hello everyone ,hope you guys doing well
we have 4 head machine from china (Sinsim) and recently we have problem with one of our head (actually head number 4 )
all other heads sewing the design nice and well but head 4 leave some of complex fills out of steil border line, in some parts head 4 sweing far off what other heads doing
any one can help ?
i restarted all factory settings for machine but no change
love n peace
kh