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).
Rapid front brake wear on a 25/30 HP model, with a diagram illustrating a worn spindle groove.
| Identifier | ExFiles\Box 108\3\ scan0111 | |
| Date | 1st March 1938 | |
| To. Rm.{William Robotham - Chief Engineer} c.c. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} (crossed out) 600c CHATEAUROUX S/ . 1.3.38. 26.G.VI.- 25/30 HP. BRAKES. You will note from the Daily Reports that the front brakes are wearing considerably more rapidly than the rears. We note in this connection that there is no pull-off spring fitted to the bottom arm T.2. of the servo T lever, as shown in the diagram of Wraith brake system and also mentioned by AFM.{Anthony F. Martindale} to the writer when in Derby. We have received and replied to your telegram re. servo star springs. We give herewith a sketch of the groove which has worn in the spindle. You will note that the judders have disappeared so we have not changed the discs and cams. ---------------- Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} Frank Walker. DIAGRAM LABELS: NUT SERRATED LOCKING RING DISTANCE PIECE OUTER STARSPRINGS WASHER INNER STARSPRINGS THRUST RACE GROOVE WORN BY INNER STARSPRINGS. | ||