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Change blades on baby lock bl3-418 - Sewing Machines

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2 Answers

I have a Baby Lock BL4-736D serger. I need the cutting blades replaced. Can I do it myself??


Yes and the instructions are in the book that came with your machine, and there may have been an extra blade with your machine when you got it.

Apr 20, 2017 | Baby Lock Sewing Machines

1 Answer

I have a baby lock pro line BL4-736 but the fabric does not walk. Could anyone help ?


  1. Tighten the Large Silver Presser Screw on the top of the machine about 2 full rotation turns to the right.
  2. If it already tightened down, loosen (turn to left), 2 full turns. Use a nickel to fit into the slot on the top of the presser Screw.
  3. Dull blades can cause fabric not to feed, just bunch up in front of the blades.

Sep 01, 2015 | Baby Lock Sewing Machines

1 Answer

Can't lock my cutting blade on my baby lock evolve serger for cover stitch.


99% of all serger problems can be solved by going to the manual, unthreading, cleaning out all lint and 'stuck' threads, pieces of fabric and such. After the visible stuff is removed a blast of canned air is used to get the tiny pieces.
It is possible that there is an obstruction of some sort that is keeping the blade from 'locking' in to place. Check the spring that holds the blade in place and also (carefully) the blade for small damaged areas. If possible you may be able to unscrew and reinstall either the old blade or a new one (should be in the kit that came with your serger).
If none of these measures work the blade assembly may need adjustment by a technician.

Feb 28, 2015 | Baby Lock Sewing Machines

1 Answer

My baby lock BL4-434DF is having trouble serging over even quite thin cross seams. I have changed bottom blade, which didn't make any difference. I am sure it has to do with positioning of bla


  1. Have lower blade even with the needle plate
  2. Have upper blade overlap (like shears) at least 1/32 of an inch or less.
  3. The blades must meet but not overlap too much or fabric will just jam
  4. Move 1 blade at a time.
  5. Run machine Without it being threaded to check progress

Jan 03, 2015 | Baby Lock Sewing Machines

1 Answer

Could you send a picture of what the blade and hook look like when they are put back correctly I think this would help. I think I may have put it back together incorrectly


The Baby Lock Imagine overlocker/serger is so easy to use and set up, you'll love it! The blade should be flush with the sewing bed when installed correctly. I'm not sure which part is being referred by "the hook", can you elaborate ... is it the loopers?? Here is the address for the manual http://pdfretriever.com/ref_sien.php?ID=2411572&lg=E&src=8

Apr 30, 2014 | Baby Lock Imagine

1 Answer

Cutter blade remains locked.


when you release the blade, sometimes you have to reengage it manually, turn it to unlock, machine off (safety only) push up on bottom of upper blade until it stops. turn hand wheel and watch if blade is moving. If not repeat. When it moves your good to go.

Feb 15, 2014 | Baby Lock Imagine

1 Answer

Overlocker Instructions


Bottom blade should be flush with the stitch plate. The top blade should pass below the stitch plate at the bottom end of the stroke.

Nov 22, 2013 | Baby Lock Sewing Machines

1 Answer

How to replace the upper cutter on the baby lock? which screws to release the old blade?


I also have a babylock eclipse BLE1DX serger & here's how my book says to do it

to replace the upper cutting blade
1.open the front panel
2.remove the screw holding the upper blade
remove the upper blade
3.position the new blade in the blade slot, replace the screw.as you tighten the screw, hold the blade up in it's highest position
4.close blade cover. close front cover

hope this helps you
good luck

Sep 12, 2011 | Baby Lock Eclipse Serger

1 Answer

My Evolve veers off the fabric when it comes to something thicker


Sounds like you need new blade(s). You can probably change the upper blade which usually wears out first. The lower (fixed) one is more difficult.

Jan 30, 2009 | Baby Lock Evolve

1 Answer

Left thread needle


change the knife blades

Mar 12, 2008 | Baby Lock Eclipse Serger

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