Works of Preventive and Breakdown Maintenance of conveyor systems and different auxiliaries of CHP also repair/ rectification, overhauling, installation of different size conveyor roller of CHP-A and CHP-B, OBRA TPS

Amount

PART A-Replacement of bearing of primary/secondary/pulley including decoupling and coupling after alignment of pulley to gear box along with dismantling and re-installation of hood covers.

Replacement of gravity take up pulley bearing including all rigging work

Replacement of pollard bearing of conveyors including bearing of free end side of primary/secondary of head drum & tripper also.

Repairing of shaft (both side) of pulley at site after removing bearing/sleeve and replacing sleeve bearing New/Old including commissioning of the pulley.

Repairing of guide rollers after removing the same from conveyors and this will include the completion work of cleaning greasing, replacement of parts if required and reinstallation

Greasing of trough/return Rollers

Repairing of Chute/Patching of holes in the different Chute of conveyor system by welding of M.S. Plate and Welding up to size 0.01 Sq. M. (100 Sq. cm. = 01 no. patch)

Replacement of damaged box duct side packing of conveyor No. 8A/B & 9A/B

Replacement of damaged box duct side packing of all conveyor except.

Replacement of fluid coupling unit by new/repaired one.

Repairing of fluid coupling after removing and re-fixing the same at site of conveyor.

Replacement of damaged resilient plate after removing fluid coupling of conveyor system.

Replacement of Chute inspection door with locking arrangement and their installation.

Fabrication & erection of Chute inspection doors with locking arrangement and their installation.

Fabrication and installation of new Coal centering plate/adjusting plate after removing the damaged one.

Fabrication and installation of new flap gate site including removal and shifting of damaged gate to scrap yard.

Greasing of pollard/covered bearings of conveyors.

Replacement of trough roller structures

Replacement of impact roller structures

Replacement of trough rollers with transportation of New/repaired rollers including lifting of belt etc., shifting of damaged Rollers to the store (Conveyor No. 4A/B, 10A/B, 11A/B, 12A/B,15,16,17, K-10).

Replacement of trough rollers with transportation of New/repaired rollers including lifting of belt etc., shifting of damaged Rollers to the store (Conveyor No. 8A/B, 9A/B).

Replacement of Conveyor No. 4A/B return rollers with transportation of new/old from store to site with replacement of brackets if required along with shifting of damaged rollers to the store.

Replacement of Conveyor 15,16,17,K-10 & Conveyor of S/R return rollers with transportation of new/old from store to site with replacement of brackets if required along with shifting of damaged rollers to the store.

Replacement of Conveyor No. 10A/B,11A/B,12A/B return rollers with transportation of new/old from store to site with replacement of brackets if required along with shifting of damaged rollers to the store.

Replacement of All conveyor except Sl. No. 19.1 & 19.2 return rollers with transportation of new/old from store to site with replacement of brackets if required along with shifting of damaged rollers to the store.

Replacement of impact roller of conveyor 16, K-10 under the reclaiming chute of old and new stacker/re-claimer

Repair of Trough Roller Structure

Repair of Impact Roller Structure

Re-fixing/Placing back the fallen but healthy rollers of structure ofTrough Roller Conveyor 4A/B.

Re-fixing/Placing back the fallen but healthy rollers of structure of Impact Roller Conveyor 4A/B.

Re-fixing/Placing back the fallen but healthy rollers of structure of Return Roller Conveyor 4A/B.

Replacement of the guide roller by new/repaired including transportation

Repair of damaged guide channel of gravity take-up including all cutting and welding and handling of materials from store to site and back.

Topping–up of oil in gear boxes of conveyors system including transportation of oil from the site store to site of work and vice versa.

Topping-up oil in the fluid coupling of conveyor system including transportation of oil from site store to site work and vice-versa.

Replacement of conveyor belt trapped inside box duct side plate and side packing.

Checking & replacement of damaged multi disc/bolt/low speed coupling bolt along with rubber bush, if any tightening of all the bolts

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e. lifting of take up etc. (Snub pulley of conveyor 4A/B, 8A/B, 9A/B, 10A/B, 11A/B & 12A/B)

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e. lifting of take up etc. (Intermediate pulley of conveyor 4A/B, 9A/B,10A/B)

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e. lifting of take up etc. (Gravity/gravity bend pulley of Con. 4A/B, 8A/B, 9A/B, 10A/B, 11A/B& 12A/B15, 16, 17, K-10)

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e.Tail pulley of Con. 4A/B, 8A/B, 9A/B, 10A/B, 11A/B, 12A/B,

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e.Tail pulley of conv.15,17,Boom conv. of S/R

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e. Tripper bend/Head pulley

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e. Head/primary/secondary/drive pulley of con. 8A/B ,9A/B, 11A/B, 12A/B, 15,16,17,K-10

Replacement of the pulley of conveyor system by new/repaired including transportation both side & all rigging work i.e. Head/primary/secondary drive pulley of con. 4A/B & 10A/B

Replacement of Damaged scrapper assembly by new fabricated assembly.

Replacement of Damaged rubber scrapper and duct packing of conveyors.

Adjustment of belt while going out by adjusting pulley feeder assembly.

Fixing of bunker grid rods including its removal from the position, if required and its refitting in position this will also include the fabrication and installation at the place of necessary grids.

Dismantling of hood covers of different conveyors and reinstallation of the same after completion of works (Head pulley of conveyor & trippers).

Dismantling of hood covers of different conveyors and reinstallation of the same after completion of works (Tail pulley of conveyors).

Overhauling of self aligning structure of conveyor system after removing the same from position and installation after necessary overhauling. This will also include the replacement of spare parts too if required

Replacement of both side plates of box duct of conveyor system after fabrication at site (Up to two Mtrs).

Replacement of both side plates of box duct of conveyor system after fabrication at site (Above two Mtrs).

Fabrication & Installation of back plate after dismantling and shifting up to scrap yard.

Alignment of the motor to reduction gear box.

Removal of the top cover of the gear box and to install the same after completion of the work.

Replacement of the intermediate pinion shaft/bearing of gear box of conveyor No. 4A/B, 8A/B, 9A/B, 10A/B, 11A/B including removal of top cover.

Replacement of input pinion shaft/bearing of gear box of con. No. 4A/B,8A/B,9A/B, 10A/B,11A/B,12A/B including removal of top cover.

Replacement of the output wheel fitted with output shaft/bearing of gear box of con. 4A/B, 8A/B 9A/B, 10A/B, 11A/B & 12A/B8A/B including removal of top cover.

Repairing including replacement of old model hold back ratchet of gear boxes.

Replacement of complete gear box old/new with all internals and associated works.

Overhauling of reduction gear boxes of conveyors No. 4A/B, 10A/B, 11A/B, 12A/B 15,16, 17, K-10 gear box.

Overhauling of reduction gear boxes of conveyors 8A/B, 9A/B gear box.

Overhauling of reduction Tripper gear boxes of conveyors

Re- railment of derailed trippers by means of necessary lifting arrangement including the work of alignment of square bar in derailed Zone Up to two Wheels

Re- railment of derailed trippers by means of necessary lifting arrangement including the work of alignment of square bar in derailed Zone Up to four Wheels

Work on square bar caused due to derailment etc. of trippers including its alignment tightening of bolts and welding etc.

Repair of broken link of chain of chain-sprocket system of traveling tripper along with associated work if any.

Replacement of complete chain of chain sprocket system of traveling trippers.

Replacement of drive end and driven end side sprocket of chain sprocket system of chain sprocket system of travelling tripper.

Replacement of complete gear box of tripper 11A/B & 12A/B by new/old required the work shall involved dismantling installation assembly and alignment.

Replacement of the main drive shaft (axle) of the tripper 11A/B & 12A/B

Fabrication & installation of additional Vertical support according to size of the existing support at site at Conv. 11A/B & 12A/B.

Fabrication & Installation of middle support modified from its bolting with the channels of square bar of Tripper 11A/B & 12A/B.

Leveling of square bar channels and its bolting.

Removal of inspection doors and side covers of gear box to check the condition of gear teeth & bearings and new oil filling while low level in gear boxes along with transportation of oil from store to conveyor site & vice-versa.

Repairing/overhauling of sump pump of conveyor 17&K-10 sump well along with spares of pump & labour charges.

