Unscrew Dynamo leads (M and L) Dynamo securing strap (0) and Nut from Drive
cover, the Dynamo is then free. Wrap some insulating material round lead M, otherwise
the battery will be discharged if the bare end touches any portion of the machine; occasionally
refill the lubricator fitted to the drive cover with grease and screw the cap down. In the
event of the Dynamo ceasing to charge, remove the Dynamo end cover and observe whether
the cut-out closes when the engine is " revved up." If it does not, verify that all three brushes
are settling down on the commutator properly. If after checking alt the leads and connections
as being tight and the dynamo still refuses to charge, take the machine to your nearest Lucas
Depot for attention.
Never attempt to push the points of the cut-out together, this will result in a
dead short.
If you are compelled to run the engine for any length of time without the Battery,
or if any trouble is experienced with the Dynamo withdraw the brushes from their housings
and clip them under the brush springs or remove the Dynamo altogether until this can be
attended to either by the nearest Lucas Depot or an electrician. Both the Lucas Magneto
and Magdyno are intended to run without attention for at least 10,000, after which the In-
strument should be dismantled for the bearings to be repacked with grease.
A—Securing spring for contact breaker cover. B—Contact breaker cover. C—
Fibre heel. D—Contact points. E—Locking nut. F—Adjustable contact point. G—Con-
tact breaker fixing screw. H—Locating spring. J—Nut securing brush eyelet, K—Cut-out,
L—Cable to headlamp switch terminal marked FI. M—Cable to headlamp switch terminal
marked +. N—Cable to sparking plug. O—Dynamo securing strap. P—Spring lever
holding brush in position. Q—Carbon brush. R—Pick-up. S—Securing spring for
pick-up. T—Cover. U—Earthing terminal. V—Screw securing dynamo strap. W—Cover
fixing screw.
—17—
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