threader on M7

jan shaw

Periodically the threader on my M7o fails to work. I notice that part of the black arm has "jumped its track". I can poke it back in but it doesn't always work properly. In addition the magnifier (which when purchased came in a package stating it was for the M7 is a tight fit under the treader and often slides off to the left when using it. Does my machine need a trip to the spa or can I fix it.