Thanks for the advice
The rollers don't have bearings, the inside of the roller has a copper insert which slips right on the shafts that are attached to the carriage, yes there is grease on the tracks, should i just spray lots of degreaser on them?
If feel like the rollers bottom out against the carriage(where the shafts of the rollers are welded onto the carriage
Should there be a spacer/washer be between the base of the roller and the carriage so that it can't bottom out?
Sorry theres no parts drawings or anything available for this machine (it's from 1968 LOL)