From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Technical report on a faulty dynamo, noting a customer's incorrect fuse replacement.
| Identifier | ExFiles\Box 70\3\ scan0249 | |
| Date | 1st September 1926 | |
| Contd. -2- EFC5/T1.9.26. from the dynamo th the cutout which might perhaps be incorporated with the new rigid cutout contact point support. We ourselves remember one previous case of poor connection at this point. For the time being, therefore, it is a connection which should be carefully watched on production. We return the parts in a condition as sent, having made inspection only. As regards the dynamo this needs the commutator resoldering and the machine generally cleaning. At present the carbon brush dust has made a partial earth on the machine which of course should be cleared. It is clear that the dynamo must have been running at high voltage, current and temperature, or otherwise, running in normal circumstances, the machine is O.K. It may have been that some of the damage has taken place after replacement of the field fuse with a bit of tinned copper wire by the customer, though as we say, we think there was the initial fault. We think the customer should be made to feel that his subsequent course in the matter, particularly in the fitting of a piece of tinned copper wire in place of the field fuse, contrary to recommendation in the Instruction Book, would not improve his prospect of free replacement. EFC. | ||