Repairing of gravity take up box of Con. 15, 16, 17& K-10 while fitted on travelling patch of guide channel. Clamping of belt.

Assembling of spare pulley with bearing.

Replacement of damaged slewing pinion by new/repaired one.

Replacement of damaged shaft/oil seal of slewing gearbox.

PART-B Repairing/Overhauling and Installation of different size of Conveyor rollers of (Trough Roller) Coal Handling Plant, ‘O’TPS, Obra.

Repairing/Overhauling and Installation of different size of Conveyor rollers of (Return Roller) Coal Handling Plant, ‘O’TPS, Obra.

Repairing/Overhauling and Installation of different size of Conveyor rollers of (Impact Roller) Coal Handling Plant, ‘O’TPS, Obra.

PART C ( ACHP)- Dismantling of damaged/worn-out coupling and or driving shaft and any other worn-out gears etc. of Pusher, reasonable alignment with motor and commissioning. It includes replacement of coupling of motor also.

Replacement/repair of broken twisted supporting pipe of overhead conductor.

Replacement of stay wire with turn buckle.

Alignment of conductor pole.

Dismantling, overhauling with replacement of damaged /worn-out parts and lubricating oil and re-assembly. Alignment with motor and commissioning. It includes alignment of motor reducer, platform, fixing of keys, nut & bolts.

As above along with dismantling and replacement of damaged /worn out wheels, shaft and gear by new /repaired by Department.

Dismantling of break system and wagon buffer, overhauling with replacement of damaged/worn-out parts and re-assemble.

Dismantling and removal of damaged and dislocated top cover taking out counter weight from the boxes placing the boxes in position, making holes in the place of boxes and frame, tightening the boxes with frames, filling of counter weights and fixing of top covers.

Dismantling, repair of damaged /worn-out coupling of driving shaft and any other worn out gears etc. of tippler reducer, re-assembly & alignment with motor and commissioning. It includes replacement of motor coupling also.

Repair and re-fixing of damaged/displaced top beam of wagon tippler.

Repair of twisted / broken top beam of wagon tippler.

Repairing of connecting arms of wagon tippler with replacement of worn out parts.

Re-setting of displaced rest wall and replacement of broken worn out studs.

Repair of side jack with replacement of worn out parts.

Re-setting of steel plate or rubber packing of top beam.

Servicing of side centre wheels of wagon tippler with replacement of worn out parts.

Replacement of broken /damaged or re-fixing of fallen/ dislocated platform rails with clits, nut & Bolts.

Repair/replacement of cage ribs /stiffeners.

Repair of broken/damaged round of side box beam by cutting and welding.

Repair of platform angle

Repair of shock absorbers with replacement of worn out parts.

Repair of platform plate.

Repairing of mesh/jolly of Wagon Tippler by cutting &welding.

Dismantling of reducer pinion and connecting arms, overhauling with replacement of damaged/worn out parts and lubricating oil, re-assembly alignment of motor reducer and pinion.

Dismantling of break system overhauling with replacement of damaged/worn-out parts, oil and re-assemble and commissioning.

Dismantling of shock absorber guide rollers and connecting arms, overhauling with replacement of damaged / worn-out parts and re-assemble.

Replacement of rubber packing and plates where damaged on top beam.

Dismantling of side jacks, rest walls and side support bearings, overhauling with replacement of damaged/worn-out parts and re-assemble.

Dismantling of rest rollers and cradles, overhauling with replacement of damaged/worn-out parts and re-assembly.

Repair of platform rails, clits and bolt & nuts.

Dismantling, overhauling with replacement of damaged/worn out parts, lubricating oil, re-assemble and alignment with motor & commissioning belt feeder in addition to servicing and checking of all drums.

Repair of worn out damaged beam/channel of structure.

Replacement of worn out/broken adjusting bolt of belt feeder.

Dismantling, overhauling with replacement of damaged/worn out parts, re-assemble, alignment with motor and commissioning of swing feeders. It also includes replacement of damaged/ worn out cam, bearing, connecting arm, cam wheel and shaft of swing plate.

Repairing of mesh/jolly of Swing Feeders by cutting & welding.

