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.
--
2) Remove back panel from the printer using provide allen wrench set. This panel is held in place by 6 screws.
--
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.
--
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!
--
5) **Keep track of hardware** Push old hobbed bolt from extruder
--
6) Remove the large nylon gear from the old hobbed bolt. Using a rubber mallet, hammer gear into the new hobbed bolt.
--
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.
--
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!
--
Please open a Tech Ticket if you have any questions or need assistance with this process.