Repair of Gates on Tawi canal

Amount

Repair & maintenance of 02/05 ton capacity gates main/minors/head regulatory including replacement/ repairs of its various parts /components/fixtures etc for their continuous and smooth operations by way of dismantling of winch machines (2 ton cap.) installed on the Tawi canal/distributary system from its hoisting with the help of necessary tools, tackles and other equipments and shifting all the material to the workshop in a load carrier for the execution of the repair works as under :-AIK DOL - Repair to gate structure by way of removal of the bends in the skin leaf and the alignment of the frame work structure (after dismantling the structure by gas cutting ) by way of heat treatment , power pressing and there after welding back the leaf and the frame work member to constitute the required structure. Welding of angle/channel/vertical stiffners and skin plate to the gate structure in lieu of the perforated, corroded one along with L shaped M.S. flat hooks, drilling holes and making appropriate fastening system. Fabrication of new base plate for the winch machine and its welding at the base of the lower stem rod housing and its subsequent grinding. Fabrication and fitment of worm gear, 02 No. bearings and fasteners as per sample in lieu of damaged/missing one. Straightening of the stem rod of the winch machine by heat treatment, power pressing to obtain proper alignment for smooth vertical operation of the gateD-1 MIII :- Fabrication and fitment of 01 No. bearing and fasteners as per sample in lieu of rusted/damaged/missing one. Providing of one no. regulating handle of 02 ton cap. winch machine. Fabrication of base plate for the winch machine and its welding at the base of the lower stem rod housing and its subsequent grinding. p/f of new stem rod for 02 ton cap. winch machine with duly cutted threads and drilled holes for its engagement with gate structure for 02 ton cap. winch machine for smooth vertical operation of the gate. Repair to gate structure by way of grinding/cutting short the vertical edges of the leaf so as to facilitate the easy vertical up and down operation of the gate and removal of the bends in the skin leaf and the alignment of the frame work structure (after dismantling the structure by gas cutting ) by way of heat treatment , power pressing and there after welding back the leaf and the frame work member to constitute the required structure.D-2 MI - Welding of angle/channel/vertical stiffners and skin plate to the gate structure in lieu of the perforated, corroded one along with L shaped M.S. flat hooks, drilling holes and making appropriate fastening system after dismantling it with the help of gas cutting and removal of the bends post heating with the help of power press .Welding along the peripheral joints of upper and lower stem rod housing and the base plate. Welding work must be carried out using good quality electrodes conforming to ISI specifications. Grinding and finishing of the welded portions with the help of precision tools in such a way so as to remove blow holes, weld deposits, weld residue, sharp edges etc. Replacing the rusted fasteners and one no. bearing and p/f the new ones in place of missing ones along with one no. spur gear D-1 H/R - p/f of lower stem rod housing and 01 no. bearing, fasteners along with main gear as per sample in lieu of missing/damaged/broken ones . Repair to the rain protection pipe of 02 ton cap. winch machine by way of welding of the rain protection pipe and welding of new top cover of rain pipe and its subsequent grinding so as to prevent seepage of water into the gear/junction box.D-8A MI :- Fabrication and fitment of worm gear for smooth vertical operation of the gate in lieu of damaged/missing ones. p/f of fasteners and bearing (02 No.) as per sample in lieu of the damaged ones along with one no. regulating handle. Welding along the peripheral joints of upper and lower stem rod housing and the base plate. Welding work must be carried out using good quality electrodes conforming to ISI specifications. Grinding and finishing of the welded portions with the help of precision tools in such a way so as to remove blow holes, weld deposits, weld residue, sharp edges etc. Straightening of the stem rod of 02 ton cap. winch machine by heat treatment, power pressing to obtain proper alignment for smooth vertical operation of the gate. Repair to gate structure by way of removal of the bends in the skin leaf and the alignment of the frame work structure (after dismantling the structure by gas cutting ) by way of heat treatment , power pressing and there after welding back the leaf and the frame work member to constitute the required structure. Welding of angle/channel/vertical stiffners and skin plate to the gate structure in lieu of the perforated, corroded one along with L shaped M.S. flat hooks, drilling holes and making appropriate fastening system.D-1 MII:- Providing of new worm gear and one no. regulating handle for the winch machine. Replacing the rusted fasteners and p/f the new ones in place of missing ones along with two no. bearings. Repair to gate structure by way of removal of the bends in the skin leaf and the alignment of the frame work structure (after dismantling the structure by gas cutting ) by way of heat treatment , power pressing and there after welding back the leaf and the frame work member to constitute the required structure.. The job also includes transporting the repaired machines from the workshop to the road side near canal in a private vehicle and further shifting from the road side to the installation site with the help of manual labor. The job includes installation of the repaired machines in their embodiments with the help of necessary tools and tackles and testing the same on load after complete oiling and greasing of winch machines, grooved channels and other moving parts with good quality ISI marked lubricants for its smooth functioning. Scraping of dust/rust with emery paper and subsequent complete painting of winch machines, hoisting girder and gate structure wherever applicable with one coat of red oxide steel primer and two coats of anti corrosive paint of light blue color.. The job constitutes skilled and unskilled labor charges, material charges, carriage/transportation charges (to and fro) between site and workshop, loading and unloading charges, hire charges of tools and tackles etc. required for the complete execution of the work. Complete Job.

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS (BID ID -2193163)

NATIONAL ELECTRO-MECH COMPANY (BID ID -2203329)