Depending on age of tool older models did not have replaceable brushes. Change motor. Newer models are replaceable , go to a service center and get a brush kit for this model. Or online. Open tool with # 8 torx. Do not separate motor and gear case ,chuck remove as one unit. Brushes are solder in .De solder used brushes . Replace one side at a time. These kits come with new coil tension springs .
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Depending on age of tool older models did not have replaceable brushes. Change motor.
Newer models are replaceable , go to a service center and get a brush kit for this model. Or online.
Open tool with # 8 torx. Do not separate motor and gear case ,chuck remove as one unit. Brushes are solder in .De solder used brushes . Replace one side at a time. These kits come with new coil tension springs .