How to thread a topaz 20
You posted this under the wrong classification. If you haven't reposted this in the correct area, I'll post a solution here. I have a Designer Ruby and I believe that it threads the same way as the Designer Topaz 20.
The top thread spool needs to be put on the spindle such that the thread comes off the spool heading to the left. Make sure that the presser foot is up and the needle is in the highest position. At all times move the thread from your right to left as you guide it up and down through the channels/guides.
If the spindle is horizontal, then bring the thread over and behind the pre-tension guide. Then bring the thread down and under the thread guide. The pre-tension guide is on the top of the machine. For a spool on the spindle that is vertical, bring the thread under the thread guide. Continue going to the left side of the machine and bring the thread down through the tension discs in the first channel (follow the arrows).
Then bring the thread up in the next channel and through the slot in the take-up lever. Bring the thread back down behind the thread guide above the needle. Then thread the needle so that the thread goes from the front to the back of the needle. (Make sure that the needle is correctly positioned in the needle holder; the groove should face forward.)
The bobbin can jam for a number of reasons. If your thread spool is on the horizontal spindle, make sure that a metal presser foot is installed. Place an empty bobbin correct side up (my machine takes the green plastic bobbins with the Husqvarna H symbol up) on the bobbin winding pin. Bring the thread up from under the presser foot to the thread guide in front of the right side of the spool pin. The guide is in front of the pin. Then bring the thread through the hole on the top of the bobbin. Hold onto this thread and move the bobbin winder lever to the left (towards the bobbin). You should see a prompt on the LCD screen; press Play. Either cut the excess thread with the thread cutter to the right of the bobbin or with a pair of scissors after a few winds are made. (I usually need to press pause but this leads to my mistake. I sometimes drop the extra thread and it gets wound into the bobbin. This leads to a clicking noise or jams at the bobbin.) If you use the pause button, press Play to finish winding the bobbin. (I call them Play and Pause since they look like those buttons on my cassette and CD players.) When the bobbin is fully wound, the winder lever should snap to the right. Remove the bobbin and cut off the extra thread.
For large spools of thread or specialty threads, place the spool on the pin vertically. Bring the thread over the pre-tension guide and down through that tension disc. Then bring the thread around the thread guide (this time go from the left to the right) and back to the bobbin thread guide and into the hole on the top of the bobbin. Follow the other directions for bobbin winding.
Slide open the bobbin cover. Next make sure that you put the bobbin into the bobbin case with the H logo up. The thread should come off to the left. Then hold the bobbin in the bobbin case with one finger and pull the thread right and left so that it snaps into the spring just to the right of the center front of the bobbin case. Next bring the thread towards the back of the bobbin case and get it into the catch on the left rear side of the case. Finally bring the thread back towards the front of the left side of the case and leave it to the right of the thread cutter, leaving an end of the thread sticking out. Replace the bobbin cover and pull the thread to the left to cut the thread.
With this machine, there are several points where the thread tension cause a problem. The bobbin case tension can be adjusted with a set screw but it's easy to strip the tiny screw's threads. (On an older Husqvarna machine with a vertical bobbin case, it was easier to test. The bobbin case with the bobbin in place dangled from the thread when held by the thread outside of the machine. However one could pull the thread out while holding the bobbin to keep it from turning..) If the tension springs behind the top thread are damaged, you should see a tension problem of thread breakage or loose top tension on the sewed test seam.
I hope this helps. The Designer Ruby has an option to display the threading guide on the LCD screen. If the Topaz has the same feature, go to the index and look up top threading or bobbin threading. This is easier to use than the one in the manual. You may be able to get a manual from a Husqvarna Dealer at a reasonable price.
Aug 14, 2012 |
Cars & Trucks