WBIW/EE/MEMD/e-NIT-16/2025/3

Servicing & maintenance of winch M/C i.e. cleaning the gears, plummer block including bearings , rope drum etc with the help of Kerosine, jute, cloth, sand paper, emery paper etc, application of grease, mobil oil in the bearings of plummer b l o c k f o r proper lubricating and supply and fitting, fixing of damaged oil seals & missing Nut & Bolts etc. to complete the job at site as per direction of Engineer in charge.

Scraping, cleaning of wire rope, rope drum, pulley and lubricating the wire rope with rope compound servo coat-140 or approved wire rope compound including setting the wire rope in proper alignment and position as necessary as per direction of EIC. The Cost includes cost of manpower employed, scaffolding charges, cost of kerosine, jute, wire brush, cloth, wire rope compound & all other incidental charges to complete the job in all respect.

18mm Rope

28mm Rope

Cast iron Double Orifice Kinetic flanged end Air Valve as per IS:1538(Table -IV&VI), Body, cover, Cowl: Cast iron , IS:210 FG 200, Float- LP Orifice: Timber core with vulcanite coating, Large orifice seat:Natural Rubber, H>P orifice & plug :Bronze IS LTB-2, Fastners:CS to IS-1367 GR.4/4.4 with Isolating Sluice Valves as per IS:14846(PD) PN- 1.0 Spindle of SS to AISI-410 and Seating materials of Bronze to IS:318 LTB-2 and with open gearing arrangement. The cast component of C.I. to IS:210 FG-200 and the Flange dimension as per IS: 1538(Table-IV & VI). 150mm(NB))

Maintenance and overhauling of V.T. / inclined pumps as per manufacturers instruction manual with all tools, tackles etc. This job includes labour charges, consumables like O - ring, sundry cleaning material etc. This job includes dismantling of all sub assemblies such as gear box, cooling pipes, bearing housing, stuffing box, discharge tee, muff couplings, shafts, column pipes, bowl assembly, bell mouth, strainer, line shaft enclosing tube etc. Reconditioning of all parts, inspection of all parts & replace these parts as per instructions (spares cost excluded) straighthening of shafts & refitting of all parts & sub assemblies with proper alignment including motor removing & refixing, test & trial for 24 hrs etc complete. Capacity above 5 cusec and upto 25 cusec pump

Trial run & Operation of Barge mounted 25cusec 4nos VT pump at massanjore Dam,District: Dumka

Skilled labour(Electrican) (1nox3Shiftx60Days)=3x60Days=180Mandays

Unskilled labour (Helper for Electrician) (1nox3 Shiftx60Days)=3x90days=180mandays.

Lifting and lowering of gangway of VT pump and essential electrical connection & disconnection of barge mounted VT pump

Fitter (Skilled labour)(4nos x 8 days=32Mandays)

Helper for fitter(Unskilled) (10nos x 8days =80mandays)

Complete servicing and heat varnishing of 415Volt, 3 Phase L.T. sq. cage induction motor after cleaning the stator and heating it up periodically and varnishing by Dr. Beck's graded insulating varnish to obtain stable IR value, cleaning up the rotor, including heating for demoisturisation, lacker coating on the surface of rotor stampings, cleaning and RO priming on the end shield covers, bearing housing and complete the necessary repairing works as per direction of E.I.C.

Above 75KW upto 180KW LT sq. cage IM

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