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).
Inspection and testing procedures for electrical components and pump deliveries.
| Identifier | ExFiles\Box 27a\2\ Scan266 | |
| Date | 17th October 1933 | |
| -2- Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring}8/KT.17.10.33. (d) That the contact points are in alignment. (it will be found, however, that the points on the rocker are set back slightly in comparison with these on the contact spring blade. This is in order as it allows a brushing effect on the points when making contact and by so doing tends to keep them clean). (e) That the rocker mechanism is not excessively slack on the pivoting pins. (f) That one end of the earth wire is well but neatly soldered to the rocker, and that the other end is fastened by a Ross Courtney terminal. (g) That the conductors are flexible, one making contact by means of a Ross Courtney and the other being clamped under the head of the main feed bolt - particular notice should be given to the latter connection to ascertain that the flex has not been cut through by the bolt head. (h) That all bakelite mouldings are free from cracks. INSPECTIONS All electrical connections can be made by removing bakelite end covers. It is essential that the battery from which the pumps operate is kept fully charged at 12 volts. TESTING. Paraffin is to be used in place of petrol for testing pump deliveries. (A) Deliveries must be checked through both float chamber feed pipes at the same time (This can be done by bending feed pipes close together.) (B) The time taken to deliver 1 pint of paraffin must not be less than 36.5 secs, that is 99 pints/ hour, which is equivalent to 130 pints/hour of petrol. It may be found that though any two pumps in comparison that are delivering over 99 pts/hr. vary to the extent of 10% in maximum | ||