Annual Maintenance For Servicing Of Hoisting Equipment Of Cross Regulator Vertical Gates At Ch- 360, 585, 704, 838, 1074 Of Pbc At Guskara Sub-Division Under Dhw Division, Durgapur During The Year 2025-26.= 1 Oiling greasing of headstock assembly (for screw hoist system) of regulator gates of canal/ river by cleaning, checking, greasing, screw rod, G.M nut, Thrust b e a r i n g , guide channel, etc including all charges of man & materials which include refilling of gear oil, oiling, greasing and fixing of missing nut & bolts & oil seals etc to complete the job as per direction of EIC. 2 Taking out screw gear rod including its head stock assembly by cutting nuts and bolts from draw shutter of distributories/branch canal/minor canal/channel for replacement/after feeding the canal and handed over to the section office or as directed by the Engineer in charge. The Cost includes cost of Manpower, Cutting, all overheads with all leads and lifts complete. The cost of carraige will be provided extra as per actual basis based on PWD Schedule of Rates. 3 Servicing of headstock assembly i.e. opening the hand wheel from screw rod, including opening the thrust bearing from top and bottom thrust plate of bearing housing, nut, coller etc and cleaning all the components with the help of Kerosine and emery paper and re-fitting the same including changing necessary nuts & bolt after greasing the thrust bearing if Ok otherwise replaced by new one (excluding the cost of bearing, supplied separately) and fileing work if required for fixing to the pedestal upto the satisfaction of E.I.C. The cost includes cost of materials, man power employed, kerosene, grease, consumables like emery paper, cloths, blots & nuts, hire charges of tools & tackles etc. 4 Refitting the screw gear rod including its head stock assembly of draw type gate shutter of distributories/branch canal/minor canal/channel for replacement/prior to feeding the canal after colleting from the section office. The Cost includes cost of Manpower, tools & Plants , all overheads with all leads and lifts complete. The cost of carraige will be provided extra as per actual basis based on PWD Schedule of Rates. 5 Supply of grease. 6 Surface cleaning of metal surfaces by chemical cleaners and then by hand with emary paper, wire brush and power tool cleaners and removing dust and preparation of surface including cost of all materials, labour, machinery, scaffolding, etc., complete with initial lead for sand upto 1 km and all lifts. 7 Painting of Gates of Distributory/Branch/Minor canal/ Pump Coloum pipe/Pump Discharge Pipe & other similar components on prepared surfaces with one coats of zinc phosphate primer (airless spray preferred) 50microns/coat and one coal tar epoxy, 150 microns/coat including cost of all materials, labour, scaffolding etc., complete with all leads and all lifts. 8 Supplying, fitting & fixing of screw rod having square thread of 1.5/2 T.P.I, Material bright steel [EN‐8/EN9/forged Cl‐4 (45C8) as per IS :1875 1992/latest Revision]. dia and thread length as required and providing with a drilled hole of required dia on the other end afterflattened and supplying with one no. bolt and nut of required size and all other components as required as per direction of Engineer‐In ‐ Charge. The cost includes cost of material man power employed, consumables like cutting tools, emery paper, cloths, , hire charges ofmachineries, tools & tackles, grease, mobil etc including carriage loading & unloading as per direction of Engineer in charge. 40 ,50 MM DIA a) upto length 3 metre 9 Supplying, fitting & fixing M.S fabricated wheel in the screw hoisting system for lifting or lowering the draw shutter.The wheel consisting of suitable size ms hub to accomodate any size of G.M/C.I nut. The rim and four nos arm of wheel are made of 25mm. to 36mm. dia m.s rod complete as per direction of the Engineer‐in‐charge. The cost includes cost of materials, man power employed for dismantling and fitting fixing, consumables like cutting tools,welding rod, hire charges of machineries, like bending machine, lathe machine, grindingmachine welding set, tools & tackles etc including carriage loading & unloading.a) Up to 60mm dia M.S wheel 10 Supplying, fitting & fixing Gun Metal Nut as per requirement having 1.5/2 T.P.I square thread for screw gearing arrangement, perfectly metting with the screw rod/gear rod for lifting the draw shutter as per direction of E.I.C. The cost includes cost of materials, man power employed, consumables like cutting tools, emery paper, cloths, , hire charges of machineries, tools & tackles etc including carriage loading & unloading. 11 Supply of bearing :Bearing No. (51111) (SKF)(Thrust Bearing) 12 Supplying, fitting & fixing of screw hoisting arrangement made of MS bottom plate, top plate, collar with necessary holes on base plate and top plate to accommodate thrust bearing of suitable size as per approved drawing & design and as per direction of Engineer in charge. The cost includes cost of ms plate as per IS : 2062 -2011/ latest revision, man power employed for dismantling and fitting fixing, consumables like cutting tools, bolt & nuts of required size, hire charges of machineries, like lathe/shaping machine, grinding machine, drilling machine, tools & tackles etc including carriage loading & unloading but excluding the cost of lifting Nut/Bush, thrust bearing & wheel supplied separately.
