First machine, singer 2282 second hand (inactive for 3 years), top thread visible on back no matter the top tension. Already checked: correctly threaded (thread goes through tension disks), bobbin tension is
Tradition™ 2250 Sewing Machine
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Spool Pin, Singer #K6B0383210 : Sewing Parts Online
Buy Singer Tradition 2282 - Sewing machine at Ubuy Nepal
Bobbin Winder Fit Singer 2282,3221 4411 5511,5532 Heavy Duty, 5554 # K6a0555000 - Sewing Tools & Accessory - AliExpress
User manual Singer Professional 5 Serger 14T968DC (English - 74 pages)
First machine, singer 2282 second hand (inactive for 3 years), top thread visible on back no matter the top tension. Already checked: correctly threaded (thread goes through tension disks), bobbin tension is