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).
Continued list of electrical testing procedures for a switch or terminal box.
| Identifier | ExFiles\Box 65\2\ scan0017 | |
| Date | 4th January 1929 guessed | |
| -2- Contd. (1) With S & T switched on, light is obtained from terminals No.5 only. (2) With H S and T switched on, light is obtained from terminals Nos. 4 & 5. (3) With M & B only switched on, light is obtained from terminals Nos.2 & 3. (4) With M, B & C switched on, light is obtained from terminals Nos.1, 2 & 3. (5) With M & C switched on, light is obtained from terminals 1 & 2. (b) Now remove battery positive from terminal No.6 and connect it to terminal No.2. Put loose terminal wire on 1 and ascertain that no light is obtained until the positions M.B.& C., or M & C are made. (c) Connect battery positive to terminal O and loose terminal wire to case. Ascertain that no light is obtained except in the 'off' position. (d) Connect battery positive to centre terminal and loose terminal wire to case. Ascertain that light is obtained in the second and third positions M & B; M.B & C only. (e) Now remove battery positive from centre terminal and connect it to H.{Arthur M. Hanbury - Head Complaints} Then connect battery negative to case. Connect lamp between terminal GL{G. Linnett} and case and ascertain that it lights by operating the press button switch. Next, connect lamp terminals to inspection plug and ascertain that it is lighted by inserting the plug in its socket. EFC. EFC. | ||