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K2 / K2 Pro PTFE Tube Replacement Steps & Tools Required

Jun 5, 2026 17:38:31

Tools

New PTFE tube

Replacement Steps

Note: This tutorial is for reference only. Please refer to the actual product.

Disassembly

Remove the short PTFE tube.

At the back of the machine, press the two-way tube connector and pull out the PTFE tube.

Remove the short PTFE tube
pull out the PTFE tube (2)

Remove the long PTFE tube.

Pull out the buckle, press the two-way tube connector, and pull out the PTFE tube.

Remove the long PTFE tube
pull out the PTFE tube

Remove the front cover of the nozzle.

pull out the PTFE tube

Press the tube connector and pull out the PTFE tube.

Press the tube connector and pull out the PTFE tube

Pull out the buckle.

Pull out the buckle

Pull out the PTFE tube.

Pull out the PTFE tube

Pull out the tube connector.

Pull out the tube connector

Remove the PTFE tube.

Remove the PTFE tube

Installation

Thread the PTFE tube through the tube connector, insert the PTFE tube about 3/4 of the way.

Thread the PTFE tube through the tube connector
insert the PTFE tube

Thread the short end through the rubber tube.

Thread the short end through the rubber tube.
Thread the short end through the rubber tube

Thread the PTFE tube through the fixing clip.

Thread the PTFE tube through the fixing clip

Insert the PTFE tube into the tube connector.

Insert the PTFE tube into the tube connector

Install the front cover of the nozzle

Install the front cover of the nozzle

Insert the two-way tube connector.

Insert the two-way tube connector

Insert the short PTFE tube.

Insert the short PTFE tube
Insert the short PTFE tube

Insert the buckle on the right side of the two-way tube connector.

Insert the buckle on the right side

Adjust the position of the PTFE tube and tube connector to ensure better contact between the tube connectors and rubber tube at both ends.

Adjust the position of the PTFE tube

Insert the buckle.

Insert the buckle

Friendly reminder

If you still haven't resolved the issue after following the steps in this document, or if you encounter any difficulties during the process, you can click the right corner of the wiki page online support to contact our after-sales team for more help.