Festool PN561438 User Manual

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Changing the Motor Brushes 
The motor brushes wear out over time and need to be 
replaced by an authorized service center. Festool does not 
condone brush replacement by the end-user. Completion of 
this procedure by an unauthorized service center will void 
the tool's warranty.  
The motor brushes are graphite bars that provide an 
electrical connection between the motor controller and the 
rotating armature. When the brushes have worn past their 
useful length, spring loaded wear pins are exposed that 
separate the brush from the armature contacts. This disables 
the motor to prevent damage.  For a shorter break-in period 
without excessive arcing, new brushes have ribs that quickly 
form to the curve of the armature. 
 
Procedure 
  CAUTION! Make sure the power cord is unplugged 
before beginning this procedure.  
1.  Remove the four screws that secure the access cover 
to the motor, and remove the cover. 
 
 
2.  Lift the wire connectors off the terminals on the brushes. 
3.  Remove the screw that secures each brush to the motor 
housing. Be careful not to drop the screws into the motor. 
4.  Carefully lift the brushes up to remove them.  
5.  Insert  the new brushes into the motor, and reassemble the 
saw by reversing the previous steps.  
 
 
 
Instruction Manual 
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