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).
List of isolated points for Unit D, with remarks on various components regarding lubrication and standardisation.
| Identifier | ExFiles\Box 26\5\ Scan142 | |
| Date | 17th May 1928 guessed | |
| (3) UNIT (D) - ISOLATED POINTS. No. | Description. | Remarks. 13. | Clutch operating trunnion. | Has been made more oil retaining & is intended to be lubricated every 3 months at the same time as the clutch shaft is filled with oil. 14. | Starter epicyclic. | [X] Very oil retaining, very infrequent lubrication needed. Not altered from standard. 18. | Fan bracket. | Unaltered from standard, very infrequent lubrication needed. 23. | Engine front support bracket. | The only point not quite settled; may try different material; very little movement. 31. | Sarter motor. | [X] Very infrequent lubrication needed, not altered from standard. [X] means that the slight amount of work required is dealt with by an instruction, a drawing we think not being needed. | ||