Sewing Through Thick Spots With Juki 1541S

[Wizcrafts]

Gregg's picture shows the upper feed arm at the lower marker line for the least amount of alternate vertical movement. My Juki 1508 came adjusted the same way. This thread describes the ability to walk-over humps as an advantage of increasing the vertical movement. According to the manual, the vertical movement adjustment can be varied from about 3 mm (lower marker line) to about 5 mm (upper marker line).

I'd like to know if there are disadvantages to increasing the vertical movement and what those disadvantages might be.

Your machine will pound more when the lift is higher. Lower lift makes for a smoother running machine. But, most leather sewers sew so slowly that they won't notice the change in vibration. I sometimes sew flat out, on long runs. When I know I will be doing that I lower the lift for less pounding. Then I forget and try to sew over thick seams and wonder why the feet won't climb as high as usual. Doh!