NIT No. 05 (24-25) Item No. 1

Arrangement of all safety equipments for the protection of staff to work at height and deep channel and making the working area free from all toxic gases and free from accident during working at site as per NHRC guidelines.

Plugging of total sewage water entering into the channel by closing the incoming and outgoing gate. Desisting of channel with the help of suction machine and manual labour and making necessary arrangement with gunny bags and providing dewatering system to make the area workable and removal of all floating material, silt from the channels and dumping the same outside as per site requirement.

Dismantling / Removing of bar screen from the channel by the help of hydra crane after cutting of all support from inside and outside of channel by gas cutter and other tools & tackles as per site requirement.

Cleaning of complete bar screen by removing of sewage grit, dust with the help of water pressure, chemical processing, emery paper, wire brush and other scrubbing tools for making the complete cleaning for repairing purpose as per job requirement.

Dismantling / Removal of repairable parts like comb assembly, wire rope, shaft, wiper plate, bracket, dead weight assembly, head cover assembly and other parts from the bar screen after opening/cutting of all nut bolts, support with the help of SS cutting machine gas cutter, welding machine and re-fastening other fastener and removing of platform by required tools & tackles and handling equipments as per site requirement.

Strengthening of bar and maintain the gap as per standard of bar screen by fixing of every bar in exact groove with proper level and making alignment of all bar in equal sequence for easily and smooth working of all teeth of comb entering in the bar without any disturbance by using of SS welding process, SS cutting machine and fixing of SS nut bolts after making the hole with threads by using of drill machine and thread tools. The job includes making of straight position of all bend shape bar and replacement of damaged bar by using of required tools & tackles as per site requirement. Making straight position of both side guide channel by using of hydraulic press machine and SS welding work of all joints of whole SS Structure with proper finishing by using of grinding machining and required tools & tackles.

Repairing of SS comb of bar screen by making straight position of bend shape of comb and teeth at workshop by using of hydraulic power press machine and maintain the gap of teeth as per gap of bar for making the combination of comb teeth with bar for smooth working by using of required tools & tackles as per site requirement.

Repairing of gear box of bar screen and conveyor belt by repairing of mechanical parts like worm gear, worm shaft, making bearing seat at shaft on both side, replacement of oil seal, bearing 2 nos. includes the machining charge and lubrication.

Repairing of SS shaft of wiper assembly by making sheet on both sides with the help of lath machine and making straight position the job i/c alignment of wiper assembly with shaft for smooth working as per job requirement.

Providing of Wire rope SS304

Providing of Clamp

External Circlip

Providing of Dead Weight SS 304 (2 nos. = 1 set.)

Providing of Limit & Proximity Assembly

Providing of bearing with bracket of roller of conveyor belt (provide by Johnson)

Providing of Chain of conveyor belt Johnson make

Providing of Sprockets (1 Set = 2 Nos) of conveyor belt Johnson make

Providing of Small Roller of conveyor belt Johnson make

Dismantling of parts of conveyor belts for repairing, Servicing, oiling, greasing including the charges of job work for replacement of worn out parts like roller, bearing with bracket, Gear Box, chain, both sprocket (supply mentioned at sr. no. 15 to 18) welding of broken joints of MS structure, repairing of shaft of main guide roller, making rethreads in the adjustment rods, Assembling the all repaired and new supplied parts and making proper alignment of conveyor belt for smooth working. Repairing of hopper by welding work, nut bolts and other hardware goods as per job requirement.

Assembling of all new supplied and repaired parts in the bar screen in proper way with alignment to make the complete bar screen. Oiling and greasing for smooth operation without any sound and vibration. Complete work done by skilled workers with the help of special type tools & tackles required by job.

Replacement of oil filling and pressure pipe with all accessories for smooth working of bar screen.

Fixing of bar screen in the channel at proper level by providing/fixing of support angle/channel/sheet with fasteners in both side wall after making the hole in RCC wall by electric hammer drill machine and fixing of belt conveyor system on the platform and making proper alignment of complete system for easily and smooth work in proper way. Include the charges of hydra crane and heavy manual labour with complete tools set as per site requirement.

Repairing of MS Platform by replacement of worn out chaquer sheet and supporting channel by using of complete welding work and gas cutter including welding of all joint as required and nut bolts with washer etc. hardware goods as per site requirement.

Transport charge of repairable parts to workshop and tools & Tackles, safety equipments to and fro. Including the charges for new supplied spare parts from Ahmadabad to delhi.

Repairing and Retrofitting of panel by replacement of burnt wiring and replacement of contactor and relay setting of timer for automation mod to running of bar screen timely according of timer.

Testing / Commissioning of Bar Screen on full load.

Jal Dhara Engineers India (BID ID -1557997)