bids are invited for contract for outsourcing of mechanical maintenance job of ‘’1600 kw service shaft winder & banwas ventilation fan’’ in khetri copper mines for period of 01 year; 1 905499571 ss winder -daily inspection of service shaft winder & its brake & cylinders, clutching systems, gear coupling, oil cooler, pneumatic systems, mg set, depth indicator & need full maintenance as required. 2 905499572 ss winder -daily inspection of service shaft winding ropes & cages, csgs, sheave pulleys & structure, shaft structures , inspection & lubrication of caps & sliding gate along of pit bottom buffer assy, & need full maintenance as required. 3 905499573 ss winder - greasing of service shaft winder brake pins & adjustment, cleaning of brake path, checking of rope clamps with drum, depth indicator assembly, & need full maintenance as required (weekly). 4 905499574 ss winder -measurement of rope pitch & diameter, examination of rope, cages & head gear pulley structure with dog catchers & braking timber & need full maintenance as required (monthly). 5 905499575 ss winder -quarterly cleaning of oil cooler, greasing of rail line, examination & greasing of drum shaft coupling & clutching assy. measurement of sheave pulley bearing clearance & its greasing & needful maintenance 6 905499576 ss winder -quarterly replacement of cage guide shoes. 7 905499577 ss winder -recapping of rope (half yearly). 8 905499578 ss winder -inspection of csg with dismantling, proper cleaning & measurement of pins and fitting (half yearly). 9 905499579 ss winder -cleaning of exhaust fan duct, inspection of mg set bearing & fitting (half yearly). 10 905499580 ss winder -mould impression of sheave pulley (half yearly). 11 905499581 ss winder -yearly shut down jobs (examination of brake pins & replacement if required, exhaust fan cleaning & maintenance, examination of gear coupling & shaft bearings, oil coolers, sheave pulley structures with fasteners etc.) & do need full maintenance 12 905499582 ss winder -51 mm diam rope replacement includes recapping of rope, inspection of csg & measurement of pins. inspection of mg set bearing & fitting. 13 905499583 ss winder -replacement of landing caps of the shaft structure. 14 905499584 ss winder - repairing of rail line clits or pipe line clamps or beam support etc. by welding 15 905499585 ss winder - replacement of rail line clits or pipe line clamps or beam support etc. 16 905499586 ss winder - repairing of punctured 12 & 8 pipe line inside shaft by welding & patch work. 17 905499587 ss winder - replacement of damaged 12 & 8 pipe line inside shaft ( length up to 1.5mtr) 18 905499588 ss winder - repairing of punctured 4 & 2 pipe line inside shaft by welding & patch work. 19 905499589 ss winder - replacement of punctured 4 & 2 pipe line inside shaft ( length up to 2mtr) 20 905499590 ss winder - erection, fabrication & commissioning of platform support beam or dash beam along with side support etc. 21 905499591 ss winder - erection, fabrication & commissioning of platform & wire meshing of shaft structure. 22 905499592 ss winder - erection, fabrication & commissioning of wire meshing (length 3mtrx3mtr) & its support of shaft structure. 23 905499593 ss winder - erection, fabrication & commissioning of ladder (length up to 7 mtr) & its support of shaft structure. 24 905499594 banwas ventilation fan:- daily checking of banwas ventilation fan alignment along with fitted coupling & bearing, pulley, belts etc, greasing & need full maintenance as required. 25 905499595 banwas ventilation fan:-checking and greasing of all points (bearings) of banwas ventilation fan along with alignment of motor, shaft, belts, etc. inside examination of fix blade & moving blades of banwas v fan and need full maintenance (weekly ). 26 905499596 banwas ventilation fan:-inspection of clearance of all fitted bearings along with coupling & fitted pulleys 9054995along with belt & inspection of all moving & fixed blade and do the needfull maintenance (monthly). 27 905499597 banwas ventilation fan -erection, fabrication & commissioning of fixed blade of banwas v fan. 28 905499598 banwas ventilation fan-examination & replacement of bearing & sleeve with proper alignment & greasing. 29 905499599 banwas ventilation fan-examination & replacement of resilient coupling spring with proper alignment & greasing. 30 905499600 banwas ventilation fan-erection, fabrication & commissioning of duct (up to 2 sq mtr area ) & support of banwas v fan. 31 905499608 ss winder - compounding of winding rope (half yearly). 32 33 905499609 ss winder - replacement of shaft gate at landing levels with new one. 34 35 905499610 ss winder - repairing of shaft gate at landing levels.