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Dewalt Impact driver DCF840 Teardown

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Dewalt Impact driver DCF840 Teardown, Gearbox / Impact section: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Dewalt Impact driver DCF840 Teardown, Gearbox / Impact section: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Dewalt Impact driver DCF840 Teardown, Gearbox / Impact section: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
Gearbox / Impact section
  • Planetary gear set: reduce motor speed and increase torque

  • Splines to gear box case

  • Internal teeth for planetary gear set

  • Spring (hard to see) for impact function: base spins and strikes output drive labeled with blue arrow in last picture

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