A friend of mine lugged her old Kenmore over for me to check out. Every needle she put in was hitting the bobbin casing and breaking - I thought she wasn't getting it all the way in. After 3 needles and a tear down on the bobbin casing I gave up-loaded her up and took her to my Guru of Older Ladies- At some point in time a needle had broke off and left a small snicket in the channel -A 40 minute drive to have it fixed in 4 minutes. Some times ya just need a 3rd set of eye's. We still laugh about this