Originally Posted by
Syd_Khaos
To take the extruder carriage off the trolly there are 2 screws on the underside....but ya dont need to do that in order to get the PTFE tube out.
Use the pre-heat function on the machine to heat the nozzle, and wait till it hits the 230c. Use wrench to undo the nozzle (make sure you hold the hot-block, above the nozzle, with some pliers so it does not twist). When the nozzle comes down the PTFE tube should come with it, if not gently grip the PTFE tube with pliers and pull it down.