When is the last time you had it serviced? It may be that your needles are not lined up properly. Make sure you are using the HA 1SP #11-14 needles. It's written on the machine right above the needle area to easily remember.
That would be frustrating. There are a few things you could try. Make sure your thread isn't old. Thread can dry out and become weaker with age. Since serger thread is typically thinner this compounds the issue. If it snaps easily when you tug on it try different thread. Make sure your presser foot is up when threading. Also maybe floss your tension discs to make sure there isn't something stuck in the disc. Your tension could also be too tight on that thread. One thing I've also had happen is the thread gets wrapped around the thread guide at the top so double check that too.
Why my serger breaks the right needle frecuently? Or breaks the inferior thread many times while sewing?
you may try by changing the needle, I did that with mine and it worked
When is the last time you had it serviced? It may be that your needles are not lined up properly. Make sure you are using the HA 1SP #11-14 needles. It's written on the machine right above the needle area to easily remember.
I have hard time with threading the lower loop. I follow properly but it keeps breaking. Frustrating
That would be frustrating. There are a few things you could try.
Make sure your thread isn't old. Thread can dry out and become weaker with age. Since serger thread is typically thinner this compounds the issue. If it snaps easily when you tug on it try different thread.
Make sure your presser foot is up when threading. Also maybe floss your tension discs to make sure there isn't something stuck in the disc. Your tension could also be too tight on that thread.
One thing I've also had happen is the thread gets wrapped around the thread guide at the top so double check that too.