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8.17.2 Replacing the carbon brushes
Note
Always replace all the carbon brushes on both motors.
CAUTION: Danger of crushing!
• The mobility aid is very heavy. You should seek help from a second person!
Requirements:
• 5 mm Allen key
• 6 mm Allen key
• 19 mm socket spanner
•
• long wooden blocks, min. 14 x 14 x 30 cm
Removing the carbon brushes:
• Switch off the mobility aid.
• Remove the drive wheels as described in Chapter 8.16.1.
• Disengage the motor (1) by setting the engaging lever to “Push“.
• Loosen and remove all four plastic caps (3) using a blade screwdriver.
• Note the fixing position and location of the carbon brushes.
Note
Used carbon brushes need to the refitted exactly in the same position from which they were
taken in order to guarantee optimum contact to the collector.
• Make a marking on the motor and the carbon brushes in order to guarantee correct refitting.
• Remove the carbon brushes completely from the mounting (2).
• Check the carbon brush and spring for the level of wear, broken components or
discolouration.
Refitting the carbon brushes:
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