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).
Service sheet detailing the cause and remedy for dynamo overheating on 40/50 and 20/25 chassis.
| Identifier | ExFiles\Box 59\1\ Scan043 | |
| Date | 4th May 1932 | |
| X8783 X6045 Hd.{Mr Hayward/Mr Huddy} For Depot Sheet. From HS{Lord Ernest Hives - Chair}/Wst. HS{Lord Ernest Hives - Chair}/Wst.3/MA.4. 5. 32. DYNAMO OVERHEATING. Overheating of the dynamo on both 40/50 and 20/25 chassis occurs if a bad connection exists anywhere on the dynamo to battery circuit. These bad connections more particularly occur at the battery where the acid corrodes the terminals on the main (red) positive wire. In cases where dynamos fail due to overheating causing the commutator solder to run it should be ascertained before a new dynamo is fitted that all connections from the dynamo to the battery are clean and well tightened up. The cable eye on the main battery red positive wire should be resoldered if this is badly corroded. HS{Lord Ernest Hives - Chair}/Wst. | ||