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).
Communication regarding the adjustment of hydraulic dampers and how loads can be varied using different washers.
| Identifier | ExFiles\Box 55\4\ Scan387 | |
| Date | 21th November 1929 | |
| 1235 Ps. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}6/AD21.11.29. ADJUSTMENT OF HYDRAULIC DAMPERS. A Depot Sheet is being circulated on this subject. In order that you can tackle the gentleman who has complained however, we are sending you a little advanced information. You can reduce the shock absorber load by increasing the washer under the valve caps. We are fitting shock absorbers that are now being produced with valve caps which will enable anybody adjusting the loads to work to the attached chart. The first cars turned out however, cannot be adjusted to this chart because they have different valve caps. It will be necessary to remove them and try different washers X under the valve caps until, you get the loads you require. We only send you the chart to give you a rough indication of how the loads can be varied by washers. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||