Look at all the brake shoes and make sure one isnt rubbing a wheel, ....while it’s flipped over, look at the cross head guides, and make sure no. 1; one of them isn’t closed too much, no.2; make sure they’re not bent inwards, allowing the rods or hardware to rub the back side of the crosshead or guides.....hard to say from a video, but also check things you wouldn’t always consider, like pick up rollers, anything that’s a rotational part....
Pat
