- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
1. Remove any stuck material from the feed dog, bobbin area including the hook (pointed object under bobbin). Lubricate as you go.
2. Remove top and end of sewing machine to look at the motor and belt. Place pressure on the foot pedal. Still slow?
3. With bolt attached to motor release the pressure on the belt. Now, place pressure on the foot pedal. Did you notice any increase in speed?
4. Apply pressure on the foot pedal and simultaneously adjust the motor. Adjusting means tightening of the belt and making it move in a straight line. (If it doesn't move straight it puts pressure on the motor so it will move slow.) When you have adjusted the motor to the right position the motor will be at it's highest speed.
5. If the pressure foot is the problem it will require a pro to take care of it.
There is probably a bad connection in your foot pedal. Try moving it around with your hands at the contact points while pressing to activate. If it goes when you are shifting its position then it needs to be fixed or replaced.
Check the switch it is by the pedal make sure it is adjusted properly and moving freely sometimes they get sticky when exposed to alot of the elements and this part gets alot of wear. Should be checked regularly and adjusted . It should have a lock-nut assembly and is fairly easy to locate as it is right in the general area of the foot brake area.
There should be a couple of allen screws on the shaft that you can loosen, which should allow you to swing the motor head in the direction you want it to be pointing for the desired pedal position. Tighten and carry on.
Only three things would cause the problem. 1) a slightly beny shift fork, 2) a shift index wheel loose, 3) the foot shift lever needs to be adjusted.
The most likely source is the shift lever needing to be lower. Once you are in 5th gear you move your foot to the top iof the pedal in preparation for a downshift. At high speed your entire body is leaning forward FOOT INCLUDED. Chances are that enough pressure is on the pedal to move the slider gear out of position and thus out of 5th gear.