Dismantling, overhauling of reducer & drum with replacement of worn out/damaged parts, lubricating oil, re-assemble, alignment with motor and drum and commissioning of reducer of conveyor No. 1. In case of K-2, , K-7, overhauling of break system is also to be done.

Dismantling, overhauling of reducer & drum with replacement of worn out/damaged parts, lubricating oil, re-assemble, alignment with motor and drum and commissioning of reducer of conveyor No. 2. In case of K-2, , K-7, overhauling of break system is also to be done.

Dismantling, overhauling of reducer & drum with replacement of worn out/damaged parts, lubricating oil, re-assemble, alignment with motor and drum and commissioning of reducer of conveyor No. 3/K13. In case of K-2, , K-7, overhauling of break system is also to be done.

Dismantling, overhauling of reducer & drum with replacement of worn out/damaged parts, lubricating oil, re-assemble, alignment with motor and drum and commissioning of reducer of conveyor No. 6. In case of K-2, , K-7, overhauling of break system is also to be done.

Dismantling, overhauling of reducer & drum with replacement of worn out/damaged parts, lubricating oil, re-assemble, alignment with motor and drum and commissioning of reducer of conveyor No. 7. In case of K-2, , K-7, overhauling of break system is also to be done.

Dismantling, overhauling of reducer & drum with replacement of worn out/damaged parts, lubricating oil, re-assemble, alignment with motor and drum and commissioning of reducer of conveyor No. 8. In case of K-2, , K-7, overhauling of break system is also to be done.

Dismantling, overhauling of reducer & drum with replacement of worn out/damaged parts, lubricating oil, re-assemble, alignment with motor and drum and commissioning of reducer of conveyor No. 9. In case of K-2, , K-7, overhauling of break system is also to be done.

Servicing and repairing of trolleys with replacement of damaged pulley wheels, shafts, bearing and structures of the conveyor No.1

Servicing and repairing of trolleys with replacement of damaged pulley wheels, shafts, bearing and structures of the conveyor No.2

Servicing and repairing of trolleys with replacement of damaged pulley wheels, shafts, bearing and structures of the conveyor No. 3/K13

Servicing and repairing of trolleys with replacement of damaged pulley wheels, shafts, bearing and structures of the conveyor No.6

Servicing and repairing of trolleys with replacement of damaged pulley wheels, shafts, bearing and structures of the conveyor No.7

Servicing and repairing of trolleys with replacement of damaged pulley wheels, shafts, bearing and structures of the conveyor No.8

Servicing and repairing of trolleys with replacement of damaged pulley wheels, shafts, bearing and structures of the conveyor No.9

Replacement of belt tensioning system with removal and replacement of counter weights for the Conveyor No. 1

Replacement of belt tensioning system with removal and replacement of counter weights for the Conveyor No. 2

Replacement of belt tensioning system with removal and replacement of counter weights for the Conveyor No. 3/K13

Replacement of belt tensioning system with removal and replacement of counter weights for the Conveyor No. 6

Replacement of belt tensioning system with removal and replacement of counter weights for the Conveyor No. 7

Replacement of belt tensioning system with removal and replacement of counter weights for the Conveyor No. 8

Replacement of belt tensioning system with removal and replacement of counter weights for the Conveyor No. 9

Repairing of Conveyor belt with Belt Fasteners Making of fasteners joint in all conveyors and belt feeders.

Repairing of Conveyor belt with Belt Fasteners Shifting and laying of conveyor belt for fastener joint.

Opening of side covers of pedestals. Cleaning, checking, greasing and refitting of covers of drums up to dia. 630 mm.

Opening of side covers of pedestals. Cleaning, checking, greasing and refitting of covers of drums Above 630 mm. & up to 1000mm.

Opening of side covers of pedestals. Cleaning, checking, greasing and refitting of covers of drums Above 1000 mm. & up to 1290 mm.

