PRESS NIT No.5, ITEM NO. 02 (2025-26

equipment for the servicing and operation of a 20-ton capacity gantry crane for gate repair works at the barrage. The work shall involve the operation of the crane, stop log handling, underwater installation with divers, and support for associated miscellaneous tasks, as detailed below: Crane Operation and Support Services.One (1) Skilled Gantry Crane Operator shall be deployed for precise operation of the gantry crane throughout the gate repair period and Four (4) Skilled Helpers shall assist in miscellaneous operations including for weir side gates :(a)Mounting and securing the hanger assembly onto the gantry crane and inspecting the fitting. (b)Repeated connection/disconnection of the gantry power cable to the gate socket to maintain uninterrupted power supply. (c)Continuous observation of the gearbox, brake assemblies, and crane movement during operations. (d)Ensuring proper rail alignment of the gantry crane throughout the operation. Misalignment may lead to derailment or tipping, which poses a serious safety risk. Stop Log Handling and used to stop the pond water during the gates repairing work.. (a)Using the gantry crane and hanger, three (3) pairs of stop logs shall be lifted from the rest boom located on the pier and transported to the designated barrage gate under repair. (b)The alignment of the gantry and precise placement of stop logs shall be maintained by the helpers under the supervision of the crane operator. The agency shall provide a fully equipped diving team comprising: (i).Two (2) Professional Divers (ii).Two (2) Diver Assistants (iii).One (1) Surface Supervisor to monitor the underwater operation and manage diver safety (e )Diving Equipment & Safety Gear includes:Oxygen cylinders, Diver suits and goggles, Life jackets, Jetting machine (for silt removal) with compressor and Safety harnesses and belts. The following underwater activities will be carried out under supervision: 1.Stop Log Placement: Ensure stop logs are accurately positioned in the grooves of all three piers, reaching up to the sill level for effective water stoppage. 2.Silt Removal at Sill Level: In case of silt accumulation, use the jetting machine to remove the deposit and allow proper placement of stop logs. 3.Alignment Maintenance Underwater: Ensure that stop logs do not tilt during installation. Misalignment may lead to jamming or unbalanced load on the gantry. 4.Obstruction Management: If the stop log gets stuck in the groove and the crane shows load, the hanger must be immediately detached, and the obstruction cleared underwater to avoid crane tipping. 5.Leakage Control: If stop logs show leakage, it must be sealed using jute bags, dhotis, rubber strips, or leak-proof compound to maintain water levels and ensure a dry working condition for gate repair. 6. post-Repair & Emergency OperationsOnce gate repair is completed: (a)The stop logs shall be removed and shifted to the next gate or back to the rest boom using the crane and hanger. (b)The previously worked gate shall be shut down properly and declared free for operation. ©The crane, hanger, and stop logs shall be returned to the department in the same condition as received.

The agency shall provide, install, maintain, and dismantle a scaffolding system/temporary working platform for carrying out essential maintenance and repair works under the weir gates of the barrage.This platform will facilitate operations such as:Greasing and oiling of gate mechanical components Technical Specifications The scaffolding shall be constructed using: (a)40 mm dia bamboo poles or mild steel (MS) tubes (b)Horizontal and vertical members placed at 1.5 cm center-to-center spacing ©Cup & lock system for secure jointing (d)MS clamps, wooden planks (challis), support ropes, and strips The system shall be erected by expert labor experienced in working under and near water conditions. With safety measures • All scaffolding materials, tools, and labor shall be transported to the specific working gate by the agency using their own boats and transport systems.• During platform erection, all required safety gear must be present at the site and ready for use. All activities shall be carried out strictly under the direction and supervision of the Engineer-in-Charge.NOTE- In the event of sudden water discharge at the barrage during ongoing scaffolding work, if the scaffolding needs to be dismantled before the work is completed, the agency shall be required to reinstall the same at the direction of the Engineer-in-Charge once conditions permit. No extra payment shall be made for such repeated installation/dismantling due to emergency conditions.

Improvement, Repair, and Maintenance of weir side Gates (Gate No. 01 to 117) at Yamuna River Barrage Improvement, repair, and routine maintenance of weir side gates (Gate Nos. 01 to 17) of the Yamuna River Barrage. The objective is to ensure smooth, reliable, and safe operation of the gates by carrying out the following activities: a) Oiling and greasing of all moving and stationary components of the gates, as and when required, to ensure corrosion-free and frictionless operation.(b) Lubrication and adjustment of the hoisting mechanism, including: (a)Application of oil and grease to hoist parts (b)Setting and alignment for accurate and stable support ©Ensuring smooth and synchronized movement of hoisting equipment of gates. (d)Ensuring that the gates close properly and completely without obstruction or malfunction (e)All work shall be carried out under the supervision of the Engineer-in-Charge, in accordance with approved technical standards and safety procedures. The work includes thorough cleaning of the exposed steel surfaces of gates, including both the front and back sides of Gates No. 03 to 12 of the underwear section of the barrage. The cleaning operation shall cover the following:• Manual cleaning of all steel parts and gate components, especially those located on the back side of the gates (submerged in raw water) and exposed to prolonged water contact. (a )Removal of algae, silt, floating debris, waterborne sludge, and rust deposits accumulated on the surfaces due to exposure to raw water Cleaning shall be carried out using stainless steel wire brushes by skilled and experienced laborers and special attention shall be given to the grooves, joints, and edges of the gates to ensure complete removal of deposits and contaminants. All work is to be executed as per the directions and supervision of the Engineer-in-Charge

Raghunath Rubber Industries (BID ID -1595370)