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).
Quarterly report summarizing hydraulic system faults, including knocks, leaks, frame looseness, and control failures, with remarks on causes and fixes.
| Identifier | ExFiles\Box 130\1\ scan0386 | |
| Date | 31th March 1936 guessed | |
| - 6 - HYDRAULIC KNOCKS. 25 HP. PH.II. TOT. GRAND TOTAL. REMARKS. March Quarter. C.C. 40 23 63) C.P. 11 4 15) 78 A number of these knocksare from damper connections or loose bolts. Remainder are internal knocks from pistons and bearing pads. Previous Quarter. C.C. 32 19 51) C.P. 5 5 10) 61 Six Months. 88 51 139 139. HYDRAULIC LEAKS. March Quarter. C.C. 3 - 3) C.P. 2 - 2) 5 Previous Quarter. C.C. 5 3 8) C.P. 1 - 1) 9 Six Months. 11 3 14 14 HYDRAULICS LOOSE ON FRAME. March Quarter. C.C. 7 - 7) C.P. 3 - 3) 10 Larger diameter bolts now being fitted on Productionto overcome this complaint. Previous Quarter. C.C. 14 - 14) C.P. 1 - 1) 15 Six Months. 25 - 25 25 HYDRAULICS - FAILURE OF CONTROL. March Quarter. C.C. 6 1 7) C.P. 3 2 5) 12 These are rectified by cleansing the system generally and curing minor oil leaks. Previous Quarter. C.C. 4 1 5) C.P. 2 1 3) 8 Six Months. 15 5 20 20. | ||