Fault analysis chart for various vehicle components from January to June 1939, showing the frequency of different issues.
| Identifier | ExFiles\Box 131\3\ scan0062 | |
| Date | 1st January 1939 | |
| 1939 JAN FEB MARCH APRIL MAY JUNE HYDRAULIC SHOCK DAMPERS AVERAGE MILEAGE JAN B 41000 D 36900 FEB B 26800 A - OIL LEAK B - INTERNAL KNOCK C - ADJUST RIDE CONTROL D - CONNECTING LINKS SLACK. E - TIGHT PISTONS Chart Annotations: Jan: D, B, P 177, P 171 Feb: B, D Mar: C, A, D, B GEAR BOX NOISY A COMING OUT OF ENGAGEMENT. B OIL LEAK. C STRAINED SELECTOR GATE D WORN BEARINGS E GEARS NOISY SEIZED Chart Annotations: Jan: B, C Feb: E, W 282, W 314 DYNAMO TROUBLES A OILED UP COMMUTATOR B FAULTY REGULATOR C BRUSH STICKING D DRIVE RATTLE Chart Annotations: Jan: D, B, C Feb: C, A, B, W 317 Mar: 7, RACES NOISY, N 57, B, W 317, A, W 322 ROAD WHEEL HUBS RUBBING AVERAGE MILEAGE JAN A 3500 B 10000 FEB B 26500 A - ADJUST END FLOAT B - FAULTY RACES Chart Annotations: Jan: A, B, P 161 Feb: B CLOCKS FAULTY AVERAGE MILEAGE JAN 16000 FEB 14800 PETROL GAUGE FAULTY T - TANK UNIT G - GAUGE Chart Annotations: Feb: T Mar: T, G, P 174, W 284, W 301 GWH. {George W. Hancock - Head Chateauroux} 7 | ||
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).