| 1 | 1 | Overhauling of Bowl Mill (XRP-903) for Unit # 8, D’ TPS | 1 | | |
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| 2 | 1.01 | Replacement of Roller Journal assembly (One RJ assembly makes one job). | 2 | 18 | Jobs |
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| 3 | 1.02 | Changing trunnion position of RJ assembly. (One trunnion of one mill makes one Job). | 3 | 18 | Jobs |
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| 4 | 1.03 | Replacement of worn out grinding roll with new/healthy one, including servicing of RJ assembly. | 4 | 12 | Nos. |
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| 5 | 1.04 | Overhauling of pressure spring assembly (One spring assembly of any mill shall be considered as one quantity). | 5 | 18 | Nos. |
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| 6 | 1.05 | Servicing/ repairing of spring support cover by machining/ tapping etc. | 6 | 18 | Nos. |
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| 7 | 1.06 | Replacement / Servicing of journal stop bolt. | 7 | 18 | Nos. |
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| 8 | 1.07 | Attending dust leakage from Journal opening cover. | 8 | 18 | Jobs |
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| 9 | 1.08 | Replacement of bull ring segment assembly when replacement of RJ assembly has been given as separate job ( Separate job for removing and fixing of all three RJ assembly shall be given). | 9 | 4 | Jobs |
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| 10 | 1.09 | Replacement of bull ring segment assembly while at least one RJ assembly is inside the bowl mill. | 10 | 2 | Jobs |
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| 11 | 1.1 | Refitting of dislocated clamping ring/bull ring segment when replacement of RJ assembly has been given as separate job( Separate job for removing and fixing of all three RJ assembly shall be given). | 11 | 4 | Jobs |
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| 12 | 1.11 | Refitting of dislocated clamping ring/bull ring segment while at-least one RJ assembly is inside the bowl mill. | 12 | 2 | Jobs |
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| 13 | 1.12 | Replacement of airport ring assembly, when replacement of RJ assembly has been given as separate Job. Complete one set (one set consist of 06 pieces). | 13 | 3 | Jobs |
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| 14 | 1.13 | Repairing of airport ring assembly in installed condition when replacement of RJ assembly has been given as separate job (Separate Job for removing and fixing of all three RJ assembly shall be given). | 14 | 3 | Jobs |
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| 15 | 1.14 | Repairing of airport ring assembly in installed condition while at-least one RJ assembly is inside the bowl mill. | 15 | 3 | Jobs |
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| 16 | 1.15 | Repairing/Replacement of bowl extension ring segment, when replacement of RJ assembly has been given as a separate Job. | 16 | 6 | Jobs |
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| 17 | 1.16 | Repairing/Replacement of venturi, while replacement of MPO & MDV are awarded as separate Job. | 17 | 12 | Jobs |
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| 18 | 1.17 | Repairing/Replacement of venturi, while MPO & MDV are in their installed condition. | 18 | 12 | Jobs |
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| 19 | 1.18 | Checking / Repairing of venturi outlet in installed condition. | 19 | 24 | Nos. |
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| 20 | 1.19 | Checking /Replacement of MPO. | 20 | 6 | Nos. |
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| 21 | 1.2 | Checking /Replacement of MDV. | 21 | 24 | Nos. |
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| 22 | 1.21 | Replacement / Checking of (leaking) Victaulic coupling rubber gasket of MPO/MDV/ transition piece. | 22 | 96 | Nos. |
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| 23 | 1.22 | Checking / Replacement of classifier inner cone, when replacements of RJ assemblies have been given as separate Jobs. | 23 | 6 | Jobs |
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| 24 | 1.23 | Fabrication and fixing of air duct vanes. | 24 | 6 | Nos. |
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| 25 | 1.24 | Repairing of 'O' collar assembly. | 25 | 24 | Nos. |
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| 26 | 1.25 | Repairing eroded portion of classifier inner cone. | 26 | 6 | Nos. |
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| 27 | 1.26 | Replacement / refitting/Servicing of classifier blade. | 27 | 216 | Nos. |
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| 28 | 1.27 | Adjustment of classifier blade operating linkage mechanism. | 28 | 12 | Jobs |
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| 29 | 1.28 | Replacement / Repairing of scrapper guard assembly. | 29 | 12 | Jobs |
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| 30 | 1.29 | Checking / Replacement of mill side liner, when replacement of RJ assembly has been given as a separate Job. | 30 | 6 | Jobs |
