I had some little difficulty getting the Square to charge when I first rebuilt her but eventually found that applying 400 grit wet and dry paper to the commutator solved the problem. It was a new armature / electronic regulator / wiring / etc. but clearly, I wasn't getting enough output to get the whole thing going. Since the initial problems, no trouble whatsoever.
36 4G, 37 VH, 53 ex ISDT KHA (project), 54 KH(A), 54 4G Mk IV (project), Healey 1000/4 (project)
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser.