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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).
Servo jaggering issue on the 20/25 HP chassis, referencing clearances and previous instructions.

Identifier  ExFiles\Box 105\4\  scan0123
Date  19th October 1933
  
Hs.{Lord Ernest Hives - Chair} C. E.{Mr Elliott - Chief Engineer}
GRY{Shadwell Grylls} x 370.
EP{G. Eric Platford - Chief Quality Engineer}2/MH.{M. Huckerby}19.10.33

re 20/25 HP SERVO ADJUSTMENT

With reference to Depot Sheet No.250, and referring to Hs{Lord Ernest Hives - Chair}/Gry{Shadwell Grylls}4/KT22.9.33, we find that since the fixing of the washer referred to on chassis going through test our old trouble of jaggering the servo has occurred, and it has been pointed out that the only way to cure this has been to remove the washer. We are, however, making sure that the clearance referred to is not excessive.

We should be glad if you could arrange to again go into this matter and give us a minimum and maximum clearance between the two Star Springs which will ensure us not suffering from the above trouble.

We are afraid that if the instructions as referred to in the Depot Sheet are carried out it is possible that we shall have servo jaggering complaints.

EP{G. Eric Platford - Chief Quality Engineer}

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