PVA Stuck

[oakcreeklibrary 0]

Hello - we have a Ultimaker S5 Pro bundle and I believe that there is broken PVA filament in the decoupler of the 2nd tube.  When I took off the tube at the top of the decoupler there was some filament sticking out - I pulled it out and then tried to put filament in to push any further pieces out, but with no avail.

 

When I stick in filament and push it in the top of the decoupler it only goes about 2 inches and get stuck.  When I go from the front and try doing it through the Material Station, tube 2, it goes about 12 inches and then won't go any further.

 

I saw some other posts about PVA breaking and someone posted this guide (attached) -  but I'd prefer not to have to take the whole thing apart if possible (for obvious reasons lol).  I've tried this and it doesn't work:  https://support.makerbot.com/s/article/1667337954457?_gl=1*1pb9q1q*_ga*MTEyMzE1OTMyNS4xNjM5NDQwMzEw*_ga_JHX8W909G8*MTY3NjY2NjQ5My4xMy4xLjE2NzY2NjY5MzIuMC4wLjA.

 

Any assistance anyone could provide would be appreciated.

Repair-Manual-Material-Station_Prefeeder.pdf