BRUSH HOLDERS
BRUSH BEDDING RECCOMENDATIONS
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Ensure that the brush holder functions correctly and check that the interior of the box is in good condition.
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Adjust the distance of the brush holder from the commutator to between 2 and 3 mm.
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Place the brushes on parallel and equidistant tracks. When staggering of brushes is necessary, this should be done in pairs of arms so that there is always an equal number of positive and negative brushes on the same track.
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Align the leading edges of the brushes on - each of the arms flush with the edge of a commutator bar.
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Verify that brushes of successive arms are an equal distance apart.
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Verify, by use of a dynamometer that the pressures are equal on all the brushes.