Tufting problem checker
Get a conservative first-pass checklist, then consult your machine manual for repairs.
Switch off and unplug power tools before adjustment. Do not bypass guards or attempt electrical repair without suitable qualifications.
Before opening or adjusting a machine
Always unplug it. Check the exact model manual, and leave electrical repairs or internal mechanism timing to qualified technicians or appropriate support channels.
The troubleshooting library covers individual issues in more depth and links to appropriate materials only when needed.