ bearing. |
| 120 | Replacement of oil seal |
| 121 | Suction / Booster gear pump coupling |
| 122 | Centrifuge coupling bush or shoe pad replacement |
| 123 | Repair/ replacement of bowl gear /gear pumps/heater |
| 124 | Servicing of centrifuge in presence of service engineer |
| 125 | AOP (2 Nos.)/ JOP (01 No. AC, 01 No. DC)/ EOP (01 No. AC, 01 No. DC ) |
| 126 | Servicing of pump |
| 127 | Replacement of pump |
| 128 | Coupling/ decoupling |
| 129 | Turbine Oil Coolers |
| 130 | Replacement of O-ring |
| 131 | Gasket replacementwater side |
| 132 | Vent valve/ equalizing valve replacement |
| 133 | Seal Oil Pump (2 No. AC & 1 No. DC), Seal Oil Vacuum Pump (2 Nos.), Seal Oil Coolers |
| 134 | Seal Oil Pump servicing/ replacement |
| 135 | Seal Oil vacuum pump servicing |
| 136 | Seal Oil Vacuum pump replacement |
| 137 | GOVERNING RACK/ LP BYPASS RACK |
| 138 | Replacement ofHC/ EHC/ MTV etc. of main governing rack/ Pressure switch/ Vacuum switch/ EHC/ Limiter etc. of LP Bypass rack |
| 139 | Replacement of oil seal/ o-ring water injection system |
| 140 | HP BYPASS SYSTEM |
| 141 | Replacement ofN2 Bladder (30L/ 10L) / associated |
| 142 | Replacement ofOSU Pump/ Spares inside OSU tank |
| 143 | Replacement of coupling bush of OSU pump |
| 144 | AIR COMPRESSORS- 10 Nos. (SAC of Unit 5 -04 Nos., IAC of Unit 5 -03 Nos. & IAC of Unit 6 -03 Nos.) |
| 145 | Replacement of gasket/ O-ring of inter/ after cooler |
| 146 | Replacement of bearing ring of LP/ HP piston |
| 147 | Servicing/ overhauling of LP/ HP cylinder assembly |
| 148 | Complete servicing of comp under supervision of OEM |
| 149 | Replacement of motor pulley/ compressor flywheel |
| 150 | Checking/attending water leakage from LP/ HP jacket |
| 151 | Checking/attending water leakage inter/ outer coolers |
| 152 | Replacement of silica gel of air dryer |
| 153 | CHLORINATION (40 kg/hr & 150Kg/hr) |
| 154 | Replacement ofHPDPE pipesup to 6\" |
| 155 | Replacement of PVC pipes |
| 156 | Replacement of GI pipes |
| 157 | Replacement of valves/ flanges |
| 158 | Servicing of Chlorinator ejector |
| 159 | Replacement of RVR/ Ejector/ Filter assembly |
| 160 | CLARIFIER BRIDGE #3&4, CLARIFIER BRIDGE #5, CLARIFIER BRIDGE #6 and associated system |
| 161 | Replacement of center bearing of clarifier bridges |
| 162 | Overhauling/ servicing of Clariflocculator |
| 163 | Replacement of bearing of Driving/Driven of main drive |
| 164 | Overhauling/ servicing of Sludge valve |
| 165 | Complete Overhauling of Main Drive system |
| 166 | Overhaulingof sluice gate shutter of bridge/Clear well |
| 167 | ALUM DILUTION AGITATORS- 5 Nos. (03 Nos. of U-5 & 02 Nos. of U-6) |
| 168 | Decoupling & coupling |
| 169 | Replacement/ servicing of gear mechanism |
| 170 | Servicing/ overhauling of agitator |
| 171 | MISCELLANEOUS WORKS |
| 172 | Replacement oflocal gauge glasses |
| 173 | LP Turbine diaphragm replacement |
| 174 | Visit of crane operator during odd hrs (4hrs/visit) for non-critical jobs |
| 175 | Painting works on piping/ equipments/ structures |
| 176 | Naming works (nomenclature) on piping/ equipments/ sites |
| 177 | Dismantling of usable material from phased out Unit of PTPS for the use of Unit-6 |
