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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).
Adjustments for brake system components including rods, levers, ropes, and servo efficiency.

Identifier  ExFiles\Box 5\3\  03-page169
Date  1st July 1925
  
R.R. Form No. 1761 (5M. Bks. 12.33)

EXPERIMENTAL REPORT. -2- Expt. No. REHs/Hal/LG34.7.25.

ANGULAR POSITION OF RODS AND LEVERS.

The angular positions of the rods and levers in the system should be carefully adjusted to conform with the setting given on the attached sketch.

LENGTH OF FRONT BRAKE ROPES.

There should be no slack in the front brake ropes. A good setting is to arrange the length so that lever G.52474 is just clear of its stop (not more than .062").

FRICTION ON SWINGING LEVER.

The swinging lever supporting balance lever G.52160 should have the friction at its point so adjusted that it requires a load of 1 lbs. at its extremity to promote movement.

SERVO EFFICIENCY.

As in the 40/50 HP., it is important that the efficiency of the servo should lie between pre-determined limits. The method of testing the servo and the required limits are given on the attached print. Also a brake distribution chart for various servo efficiencies.

NIGHTINGALE & CROXLEY
-------------------------

Ha/Ra.
  
  


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