HMPRO36AD OPERATOR’S MANUAL
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3.5. Replacing the motor brushes
Check the condition of the carbon brushes every 100 work hours. To do this, unplug the
machine from the power source, and unscrew the cover (1, Fig. 6). Next, unscrew the
pressing plate (2), and then remove the brush holder (3) and the brush (4). If the
length of the brush is less than 5 mm (3/16’’), replace both brushes with new ones.
To install brushes, proceed in reverse order. After the replacement, run the motor
without load for 20 minutes.
Fig. 6. Replacing the brushes
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