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| 31 | 1.3 | Repairing of Mill side liners by patching/welding (MS plate of thickness-10/12 mm for patching may be arranged from scrap). | 31 | 6 | Jobs |
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| 32 | 1.31 | Repairing/Replacement of mill side bottom liner. | 32 | 6 | Jobs |
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| 33 | 1.32 | Checking / Replacement of bottom insulation cover plate (complete set). | 33 | 6 | Jobs |
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| 34 | 1.33 | Repairing of bottom insulation cover plate. | 34 | 6 | Jobs |
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| 35 | 1.34 | Checking and inspection / Replacement of Labyrinth seal inside the mill liner body of mill. | 35 | 4 | Jobs |
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| 36 | 1.35 | Checking and inspection / Replacement of Labyrinth seal outside the mill liner body of mill. | 36 | 2 | Jobs |
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| 37 | 1.36 | Refitting/replacement of dislocated lower/upper skirt assembly. | 37 | 4 | Jobs |
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| 38 | 1.37 | Decoupling, performing alignment of mill-motor complete coupling and final coupling. | 38 | 4 | Jobs |
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| 39 | 1.38 | Replacement of damaged geared coupling of input shaft and distance piece with new-one (Healthy-one) and perform alignment. | 39 | 2 | Jobs |
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| 40 | 1.39 | Repairing of separator body, when replacement of RJ assemblies have been given as separate Jobs. | 40 | 6 | Jobs |
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| 41 | 1.4 | Checking / Replacement of bowl hub cover, when replacement of RJ assemblies has been given as separate Job. | 41 | 6 | Jobs |
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| 42 | 1.41 | Making threaded hole of any diameter on any surface of bowl mill by drilling and tapping. | 42 | 6 | Nos. |
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| 43 | 1.42 | Servicing of oil coolers of mills in installed condition (one cooler of one mill make one Job). | 43 | 12 | Nos. |
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| 44 | 1.43 | Replacement/Refitting of braided hose of lube oil pipe line. | 44 | 4 | Nos. |
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| 45 | 1.44 | Servicing of seal air valve on seal air header of mills. | 45 | 6 | Nos. |
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| 46 | 1.45 | Hard facing of bowl mill spares by 2\" chequering pattern using sequence welding technique in installed condition. | 46 | 50 | m² |
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| 47 | 1.46 | Complete dense hard facing of cap of airport ring assembly & Bowl extension ring with hard facing electrode. | 47 | 6 | Jobs |
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| 48 | 1.47 | Fabrication and Replacement of RCF Hopper chute to center pipe of mill. | 48 | 6 | Jobs |
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| 49 | 1.48 | Fabrication & Fitting of Guard / covering /shroud of RJ assembly housing by 8/10/12mm thick MS /Sailma plate. | 49 | 18 | Jobs |
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| 50 | 1.49 | Complete Overhauling of RJ assembly. | 50 | 6 | Jobs |
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| 51 | 1.5 | Servicing of Hot air gate. | 51 | 6 | Jobs |
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| 52 | 1.51 | Servicing of Hot air damper. | 52 | 6 | Jobs |
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| 53 | 1.52 | Servicing of Cold air gate. | 53 | 6 | Jobs |
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| 54 | 1.53 | Servicing of Cold air damper. | 54 | 6 | Jobs |
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| 55 | 1.54 | Attending coal/coal dust leakage from centre feed pipe/coal pipe {one patch (min size-200 x 200mm) make one Job}. | 55 | 12 | Jobs |
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| 56 | 1.55 | Servicing of lube oil system of mills (one mill make one Job). | 56 | 6 | Jobs |
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| 57 | 1.56 | Servicing of oil coolers of mill lube oil system by taking out the cooler from the lube oil system. (One cooler of one mill make one Job). | 57 | 12 | Jobs |
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| 58 | 1.57 | Servicing of lube oil pump of Bowl mills. | 58 | 12 | Jobs |
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| 59 | 1.58 | Replacement of lube oil pump of bowl mill with new /overhauled /serviced pump. | 59 | 12 | Jobs |
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| 60 | 1.59 | Metalizing & hard facing of clamping rings of bull ring segment (All 4 rings make one job). Hard facing to be done with L&T-670/700 welding electrode which shall be provided by Nigam. | 60 | 6 | Jobs |
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| 61 | 1.6 | Repairing / Welding work in Cold air Duct/ Hot air duct. | 61 | 2000 | RM |
