Himachal Pradesh State Electricity Board Limited Tender

Complete servicing and overhauling of hydro mechanical cabinet of governor G40 (BHEL make) as per the scope of work detailed as under and complete to the satisfaction of Engineer-in-charge (i) Dismentling, inspection, testing & callabiration of distributing valve, auxiliary body and piston of governor (HMC) (ii) The distributing valve has to be dismentalled & checked for overlaps and clearances as per BHEL specification (iii) The pilot valve & needle also has to be checked for clearances and overlapping. (iv) Both the distributing valves spool & the pilot piston has to move freely & must drop in by its own weight. (v) To set the opening and closing timing, reset the cross lever and rod. (vi) Calliberation & characteristics of hydraulic ampliphier should be checked as per specifications .(vii) The pressure throttle body should be set at 20Kg./Cm² (viii) The opening and closing time of the HMC should be set. (ix) After complete overhauling and inspection, there should be no leakages from any pipe . (x) Fine Tuning of HMC should be done & tested for complete trouble free performance on full load. No hunting or any misbehaviour should take place.

Replacement of filter for HMC Governor , High Pressure filters consisting of two nos; outer- sleeves filter and another insleeve filter: both must be of brass material and made as per sample/drawing given, having two type of SS wire mesh soldered. The inner wire mesh must be of 120 micron , and the outer mesh must be of 0.07 microns , withstanding oil pressure upto 70 kg/cm2. The contractor shall complete the work as per the direction & entire satisfaction of Engineer-in-charge.