Help Needed Adjusting Omega D5 Enlarger

I am trying to figure out how to tighten the bellows adjustment roller rod. The only adjustment I see halfway accessible from the front without disassembly looks like it's actually used to adjust alignment. These adjustment screws press against the plastic sleeve that the roller is extended through. At the top of the assembly or the double rods extend through a plate, I can see a hole that looks like it might contain a very small hex head setscrew, but to get added to see for sure and adjust it looks like it will require disassembly.

My D5 owners manual doesn't address this situation. Any suggestions?

Hi megzdad81,

There is a little leaf spring that pushes against the plastic bearing. The force is adjusted by a screw behind it. On both sides.

Neal Wydra