0.4 hp Motor - Planetary Reduction Gears Repair Tutorials Index

Models: Dynabrade tool that uses a 0.4 hp Planetary-Gear Set
Revised: April 5th, 2013


Use the Disassembly/Assembly links in the upper-left menu along with the link below of additional support documents to repair your tool.


Click Here and enter your Dynabrade Model Number to view the following additional repair support documents;


  • Current Parts Page/Manual
  • Special Tools Needed For Repair
  • Tune-Up Kit Page
  • Disassembly/Assembly Instructions Printable Format.
  • Component Wear Percentages
  • Specific Accessories



  • To avoid damage to the motor housing, use the Special Repair Tools designed for the disassembly/assembly of
    this motor.
  • Disconnect the tool from the air supply.
  • Use the appropriate wrenches to hold the work spindle.

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