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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).
Brake adjustments and pedal modifications for Peregrine & Bensport models.

Identifier  ExFiles\Box 1\10\  B001_X106 TO X 110-page034
Date  13th April 1933
  
X/06

By.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}7/MA.13.4.33.

BRAKES - PEREGRINE & BENSPORT.

X.55-3

We find that the 21° of rear brake adjustment shown on RR.sch.292 allows a wear of the linings at the shoe centre of .059. Whereas 5 notches of 6° each allows for .085 wear of the front brakes. We have approximately 50:50 braking on both these cars.

Will you therefor please arrange for the rear adjustment to be increased 1.44 times.

The discrepancy was brought home to us on Bensport in France all the rear adjustment being used up the front having a notch to spare.

Brake Pedal Peregrine.

A further modification we have carried out is to raise the pedal one notch on the adjustable stem the pedal then being 6.125 instead of 5.5 from the dashboard. We can then run longer between adjustments without the pedal reaching the board.

Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}
  
  


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