Tightng the needle bar . bobbin case screw is lose adjust the screw


needle portion is just adjust take bottam thread

I'm going to suggest taking back for exchange. Obviously, there shouldn't be any noise of something hitting, so I'm going to say the either something internally is bent, broken, or misalligned. With it being as new as it is, you shouldn't have any problems at all, especially one of this nature.

HI,

You will have to retime your needle.Try this out:

"Timing" is the alignment of the needle at its lowest point and the hook on the bobbin case. The point of the hook must pass directly behind the "scarf" of the needle fo the interlocking loop of a "single needle lockstitch" machine to occur. Look closely at the needle. You will see the long groove along the front of it. This is where the thread rides as the needle goes up and down. If you look at the back of the needle you will see a flattened area just above the point. This is the "scarf"; it's flattened to permit the hook of the bobbin case to run right by it and catch the loop.
When a machine is out of "time", the hook is either too early or too late, OR to far away from the scarf to make the connection. You can send a machine out of time by hitting a pin, or breaking a needle "hard" (too fast through too many layers, etc.). You can usually identify a machine that is out of time by multiple skipped stitches at high speeds, or by stitching fast and then quickly putting it into reverse. Sometimes, you can scrape by if you rotate the insertion of your needle a little bit, this can help compensate for minor timing issues.

Look down in there there is a hook to grab the top thread may have gotten bent or loosend , you may also try comparing the new neddle with the old and be sure it is correct, look for a small latch under the grab foot, please rate -jeff