6. System of maintenance Workshops (50 +) Overhaul Locomotive sheds(30+) Routine maintenance Coaching depots(75+) Passenger carrying coaches Wagon Depots(70+) Freight wagons EMU Car sheds(15/20) Elec Multiple Units Production Units(6) Dsl, Elec., coaches
7. Maintenance schedules In workshops Periodic Over Haul(POH) Dsl / Elec locos once in 6 yrs. Coaches 12, 18, 24 mnths Wagons 4.5/6 yrs Elec Multiple Units 18mnths, 24 mnths
8. Maintenance schedules In Sheds – routine maintenance Trip schedule – every trip 10, 30, 90, 180, 360 For Dsl / Elec locos. Coaches – km based and type of service –pasenger, Mail express, Spl type-high speed. EMUs - km/link based