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).
Instructions for adjusting brake system components, including serrated adjustments, levers, and pedal movement.
| Identifier | ExFiles\Box 178\1\ img087 | |
| Date | 1st July 1924 | |
| - 6 - obtained, will hold it in that position. Another function of this serrated adjustment is that with careful use it should be impossible to adjust the plates so that there is no clearance and they drag. In turning the nut the teeth of the serrations have to ride over each other; the minimum clearance will therefore be approx. equal to the depth of the serration. This does not allow for flexibility and it is possible, by using force, to spring the serrations over each other with the result that no clearance is left between the plates and drum. Each notch of adjustment takes up .0025" clearance. The setting should be such that it allows the foot pedal to move down .2 to .25" measured at its top and horizontally in the direction of the dash. (see adjustment sheet). As an additional check, it should be possible to insert a .025" feeler between the square sides of the cam. Levers and equalisers. All levers and equalisers must work freely and be set in the correct angular positions shewn on drawing G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 72580. The jaws on the rods and ropes must be quite free on their levers. Levers, ropes and rods must not be allowed to foul anything. The total pedal movement for correct adjustment of the brakes and servo is 1.35" measured at the top of the pedal horizontally in the direction of the dash but correct pedal movement is in no way an indication that the front brakes are correctly adjusted. Hs.{Lord Ernest Hives - Chair} | ||