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Maintenance And Tips

Leather Machine COBRA CLASS 3, Maintenance And Tips

Introducing the Leather Machine COBRA CLASS 3 – a powerful and versatile stitching machine for leather enthusiasts. Discover the key to maintaining its exceptional performance with our comprehensive maintenance and tips manual, available for free download from manualshive.com. Enhance your craftsmanship and download the manual today!

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Summary of Contents for COBRA CLASS 3

Page 1: ... carry the thread around the bobbin case and after the hook releases the thread allows the thread to pull up into the leather Check spring 4 The check spring maintains tension on the thread as the take up lever returns to the top position Needles 5 The needle must be installed correctly Make sure that the long groove is on the left and the scarf is on the right Needles are tempered so after usage ...

Page 2: ...lthere is not enough tension the bobbin thread is visible on top of the leather you may have to clean out under the bobbin case spring After hundreds of yards of thread pass under the bobbin case spring microscopic fibers of thread along with leather dust and other debris start to collect under the bobbin case spring causing the spring to spread and give false tension lf this is the case then you ...

Page 3: ...at you are sewing For the most part the height is set at medium to high This will allow most applications to feed whether thick or thin without getting caught on the feet and impeding the motion of the feed system lf you are manufacturing one item like belts where the thickness is constant then you would set the height to accommodate the belts thickness This adjustment is in the back of the machin...

Page 4: ...sen the screw then drop the needle until it covers half of the hole and try sewing lf the machine sews properly then you will have to advance the shuttle hook about L 32 lf it still does not work the lower the needle again until the top of the needle is even with the bottom of the hole and then try again lf this corrects the problem then you will have to advance the shuttle hook about Lf G lf your...

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