Hi thanks for taking the time to have a read of my questions.
I’m
New to this so please give me some slack on terminology.
I been running a Ozito cylinder but I got my hands on a Victa 14” imperial . Got it running after a few beers and choice words.
But I’m having trouble with the 3 wooden rollers at the front not spinning well like they are stuck or jammed. I tried wd40 but being timber wasn’t sure that would work. Tried cleaning but they are slightly moving but not freely. So when I mow they either stop me or just slide.

My questions are

how can I make these spin freely or can I upgrade to a steel roller at all with some minor modifications.

Also how do I adjust the height I can nkt figure it out and YouTube not been very helpful so far.
Thank you

Attachments
IMG_0195-compressed.jpeg (437.99 KB, 28 downloads)
IMG_0194-compressed.jpeg (221.44 KB, 28 downloads)
IMG_0196-compressed.jpeg (199.17 KB, 28 downloads)