Dismantling of damaged drum from foundation, taking out pedestals, grease protector and bearings, fittings of new/old bearings, grease protector and pedestals in new/repaired drums, greasing and installation. Damaged drum should be shifted to site store and new/repair drum shall be collected from store to side Drum up to dia 630mm

Dismantling of damaged drum from foundation, taking out pedestals, grease protector and bearings, fittings of new/old bearings, grease protector and pedestals in new/repaired drums, greasing and installation. Damaged drum should be shifted to site store and new/repair drum shall be collected from store to side Drum above 630mm and up to 1040mm

Dismantling of damaged drum from foundation, taking out pedestals, grease protector and bearings, fittings of new/old bearings, grease protector and pedestals in new/repaired drums, greasing and installation. Damaged drum should be shifted to site store and new/repair drum shall be collected from store to side Above 1040mm and up to 1290mm

To take out shaft from conveyor drums and re-fitting of new/repaired shaft given by department Drum up to dia 630 mm

To take out shaft from conveyor drums and re-fitting of new/repaired shaft given by department Drum Above 630mm and up to 1040 mm

To take out shaft from conveyor drums and re-fitting of new/repaired shaft given by department Drum Above 1040 mm and up to 1290mm

Refitting of shaft at bearing and coupling portions of drums Up to dia 630mm

Refitting of shaft at bearing and coupling portions of drums Above 630mm and up to 1290mm

Dismantling, overhauling with replacement of damaged/worn-out parts, reassemble, and installation and commissioning of damper gate reducer system.

Dismantling of old and worn-out damper gate, fabrication and erection of new damper gate. It also includes dismantling and re-fixing of top duct.

Fabrication and erection of new coal centering plate after removal of damaged one.

Fabrication and repairing of chute inspection doors with locking arrangement and their installation.

Repairing of chute by patching of holes in the different chute of conveyor by M.S. Plate and welding (up to 0.25 sq. mtr.per job)

Overhauling of monorail 20 MT capacity crane installed at conveyor No. 2.

Overhauling of monorail 20 MT capacity crane with replacement of worn-out parts as per requirement.

Dismantling of damaged/worn-out stainless steel/M.S. coal charging plate, fabrication and erection of new stainless steel/MS coal charging plate in the duct of conveyor 2A,2B.It includes dismantling of removal of scrappers also.

Repair of angle of conveyor structure.

Repair of channel of conveyor structure.

Replacement of damaged rubber scrapper and duct skirt.

Replacement of damaged box duct side packing of Transfer point No.1, Swing feeders, vibrating feeders and conveyor 3A& 3B.

Replacement of damaged box duct side packing of All conveyors and belt feeders except item No. 23.01

Repairing of damaged/worn-out rubber roller structures of different conveyors by new / repaired structure. It includes both way transportation also.

Fabrication and erection of steel scrapper with rubber packing.

Alignment of motor, modification of its foundation and replacement of coupling as per requirement of 0.4 KV-20KW to 50KW motor

Alignment of motor, modification of its foundation and replacement of coupling as per requirement of 0.4 KV-51 KW to 100KW motor

Alignment of motor, modification of its foundation and replacement of coupling as per requirement of 0.4 KV-101KW to 199KW motor

Alignment of motor, modification of its foundation and replacement of coupling as per requirement of 6.6 KV-200KW motor.

Dismantling, overhauling, installation and commissioning of de-watering pump at various site of CHP.

Picking and removal of foreign materials with Ex. MS bars, angles, channels, stone blocks, nuts & bolts and conveyor belt etc. from all the corners of coal yard area by employing manual labors and stacking in the scrap yard of CHP. At least 2Nos. labors shall be engaged in the working days in general shift. (One month work shall be treated as one job)

Minor/misc. Repairing work i.e. removal of broken bolts, brake liner fixing, conv. belt adjustment, stair minor repairing, belt adjustment, minor patch works on ducts/chute, oil leakage arrested from gear box/brake assembly, Dewatering pump cleaning, bush fitting in Dewatering pump, Dewatering pipe line repairing, coupling /decoupling of all auxiliaries, minor welding works on pulley, replacement of conv. roller, repairing of roller’s bracket, cover opening /closing of crusher & motor , repairing of grease gun of crusher, minor repairing of hoisting system of CHP, broken cam replacement of S/F, brake motor replacement, repairing of hydraulic jack, Removing/Fitting coupling in motor/Gearshaft , making key and refitting, Repairing & Resetting of brake assembly of WT pusher and other conveyor, Shifting greasing and refitting of fallen rollers. other all minor works which are required to smooth running of CHP

Deen Dayal (BID ID -5166395)