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Tools and Parts Required to Provide Power to the T640 Router


To provide power to the router, you need:

  • DC-powered routers: 7/16-in. (11 mm) hexagonal-head external drive socket wrench, or nut driver, with a torque range between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm), for tightening nuts to terminal studs on each power supply on a DC-powered router.


    You must use an appropriate torque-controlled tool to tighten the nuts. Applying excessive torque damages the terminal studs and the power supply. The absolute maximum torque that may be applied to this nut is 45 lb-in. (5.0 Nm).

  • AC-powered router:

    • Phillips (+) screwdriver, number 2 to access the metal AC wiring compartment

    • 1/4-in. slotted screwdriver or 5/32-in (4-mm) Allen wrench to attach the ground wire and input terminal wires of the AC power cord.


      The terminal connections have either slotted screws or hex screws. Use a 1/4-in. slotted screwdriver for the slotted screws. Use a 5/32-in (4-mm) Allen wrench for the 5/16-in hex screws.

  • Electrostatic discharge (ESD) grounding wrist strap