原帖由： Wanda

文本:

If the machine has not been used in a long time, the lever and/or feed dog mechanism might be frozen. It will take patience and time to oil with something like Tri Flow (might need to set for a while to penetrate), then use the warm setting on a hair dryer at low speed to heat up the area as you move the lever up and down. The closer you can get to the problem area the better. Good luck.

状态:

open