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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).
Summary and amendment notes for the Dynamo and Distribution Box sections of a manual.

Identifier  ExFiles\Box 26\2\  Scan351
Date  10th May 1930 guessed
  
-2-

Dynamo.

The dynamo....................generate current of amount suited..........
White and Black C.

When, for................... the contacts.
(NB. The five paragraphs so covered become one paragraph).

The bearings.................. the brushes.

Premature failure..........Rolls-Royce Ltd.

(NB. The two paragraphs so covered become one paragraph and the "for them" omitted).

When new brushes...........in any case.

When it is necessary to disconnect the wires from the dynamo, ............... distribution box.

Distribution Box.

The distribution box..........removing the cover.

If the charging switch be "on" the cut-out is operated when the dynamo speed rises high enough for that unit to be excited up to battery voltage, the shunt coil being then virtually connected across the main terminals of the dynamo. This magnetically closes the cut-out contacts which make connection via the cut-out series coil between the negative (dynamo) terminal and the battery negative via the chassis frame. The main charging current is thus permitted to flow from the dynamo positive terminal, via the switchbox, ammeter and the main fuse, through the battery to the frame returning via the series coil and the contacts to the negative dynamo terminal.

The series coil .......... exceptional circumstances.

The fuses................... in order.
  
  


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