I have a Pfaff 1222 sewing machine. the belt started to slip and the machine started to make loud clanging sounds and froze.; I have since changed the belt and the machine is still makeing the loud noises and the belt is still slipping. Is there something special I should be doing when I change a belt
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Re: pfaff 1222 belt
Hi - a few suggestions:
May just need a good thorough service - generally a good idea to have it completely gone over - by an experienced Pfaff tech - every year or 2. Internal parts can dry out and simply get jammed.
The timing could be off - again an experienced tech can take care of.
The cam-stack (the part that actually makes your stitch formations) may have cracked. At the age of your machine, this isn't uncommon.
At the age of your machine, many other owners actually have it "rebuilt" by an authorized Pfaff service person. This model is one of those that's worth the investment compared to buying a new machine of the same caliber/quality.
If you are comfortable removing the top cover, you may be able to look at the internal parts to see if anything is broken. This will at least give you an idea of what may be happening.
Many authorized techs will not charge you to look at the machine and give you a quote. We'd suggest calling a few sewing machine stores in your area. Don't hesitate to ask friends for their recommendation of a good service person.
Hope this helps - please don't hesitate to respond if you need further info or clarification.
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try changing the needle clean under the needle plate & in bobbin area for loose threads & lint try rethreading the machine top & bobbin, make sure to get every thread guide make sure the bobbin is inserted correctly in the bobbin case
With power off, take the needle out and the presser foot. Remove the two flathead screws that secure the needle plate from the machine and remove the plate. You'll have a top view of the bobbin housing and see the thread that's stuck to it.
My mother has had a Pfaff 1222 for 40 years and loves it. Take yours to a new/different repair shop or find an authorized place for an overhaul. It's not a lemon, just poorly maintained. you have a problem the service people just haven't figured out yet. If you have taken the same machine to the same people with the same problem more than once and they tell you it's a different cause every time, they are not competent. Also check the owner's manual for any tips.
Have a look at this: remove the top cover and have a look (don't put your fingers in !) at the plastic gear in the middle of the mechanism (left side of he selection keys). It often cracks and then the motor is able to turn the whole mechanism for part of the circumference of this gear and when it passes on the crack, it locks or slows down until the crack is passed. You need to have it changed if this is the case.