Meyra Optimus 2 2.322, Service Manual

Page: 8 / 76

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– Slightly pull out the carbon brush retainer (4).
☞
Note:
Two opposite carbon brushes each are connected
with each other through a cable (H) that runs over
the motor.
– Unscrew the phillips head screw (I) of the connec-
tion cable.
– Completely remove the carbon brush retainer.
☞
Note:
The carbon brush retainers cannot be pulled straight
out of the opening. – Slightly turn the carbon brush
retainer sideways while pulling it out.
☞
The carbon brushes are worn when the pressure
springs come to rest on the retainer without the
carbon brushes reaching over their guide way. They
are also to be replaced when the contacts (K) ap-
pear black and dull. – On intact carbon brushes the
contacts are anthracite coloured and shining.
☞
When one or more carbon brushes are extremely or
totally worn, all carbon brushes are to be exchanged.
– As a spare part the carbon brushes are supplied in
a set completely assembled in the retainer.
– If the carbon brush is completely intact reassemble
the carbon brush retainer and check the next one.
FITTING
The fitting is done analogue in reverse order.
COLLECTOR
The collector (L) located between the carbon brushes
is also to be checked for damages. – To check them
remove a carbon brush retainer.
☞
Note:
The slight grinding marks caused by the carbon
brushes correspond to their normal wear and have
no influence on the performance of the motor. Ex-
treme recesses have to be smoothed out. If partial
segments have been broken out or are extremely
burnt the drive unit has to be replaced.
I
L
K
H
4