Whilst grinding off a bolt head I have managed to cut (melt) two compressed airlines (Air Brake SAE J844 Type A 1/4" Weathered NT 10004) that look as if they go to the seat and the foghorn.
1) How do I fix it!
2) Would that affect the actual airbrakes (i.e. is the bus driveable at the moment?)
Thanks as ever for your help!