Stitch Length Knob Stuck?

plumber4sewing

November 1, 20143 found this helpful

We have the exact same model and problem. I (husband) fixed it by gently moving the nob with a plumber's wrench protecting it with a rubber thingy to open jars - not elegant but it works! Now my wife will need a plumber's wrench in her sewing kit :-)

mitte27

April 5, 20190 found this helpful

Hi did you ever figure out why the knob did not turn?

 

marye0065

July 17, 20200 found this helpful

It probably needs to be oiled! If you have the manual, the piling instructions will show you how. If not search fixya.com for detailed on unfreezing the dial with a drop of oil.

 

gma2003

November 22, 20210 found this helpful

I have the same machine and exactly the same problem. The problem is that the parts are extremely precisely machined and with long term storage the movement freezes. You need to disassemble and remove the length assembly (remove top, bottom motor and machine wheel to access the three screws you need to take out). Once I got it out, I used pb blaster, let it sit, then used vice grips on the inside parts (NOT the knob- it will break) and worked the two parts (theres an inner and outer piece that was frozen together) until they moved freely and after removing the snap clamp, pulled the pieces apart and silicone greased them so they moved together freely.

kandamill

September 16, 20220 found this helpful

Gma, your answer is excellent. Dismantling the parts, cleaning and lubricating as you described is the most thorough way to correct the problem. However, in many cases, it isn't necessary and many people are not confident enough to take on such an endeavor.

I would suggest first oiling the machine with Tri-flow oil. If you don't mind making a mess, you could use the Tri-flow spray lubricant. Regular sewing machine oil works too but make sure it has a long tube to reach where you need to oil. Never use other oils not meant for sewing machines.

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If the machine is still stuck, heat up gently with a hair dryer, being careful not to overheat plastic or rubber parts. Keep wiggling the stuck part. If no success, take it outdoors and spray with liquid wrench or PB blaster. Let it sit for a few days and keep trying to move the part. Keep in mind that the part that is stuck may not be close to the knob that won't move. Try to see what the knob is connected to that may be stuck. If in doubt, just spray the Liquid Wrench all over and repeat daily.
Above all, be patient and expect that it may take several days for parts to loosen up. Don't force knobs, especially if they have plastic parts. They will break. If the parts are metal, gently tap with a punch and hammer. If the part is delicate, you may need to cover it with some padding before tapping with the hammer. Hope this helps.

 

dammann5

March 5, 20230 found this helpful

Hair dryer worked!!!

 

penniejackson2815

December 31, 20230 found this helpful

How much is this machine cost.