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| 62 | 1.61 | Changing worn out coal pipe (full length or piece) / bend with new one (One pipe/bend make one Job). | 62 | 12 | Jobs |
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| 63 | 1.62 | Changing of worn out /damaged centre feed pipe of milling system. | 63 | 6 | Jobs |
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| 64 | 1.63 | Cleaning, Greasing, Servicing of electrically operated hoist (One job of one unit for 15 days). | 64 | 1 | Job |
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| 65 | 1.64 | Servicing of all electrically operated hoist of mill site.(one unit make one job of 7+ 1 under hung crane + hoist ). | 65 | 1 | Job |
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| 66 | 1.65 | Removal of one complete RJ assembly from any bowl mill by taking out journal opening cover. | 66 | 18 | Jobs |
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| 67 | 1.66 | Fixing of one no. RJ assembly in any bowl mill when RJ assembly opening cover is already opened. | 67 | 6 | Jobs |
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| 68 | 1.67 | Checking and inspection/replacement of bearings (If found damaged ) with new one of input shaft of planetary Gear Box of bowl mill. | 68 | 6 | Jobs |
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| 69 | 1.68 | Shifting of healthy RJ assembly from mill floor ( 3.5 mtr.) of unit no:- 8 to unit no:- 9 mill floor ( 3.5 mtr.) and vice versa. | 69 | 3 | Jobs |
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| 70 | 1.69 | Repairing and reconditioning of eroded portion of bowl ( erosion due to worn-out of bull ring segment) in installed condition by metalizing, hard facing, grinding and blue matching of bowl surface with bull ring segments erosion size up-to or less than 4\" x 4\" of one Segment. | 70 | 30 | Segments |
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| 71 | 1.7 | Repairing and reconditioning of eroded portion of bowl (erosion due to worn-out of bull ring segment) in installed condition by metalizing, hard facing, grinding and blue matching of bowl surface with bull ring segments erosion size more than 4\" x 4\" and up-to 6\" x 5\" of one Segment. | 71 | 30 | Segments |
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| 72 | 1.71 | Repairing and reconditioning of eroded portion of bowl (erosion due to worn-out of bull ring segment) in installed condition by metalizing, hard facing, grinding and blue matching of bowl surface with bull ring segments erosion size more than 6\" x 5\" of one Segment. | 72 | 30 | Segments |
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| 73 | 1.72 | Replacement of broken bolt of mill body to separator top and bottom liner. | 73 | 30 | Nos. |
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| 74 | 2 | Overhauling of Gravimetric Raw Coal Feeders of Unit # 8, ‘D’ TPS | 74 | | |
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| 75 | 2.01 | Replacement of COC Gear Box with new/serviced gear box. | 75 | 6 | Jobs |
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| 76 | 2.02 | Servicing / Rectification of defects of clean out conveyor of GCF. | 76 | 6 | Jobs |
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| 77 | 2.03 | Servicing/repairing of weigh span roller. | 77 | 36 | Nos. |
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| 78 | 2.04 | Repairing of end door. | 78 | 12 | Nos. |
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| 79 | 2.05 | Servicing/repairing of air operated feeder outlet gate. | 79 | 6 | Nos. |
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| 80 | 2.06 | Servicing /repairing of manual Feeder inlet gate/bunker outlet gate. | 80 | 6 | Jobs |
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| 81 | 2.07 | Servicing of seal air valve of GCF. | 81 | 6 | Jobs |
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| 82 | 2.08 | Servicing of defective COC Drive (Quadruple Helix-worm unit). | 82 | 6 | Jobs |
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| 83 | 2.09 | Replacement /Repairing of belt scrapper. | 83 | 6 | Jobs |
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| 84 | 2.1 | Attending dust leakage from GCF body by welding/patching etc. | 84 | 6 | Jobs |
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| 85 | 2.11 | Servicing/Overhauling of Gravimetric Coal Feeder Main gear box. | 85 | 6 | Jobs |
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| 86 | 2.12 | Servicing of Gravimetric Coal Feeder. | 86 | 3 | Jobs |
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| 87 | 2.13 | Servicing of clutch assembly. | 87 | 6 | Jobs |
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| 88 | 2.14 | Replacement of damaged feeder belt with new one of Gravimetric Coal Feeder. | 88 | 3 | Jobs |
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| 89 | 2.15 | Replacement of Main Gear Box of GC Feeder with new/serviced gear box. | 89 | 6 | Jobs |
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| 90 | 2.16 | Replacement of clutch assembly of GC Feeder with new/serviced gear box. | 90 | 6 | Jobs |
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