Casas: brake lock and brake calipers
Busy as we were with the Monotral, we had overlooked the fact that the other vehicles also require care. In a pre-MoT brake check, the rear axle seal and calipers were judged to be completely worn out and in need of replacement. In the photos, courtesy of Sergio, disassembly of the wheel hub with the reduction gears of the hub, repair made in Ballestas Egara (fortunately, because I would not know how to reassemble so many gears in their place).
Once the repair is complete, we successfully passed theMoT for another two years.