I have a Pfaff 2170. When I first start sewing the display panel is half blocked out with yellow. It has been going away, however after sewing for a period of time, when I press on the foot pedal the

Rick

• 202 Answers
• Posted on Dec 20, 2008

SOURCE: Timing is off on my Pfaff 2140/2170 machine.

Basically on any sewing machine to time it you will need to separate the two gears that drive the hook. Usually loosen the set screws that attach the gear to the shaft and separate them.
Time the hook first. On center needle position, set the hook so that the point is behind the needle when the needle bar has risen about 2.5mm.
2) Set the needle bar height. Choose the needle position which is the last for the hook to pass.
(Left on most machines, right on older Vikings) At this point, place the point of the hook behind
the needle and set the needle bar height so that top of the eye is just barely below the tip of the
hook.
3) Check feed timing. Set the stitch length to the longest stitch. The needle should enter the
fabric just as the teeth drop below the surface of the plate.

SOURCE: foot pedal does not function on pfaff 7550

my pfaff sewing machine footpedal sticks

SOURCE: Husqvarna 2000 sewing machine foot pedal stuck on but not pressed

you may need to take foot pedal apart and clean it the contacts inside may be dirty and causing it to stick

SOURCE: singer 522 starts sewing at speed without the

Undo the foot control and take out the small square suppressor and throw it away, you don't need it anymore.

SOURCE: My Viking 5710 starts to sew without any pressure on foot pedal

Mine does the exact same thing. I think the problem might lie in the cord to the foot pedal. The cord packs into the foot pedal for storage, which forces the cord to to remain bent during storage. I believe the wires in mind became damaged and broken so I took it apart and reconnected the wires at the spot where the connector meets with the wires. But I still don't leave it plugged in if I'm not using it, it could be a fire hazard.