Description:


These instructions are for replacing the hobbed bolt on your Airwolf 3D HD series extruder assembly.

 


Process:



1) Heat your hot end to the correct temperatures of the filament current loaded  and remove filament from machine.

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2) Remove back panel from the printer using provide allen wrench set. This panel is held in place by 6 screws.

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3) Depending on the version extruder you own, this step will vary. 


a: E clip holding the hobbed bolt in place

      -Use a screw driver to push the E clip off


 b: 2 bolts holding the hobbed bolt in place 

       -Using two 13mm wrenches, removes nuts from end of hobbed bolt. 


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4) Pull tubing adapter from the extruder assembly and remove the 3 screws securing it to the printer.

          TIP: There is a hole in the acrylic for reaching the side screw!

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5) **Keep track of hardware** Push old hobbed bolt from extruder


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6) Remove the large nylon gear from the old hobbed bolt. Using a rubber mallet, hammer gear into the new hobbed bolt. 

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7) Put 2 washers on new hobbed bolt and push through bearing and extruder. You will need to align the larger nylon gear with the smaller. Confirm proper movement.


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7) Add washer on end of hobbed bolt and reinsert E clip into groove. If you originally had the 2 bolts, you will no longer be needing them!


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Please open a Tech Ticket if you have any questions or need assistance with this process.