I have one of those in regular use - everything except quilting. SU 62C Yes, the stitch width has to be on zero to make any changes. No, there are no push/pull settings. All cams have to out or at least disengaged to do a 'normal' zigzag. Your pictures remind me that Miss Elna needs an oiling. The machine has been in constant use since 1973 with only one minor problem, and that was my fault. Making wedding dresses and bridesmaid dresses in 1983 I let her get too dry. Silk organza to heavy leather with no complaints - a little workhorse. Mine is missing more paint than yours - the sign of a well used Elna. Sturdy paint is not their strong point.