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).
Insufficient lubrication of brake counter shafts on a Rippons Demonstration car.
| Identifier | ExFiles\Box 84\2\ scan0115 | |
| Date | 8th August 1934 | |
| o Hs.{Lord Ernest Hives - Chair} from Mx.{John H Maddocks - Chief Proving Officer} X206 Mx{John H Maddocks - Chief Proving Officer}16/TS.8.34. Re.B.25.AE - Rippons Demonstration. We believe the trouble experienced with brakes on this car is due to the shafts being insufficiently lubricated. initially The importance of filling the brake counter shafts with oil when initially erecting was not fully appreciated on thefirstfew cars that were built - particularly was this the case on the first 15 Chassis. It will be remembered that they were returned to the Works from the Coachbuilders just prior to the Show for a number of modifications to be carried out, which included the fitting of new brake counter shafts with wing nut adjustment. The construction of the rear brake counter shafts is such that unless the shafts are thoroughly primed when being built up, the small amounts that normally pass the bijur valve do not serve to lubricate the bearing at the far end of the shaft. Now that the foregoing point is fully appreciated by everyone, we do not expect that we shall have trouble with these shafts on the Bentley Car. Our reason for this latter statement being that the scheme is similar to that on the 20/25HP and Phantom II. Mx{John H Maddocks - Chief Proving Officer} | ||