I got my Bernina serviced in the fall and he adjusted the hook, timing and polished hook so I could sew with machine but he told me he wasn't sure how long it would last and may need to order a part- May need a hook?
Wondering what part I may need to order and can I do this or will the Serivce man that fixes the sewing machines at the store have to do this.
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Re: Hook for Bernina Activa 130
If the machine is sewing OK, then the timing is fine.
Sometimes the tip of the hook will collide with the needle and create a burr.......if you rub your finger ligtly on the point of the hook you may feel a slight burr.....if not, it is fine, if yes, then very fine emery paper 1600 grade will polish the burr off.
Work slowly and carefully on each side and feel the tip frequently, it will not take much to smooth it down.
If corroded or bent, the hook may need replacing, but from the limited info here, it seems unlikely to need much attention if the service and adjustments were only done a few months ago and you have not been using the machine constantly. Do you change your needle often ? That can solve many problems very quickly.
Bernina have a parts system that relies entirely on part numbers, not descriptions, and only authorised dealers have access to the codes via Parts & Service Manuals, so if you continue to have troubles, the dealer is the one to order the part for you....be sure to identify the exact model and the item you require.
If they have already seen the machine and know what you need, they are clearly best placed to get the correct part.
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Fit a new needle, clean and oil the hook race, whether-or-not your manual says it doesn't need it and check that you have some tension on the thread coming out of the bobbin case and top tension unit. Are you threading the top thread with the foot up or down ? You should always thread the machine with the foot up to ensure the thread goes through the tension unit properly.
The only parts that should be able to 'fall out' during shipping are the bobbin case and hook/shuttle, assuming the bobbin case was fitted in the first-place. If your machine arrived with the bobbin door open and the round black plastic hook retainer dropped down out of the hook race (on its hinge), the hook can be replaced quite simply and the hook retainer clicked back into position to retain it - you might find it easier to tip the machine back slightly when putting the hook back. If the hook retainer is still in position, just press the flat metal spring on the left of the 'U'-shaped metal retainer and the hook retainer will pop forward allowing you to put the hook in andclose back up. Make sure it clicks back into position. Does this help ???
Check that your needle is centred when straight-stitch is selected and / or that you have the correct stitch-plate fitted. Is the needle breaking because it is hitting the stitch-plate or is it breaking when the needle goes down through the slot/hole in the stitch-plate. If you are sewing zig/zag or patterns, you must have a slotted stitch-plate fitted. If it's breaking when the needle passes below the stitch-plate, then take the bobbin /bobbin case out and the hook/shuttle and see if it still happens. If it does, the timing on your machine may be out and need professional adjustment. If it doesn'y happen after removing just the bobbin case, make sure the bobbin case is being correctly fitted.
The Activa range came with a lightweight plastic hook/shuttle that Bernina claims does not require oiling. Oiling/greasing of the main drive mechanism should only be done by a competent Bernina service engineer - it's not like the 'old' Berninas that had red paint spots next to all the oiling points ! I, however, always recommend that the hook/shuttle is removed every 3-5 bobbins-worth of thread and the hook race is thoroughly cleaned with a cotton-bud. Although Bernina says it doesn't need oil, I find that a small drop of oil on the hook race running surface is extremely beneficial to keeping the noise-level down and improving the consistency of the stitch formation.
The Activa range is fitted with a light-weight part-plastic hook/shuttle that Bernina claims does not require oiling. However, this does not mean it shouldn't be regularly cleaned and I'd recommend that it is also lightly oiled at the same time. Remove the bobbin case, press the metal lever to the top left of the bobbin door and the black plastic hook/shuttle retainer should pop open so that the hook/shuttle can be removed, or it will just drop out anyway. Use a cotton bud to firmly clean around the inside edge of the hook race (the round piece that the hook/shuttle sits in. Give the whole thing a good clean to make sure any surface grime/fluff is removed. Put a small drop of oil on the running surface of the hook race - the recessed groove around the inside edge, before replacing the hook/shuttle and holding in place by pressing the hook/shuttle retainer back until the securing lever clicks back into place. Rotate the handwheel once to distribute the oil and off you go. Dont overoil but do this regularly and your machine will run much quieter and produce a consistent stitch formation.
Remove needle, needleplate, presser foot and bobbin case. Now take a lint brush and clean under the feed dogs and hook area. take the bernina oiler(must be bernina oil only) now place a drop just below where the bobbin case clip on and one small drop under the feed dog area. replace items, sew out a test sample and away you go.