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).
Extracted paragraphs from a revised instruction book concerning battery and electrical connections.
Identifier | ExFiles\Box 26\2\ Scan359 | |
Date | 14th May 1930 | |
X7792. EXTRACTED PARAGRAPHS (RELATING MORE DIRECTLY TO BATTERY) FROM THE REVISED AND ABOUT TO BE ADOPTED RE-ARRANGEMENT OF CHAPTER III OF THE ROLLS-ROYCE INSTRUCTION BOOK. Battery and Connections. For detailed instructions concerning the battery as a unit see the battery makers pamphlet inserted at the end of this book. "Care must be taken to secure clean and sound electrical connections of the cable terminals to the battery lugs. To clean these terminals and the battery terminals use paraffin, not abrasives. Afterwards again vaseline thoroughly. To remove corrosion use a solution of ammonium carbonate in the first instance, applying this with a rag. It is of great importance not to attempt to light lamps or operate any part of the electrical system direct from the dynamo, if the battery should be either intentionally or unintentionally disconnected, e.g. by removal of the battery or failure of the emergency fuse. Since each of two positions of the right-hand switch giving magneto also gives charge, i.e. dynamo excited and cut-out contacts made, this means that in the ordinary way no running of the car should be attempted with the battery disconnected, for in these circumstances, though no current is indicated by the ammeter, the voltage of the system rises above normal. Considerable protection of consuming apparatus other than lamp bulbs is afforded by the cartridge type field fuse in the dynamo field circuit, which will melt when the voltage is excessive, and save also the dynamo and cut-out from damage, but it will be understood that it is impossible to arrange this fuse to be a universally infallible protection without introducing the possibility of this failing in normal running. It is therefore essential that if there is a chance of the chassis being run with the battery disconnected, the cartridge type field fuse on the distribution board be removed from its clip, or, alternatively, the central (exciting) wire, | ||