If you go on YouTube and key in Brother serger 1034d threading they show you all kinds of good stuff. How to thread it, how to use different feet and the different stitches you can make.
First re-thread the machine starting with the upper looper(3), then lower looper(4), then the needles(2,1). If that doesn't fix it, it may be a matter of loosening the needle tension. Lastly slowly turn the handwheel and see where the loopers cross. The upper looper should come in just behind the scarf of the lower looper without any contact on the forward motion. Otherwise Your needlebar height could be off. Timing a serger is a very precise process and making adjustments could throw it out even further.
mine just did the same thing - i opened it up (you have to remove the light) and it's a small plastic piece that seems to be just glued into place to lift the pressure foot when it rotates... a bit disappointing - i will try glueing it back but i don't know if it will last for long. i am very disappointed!!!
http://www.brother-usa.com/VirData/Content/en-US%5CHAD%5CConsumer%5CUsersManual%5C1034D%20User%20Manual%20English%20Spanish%201.pdf
p.9 Grab the white plastic extension bed to the left side of the front of the machine and slide it to the left till it comes off.
If you need a replacement front cover, you can order one here:
Front Cover Brother XB09797 001
You could also order one through most sewing machine repair shops and dealers.
It is not a special stitch, just a three thread overlocked seam with left needle but you do it with the blind hem foot and fold your fabric into a "z" shape, wrong side upwards and raw edge at the bottom to be trimmed by the blade as you seam. The folded edge is run against the "blade" of your blind hem foot to ensure even "bite" of the upper fold by the needle while the loopers form the seam around your raw edge below. Then when you finish and press the z fold open, you obviously want a little as possible of the needle stitch to show on the right side of the hemline. So you need to practice and adjust the position of the blind hem guide to ensure you are getting the needle to stitch just onto the folded edge.
I have only ever done it on knit fabric, as it does show and not very successful on a curved hem edge, straight edge is fine. You only want to catch a minimal amount of the fabric with the needle, lengthen the stitch length to 3 so there is less stitches per inch as it will show on the right side.There is a tutorial here on youtube http://www.youtube.com/watch?v=aDJbFNZrCUI
Sheryl EvansI would advise you to take the machine ti a Brother dealer & have it repaired. These machine are hard to fix your self as everything must line up to work properly. If there isn't one close to you there is an online called 'Ken's Sewing Center'. They are authorized dealers & very reasonable. Do a search & it should come up. :) I have used them before & they are excellent to work with. They also do online layaways so it you need anything they will help with it. I am only a customer & not affiliated wilt the, in any way. :)
