Janome AirThread 2000D Professional Service Bulletin page 39

Removing and Installing Lower
Turn the handwheel toward you to bring the lower
looper to the outmost right hand side position.

Remove the screw then remove the looper.
Install the looper and tighten the screw temporarily. Gently, connect
the 2 metal pipes. Using the tweezers, gently start pushing the clear

rubber tube up until the rubber tube is the middle of the 2 metal pipes.
Looper
39