How to Replace the Nozzle

[ Manual Pro2 Series - How to Replace the Nozzle - V1.0 ]

For the instructions on removing or re-installing the assembled hotend onto the extruder head, please refer to the Manual Pro2 Series - 032 How to Replace the Hotend-V1.0.


1. First remove the Silicone sleeve from the hotend(If there is a silicone sleeve on the hotend).

Use an 8mm socket wrench to remove the old nozzle from the heating block.

To prevent damage to components of the hotend, DO NOT exert force on the throat tube. Hold the solid section of the heating block during adjustments. 

Note: Please preheat the hot end if there is material sealing the nozzle otherwise the nozzle might can’t be removed. Use spatula and tweezer to remove the other material attached in the nozzle or heating block.


2. Insert a cleaning rod completely through the hotend and ensure that tube is completely clear of blockages.


Screw the new nozzle into the heating block. Do not tighten completely. Ensure that there is a visible gap between the nozzle and the heating block.


3. Hold onto the heating block, and tighten the throat tube by rotating the heat sink. Rotate until the nozzle ‘catches’ on to the tube (begins to spin).

The heat sink may be askew when the right position is achieved. This is normal, and will be adjusted in the latter steps.

*If the heat sink is loose on the throat tube, secure the fixing screw prior to tightening the throat tube. 


4. Hold on the heating block with an alen key, and tighten the nozzle completely using an 8mm socket wrench. Check that a gap between the nozzle and the heating block has been maintained,


5. Re-attach the silicone sock, then loosen the fixing screw on the heat sink. Lie the hotend assembly on a flat surface, rotating the heat sink so that the fixing screw is facing outwards


Move the heat sink down so that it rests on the silicone sock, and tighten into place.


If you do not have a silicone sock, adjust the heat sink so that it is flush with the bottom of the large cylinder.


To reinstall the hot end assembly into the extruder head, please refer to the instructions in Manual Pro2 Series - 032 How to Replace the Hotend-V1.0.


[ Manual Pro2 Series - How to Replace the Nozzle - V1.0 ]


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