OT21/25-26

Labour charges to close the Primary Crusher hopper bottom area at conveyor tail end by using channel, angles, plates etc. for safe working environment and dismantling, normalizing after completion of Primary Crusher spares replacement work.

Labour charges for dismantling the Primary Crusher floor side sheet, support angle etc. according to the erection convenience and erect the structural arrangement for fitting the 2 Nos., 25Tcapacity chain block for erection of new Primary Crusher spares and for unloading the released Primary Crusher spares to the ground floor and normalizing it after completion in of erection.

Labour charges for dismantling the Primary Crusher side, top,end cover plate, refuse chute, chain covers etc. leading, lifting & lowering to the Primary Crusher floor etc

Labour charges for removal of drive chain and gear box after decoupling the motor and fluid coupling.

Labour charges for removal of screen plate/ lifting shelf/deflector plates after cutting and removal of fasteners, leading & lowering and stacking in the ground floor. (Lorry & Crane will be supplied by Board at free of cost)

Labour charges for erection of screen plate/ lifting shelf/deflector plates in Primary Crusher using fasteners M24 bolts of various sizes including leading, lifting from ground floor and preparing, positioning with the rail beam and tightening

Labour charges for removal of support wheel from the bed and dismantling its assembly cleaning and storing useful spares in the section store

Labour charges for fitting the support wheel assembly on the bed, including lifting, measuring, checking, preparing and assembling spares, positioning on bed, checking its alignment .

Labour charges for supporting the spider cone 2 Nos. and dismantling 18 Nos. rail beams, lowering and stacking the rail beam in the ground floor dismantling feed end spider, discharge end spider and lowering the discharge end spider cone into the ground floor including fabrication of necessary supports required.(Lorry will be supplied by Board at free of cost)

Labour charges for checking, measuring, cleaning and surface preparation of 2 Nos. spider cones. Lifting 18 Nos. rail beams to the Primary Crusher floor one by one. (Lorry and Crane will be supplied by Board at free of cost).

Labour charges for lifting the discharge end spider cone/ feed end spider cone from the ground floor to the Primary Crusher floor, moving near to the Primary Crusher bed area with necessary supports etc. including the hire charges for higher capacity crane, special tools and plants etc

Labour charges for lifting, positioning discharge end spider cone/feed end spider cone on the support wheel and providing temporary supports to the spider cones, lifting, positioning, alignment checking and assembling the rail beams with the spider cones using M36x180mm bolts and nuts one by one. After normalizing removing the temporary support and checking the float etc .

Labour charges for assembling the sprocket wheel on gearbox output shaft, new fluid coupling on gearbox input shaft. Lifting and positioning on the bed, checking and carrying out alignment with motor and Primary Crusher by adding or removing shims, cleaning and lifting the drive chain and positioning on the drive and driven sprocket and to link with the gear box. (Lorry and Crane will be spared by Board at free of cost).

Labour charges for checking and correcting the crusher alignment, balancing, float adjusting etc. and to provide 2 Nos. guide roller to the Primary Crusher tiers

Labour charges for fitting the side, top & end cover plates, chaincovers, refuse chute etc. including lifting from ground floor, reconditioning the damaged MS plates, positioning, fitting the cover plate using new bolts and nuts etc. providing gasket around the crusher ends

Labour charges for inspecting and aligning the support wheel position and contact surface of support wheel with spider cone tire by adjusting the bed bolts of support wheels and lock bolts. Conducting trail run of PCR .

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