MTPS I Mill Plant IV Complete overhauling of gearbox Mechanical face seal assembly replacing the worn out bulged insulation cover plate assembly scrapper assembly and worn out flexi coupling etc

Amount

a) Draining of Mill gearbox oil completely, cleaning the gearbox internals like worm shafts and worms wheel. After inspection filling the gearbox with new/old oil including devolution of old oil to stores etc, (Department vehicle will be provided for drawl of oil at free of cost. b) Charges for cleaning the gearbox internals like worm shaft and worm wheel. Draining the cooling water from cooling coil, cleaning and inspection of worm wheel teeth, cleaning the cooling coil and reconditioning the coil .Arresting the leakages in the water line, assembling back the cooling coil covers, filling the gearbox oil up to normal level.

Charges for providing wedges between lower skirt and Mill insulation cover plate firmly, removal of gearbox bottom cover flange bolts, lowering the thrust bearing and pump housing after supporting lower radial bearing housing. Lowering the thrust bearings and reassembling of all the above parts, providing SS shims at the bottom cover flange. Blue matching the worm shaft and worm wheel engagement till we get 20 to 50% pattern by trial method releasing/ providing thin SS shim at the bottom cover flange and to get proper running clearance and centering of engagement.

Charges for dismantling and removing worn out thrust bearing of Mill vertical shaft by gas heating the racer, cleaning the bearing seating area in the vertical shaft and assembling back new thrust bearing after heating the racer in oil bath.(If necessary)( any two mills from 4A to 4F)

Charges for Renewal of thrust bearing adopter by oil heating and using necessary fixture for assembling the adopter in correct position after positioning the shims below the worm gear hub lock nut. Removing the thrust bearing adopter (worn out) and assembling the new adopter by heating (If necessary)( any two mills from 4A to 4F)

Charges for Dismantling of upper skirt assembly, lower skirt assembly, Mechanical face seal assembly, dust guard and blue matching of seal runner, renewal of seal( bronze), air seal, dismantling of Mill bottom cover, upper bearing housing cover, oil seals etc., Complete overhauling, assembling back the lower skirt assembly, scrapper assembly and arresting the oil leakages in the return line and also spillage’s at the rear side of gearbox to prevent Mill fire including cleaning and tapping the threaded holes.

Charges for dismantling the triangular liners, cutting the bulged Mill bottom plate(insulation cover plate), applying refractory cement at the Mill bottom plate 1 set by providing bolts and welding in Mills (any three mills from 4A to 4F)

Charges for dismantling the radial bearing after removing the oil pump hub and oil pump bushingand reassembling the new radial bearing in the new/old radial bearing housing and assembling the new/old pump hub and bushing (If necessary) any two mills from 4A to 4F)

Charges for changing worn out scraper pin, bush, pin cover, re conditioning of scrapper, cleaning of under bowl, checking of clearance, inspection and welding of wheels support lugs, wall side liners etc in mill under bowl.

Decouble the flexiable coupling and assembling Charges for dismantling the existing flexi able coupling center piece from the motor and worm shaft ends. If any problem created in the mill motor side for inspection purpose and trail run of mill motor and vibration checking in flexible coupling decouple position after completion of work and assembling the same & trail run etc.

SARADHA ENGINEERING CONTRACTOR