Curtain cleaning 625d

[Jalandhar]

Hi! We just bought a used 625d. We want to clean the curtains that separate the bunks from the main part of the cabin. The manual says curtains should be dry cleaned, but unlike the side wall curtains, which are velcroed, I can't get them off the track. Do they snap off, do I unscrew the track? Is there another trick? I would love input from anybody who has washed them!