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).
Summary of hydraulic system complaints over a six-month period, categorized by issue type and model.
| Identifier | ExFiles\Box 130\1\ scan0230 | |
| Date | 14th May 1935 guessed | |
| - 7 - TOTAL HYDRAULIC COMPLAINTS. 25 HP. PH.II. TOTAL. GRAND TOTAL. REMARKS. March Quarter. C.C. 31 22 53) C.P. 2 6 8) 61 Previous Quarter. C.C. 24 23 47) C.P. 4 6 10) 57 Six Months. 61 57 118 118 HYDRAULIC KNOCKS. March Quarter. C.C. 14 5 19) C.P. 2 3 5) 24 Knocks on existing dampers are being satisfactorily dealt with by modifying the replenishing ball valves and fitting oil feeds to intermediate levers as per Depot Sheet Hd.{Mr Hayward/Mr Huddy}225. The split piston type now being produced appears satisfactory in service. Previous Quarter. C.C. 9 7 16) C.P. 2 3 5) 21 Six Months. 27 18 45 45 HYDRAULIC LEAKS. March Quarter. C.C. 11 5 16) C.P. - 2 2) 18 Previous Quarter. C.C. 3 5 8) C.P. 1 2 3) 11 Six Months. 15 14 29 29 HYDRAULICS LOOSE ON FRAME. March Quarter. C.C. 3 - 3) C.P. - - -) 3 Larger diameter bolts now being fitted on Production to overcome this complaint. Previous Quarter. C.C. 9 - 9) C.P. 1 - 1) 10 Six Months. 13 - 13 13 | ||