Model C2 Disassembly Video: https://www.youtube.com/watch?v=RlfHZjX2IoM&list=PL_xW-jKviJ4vowMpr617ofBVJI9mpuDPK&index=3
Model F folds rather than disassembles.
Folding Instructional Video: https://www.youtube.com/watch?v=2GqpWVt0Yjc
See page 30 of the Model R user manual for assembly and disassembly instructions: https://6576727.fs1.hubspotusercontent-na1.net/hubfs/6576727/Brochure/2025/model-r-user-manual.pdf