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 detailing points to be noted in the production of R.R.S. motors.
| Identifier | ExFiles\Box 35\4\ scan 116 | |
| Date | 25th March 1922 | |
| RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 X. 4384. ROLLS-ROYCE LIMITED. INSTRUCTIONS. March 25th 1922 To E.F.C. Order No. P.B. 37 Customer's No. X 3534 Points to be Noted in the Production of R.R.S. Motors. 1) Care should be taken in making the 'brushholders so as to give a minimum brush clearance. 2) Care should be taken in all work connected with the fixing of the position of the brushes; a difference of two or three degrees from the correct position making an appreciable difference in the performance of a motor. 3) It should be seen that the spring does not catch against the side of the slot in the brush-holder thus reducing the force applied to the brush. 4) Before running a motor, the brushes should be bedded in to at least 80% of their contact surface. Signed Contd. This Sheet must be filed on completion of the work. | ||