Basic Inspection & Servicing
Baseline inspection before service entry. Routine inspection to ensure fleet availability and detect early signs of wear or degradation.
30 days
12500 km
SCOPE
- Visual inspection of key systems
- Fluid and consumable replenishment
- Functional checks
- Minor adjustments
Inspection Maintenance Level 1
Periodic inspection focused on safety. reliability and condition monitoring.
3.6 months
45000 km
SCOPE
- Brake inspection
- Door system checks
- HVAC functional verification
- Safety equipment review
Annual Detailed Inspection
Comprehensive inspection to assess the condition of main vehicle systems and identify corrective actions.
1 year
150000 km
SCOPE
- Mechanical inspection
- Electrical testing
- Diagnostic data review
- Structural condition assessment
Inspection Maintenance Level 2
Intermediate inspection. Renewal of gearbox lubricant to maintain transmission performance and reliability.
1.2 years
180000 km
SCOPE
- Oil replacement
- Leak inspection
- Gearbox condition check
Biennial Detailed Inspection
Extended inspection covering critical systems and wear-related components.
2 years
300000 km
SCOPE
- Bogie inspection
- Brake system checks
- Electrical cabinets inspection
- Structural examination
Inspection Maintenance Level 3
Advanced inspection with partial dismantling.
Preventive intervention to maintain traction equipment and pneumatic system performance.
2.4 years
360000 km
SCOPE
- Traction motor lubrication
- Compressor filter replacement
- Pneumatic system inspection
- Functional testing
Inspection Maintenance Level 4
Overhaul of wheel guidance and underframe running systems to ensure safe operation.
4.8 years
720000 km
SCOPE
- Guidance system overhaul
- Differential axle overhaul
- Trailer axle overhaul
8-Year Overhaul
Life-extension overhaul of key electrical and pneumatic systems.
8 years
1200000 km
SCOPE
- Main transformer overhaul
- Wheel flange cleaning systems
- Air dryer overhaul
- Compressor overhaul
- Cab auxiliary panel overhaul
- Safety valve inspection and renewal
Wheelset Overhaul
Restoration of wheelset condition and running characteristics.
8 years
1200000 km
SCOPE
- Wheel reprofiling
- Axle inspection
- Bearing inspection/replacement
- NDT examinations
Major Revision. Complete Bogie Overhaul
Full overhaul restoring bogie performance. safety and structural integrity.
9.6 years
1440000 km
SCOPE
- Bogie frame overhaul
- Pivot and centre plate overhaul
- Suspension components
- Sanding system
- Traction motor overhaul
- Pneumatic and electrical installations
- ACR equipment fans
- AC circuit breaker
10-Year Overhaul
Major overhaul of braking and current collection equipment.
10 years
1500000 km
SCOPE
- Brake equipment overhaul
- Disconnector overhaul
- Pantograph overhaul
- Intercommunication equipment
- Automatic couplers
- Semi-permanent couplers
12-Year Overhaul
Renewal of onboard auxiliary systems affecting safety. comfort and operation.
12 years
1800000 km
SCOPE
- Automatic pantograph lowering system
- WC module overhaul
- Rear-view mirrors
- Emergency converters
- Inverter overhaul
- Saloon and cab HVAC equipment
- Battery charger overhaul
15-Year Overhaul
Mid-Life Overhaul. Refurbishment of passenger and driver environment systems.Interior & Cab Refurbishment.
15 years
2250000 km
SCOPE
- PRM ramp overhaul
- Driver desk refurbishment
- Interior doors
- Cab exterior doors
- Steps overhaul
- Saloon and cab convector radiators
Second Wheelset Overhaul
Second lifecycle overhaul to restore wheelset condition and extend asset life.
16 years
2400000 km
SCOPE
- Complete wheelset overhaul
- Bearing replacement
- Axle integrity inspection
Second Major Revision
Overhaul of auxiliary support systems to maintain long-term reliability.
19.2 years
2880000 km
SCOPE
- Flange lubrication systems
- ACR equipment fans
- Auxiliary converter ventilation systems
Life Extension Overhaul
Major Refurbishment. Overhaul and calibration of direct brake control equipment.
20 years
3000000 km
SCOPE
- Brake control panel overhaul
- Functional testing
- Calibration and verification
