Pit jack
The pit jack is located near the pit wheel lathe. It is intended to compensate for the sagging of the suspensions and/or the reduction in the diameter of the wheels (tire wear and reprofiling operations) after the machining operations of the pit wheel lathe. This reprofiling operation makes it possible to keep an identical level between the vehicle floor and the platforms in town.
• Version - 4 outside jacks:
- To raise the vehicle body only a few centimeters.
• Version - 4 outside jacks + 2 inside jacks:
- The 4 outside jacks to lift the vehicle body.
- The 2 inside jacks: to lift one end of the bogie + the vehicle body.
• Version - 4 outside jacks + 4 inside jacks
- The 4 outside jacks to lift the vehicle body.
- The 4 inside jacks: to lift a bogie + the vehicle body.
Please refer to the technical chart for more details.
Technical characteristics
| Reference | VCC4EXT | VCC2INT or VCC4INT |
| Lifting type | Lifting the vehicle body | Lifting under bogie |
| Capacity |
4,5 t per jack or 5 t per jack |
4,5 t per jack ou 5 t per jack |
| Jack head diameter | Ø 70 mm | Ø 50 mm |
| Hydraulic stroke | 230 mm | 150 mm |
| Mecanical stroke | 70 mm | 30 mm |
| Longitudinal movement | +/- 100 mm | +/- 100 mm |
| Transverse movement | 0 mm | +/- 20 mm |
| Tension | 400V/50Hz TRI – 4 kW | 400V/50Hz TRI – 4 kW |
| Control panel |
Power / control box Wired button box with Up, Down and Emergency stop push buttons. 3m cable |
Power / control box Wired button box with Up, Down and Emergency stop push buttons. 3m cable |
| Lifting mode | 2 jacks and 4 jacks | 2 jacks and 4 jacks |
| Safety |
Safety wedge when the rod is extended Safety valve on cylinder body Pressure limiter Emergency stop |
Safety wedge when the rod is extended Safety valve on cylinder body Pressure limiter Emergency stop |
| Safety mode | Emergency descent in the event of a power failure | Emergency descent in the event of a power failure |
| Others |
Rigid pipes between the hydraulic unit and each cylinder. Hoses close to cylinders |
Rigid pipes between the hydraulic unit and each jack. Hoses close to cylinders |