My singer merrit 4525 sewing macine is making a squealing noise

https://www.youtube.com/watch?v=aQgVgeksE9w

You Are Using the Wrong Bobbin If they are too small, they can bounce around in your bobbin case and cause a knocking or clunking noise. If they are too big, they will not spin freely in your bobbin case.
https://sewingsociety.com/why-is-my-sewing-machine-making-a-knocking-noise/

Most Singer Merritt sewing machines do not drop the feed dogs. Instead, you place a cover over the feed dogs. Here's one replacement for the cover: https://www.sewingpartsonline.com/feed-cover-plate-singer-360-sewing-machine.aspx . This fits the Merritt 2404 and Merritt 3130, among others.

Many Singer manuals are available here: https://www.singer.com/support . You need the model number to find a manual. The Merrit 2404 manual is here: http://www.singer.com.br/wp-content/uploads/2014/02/Singer-Merrit-2404.pdf .

Please add a comment with the model number of your sewing machine to find out if a different feed dog cover is needed for your Merritt. I hope this helps.

Cindy Wells

Download the user manual free at the Singer site under support -- it will show you with pictures how to do this.

You can find your manual here (Singer Support):

Instruction Manuals

SINGER 4525 Manuals


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The service manual for that machine can probably show you, and I would make sure and get the parts list as well. I just checked Sewing Parts Online, and it was not listed, but if you send an email to them (they give the address at the top of the page), they can and will purchase it for you. Usually takes about 2 weeks. However, I just saw a used one in nice shape on eBay for $72.99 and $27 shipping in the original box, so you might consider just buying another one. I also noticed that a new tension assembly is being sold for $18.95 including shipping, and if you write to them, they may include replacement instructions. Just do a search on Singer 4525 on ebay--they have all kinds of bobbins, foot pedals, and parts for it.

contact singer customer service about a manual and bobbiins

Go to singerco.com and download your manual for free under support

Read your manual! If you do not have one, download one for free at singerco.com

how do you install a bobbin basket on a singer merritt 4525