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  1. Make sure all power cables to your 3D Printer are unplugged including wall plugs (A/C) and/or USB cables. Remove the Print Head Assembly and move to a well lighted clean area. Retain all parts and hardware for reassembly!
    • Make sure all power cables to your 3D Printer are unplugged including wall plugs (A/C) and/or USB cables.

    • Remove the Print Head Assembly and move to a well lighted clean area.

    • Retain all parts and hardware for reassembly!

    • Use a #1 Phillips Screwdriver and remove the name plate.

    • DO NOT remove the hot end fan screws

    • Using a #1 Phillips and M2.5 hex, remove the screws securing the part cooler fan.

    • For the socket head screw, go to the next step.

  2. Hold the nut with needle nose pliers and remove the socket head screw and nut. The final screw holding the part cooler duct on is accessed from underneath. Use a #1 phillips for this. The final screw holding the part cooler duct on is accessed from underneath. Use a #1 phillips for this.
    • Hold the nut with needle nose pliers and remove the socket head screw and nut.

    • The final screw holding the part cooler duct on is accessed from underneath. Use a #1 phillips for this.

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  4. Unplug the part cooler fan. Unplug the hot end fan. Remove the hot end fan and holder. Grab the fan with your thumb and index finger and pull it 180 degrees from the opening.
    • Unplug the part cooler fan.

    • Unplug the hot end fan.

    • Remove the hot end fan and holder. Grab the fan with your thumb and index finger and pull it 180 degrees from the opening.

    • Using a small flat tip screw driver, loosen the phoenix connector to release the heater wires.

    • Unplug the thermistor connection.

    • Remove the bottom 2 motor screws.

    • Remove the 2 upper motor screws. They also hold the lever in place, which is under spring tension.

    • Squeeze the lever down while removing or installing the upper 2 to help align the holes.

  5. Loosen the 4 socket head cap screws with M2.5 hex until the horseshoe is loose. Remove the horsehoe. The hot end can now be removed by pulling it down and out of the printed body.
    • Loosen the 4 socket head cap screws with M2.5 hex until the horseshoe is loose.

    • Remove the horsehoe.

    • The hot end can now be removed by pulling it down and out of the printed body.

    • If it is stubborn, you can gently pry between the top fin and printed mount with a flat screwdriver.

  6. Now is the time to repair or replace your hot end.
    • Now is the time to repair or replace your hot end.

    • Important Reminder: If you change any components, note the length of a few things...

    • The protrusion of ptfe tubing out the top.

    • The length of the hot end. Any change here will affect Probe Z Offset and may cause issues if too long or too short.

Conclusion

To reassemble your device, follow these instructions in reverse order.

One other person completed this guide.

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