iknowthisguy13 Report post Posted July 9, 2015 OK, at this point Springfield leather wants me to ship the sewing machine back for repair so they can fix the timing issues. Bobby from SLC said he normally will reference another machine in the shop to time the dragon cam and timing cam (both on the back of the machine) set correctly since there isn't a good reference point for them. Could I get some Cobra Class 4 owners to take some pictures of these cams in relation to their set screws? Once I have these set correctly I can time the shuttle and cross my fingers. The video I used to check these cams is the fifth one down here: http://www.leathermachineco.com/videostips/ Apparently they don't actually want you to change these, nor are the reference points accurate. Thanks all. -Joe Quote Share this post Link to post Share on other sites
iknowthisguy13 Report post Posted July 10, 2015 Okay, I got in touch with Al Bane through the Class 4 group on Facebook. After talking through the alignment for the shuttle hook timing, we determined that the hex bolt facing down and slightly back when the needle was in position was not right. I ended up loosening the very first cam to the far left on the back and tapping it down and around until my hex bolt was facing me directly when the needle was in position to time the shuttle. Then I went back through the other two cams and timed them, then timed the shuttle hook. Tested it and everything worked beautifully. Now if I hadn't stabbed through my thumb nail and partway through my thumb, I would be a very happy camper. Thank you everyone for the help. I learned alot about the anatomy of my machine. Quote Share this post Link to post Share on other sites
Colt W Knight Report post Posted July 10, 2015 Okay, I got in touch with Al Bane through the Class 4 group on Facebook. After talking through the alignment for the shuttle hook timing, we determined that the hex bolt facing down and slightly back when the needle was in position was not right. I ended up loosening the very first cam to the far left on the back and tapping it down and around until my hex bolt was facing me directly when the needle was in position to time the shuttle. Then I went back through the other two cams and timed them, then timed the shuttle hook. Tested it and everything worked beautifully. Now if I hadn't stabbed through my thumb nail and partway through my thumb, I would be a very happy camper. Thank you everyone for the help. I learned alot about the anatomy of my machine. I did that fussing with my Consew 206. Ran the needle through the my thumbnail, all the way through glancing the bone. It was sore fore a very long time, and bled like a stuck hog. Quote Share this post Link to post Share on other sites
Marriedpairleatherworks Report post Posted July 13, 2021 I'm having a similar issue. My machine will bind up at times. The needle is down when it suddenly stops. It seems that the shuttle is really loose. Any way to tighten it up some? Quote Share this post Link to post Share on other sites
Traci Report post Posted February 14, 2022 I'm trying to sew my second project on my new cobra 4 machine and the machine locked up on me. The needle will not raise at all. The thread had bunched up under the leather and in the bobbin mechanism but i got all of that thread out and i still can't get it to work. Can you help me? Quote Share this post Link to post Share on other sites