Plastic Gears .....
#21
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Location: Victorian Sweatshop Forum
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Cari
#22
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Join Date: Feb 2012
Posts: 8,091
If you have a manual always defer to it for maintenance instructions. If it contains any.
Our Bernina 930 Record owners manual has no maintenance instructions at all. I do have a lubrication manual though and will defer to that when next I take the top off. However right now I disremember what it says about greasing the gears and I can't find it.
Joe
Our Bernina 930 Record owners manual has no maintenance instructions at all. I do have a lubrication manual though and will defer to that when next I take the top off. However right now I disremember what it says about greasing the gears and I can't find it.
Joe
#23
Most disappointing to me are the beautiful machines with plastic/nylon innards. Here are two of mine:
[ATTACH=CONFIG]489315[/ATTACH][ATTACH=CONFIG]489316[/ATTACH]
The Kennie is a Gritzner-Kayser from Germany and has a plastic cam stack for your sewing and repairing pleasure. (Actually, once the stack is cracked, the machine is toast.) The Belvedere-Adler is Japanese and has a nice, big ol' fat plastic gear controlling the stitch width. I've read that such gears should be greased but never oiled with acidic oils as they will break down the plastic surface.
I found this in a recently purchased cabinet:
[ATTACH=CONFIG]489317[/ATTACH]
[ATTACH=CONFIG]489315[/ATTACH][ATTACH=CONFIG]489316[/ATTACH]
The Kennie is a Gritzner-Kayser from Germany and has a plastic cam stack for your sewing and repairing pleasure. (Actually, once the stack is cracked, the machine is toast.) The Belvedere-Adler is Japanese and has a nice, big ol' fat plastic gear controlling the stitch width. I've read that such gears should be greased but never oiled with acidic oils as they will break down the plastic surface.
I found this in a recently purchased cabinet:
[ATTACH=CONFIG]489317[/ATTACH]
#24
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Join Date: Jan 2010
Location: Outer Space
Posts: 9,319
Well, shoot! I didn't know the Lady Kenmore had a plastic cam stack. It's on my wish list and I've wanted one for a while. Now I'll have to rethink that. A nylon gear is one thing, but a camstack is another. Like you said, it's toast if the camstack goes:< If you have a minute, I'd love to see a photo of that camstack.
#25
Here's a shot of the stack (perpendicular to the front of the machine):
[ATTACH=CONFIG]489332[/ATTACH]
I like the horizontal 'music box' orientation of the stack and there doesn't seem to be a problem with it but the machine needs a thorough rebuild, something I've not had time to do.
[ATTACH=CONFIG]489332[/ATTACH]
I like the horizontal 'music box' orientation of the stack and there doesn't seem to be a problem with it but the machine needs a thorough rebuild, something I've not had time to do.
#28
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Join Date: Aug 2014
Location: Victorian Sweatshop Forum
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[QUOTE=KenmoreRulesAll;6862403]Most disappointing to me are the beautiful machines with plastic/nylon innards.
In some cases I've read that people have repaired their plastic/nylon gears/camstacks with super glue. This is an area that I foresee in the future someone will start making replacements with a 3D printer. It's already been discussed at some length on the vintage Necchi Yahoo group as there are two Necchis that are infamous for a plastic part. The Lydias camstack and the Supernovas worm gear.
Cari
In some cases I've read that people have repaired their plastic/nylon gears/camstacks with super glue. This is an area that I foresee in the future someone will start making replacements with a 3D printer. It's already been discussed at some length on the vintage Necchi Yahoo group as there are two Necchis that are infamous for a plastic part. The Lydias camstack and the Supernovas worm gear.
Cari
#29
If it were a machine I really enjoyed using, I would do anything to repair it (replacement parts, super glue, duct tape, etc.). To make vintage parts with 3D would be extremely helpful. I have a BF Supernova and I'm going to take a look for its worm gear. Hope for the best!
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