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).
Troubleshooting and summary page for brush gear maintenance and adjustment.
| Identifier | ExFiles\Box 50\5\ Scan211 | |
| Date | 23th August 1923 guessed | |
| -2- Contd. improved by scraping and running on load until the necessary area of contact is secured. (f) CONTROL BRUSH POSITION. If satisfied as regards (a) (b) (d) and (e) and if the output is still excessive, the control brush must be advanced, if such advance is possible, to secure the necessary reduction, after which re-bedding of this brush may be required. (g) In the unlikely event of the machine not being corrected by these means, it should be returned to the Works for investigation. (2) In the case of bad commutation and brush sparking with consequent overheating, and undue wear, particularly of the positive brush, it will be in some cases desirable to start with one or more new brushes. In a general way the same instructions as given above apply, to this case, but rather more initial bedding may be necessary, e.g. it may be necessary to use sand paper. SUMMARY:- See that brush gear is O.K. as regards :- (1) Alignment. (2) Fixing. (3) Brush Spacing. (4) Brush freedom. (5) Brush fit. (6) Spring pressure. ((7)) Bedding. (8) Control brush position (for correct output). EFC. | ||