Hi..sewing machine is ok, a little too light but ok. Move your margins all the way out so that you carriage can move its full length.
If you look at the underside of the carriage you will see what they call Rails. These are tracks in which the ball bearings reside. 4 or 5 drops of oil on these and the bearings will be lubed. I use a little heavier grease not oil, but light oil. Too much oil is worse than none.
I think you problem is in the carriage return clutch..something that should be handled by a Pro.. Too many parts, springs and broken adjustments for the layman. Some times you can spray 1..I repeat 1 small shot of degreaser on the carriage return clutch (located on the right side, middle of the typewriter. Usually has a fabric band winding around it.
If not a Pro can help you..
Hope this helps.
Squipps