Some torque wrenches are not intended for loosening. Read the instructions for your torque wrench. Alternatively, you can use a ratchet or a side wrench size 7 mm / 0.28".
⬢With one hand, hold the heaterblock using the wrench size 16 (0.63"). Place the wrench under the cables to avoid damage.
⬢With the other hand, use a torque wrench, place it on the nozzle and slightly loosen it. Do not remove the nozzle at the moment.
⬢Navigate to the Preheat menu and at the end of the menu select Cooldown.
Wait 15 - 20 minutes to cool down completely before proceeding to the next step.
⬢The hotend is removed by inclining and pulling at the same time. See the first picture showing the WRONG inclination. This hotend is inclined too much to the front and there is no gap between the hotend and the extruder body. Hotend is partly inside and you won't be able to remove it.
⬢The second picture is showing the CORRECT inclination. The hotend is tilted, but there is a gap between the hotend and the extruder body. You will be able to remove it.
⬢Now, let's incline the hotend properly. Take pliers in the second hand, grab the hotend above heatsink's ribs, pull downwards and slightly towards you. The hotend should "jump" out. Make sure you don't stretch the cables too much or you might damage them.
⬢Take the new heatbreak and apply most of the content of the thermal paste package on the long thread. Spread it evenly with a paper towel.
Do not apply the paste on the short thread!:
⬢Incorrect application: the thermal paste is covering both threads of the heatbreak.
⬢Correct application: the thermal paste is covering on the longer thread of the heatbreak.
Applying the paste on the short thread can create a gap between the heatbreak and the nozzle. The nozzle might then become clogged when the filament is loaded.
⬢Insert the thermistor to the new heaterblock and secure by tightening the lock screw.
⬢Then insert the heater to the heaterblock and secure it by tightening the black screw. Make sure the heater hangs over on the right side, see the picture.
Ensure both thermistor and the heater are properly inserted and tightened!
⬢Lightly screw in the nozzle. Create a gap 0,5 mm (0.02 inch) - similar to the picture.
⬢Secure the Nozzle against movement with one hand.
⬢With the other hand, lightly screw the heatbreak with heatsink into the heaterblock until it touches the nozzle. Do not tighten by torque wrench at the moment.
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