Reliant Rebel 700 1967 Workshop Manual page 102

Alternator (750 Van only, from chassis No 941001)
Description
The alternator is a 12 pole 2 brush machine and is driven by a belt
from the crankshaft pulley. To ventilate the interior components a
multi bladed fan is fitted behind the drive pulley.
The brush gear is enclosed in a moulding screwed to the slip-ring end
bracket thus providing protection against adverse effects of dust and
moisture.
Voltage control is achieved by a model 14TR solid state regulator built
in to the slip-ring end bracket, replaceable if faulty. A normal type of
charge indicator (warning light) system is used with this alternator.
The warning light is connected in series with the field supply diodes
and is extinguished when the voltage generated in the diodes equals
the supply voltage from the battery.The only attention that the
alternator is likely to require is the occasional checking of the brushes.
remove the alternator end cover, unscrew two 4BA bolts and lift the
brush box clear from the slip-ring moulding bracket. Check that they
are free from oil or grease. If necessary they can be cleaned with a
petrol moistened cloth. Check brush and springs for ease of
movement in the holders. If the overall length of the brush has worn
to less than 7.62 mm (0.30 in) the brushes and springs need to be
renewed.
Wipe away any oil or dirt which may have collected around the slip-
ring end cover ventilation apertures. The main bearings are packed
with grease during manufacture so do not require attention.
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