ECHP-I- Replacement of wornout crusher rotor shaft flange coupling by new one and enlarge the bore size to suit our requirement in Crusher C at Secondary Crusher House-I

Replacement of worn out crusher rotor shaft flange coupling

Charges for Replacement of worn-out crusher rotor shaft Flange coupling by new one in Crusher ‘C’ at Secondary Crusher House – I- Includes decoupling the flange coupling fixing bolts and removal of all the 32 No’s crusher drive belt - Removing the rotor assembly from the crusher after removing the top cover, chute crusher liner, and its cover etc., and placed at screen floor - lifting the jack shaft with ‘V’ groove driven pulley after removing the Plummer block covers and placed in the crusher floor in a separate stand- removing the existing worn-out flange coupling in the Jack shaft driven pulley and rotor shaft carefully without damaging the shaft - assembling the new (bore machined) flange coupling after oil bath heating in the Jack shaft driven pulley and rotor shaft - lifting the rotor assembly from the screen floor and positioning the crusher body and refixing the crusher liner and its cover, chute and crusher Top cover- lifting the jack shaft driven pulley from the separate stand, refixing in jack shaft bed and tightening the Plummer block cover bolts- aligning the crusher rotor shaft with respect to Jack shaft, checking the tightness of all the bolts- coupled the jack shaft flange to the crusher rotor flange and fixing of all the 32 No’s ‘V’ belt in its position and the crusher put into service for trial run

Charges for machining of Flange coupling for RM – 54 ring granulator to enlarge the bore size from pilot bore to suit both rotor shaft and jack shaft drive pulley shaft with shrink-fit tolerance and making the key ways to the respective shaft of Crusher C including cost of consumables T&P’s and hire charges for machineries complete.