How to fix Singer 401-A needs a tune up and rejuvenation.Machine threading & bobbin wind (video 141)
12:36
Using a Singer 401A
22:10
Singer 401A Review: Will It Sew Hard?
35:04
Singer 401A - Repair & Maintenance - Part 1
10:41
How to fix a Locked up Singer 403-A. Step by step service - good @ new Very good machine (video 152)
35:09
Singer 237 Basic Maintenance
1:20:30
Remove and Install the Hook and Finger Singer 401A PART TWO
30:48
How to fix stuck stitch selector knobs on a Singer Model 401A, 500A
49:21