Changing the carbon brushes of the motor – SINGER 10UJ13 User Manual
Page 23
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15
CHANGING
THE
CARBON
BRUSHES
OF THE MOTOR
Two carbon brushes (in two positions) are
used for the motor on this sewing machine.
The carbon brushes should be changed according
to the following method, as they will wear
after long hours of use.
A) Period for changing carbon brushes
The carbon brushes should be changed when
they have worn too short for contact (see
carbon brush figure),
B)
First remove the motor. Remove the brush
caps (see figure of motor), and replace the
brushes.
Figure of carbon brush
10mm
Brush cap (two)
The carbon brushes should be changed when
the brush section has worn down to approxi
mately 3 mm as shown in the figure.
Carbon brushes may be purchased from any
sewing machine shop or electrical appliance
shop.
Note:
Special care should be taken with
regard to the aforementioned points as
failure to change the brushes may result in
sparks emitting from the motor which will
cause damage to the motor.
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