not feeding material adjusted feed regulating spindle head

[gottaknow]

Unscrew the spindle and inspect the large threads where the spindle turns. If there's a broken thread,you won't be able to adjust your stitch length. There is a way to get around this problem which I'll post some pictures to show you.  I have several of these machines. 

Regards, Eric 

[shoepatcher]

One thing to look for also if the  pointed end of DD si worn off.  I have seen that happen before as well.

glenn