Singer Heavy Duty - Adjusting Bobbin Tension, Please read the Description before posting questions.
58:22
Setting the Timing, Greasing & Oiling the Singer Heavy Duty Series Sewing Machines
6:07
🔸 Why doesn't my sewing machine sew? | Crab adjustment
26:44
Sewing Machine Problems: The Most Common Issues
21:38
How to fix your thread looping under the fabric
11:22
SINGER HEAVY DUTY-4423 REMOVING AND REPLACING THE BOBBIN CASE AND SETTING THE THREAD GAP (video 483)
12:01
Solving Threading Problems and other Issues
11:23
Slow down the Singer Heavy Duty Series on some USA Versions
7:11