Brother XL2600 Mechanical Sewing Machine "xl 2620" Questions

How do I adjust the tension on my brother xl-2620 Rotate the tension dial (which is the dial furthest to the left) right or left to adjust the tension.

...XL 2620 I cannot seem to get the correct stitch tension on this machine and dont have an instruction book,what are the normal settings for straight stiching.IE Quilting. please. try this links for a ...

XL 2620 the needle has hit the bottom plate and snapped the needle It looks like it's come out of line ???? Is there any way of adjusting this ? Or should I take it to a specialist shop to have it

...XL-2620 sewing machine has stopped working. When I try to turn the handwheel it won't turn and when I press the foot controller it won't work either. It was fine when I put it away ...