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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).
Instructions to modify the armature and fit a new bush to the starter motor on 9-EX.

Identifier  ExFiles\Box 64\2\  scan0207
Date  9th November 1928
  
x76 25B
To RHC.{R. H. Coverley - Production Engineer}
C. Hs{Lord Ernest Hives - Chair}/Mr Hancock.
C. EFC.
BY/RD6/ML.9.11.28.

STARTER MOTOR ON 9-EX.

Will you please modify the armature in the above Motor to sketch hereunder and produce and fit a new bush to the comm: end bracket also to sketch hereunder. These parts will then provide a dash pot action to cushion the outward blow, we have allowed one thou: clearance between the parts therefore care should be taken that they run true.

The stroke of the armature is .700 and this will come into action when it has .425 still to go on the out of gear movement.

Extra release holes can be put round the bush if found necessary.

BY/RD.

(NO SKETCH).
  
  


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