NIT No-10 EE (SDW) II/ (22-23) Item No. 02

Renovation/ strengthening of mechanical bar screen no. 2 with allied works at 12MGD STP Okhla by carrying out following works including all the required works, materials, arrangements tools & tackles workmanship, safety arrangements & equipments as per NHRC guidelines etc. and as per site requirement, re-modelling all the damages up to standard if occurred any complete in all respect satisfactorily. The job is also including that job/item also which are necessary to make the equipments/site operational but not taken into the estimate. Arrangement of safety equipment for the protection of staff and machine to make the working area free from all toxic gases and free from accident of channel site as per NHRC guidelines.

Plugging of total sewage water entering into the channel by desisting of channel with help of suction machine and manual labour and making necessary arrangement with gunny bags and providing dewatering system to make the area workable and remove of all floating material slit from the channel and dumping the same outside as per direction of engineer-in-charge with the help of tractor-trollry.

Dismantling /removal of existing bar screen from the channel after cutting of all rusted nut bolts with the help of gas cutter welding machine and re-fastening other fastener by required tools & tackles and chain pulley block/crane etc. as per site requirement.

Dismantling/removal of existing conveyor belt with its all mechanical parts by requires tools & tackles and chain pulley block/crane etc. as per site requirement.

Dismantling /removal of motor, gear box, upper sprocket, lower sprocket, with shaft and other mechanical parts removing and shifting to outside by deploying technical staff labour special type tripod/crane, T&P tools and tackles etc as per site requirement.

Renovation / strengthening of bar screen by replacement of all damaged rusted MS flat strips, MS-angle, sprocket sets, wire rope, moving bar screen comb, machining of shafts, making motor and gearbox foundations etc. as per sample and site requirement with all SS nut bolt & washer and making proper alignment with the help of gas cutter welding machine grinding machine and other necessary tools & tackles as per site requirement.

Renovation / repairing overhauling conveyor belt by replacement of worn out conveyor rollers complete with bearing side spiriting plates, Belt, making motor and gearbox foundations and repairing work for proper alignment of balancing as required.

Renovation/ repairing overhauling of bar screen and conveyor belt by replacement of damaged mechanical parts as worm gear worm shaft making bearing seat in housing and at the shaft on both side replacement of oil seal bearing 4 nos. includes the machining charge and lubrication.

Fixing of complete repaired bar screen with its all dismantled mechanical parts with alignment at proper level by the help of chain pulley block/crane, manual labour, safety equipments and other tools & tackles as per site requirement.

Fixing of complete required conveyor belt with its all dismantled mechanical parts with alignment at proper level by the help of chain pulley block/crane, manual labour, safety equipments and other tools & tackles as per site requirement.

Providing/Fixing of 5 HP 415 V 3 Phase 960 RPM DJB approve make induction motor. Assembling the complete motor and put on the foundation, tightening of the nut bolts.

Providing/Fixing of 02 nos. limit switches, 02 nos. main switches of suitable capacity for bar screen and conveyor belts with its internal wiring at site and connection from main panel to control main switch etc. as required.

Testing and commissioning of bar screen and conveyor belt on full load. -Alignment Test -Vibration Test -Noise Test -Connection test -Tightening of nut-bolts

MITTAL TRADING COMPANY