Servo Single Line System
3500 & 3500S manual models with single line braking systeem
| Major repair kit for servo unit - 607135 for 3500 cars up to 42504284, 42600055, 42800113 |
| Major repair kit for servo unit - 607135 for 3500 cars from 42504285, 42600056, 42800114 & 3500S manual |
