unit 1 esp overhauling work , dry cleaning work . dry cleaning of esp starting from esp inlet duct to esp outlet duct , all esp hoppers , gas distribution screens , all emitting electrodes and collecting plates and other allied zones . , water washing work . water washing of total esp internal , including all hoppers , collecting plates , emitting electrodes and other allied zones . at the time of water washing if any chocking found in the hoppers , the choking shall be cleared immediately . , ash cleaning & evacution the total ash cleaning / removing / evacuation from beneath of the esp hopper area after the esp & its hopper cleaning by water . also esp inlet & outlet duct ash deposited in the first & last hopper respectively are to be evacuated from beneath of the esp hoppers . the ash has to be disposed within 2km premises inside the plant . the disposal location shall be defined by controlling officer , fixing / repairing & realignment of collecting plates at suspension point and sock bar portion of esp fields as per requirement . , gap adjustment of all plates . through checking of collecting plates ( top to bottom ) and straightening of all the collecting plates of 28 nos . of esp fields . gap adjustment of all the plates ( between the collecting plates ) of all the esp fields . inspection and replacement of electrodes ( 1st , 2nd & 3rd fields having multipeaks and 4th , 5th , 6th & 7th fields having spring wires ) etc . field alignment . , crm system . checking and rectification of collecting rapping system of all the esp fields thoroughly . , erm system . checking and rectification of emitting rapping system of all the esp fields thoroughly . , shaft insulator system . replacement / repair & cleaning of shaft insulator and its heater . area like boilerdrum floor vent flush box and drain related pipe etc . ( running meter ) . , support insulator system . replacement / repair & cleaning of support insulator and its heater . , hopper heater . replacement / repair & cleaning of hopper heater . , gd screen . replacement / repair & alignment of inlet gd screen ( three stages ) . , anvil pads . replacement / re-fitting of anvil plate of the all the collecting plates of esp fields , if required after checking . , crm & erm systems . replacement / repair & alignment of rapping shafts , bearings , pin wheel , hammer assembly of all the rapping mechanism ( collecting & emitting ) , if required after checking for all esp fields ( 28 nos ) . , shock bar system . repair of shock bar and also the alignment of the shock bar . , baffle plates . refitting / repair of baffle plates of all the esp hoppers ( 56 nos ) thoroughly . , crm & erm gear boxes . lubrication of collecting and emitting rapping motor and its gearbox . , esp fields . after completion of aforesaid jobs , meggaring of each field to be carried out until it comes to its desired value . , tr sets . the entire transformer # rectifier units should be checked thoroughly and cleaned body only including checking of oil level and changing of silica gel depending upon the condition then . , hv safety bkrs . alignments of all the safety breakers , 28nos . ( 1 for each field ) should be checked & rectified . these must also be cleaned . , esp mcc panels . all the mcc panels ( 28nos . ) of esp fields & its incomer breakers ( 12 nos . ) including 6 . 6 kv / 415v dry type transformers ( three nos . ) to be cleaned & tightness checked . , suspension frame & i-beam . checking & maintenance of collecting & emitting suspension frame and i-beam of a-path & b-path . suspension point of collecting plate and emitting wire also to be checked . , esp manhole doors . inspection and repair of all manhole doors of a-path & b-path . , painting works . painting of all outdoor equipments of esp . furnace wall , roof tubes etc . , esp hopper walls . inspection ( de-metering ) and repair of hopper walls by scaffolding of 1st 02 rows . , guide vane . checking , repair / replacement and strengthening of guide vane of esp inlet duct .