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).
Fault report on a Dynamo RU.95 from Chassis 58-HC, detailing melted solder and brush issues.
| Identifier | ExFiles\Box 70\4\ scan0085 | |
| Date | 2nd February 1928 | |
| X8785do To BY.{R.W. Bailey - Chief Engineer} from EFC. c. Mr. Brock. EFC1/TDO.2.28. DYNAMO RU.95 EX CHASSIS 58-HC. This machine is one of the early type having a control brush angle of 120°. Solder has been melted from the commutator connections for which we think overheating, as a result of the control brush position, was responsible. In addition there were found one or two minor faults but nothing that would be likely to cause melting of the solder. The insulation of the control brush holder was broken down due to carbon dust bridging it. Also the control brushes were sluggish in their holders, while an attempt at rebedding the main brushes appeared to have been made. Machine herewith. to BY.{R.W. Bailey - Chief Engineer} EFC. | ||